./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/forester-heap/sll-rb-sentinel-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59daefaf-4c38-46d6-bf9d-75b26a3f224a/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59daefaf-4c38-46d6-bf9d-75b26a3f224a/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_59daefaf-4c38-46d6-bf9d-75b26a3f224a/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59daefaf-4c38-46d6-bf9d-75b26a3f224a/bin/ukojak-verify-EEHR8qb7sm/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/sll-rb-sentinel-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59daefaf-4c38-46d6-bf9d-75b26a3f224a/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-MemCleanup-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59daefaf-4c38-46d6-bf9d-75b26a3f224a/bin/ukojak-verify-EEHR8qb7sm --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 503a3e49b44041609ec1bba765b53912c88abb90ff278e61e68e863904faf4bb --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 20:38:55,118 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 20:38:55,220 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59daefaf-4c38-46d6-bf9d-75b26a3f224a/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2024-11-13 20:38:55,227 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 20:38:55,227 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 20:38:55,256 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 20:38:55,257 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 20:38:55,257 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 20:38:55,258 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 20:38:55,258 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 20:38:55,258 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 20:38:55,258 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 20:38:55,258 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 20:38:55,258 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 20:38:55,258 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 20:38:55,258 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-13 20:38:55,258 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-13 20:38:55,258 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 20:38:55,259 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 20:38:55,259 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 20:38:55,259 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 20:38:55,259 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 20:38:55,259 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 20:38:55,259 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 20:38:55,259 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 20:38:55,259 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 20:38:55,259 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 20:38:55,260 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 20:38:55,260 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 20:38:55,260 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 20:38:55,260 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 20:38:55,260 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 20:38:55,260 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 20:38:55,260 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_59daefaf-4c38-46d6-bf9d-75b26a3f224a/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 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 -> 503a3e49b44041609ec1bba765b53912c88abb90ff278e61e68e863904faf4bb [2024-11-13 20:38:55,602 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 20:38:55,616 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 20:38:55,618 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 20:38:55,619 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 20:38:55,620 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 20:38:55,621 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59daefaf-4c38-46d6-bf9d-75b26a3f224a/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/forester-heap/sll-rb-sentinel-2.i Unable to find full path for "g++" [2024-11-13 20:38:57,661 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 20:38:57,951 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 20:38:57,952 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59daefaf-4c38-46d6-bf9d-75b26a3f224a/sv-benchmarks/c/forester-heap/sll-rb-sentinel-2.i [2024-11-13 20:38:57,966 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59daefaf-4c38-46d6-bf9d-75b26a3f224a/bin/ukojak-verify-EEHR8qb7sm/data/c78359a38/777c6a28c87b4373a963fd9df647e211/FLAG12a7dc6d7 [2024-11-13 20:38:57,982 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59daefaf-4c38-46d6-bf9d-75b26a3f224a/bin/ukojak-verify-EEHR8qb7sm/data/c78359a38/777c6a28c87b4373a963fd9df647e211 [2024-11-13 20:38:57,984 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 20:38:57,986 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 20:38:57,987 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 20:38:57,988 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 20:38:57,992 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 20:38:57,993 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 08:38:57" (1/1) ... [2024-11-13 20:38:57,994 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76a634df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:38:57, skipping insertion in model container [2024-11-13 20:38:57,995 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 08:38:57" (1/1) ... [2024-11-13 20:38:58,032 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 20:38:58,336 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 20:38:58,346 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 20:38:58,390 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 20:38:58,434 INFO L204 MainTranslator]: Completed translation [2024-11-13 20:38:58,435 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:38:58 WrapperNode [2024-11-13 20:38:58,435 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 20:38:58,436 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 20:38:58,436 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 20:38:58,436 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 20:38:58,446 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:38:58" (1/1) ... [2024-11-13 20:38:58,463 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:38:58" (1/1) ... [2024-11-13 20:38:58,497 INFO L138 Inliner]: procedures = 119, calls = 40, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 124 [2024-11-13 20:38:58,501 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 20:38:58,502 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 20:38:58,502 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 20:38:58,502 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 20:38:58,508 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:38:58" (1/1) ... [2024-11-13 20:38:58,509 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:38:58" (1/1) ... [2024-11-13 20:38:58,512 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:38:58" (1/1) ... [2024-11-13 20:38:58,514 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:38:58" (1/1) ... [2024-11-13 20:38:58,525 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:38:58" (1/1) ... [2024-11-13 20:38:58,533 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:38:58" (1/1) ... [2024-11-13 20:38:58,538 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:38:58" (1/1) ... [2024-11-13 20:38:58,539 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:38:58" (1/1) ... [2024-11-13 20:38:58,546 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 20:38:58,547 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 20:38:58,547 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 20:38:58,547 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 20:38:58,548 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 08:38:58" (1/1) ... [2024-11-13 