./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/heap-manipulation/merge_sort-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ef739d-a511-43e6-b53f-2a2c886f6b7c/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ef739d-a511-43e6-b53f-2a2c886f6b7c/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ef739d-a511-43e6-b53f-2a2c886f6b7c/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ef739d-a511-43e6-b53f-2a2c886f6b7c/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/heap-manipulation/merge_sort-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ef739d-a511-43e6-b53f-2a2c886f6b7c/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ef739d-a511-43e6-b53f-2a2c886f6b7c/bin/ukojak-verify-EEHR8qb7sm --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 15d1d7d49ed223522c6431664b8ff836ebc81296f5e11773e2197361bd8b13cf --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 20:39:50,415 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 20:39:50,501 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ef739d-a511-43e6-b53f-2a2c886f6b7c/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-13 20:39:50,509 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 20:39:50,510 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 20:39:50,545 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 20:39:50,546 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 20:39:50,546 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 20:39:50,546 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 20:39:50,547 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 20:39:50,547 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 20:39:50,547 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 20:39:50,547 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 20:39:50,547 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 20:39:50,547 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 20:39:50,547 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 20:39:50,547 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 20:39:50,547 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 20:39:50,548 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 20:39:50,548 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 20:39:50,548 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 20:39:50,548 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 20:39:50,548 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 20:39:50,548 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 20:39:50,548 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 20:39:50,548 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 20:39:50,548 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 20:39:50,548 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 20:39:50,549 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 20:39:50,549 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 20:39:50,549 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 20:39:50,549 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 20:39:50,551 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 20:39:50,552 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_d6ef739d-a511-43e6-b53f-2a2c886f6b7c/bin/ukojak-verify-EEHR8qb7sm Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 15d1d7d49ed223522c6431664b8ff836ebc81296f5e11773e2197361bd8b13cf [2024-11-13 20:39:50,852 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 20:39:50,861 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 20:39:50,863 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 20:39:50,865 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 20:39:50,865 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 20:39:50,866 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ef739d-a511-43e6-b53f-2a2c886f6b7c/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/heap-manipulation/merge_sort-1.i Unable to find full path for "g++" [2024-11-13 20:39:52,679 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 20:39:53,027 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 20:39:53,028 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ef739d-a511-43e6-b53f-2a2c886f6b7c/sv-benchmarks/c/heap-manipulation/merge_sort-1.i [2024-11-13 20:39:53,042 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ef739d-a511-43e6-b53f-2a2c886f6b7c/bin/ukojak-verify-EEHR8qb7sm/data/c8f456453/d9fe0540571a4e5aa00e13e173a7b916/FLAG1b9791684 [2024-11-13 20:39:53,058 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ef739d-a511-43e6-b53f-2a2c886f6b7c/bin/ukojak-verify-EEHR8qb7sm/data/c8f456453/d9fe0540571a4e5aa00e13e173a7b916 [2024-11-13 20:39:53,061 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 20:39:53,063 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 20:39:53,064 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 20:39:53,065 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 20:39:53,069 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 20:39:53,070 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 08:39:53" (1/1) ... [2024-11-13 20:39:53,071 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77e8f9fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:39:53, skipping insertion in model container [2024-11-13 20:39:53,072 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 08:39:53" (1/1) ... [2024-11-13 20:39:53,103 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 20:39:53,459 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ef739d-a511-43e6-b53f-2a2c886f6b7c/sv-benchmarks/c/heap-manipulation/merge_sort-1.i[22632,22645] [2024-11-13 20:39:53,506 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 20:39:53,519 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 20:39:53,564 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ef739d-a511-43e6-b53f-2a2c886f6b7c/sv-benchmarks/c/heap-manipulation/merge_sort-1.i[22632,22645] [2024-11-13 20:39:53,582 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 20:39:53,607 INFO L204 MainTranslator]: Completed translation [2024-11-13 20:39:53,608 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:39:53 WrapperNode [2024-11-13 20:39:53,608 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 20:39:53,609 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 20:39:53,609 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 20:39:53,609 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 20:39:53,615 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:39:53" (1/1) ... [2024-11-13 20:39:53,627 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:39:53" (1/1) ... [2024-11-13 20:39:53,651 INFO L138 Inliner]: procedures = 125, calls = 83, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 268 [2024-11-13 20:39:53,651 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 20:39:53,652 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 20:39:53,652 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 20:39:53,652 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 20:39:53,659 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:39:53" (1/1) ... [2024-11-13 20:39:53,660 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:39:53" (1/1) ... [2024-11-13 20:39:53,663 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:39:53" (1/1) ... [2024-11-13 20:39:53,666 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:39:53" (1/1) ... [2024-11-13 20:39:53,686 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:39:53" (1/1) ... [2024-11-13 20:39:53,694 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:39:53" (1/1) ... [2024-11-13 20:39:53,700 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:39:53" (1/1) ... [2024-11-13 20:39:53,705 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:39:53" (1/1) ... [2024-11-13 