./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 d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebdd685b-c1e9-4926-8652-d100cc16f2bc/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebdd685b-c1e9-4926-8652-d100cc16f2bc/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_ebdd685b-c1e9-4926-8652-d100cc16f2bc/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebdd685b-c1e9-4926-8652-d100cc16f2bc/bin/ukojak-verify-CZk0znPC7b/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_ebdd685b-c1e9-4926-8652-d100cc16f2bc/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_ebdd685b-c1e9-4926-8652-d100cc16f2bc/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 503a3e49b44041609ec1bba765b53912c88abb90ff278e61e68e863904faf4bb --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 00:48:57,491 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 00:48:57,550 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebdd685b-c1e9-4926-8652-d100cc16f2bc/bin/ukojak-verify-CZk0znPC7b/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2024-12-06 00:48:57,555 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 00:48:57,555 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 00:48:57,575 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 00:48:57,576 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 00:48:57,577 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 00:48:57,577 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 00:48:57,577 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 00:48:57,577 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 00:48:57,577 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 00:48:57,577 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 00:48:57,577 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 00:48:57,577 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 00:48:57,577 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-12-06 00:48:57,578 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-12-06 00:48:57,578 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 00:48:57,578 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 00:48:57,578 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 00:48:57,578 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 00:48:57,578 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 00:48:57,578 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 00:48:57,578 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 00:48:57,578 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 00:48:57,579 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 00:48:57,579 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 00:48:57,579 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 00:48:57,579 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 00:48:57,579 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 00:48:57,579 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 00:48:57,579 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 00:48:57,579 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 00:48:57,579 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_ebdd685b-c1e9-4926-8652-d100cc16f2bc/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 -> 503a3e49b44041609ec1bba765b53912c88abb90ff278e61e68e863904faf4bb [2024-12-06 00:48:57,816 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 00:48:57,825 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 00:48:57,827 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 00:48:57,828 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 00:48:57,829 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 00:48:57,830 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebdd685b-c1e9-4926-8652-d100cc16f2bc/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/forester-heap/sll-rb-sentinel-2.i [2024-12-06 00:49:00,553 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebdd685b-c1e9-4926-8652-d100cc16f2bc/bin/ukojak-verify-CZk0znPC7b/data/357c583bc/996711d989054d42aad62a384c4edf96/FLAG209eb8b96 [2024-12-06 00:49:00,786 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 00:49:00,787 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebdd685b-c1e9-4926-8652-d100cc16f2bc/sv-benchmarks/c/forester-heap/sll-rb-sentinel-2.i [2024-12-06 00:49:00,798 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebdd685b-c1e9-4926-8652-d100cc16f2bc/bin/ukojak-verify-CZk0znPC7b/data/357c583bc/996711d989054d42aad62a384c4edf96/FLAG209eb8b96 [2024-12-06 00:49:01,121 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebdd685b-c1e9-4926-8652-d100cc16f2bc/bin/ukojak-verify-CZk0znPC7b/data/357c583bc/996711d989054d42aad62a384c4edf96 [2024-12-06 00:49:01,122 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 00:49:01,124 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 00:49:01,125 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 00:49:01,125 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 00:49:01,128 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 00:49:01,128 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:49:01" (1/1) ... [2024-12-06 00:49:01,129 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@325b7963 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:49:01, skipping insertion in model container [2024-12-06 00:49:01,129 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:49:01" (1/1) ... [2024-12-06 00:49:01,154 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 00:49:01,349 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 00:49:01,356 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 00:49:01,394 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 00:49:01,412 INFO L204 MainTranslator]: Completed translation [2024-12-06 00:49:01,413 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:49:01 WrapperNode [2024-12-06 00:49:01,413 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 00:49:01,414 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 00:49:01,414 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 00:49:01,414 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 00:49:01,418 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:49:01" (1/1) ... [2024-12-06 00:49:01,427 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:49:01" (1/1) ... [2024-12-06 00:49:01,442 INFO L138 Inliner]: procedures = 119, calls = 40, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 124 [2024-12-06 00:49:01,442 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 00:49:01,443 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 00:49:01,443 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 00:49:01,443 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 00:49:01,448 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:49:01" (1/1) ... [2024-12-06 00:49:01,448 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:49:01" (1/1) ... [2024-12-06 00:49:01,451 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:49:01" (1/1) ... [2024-12-06 00:49:01,451 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:49:01" (1/1) ... [2024-12-06 00:49:01,458 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:49:01" (1/1) ... [2024-12-06 00:49:01,459 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:49:01" (1/1) ... [2024-12-06 00:49:01,463 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:49:01" (1/1) ... [2024-12-06 00:49:01,465 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:49:01" (1/1) ... [2024-12-06 00:49:01,465 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:49:01" (1/1) ... [2024-12-06 00:49:01,468 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 00:49:01,468 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 00:49:01,468 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 00:49:01,468 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 