20:38:58,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 20:38:58,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59daefaf-4c38-46d6-bf9d-75b26a3f224a/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 20:38:58,596 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59daefaf-4c38-46d6-bf9d-75b26a3f224a/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 20:38:58,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59daefaf-4c38-46d6-bf9d-75b26a3f224a/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 20:38:58,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 20:38:58,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 20:38:58,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 20:38:58,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 20:38:58,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-13 20:38:58,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-13 20:38:58,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 20:38:58,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 20:38:58,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 20:38:58,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 20:38:58,784 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 20:38:58,786 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 20:38:59,067 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-13 20:38:59,067 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 20:38:59,143 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 20:38:59,143 INFO L316 CfgBuilder]: Removed 11 assume(true) statements. [2024-11-13 20:38:59,144 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:38:59 BoogieIcfgContainer [2024-11-13 20:38:59,144 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 20:38:59,145 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 20:38:59,145 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 20:38:59,157 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 20:38:59,157 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:38:59" (1/1) ... [2024-11-13 20:38:59,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 20:38:59,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:38:59,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 37 states and 57 transitions. [2024-11-13 20:38:59,225 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2024-11-13 20:38:59,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-13 20:38:59,228 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:38:59,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:38:59,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:38:59,484 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 20:38:59,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:38:59,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 36 states and 51 transitions. [2024-11-13 20:38:59,608 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 51 transitions. [2024-11-13 20:38:59,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 20:38:59,609 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:38:59,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:38:59,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:38:59,870 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 20:39:00,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:39:00,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 33 states and 48 transitions. [2024-11-13 20:39:00,013 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 48 transitions. [2024-11-13 20:39:00,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-13 20:39:00,013 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:39:00,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:39:00,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:39:00,243 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 20:39:00,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:39:00,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 39 states and 52 transitions. [2024-11-13 20:39:00,673 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 52 transitions. [2024-11-13 20:39:00,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-13 20:39:00,674 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:39:00,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:39:00,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:39:01,867 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 20:39:02,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:39:02,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 41 states and 57 transitions. [2024-11-13 20:39:02,420 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 57 transitions. [2024-11-13 20:39:02,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-13 20:39:02,422 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:39:02,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:39:02,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:39:02,496 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 20:39:02,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:39:02,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 42 states and 58 transitions. [2024-11-13 20:39:02,871 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 58 transitions. [2024-11-13 20:39:02,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-13 20:39:02,871 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:39:02,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:39:03,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:39:04,545 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 20:39:05,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:39:05,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 32 states and 44 transitions. [2024-11-13 20:39:05,100 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 44 transitions. [2024-11-13 20:39:05,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-13 20:39:05,100 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:39:05,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:39:05,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:39:05,230 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 20:39:05,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:39:05,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 33 states and 42 transitions. [2024-11-13 20:39:05,645 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 42 transitions. [2024-11-13 20:39:05,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-13 20:39:05,645 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:39:05,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:39:05,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:39:05,843 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 20:39:07,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:39:07,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 38 states and 52 transitions. [2024-11-13 20:39:07,066 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 52 transitions. [2024-11-13 20:39:07,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-13 20:39:07,067 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:39:07,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:39:07,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:39:08,020 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 20:39:12,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:39:12,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 51 states and 82 transitions. [2024-11-13 20:39:12,055 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 82 transitions. [2024-11-13 20:39:12,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-13 20:39:12,057 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:39:12,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:39:12,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:39:13,682 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 20:39:18,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:39:18,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 