./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/list-properties/simple-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b18a205a-dc35-4e0b-8638-dbae59557c40/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b18a205a-dc35-4e0b-8638-dbae59557c40/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_b18a205a-dc35-4e0b-8638-dbae59557c40/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b18a205a-dc35-4e0b-8638-dbae59557c40/bin/ukojak-verify-CZk0znPC7b/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-properties/simple-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b18a205a-dc35-4e0b-8638-dbae59557c40/bin/ukojak-verify-CZk0znPC7b/config/svcomp-MemCleanup-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b18a205a-dc35-4e0b-8638-dbae59557c40/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-memcleanup) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7a8519f8a7c8757a31f412eb366ebcbc8dd5e899d9ff0dd6bfc4f50c36dfb89b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 01:40:51,364 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 01:40:51,422 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b18a205a-dc35-4e0b-8638-dbae59557c40/bin/ukojak-verify-CZk0znPC7b/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2024-12-06 01:40:51,426 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 01:40:51,427 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 01:40:51,446 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 01:40:51,447 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 01:40:51,447 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 01:40:51,448 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 01:40:51,448 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 01:40:51,448 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 01:40:51,448 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 01:40:51,448 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 01:40:51,448 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 01:40:51,448 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 01:40:51,448 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-12-06 01:40:51,448 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-12-06 01:40:51,448 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 01:40:51,449 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 01:40:51,449 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 01:40:51,449 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 01:40:51,449 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 01:40:51,449 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 01:40:51,449 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 01:40:51,449 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 01:40:51,449 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 01:40:51,449 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 01:40:51,450 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 01:40:51,450 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 01:40:51,450 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 01:40:51,450 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 01:40:51,450 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 01:40:51,450 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 01:40:51,450 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_b18a205a-dc35-4e0b-8638-dbae59557c40/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-memcleanup) ) 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 -> 7a8519f8a7c8757a31f412eb366ebcbc8dd5e899d9ff0dd6bfc4f50c36dfb89b [2024-12-06 01:40:51,695 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 01:40:51,703 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 01:40:51,705 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 01:40:51,706 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 01:40:51,706 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 01:40:51,707 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b18a205a-dc35-4e0b-8638-dbae59557c40/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/list-properties/simple-1.i [2024-12-06 01:40:54,368 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b18a205a-dc35-4e0b-8638-dbae59557c40/bin/ukojak-verify-CZk0znPC7b/data/a8cec1c79/c1b05741f47f4d0dbc973acc60900592/FLAGeebdff530 [2024-12-06 01:40:54,646 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 01:40:54,646 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b18a205a-dc35-4e0b-8638-dbae59557c40/sv-benchmarks/c/list-properties/simple-1.i [2024-12-06 01:40:54,657 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b18a205a-dc35-4e0b-8638-dbae59557c40/bin/ukojak-verify-CZk0znPC7b/data/a8cec1c79/c1b05741f47f4d0dbc973acc60900592/FLAGeebdff530 [2024-12-06 01:40:54,959 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b18a205a-dc35-4e0b-8638-dbae59557c40/bin/ukojak-verify-CZk0znPC7b/data/a8cec1c79/c1b05741f47f4d0dbc973acc60900592 [2024-12-06 01:40:54,961 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 01:40:54,963 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 01:40:54,965 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 01:40:54,965 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 01:40:54,969 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 01:40:54,970 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:40:54" (1/1) ... [2024-12-06 01:40:54,971 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4671c6db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:40:54, skipping insertion in model container [2024-12-06 01:40:54,971 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:40:54" (1/1) ... [2024-12-06 01:40:54,994 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 01:40:55,225 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 01:40:55,234 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 01:40:55,265 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 01:40:55,291 INFO L204 MainTranslator]: Completed translation [2024-12-06 01:40:55,291 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:40:55 WrapperNode [2024-12-06 01:40:55,291 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 01:40:55,292 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 01:40:55,292 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 01:40:55,293 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 01:40:55,299 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:40:55" (1/1) ... [2024-12-06 01:40:55,309 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:40:55" (1/1) ... [2024-12-06 01:40:55,322 INFO L138 Inliner]: procedures = 124, calls = 19, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2024-12-06 01:40:55,322 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 01:40:55,323 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 01:40:55,323 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 01:40:55,323 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 01:40:55,328 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:40:55" (1/1) ... [2024-12-06 01:40:55,328 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:40:55" (1/1) ... [2024-12-06 01:40:55,330 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:40:55" (1/1) ... [2024-12-06 01:40:55,330 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:40:55" (1/1) ... [2024-12-06 01:40:55,334 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:40:55" (1/1) ... [2024-12-06 01:40:55,335 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:40:55" (1/1) ... [2024-12-06 01:40:55,338 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:40:55" (1/1) ... [2024-12-06 01:40:55,339 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:40:55" (1/1) ... [2024-12-06 01:40:55,340 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:40:55" (1/1) ... [2024-12-06 01:40:55,341 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 01:40:55,342 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 01:40:55,342 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 01:40:55,342 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 01:40:55,343 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:40:55" (1/1) ... [2024-12-06 01:40:55,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 01:40:55,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b18a205a-dc35-4e0b-8638-dbae59557c40/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 01:40:55,372 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b18a205a-dc35-4e0b-8638-dbae59557c40/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 01:40:55,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b18a205a-dc35-4e0b-8638-dbae59557c40/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 01:40:55,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-06 01:40:55,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-06 01:40:55,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-06 