00:49:01,469 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:49:01" (1/1) ... [2024-12-06 00:49:01,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 00:49:01,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebdd685b-c1e9-4926-8652-d100cc16f2bc/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 00:49:01,497 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebdd685b-c1e9-4926-8652-d100cc16f2bc/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 00:49:01,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebdd685b-c1e9-4926-8652-d100cc16f2bc/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 00:49:01,517 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-06 00:49:01,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-06 00:49:01,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-06 00:49:01,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 00:49:01,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-12-06 00:49:01,517 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-12-06 00:49:01,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-06 00:49:01,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 00:49:01,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 00:49:01,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 00:49:01,603 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 00:49:01,604 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 00:49:01,771 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-12-06 00:49:01,772 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 00:49:01,830 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 00:49:01,830 INFO L312 CfgBuilder]: Removed 7 assume(true) statements. [2024-12-06 00:49:01,831 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:49:01 BoogieIcfgContainer [2024-12-06 00:49:01,831 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 00:49:01,832 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 00:49:01,832 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 00:49:01,841 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 00:49:01,841 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:49:01" (1/1) ... [2024-12-06 00:49:01,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 00:49:01,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:49:01,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 37 states and 57 transitions. [2024-12-06 00:49:01,887 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2024-12-06 00:49:01,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-06 00:49:01,889 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:49:01,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:49:01,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:49:02,030 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 00:49:02,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:49:02,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 36 states and 51 transitions. [2024-12-06 00:49:02,074 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 51 transitions. [2024-12-06 00:49:02,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-06 00:49:02,075 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:49:02,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:49:02,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:49:02,236 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 00:49:02,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:49:02,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 33 states and 48 transitions. [2024-12-06 00:49:02,332 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 48 transitions. [2024-12-06 00:49:02,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-06 00:49:02,332 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:49:02,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:49:02,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:49:02,489 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 00:49:02,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:49:02,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 39 states and 52 transitions. [2024-12-06 00:49:02,819 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 52 transitions. [2024-12-06 00:49:02,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-06 00:49:02,819 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:49:02,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:49:02,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:49:03,630 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:49:04,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:49:04,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 41 states and 57 transitions. [2024-12-06 00:49:04,062 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 57 transitions. [2024-12-06 00:49:04,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-06 00:49:04,064 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:49:04,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:49:04,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:49:04,127 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 00:49:04,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:49:04,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 42 states and 58 transitions. [2024-12-06 00:49:04,400 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 58 transitions. [2024-12-06 00:49:04,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-06 00:49:04,401 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:49:04,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:49:04,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:49:05,588 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:49:06,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:49:06,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 32 states and 44 transitions. [2024-12-06 00:49:06,029 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 44 transitions. [2024-12-06 00:49:06,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-06 00:49:06,030 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:49:06,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:49:06,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:49:06,125 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 00:49:06,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:49:06,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 33 states and 42 transitions. [2024-12-06 00:49:06,409 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 42 transitions. [2024-12-06 00:49:06,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-12-06 00:49:06,410 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:49:06,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:49:06,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:49:06,580 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-06 00:49:07,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:49:07,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 38 states and 52 transitions. [2024-12-06 00:49:07,341 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 52 transitions. [2024-12-06 00:49:07,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-12-06 00:49:07,342 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:49:07,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:49:07,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:49:08,021 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:49:10,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:49:10,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 51 states and 82 transitions. [2024-12-06 00:49:10,711 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 82 transitions. [2024-12-06 00:49:10,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-12-06 00:49:10,712 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:49:10,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:49:10,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:49:10,936 