20:39:53,708 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 20:39:53,709 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 20:39:53,710 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 20:39:53,710 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 20:39:53,711 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:39:53" (1/1) ... [2024-11-13 20:39:53,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 20:39:53,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ef739d-a511-43e6-b53f-2a2c886f6b7c/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 20:39:53,750 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ef739d-a511-43e6-b53f-2a2c886f6b7c/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 20:39:53,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ef739d-a511-43e6-b53f-2a2c886f6b7c/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 20:39:53,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 20:39:53,783 INFO L130 BoogieDeclarations]: Found specification of procedure merge_single_node [2024-11-13 20:39:53,784 INFO L138 BoogieDeclarations]: Found implementation of procedure merge_single_node [2024-11-13 20:39:53,785 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2024-11-13 20:39:53,785 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2024-11-13 20:39:53,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 20:39:53,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 20:39:53,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 20:39:53,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 20:39:53,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-13 20:39:53,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-13 20:39:53,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 20:39:53,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 20:39:53,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 20:39:53,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 20:39:53,924 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 20:39:53,925 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 20:39:54,354 INFO L? ?]: Removed 66 outVars from TransFormulas that were not future-live. [2024-11-13 20:39:54,354 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 20:39:54,475 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 20:39:54,475 INFO L316 CfgBuilder]: Removed 33 assume(true) statements. [2024-11-13 20:39:54,475 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:39:54 BoogieIcfgContainer [2024-11-13 20:39:54,475 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 20:39:54,476 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 20:39:54,476 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 20:39:54,490 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 20:39:54,490 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:39:54" (1/1) ... [2024-11-13 20:39:54,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 20:39:54,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:39:54,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 80 states and 146 transitions. [2024-11-13 20:39:54,565 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 146 transitions. [2024-11-13 20:39:54,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-13 20:39:54,567 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:39:54,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:39:54,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:39:54,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 20:39:54,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:39:54,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 79 states and 129 transitions. [2024-11-13 20:39:54,717 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 129 transitions. [2024-11-13 20:39:54,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 20:39:54,717 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:39:54,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:39:54,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:39:54,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 20:39:54,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:39:54,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 82 states and 132 transitions. [2024-11-13 20:39:54,918 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 132 transitions. [2024-11-13 20:39:54,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-13 20:39:54,918 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:39:54,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:39:54,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:39:55,186 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 20:39:55,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:39:55,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 81 states and 130 transitions. [2024-11-13 20:39:55,313 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 130 transitions. [2024-11-13 20:39:55,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-13 20:39:55,313 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:39:55,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:39:55,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:39:55,398 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 20:39:55,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:39:55,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 81 states and 127 transitions. [2024-11-13 20:39:55,414 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 127 transitions. [2024-11-13 20:39:55,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-13 20:39:55,415 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:39:55,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:39:55,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:39:55,579 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 20:39:55,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:39:55,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 84 states and 132 transitions. [2024-11-13 20:39:55,844 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 132 transitions. [2024-11-13 20:39:55,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-13 20:39:55,844 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:39:55,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:39:55,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:39:55,984 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 20:39:55,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:39:55,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 85 states and 131 transitions. [2024-11-13 20:39:55,997 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 131 transitions. [2024-11-13 20:39:55,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-13 20:39:55,998 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:39:55,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:39:56,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:39:56,275 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 20:39:56,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:39:56,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 88 states and 132 transitions. [2024-11-13 20:39:56,754 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 132 transitions. [2024-11-13 20:39:56,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-13 20:39:56,754 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:39:56,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:39:56,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:39:56,972 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 20:39:57,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:39:57,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 91 states and 133 transitions. [2024-11-13 20:39:57,093 