01:40:55,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 01:40:55,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-12-06 01:40:55,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-12-06 01:40:55,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 01:40:55,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 01:40:55,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 01:40:55,478 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 01:40:55,479 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 01:40:55,581 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-12-06 01:40:55,581 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 01:40:55,612 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 01:40:55,612 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-06 01:40:55,613 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:40:55 BoogieIcfgContainer [2024-12-06 01:40:55,613 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 01:40:55,613 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 01:40:55,613 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 01:40:55,623 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 01:40:55,623 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:40:55" (1/1) ... [2024-12-06 01:40:55,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 01:40:55,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:40:55,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 18 states and 24 transitions. [2024-12-06 01:40:55,678 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2024-12-06 01:40:55,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-06 01:40:55,680 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:40:55,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:40:55,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:40:55,806 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 01:40:55,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:40:55,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 18 states and 23 transitions. [2024-12-06 01:40:55,840 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2024-12-06 01:40:55,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-06 01:40:55,840 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:40:55,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:40:55,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:40:55,951 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 01:40:56,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:40:56,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 21 states and 28 transitions. [2024-12-06 01:40:56,016 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2024-12-06 01:40:56,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-06 01:40:56,017 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:40:56,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:40:56,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:40:56,207 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 01:40:56,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:40:56,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 25 states and 34 transitions. [2024-12-06 01:40:56,434 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 34 transitions. [2024-12-06 01:40:56,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-06 01:40:56,436 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:40:56,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:40:56,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:40:56,454 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 01:40:56,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:40:56,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:40:56,517 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 01:40:56,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 01:40:56,551 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2024-12-06 01:40:56,573 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 01:40:56 ImpRootNode [2024-12-06 01:40:56,573 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 01:40:56,574 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 01:40:56,574 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 01:40:56,574 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 01:40:56,574 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:40:55" (3/4) ... [2024-12-06 01:40:56,575 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-06 01:40:56,609 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 6. [2024-12-06 01:40:56,650 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b18a205a-dc35-4e0b-8638-dbae59557c40/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 01:40:56,651 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b18a205a-dc35-4e0b-8638-dbae59557c40/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 01:40:56,651 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 01:40:56,652 INFO L158 Benchmark]: Toolchain (without parser) took 1688.66ms. Allocated memory is still 142.6MB. Free memory was 116.0MB in the beginning and 77.1MB in the end (delta: 38.9MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. [2024-12-06 01:40:56,652 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 142.6MB. Free memory was 83.5MB in the beginning and 83.5MB in the end (delta: 31.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:40:56,652 INFO L158 Benchmark]: CACSL2BoogieTranslator took 327.29ms. Allocated memory is still 142.6MB. Free memory was 115.8MB in the beginning and 98.8MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 01:40:56,653 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.14ms. Allocated memory is still 142.6MB. Free memory was 98.8MB in the beginning and 97.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:40:56,653 INFO L158 Benchmark]: Boogie Preprocessor took 18.16ms. Allocated memory is still 142.6MB. Free memory was 97.5MB in the beginning and 96.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:40:56,653 INFO L158 Benchmark]: RCFGBuilder took 271.23ms. Allocated memory is still 142.6MB. Free memory was 96.2MB in the beginning and 82.6MB in the end (delta: 13.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 01:40:56,653 INFO L158 Benchmark]: CodeCheck took 959.68ms. Allocated memory is still 142.6MB. Free memory was 82.6MB in the beginning and 81.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:40:56,654 INFO L158 Benchmark]: Witness Printer took 77.26ms. Allocated memory is still 142.6MB. Free memory was 81.3MB in the beginning and 77.1MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:40:56,655 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, 18 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 72 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 44 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 76 IncrementalHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 28 mSDtfsCounter, 76 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 167 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 60 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - CounterExampleResult [Line: 531]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L532] List a = (List) malloc(sizeof(struct node)); [L533] COND FALSE !(a == 0) [L534] List t; [L535] List p = a; [L536] a->h = 2 VAL [a={-1:0}, p={-1:0}] [L537] COND FALSE !(__VERIFIER_nondet_int()) [L544] p->h = 2 [L545] p->n = 0 [L546] p = a VAL [p={-1:0}] [L547] COND TRUE p!=0 [L548] EXPR p->h VAL [p={-1:0}] [L548] COND FALSE !(p->h != 2) [L551] EXPR p->n [L551] p = p->n [L547] COND FALSE !(p!=0) [L553] return 0; VAL [\result=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 142.6MB. Free memory was 83.5MB in the beginning and 83.5MB in the end (delta: 31.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 327.29ms. Allocated memory is still 142.6MB. Free memory was 115.8MB in the beginning and 98.8MB in the end (delta: 16.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.14ms. Allocated memory is still 142.6MB. Free memory was 98.8MB in the beginning and 97.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 18.16ms. Allocated memory is still 142.6MB. Free memory was 97.5MB in the beginning and 96.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 271.23ms. Allocated memory is still 142.6MB. Free memory was 96.2MB in the beginning and 82.6MB in the end (delta: 13.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 959.68ms. Allocated memory is still 142.6MB. Free memory was 82.6MB in the beginning and 81.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 77.26ms. Allocated memory is still 142.6MB. Free memory was 81.3MB in the beginning and 77.1MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-12-06 01:40:56,669 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b18a205a-dc35-4e0b-8638-dbae59557c40/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memcleanup)