56 states and 100 transitions. [2024-11-13 20:39:18,782 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 100 transitions. [2024-11-13 20:39:18,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-13 20:39:18,782 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:39:18,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:39:18,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:39:20,279 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 20:39:21,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:39:21,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 57 states and 105 transitions. [2024-11-13 20:39:21,698 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 105 transitions. [2024-11-13 20:39:21,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-13 20:39:21,698 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:39:21,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:39:21,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:39:22,238 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 20:39:26,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:39:26,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 66 states and 118 transitions. [2024-11-13 20:39:26,810 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 118 transitions. [2024-11-13 20:39:26,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-13 20:39:26,811 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:39:26,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:39:26,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:39:27,838 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 20:39:33,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:39:33,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 69 states and 129 transitions. [2024-11-13 20:39:33,488 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 129 transitions. [2024-11-13 20:39:33,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-13 20:39:33,488 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:39:33,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:39:33,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:39:36,283 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 20:39:47,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:39:47,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 83 states and 169 transitions. [2024-11-13 20:39:47,471 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 169 transitions. [2024-11-13 20:39:47,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-13 20:39:47,471 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:39:47,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:39:47,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:39:50,424 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 20:39:59,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:39:59,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 94 states and 203 transitions. [2024-11-13 20:39:59,683 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 203 transitions. [2024-11-13 20:39:59,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-13 20:39:59,684 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:39:59,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:39:59,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:40:02,324 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 20:40:06,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:40:06,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 96 states and 215 transitions. [2024-11-13 20:40:06,027 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 215 transitions. [2024-11-13 20:40:06,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-13 20:40:06,027 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:40:06,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:40:06,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:40:06,399 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-13 20:40:07,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:40:07,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 97 states and 219 transitions. [2024-11-13 20:40:07,604 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 219 transitions. [2024-11-13 20:40:07,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-13 20:40:07,605 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:40:07,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:40:07,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:40:08,104 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 20:40:10,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:40:10,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 99 states and 221 transitions. [2024-11-13 20:40:10,115 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 221 transitions. [2024-11-13 20:40:10,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-13 20:40:10,116 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:40:10,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:40:10,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:40:13,940 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 20:40:23,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:40:23,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 87 states and 208 transitions. [2024-11-13 20:40:23,977 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 208 transitions. [2024-11-13 20:40:23,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-13 20:40:23,978 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:40:23,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:40:24,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:40:29,158 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 20:40:45,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:40:45,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 95 states and 252 transitions. [2024-11-13 20:40:45,963 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 252 transitions. [2024-11-13 20:40:45,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-13 20:40:45,963 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:40:45,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:40:45,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:40:50,642 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 20:41:00,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:41:00,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 100 states and 280 transitions. [2024-11-13 20:41:00,171 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 280 transitions. [2024-11-13 20:41:00,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-13 20:41:00,172 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:41:00,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:41:00,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:41:05,397 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 20:41:13,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:41:13,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 103 states and 299 transitions. [2024-11-13 20:41:13,709 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 299 transitions. [2024-11-13 20:41:13,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-13 20:41:13,710 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:41:13,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:41:13,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:41:16,530 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 20:41:33,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:41:33,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 111 states and 338 transitions. [2024-11-13 20:41:33,165 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 338 transitions. [2024-11-13 20:41:33,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-13 20:41:33,166 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:41:33,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:41:33,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 