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 133 transitions. [2024-11-13 20:39:57,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-13 20:39:57,094 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:39:57,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:39:57,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:39:57,427 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 20:39:59,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:39:59,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 100 states and 143 transitions. [2024-11-13 20:39:59,026 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 143 transitions. [2024-11-13 20:39:59,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-13 20:39:59,026 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:39:59,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:39:59,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:39:59,239 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 20:40:00,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:40:00,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 107 states and 149 transitions. [2024-11-13 20:40:00,046 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 149 transitions. [2024-11-13 20:40:00,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-13 20:40:00,047 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:40:00,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:40:00,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:40:00,075 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 20:40:00,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:40:00,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:40:00,181 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 20:40:00,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:40:00,220 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 11 iterations. [2024-11-13 20:40:00,244 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 08:40:00 ImpRootNode [2024-11-13 20:40:00,245 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 20:40:00,245 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 20:40:00,245 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 20:40:00,246 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 20:40:00,246 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:39:54" (3/4) ... [2024-11-13 20:40:00,247 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-13 20:40:00,293 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ef739d-a511-43e6-b53f-2a2c886f6b7c/bin/ukojak-verify-EEHR8qb7sm/witness.graphml [2024-11-13 20:40:00,293 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 20:40:00,294 INFO L158 Benchmark]: Toolchain (without parser) took 7231.35ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 117.0MB in the beginning and 137.9MB in the end (delta: -20.9MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2024-11-13 20:40:00,294 INFO L158 Benchmark]: CDTParser took 0.45ms. Allocated memory is still 142.6MB. Free memory is still 78.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:40:00,294 INFO L158 Benchmark]: CACSL2BoogieTranslator took 543.99ms. Allocated memory is still 142.6MB. Free memory was 116.6MB in the beginning and 98.1MB in the end (delta: 18.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 20:40:00,295 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.81ms. Allocated memory is still 142.6MB. Free memory was 98.1MB in the beginning and 95.8MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:40:00,295 INFO L158 Benchmark]: Boogie Preprocessor took 56.78ms. Allocated memory is still 142.6MB. Free memory was 95.8MB in the beginning and 93.6MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 20:40:00,295 INFO L158 Benchmark]: RCFGBuilder took 766.01ms. Allocated memory is still 142.6MB. Free memory was 93.6MB in the beginning and 58.3MB in the end (delta: 35.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-13 20:40:00,296 INFO L158 Benchmark]: CodeCheck took 5768.47ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 58.3MB in the beginning and 140.6MB in the end (delta: -82.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:40:00,296 INFO L158 Benchmark]: Witness Printer took 47.66ms. Allocated memory is still 176.2MB. Free memory was 140.6MB in the beginning and 137.9MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:40:00,298 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 3 procedures, 80 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.7s, OverallIterations: 11, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 814 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 240 mSDsluCounter, 646 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 280 mSDsCounter, 181 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 559 IncrementalHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 181 mSolverCounterUnsat, 366 mSDtfsCounter, 559 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1258 GetRequests, 1172 SyntacticMatches, 2 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2221 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 152 NumberOfCodeBlocks, 152 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 120 ConstructedInterpolants, 0 QuantifiedInterpolants, 539 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 16/16 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 565]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L638] struct list *data = ((void *)0); VAL [data={0:0}] [L639] COND TRUE __VERIFIER_nondet_int() [L640] struct node *node = malloc(sizeof *node); [L641] COND FALSE !(!node) [L643] node->next = node [L644] node->value = __VERIFIER_nondet_int() [L645] struct list *item = malloc(sizeof *item); [L646] COND FALSE !(!item) [L648] item->slist = node [L649] item->next = data [L650] data = item [L639] COND FALSE !(__VERIFIER_nondet_int()) [L652] COND FALSE !(!data) [L654] CALL inspect_before(data) [L615] COND FALSE !(!(shape)) VAL [shape={-2:0}] [L616] shape->next VAL [shape={-2:0}] [L616] COND FALSE !(shape->next) [L622] COND FALSE !(!(shape)) VAL [shape={-2:0}] [L623] EXPR shape->next VAL [shape={-2:0}] [L623] COND FALSE !(!(shape->next == ((void *)0))) [L624] EXPR shape->slist VAL [shape={-2:0}] [L624] COND FALSE !(!(shape->slist)) [L625] EXPR shape->slist [L625] EXPR shape->slist->next VAL [shape={-2:0}] [L625] COND TRUE !(shape->slist->next == ((void *)0)) [L625] CALL fail() [L565] reach_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45ms. Allocated memory is still 142.6MB. Free memory is still 78.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 543.99ms. Allocated memory is still 142.6MB. Free memory was 116.6MB in the beginning and 98.1MB in the end (delta: 18.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.81ms. Allocated memory is still 142.6MB. Free memory was 98.1MB in the beginning and 95.8MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 56.78ms. Allocated memory is still 142.6MB. Free memory was 95.8MB in the beginning and 93.6MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 766.01ms. Allocated memory is still 142.6MB. Free memory was 93.6MB in the beginning and 58.3MB in the end (delta: 35.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * CodeCheck took 5768.47ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 58.3MB in the beginning and 140.6MB in the end (delta: -82.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 47.66ms. Allocated memory is still 176.2MB. Free memory was 140.6MB in the beginning and 137.9MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-13 20:40:00,326 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d6ef739d-a511-43e6-b53f-2a2c886f6b7c/bin/ukojak-verify-EEHR8qb7sm/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