20:41:38,202 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 20:41:59,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 20:41:59,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 124 states and 376 transitions. [2024-11-13 20:41:59,548 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 376 transitions. [2024-11-13 20:41:59,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-13 20:41:59,548 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 20:41:59,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 20:41:59,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:41:59,581 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 20:41:59,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:41:59,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:41:59,958 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 20:42:00,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 20:42:00,050 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 25 iterations. [2024-11-13 20:42:00,101 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 08:42:00 ImpRootNode [2024-11-13 20:42:00,101 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 20:42:00,102 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 20:42:00,102 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 20:42:00,102 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 20:42:00,103 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 08:38:59" (3/4) ... [2024-11-13 20:42:00,104 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-13 20:42:00,161 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59daefaf-4c38-46d6-bf9d-75b26a3f224a/bin/ukojak-verify-EEHR8qb7sm/witness.graphml [2024-11-13 20:42:00,161 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 20:42:00,162 INFO L158 Benchmark]: Toolchain (without parser) took 182175.95ms. Allocated memory was 117.4MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 91.3MB in the beginning and 920.3MB in the end (delta: -828.9MB). Peak memory consumption was 349.9MB. Max. memory is 16.1GB. [2024-11-13 20:42:00,163 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 83.9MB. Free memory is still 41.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:42:00,163 INFO L158 Benchmark]: CACSL2BoogieTranslator took 447.80ms. Allocated memory is still 117.4MB. Free memory was 90.9MB in the beginning and 73.6MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 20:42:00,164 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.35ms. Allocated memory is still 117.4MB. Free memory was 73.6MB in the beginning and 71.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:42:00,165 INFO L158 Benchmark]: Boogie Preprocessor took 44.22ms. Allocated memory is still 117.4MB. Free memory was 71.8MB in the beginning and 70.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:42:00,165 INFO L158 Benchmark]: RCFGBuilder took 597.45ms. Allocated memory is still 117.4MB. Free memory was 70.6MB in the beginning and 50.7MB in the end (delta: 19.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 20:42:00,165 INFO L158 Benchmark]: CodeCheck took 180956.60ms. Allocated memory was 117.4MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 50.7MB in the beginning and 920.8MB in the end (delta: -870.1MB). Peak memory consumption was 308.0MB. Max. memory is 16.1GB. [2024-11-13 20:42:00,166 INFO L158 Benchmark]: Witness Printer took 59.09ms. Allocated memory is still 1.3GB. Free memory was 920.8MB in the beginning and 920.3MB in the end (delta: 540.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 20:42:00,170 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, 37 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 180.9s, OverallIterations: 25, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4539 SdHoareTripleChecker+Valid, 43.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3160 mSDsluCounter, 3525 SdHoareTripleChecker+Invalid, 40.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3045 mSDsCounter, 1652 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10667 IncrementalHoareTripleChecker+Invalid, 12319 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1652 mSolverCounterUnsat, 480 mSDtfsCounter, 10667 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4905 GetRequests, 4060 SyntacticMatches, 145 SemanticMatches, 700 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259891 ImplicationChecksByTransitivity, 162.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 44.5s InterpolantComputationTime, 420 NumberOfCodeBlocks, 420 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 374 ConstructedInterpolants, 0 QuantifiedInterpolants, 10056 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 24 InterpolantComputations, 7 PerfectInterpolantSequences, 17/99 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: 993]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L1005] SLL* null = malloc(sizeof(SLL)); [L1006] null->colour = BLACK [L1007] null->next = ((void*)0) [L1009] SLL* list = malloc(sizeof(SLL)); [L1010] list->next = null [L1011] list->colour = BLACK [L1013] SLL* end = list; VAL [end={3:0}, list={3:0}, null={2563:0}] [L1016] COND TRUE __VERIFIER_nondet_int() [L1019] end->next = malloc(sizeof(SLL)) [L1020] EXPR end->next [L1020] end = end->next [L1021] end->next = null [L1023] COND FALSE !(__VERIFIER_nondet_int()) [L1029] end->colour = RED [L1030] end->next = malloc(sizeof(SLL)) [L1031] EXPR end->next [L1031] end = end->next [L1032] end->next = null [L1033] end->colour = BLACK VAL [end={2564:0}, list={3:0}, null={2563:0}] [L1016] COND FALSE !(__VERIFIER_nondet_int()) [L1037] end = null [L1038] end = list VAL [end={3:0}, list={3:0}, null={2563:0}] [L1041] COND FALSE !(!(null != end)) VAL [end={3:0}, list={3:0}, null={2563:0}] [L1042] EXPR end->colour VAL [end={3:0}, list={3:0}, null={2563:0}] [L1042] COND FALSE !(!(BLACK == end->colour)) [L1044] COND TRUE null != end [L1046] EXPR end->colour VAL [end={3:0}, list={3:0}, null={2563:0}] [L1046] COND FALSE !(RED == end->colour) [L1053] EXPR end->next [L1053] end = end->next [L1044] COND TRUE null != end [L1046] EXPR end->colour VAL [end={-1:0}, list={3:0}, null={2563:0}] [L1046] COND TRUE RED == end->colour [L1048] EXPR end->next [L1048] end = end->next [L1049] COND FALSE !(!(null != end)) VAL [end={2564:0}, list={3:0}, null={2563:0}] [L1050] EXPR end->colour VAL [end={2564:0}, list={3:0}, null={2563:0}] [L1050] COND TRUE !(BLACK != end->colour) [L1050] CALL reach_error() [L993] COND FALSE !(0) [L993] __assert_fail ("0", "sll-rb-sentinel-2.c", 13, __extension__ __PRETTY_FUNCTION__) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 83.9MB. Free memory is still 41.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 447.80ms. Allocated memory is still 117.4MB. Free memory was 90.9MB in the beginning and 73.6MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.35ms. Allocated memory is still 117.4MB. Free memory was 73.6MB in the beginning and 71.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 44.22ms. Allocated memory is still 117.4MB. Free memory was 71.8MB in the beginning and 70.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 597.45ms. Allocated memory is still 117.4MB. Free memory was 70.6MB in the beginning and 50.7MB in the end (delta: 19.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * CodeCheck took 180956.60ms. Allocated memory was 117.4MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 50.7MB in the beginning and 920.8MB in the end (delta: -870.1MB). Peak memory consumption was 308.0MB. Max. memory is 16.1GB. * Witness Printer took 59.09ms. Allocated memory is still 1.3GB. Free memory was 920.8MB in the beginning and 920.3MB in the end (delta: 540.5kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-11-13 20:42:00,207 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59daefaf-4c38-46d6-bf9d-75b26a3f224a/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(valid-memcleanup)