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:49:13,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:49:13,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 60 states and 95 transitions. [2024-12-06 00:49:13,183 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 95 transitions. [2024-12-06 00:49:13,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-12-06 00:49:13,183 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:49:13,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:49:13,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:49:14,339 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:49:18,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:49:18,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 71 states and 116 transitions. [2024-12-06 00:49:18,652 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 116 transitions. [2024-12-06 00:49:18,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-12-06 00:49:18,653 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:49:18,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:49:18,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:49:19,861 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:49:21,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:49:21,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 72 states and 121 transitions. [2024-12-06 00:49:21,086 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 121 transitions. [2024-12-06 00:49:21,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-12-06 00:49:21,086 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:49:21,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:49:21,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:49:21,863 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-06 00:49:26,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:49:26,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 69 states and 123 transitions. [2024-12-06 00:49:26,180 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 123 transitions. [2024-12-06 00:49:26,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-12-06 00:49:26,180 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:49:26,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:49:26,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:49:28,364 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:49:36,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:49:36,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 83 states and 164 transitions. [2024-12-06 00:49:36,294 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 164 transitions. [2024-12-06 00:49:36,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-12-06 00:49:36,295 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:49:36,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:49:36,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:49:38,803 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:49:46,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:49:46,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 94 states and 192 transitions. [2024-12-06 00:49:46,579 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 192 transitions. [2024-12-06 00:49:46,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-12-06 00:49:46,580 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:49:46,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:49:46,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:49:46,924 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-12-06 00:49:48,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:49:48,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 96 states and 194 transitions. [2024-12-06 00:49:48,279 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 194 transitions. [2024-12-06 00:49:48,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-12-06 00:49:48,279 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:49:48,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:49:48,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:49:50,824 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:50:02,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:50:02,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 86 states and 196 transitions. [2024-12-06 00:50:02,442 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 196 transitions. [2024-12-06 00:50:02,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-12-06 00:50:02,443 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:50:02,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:50:02,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:50:03,943 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:50:15,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:50:15,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 95 states and 257 transitions. [2024-12-06 00:50:15,097 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 257 transitions. [2024-12-06 00:50:15,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-12-06 00:50:15,097 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:50:15,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:50:15,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:50:18,980 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:50:30,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:50:30,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 100 states and 286 transitions. [2024-12-06 00:50:30,727 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 286 transitions. [2024-12-06 00:50:30,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-12-06 00:50:30,728 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:50:30,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:50:30,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:50:31,124 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:50:32,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:50:32,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 102 states and 299 transitions. [2024-12-06 00:50:32,923 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 299 transitions. [2024-12-06 00:50:32,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-12-06 00:50:32,923 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:50:32,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:50:32,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:50:37,680 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:50:42,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:50:42,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 103 states and 304 transitions. [2024-12-06 00:50:42,729 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 304 transitions. [2024-12-06 00:50:42,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-12-06 00:50:42,730 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:50:42,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:50:42,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:50:49,571 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:51:16,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:51:16,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 112 states and 352 transitions. [2024-12-06 00:51:16,410 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 352 transitions. [2024-12-06 00:51:16,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-12-06 00:51:16,411 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:51:16,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:51:16,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:51:20,547 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:51:41,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:51:41,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 127 states and 408 transitions. [2024-12-06 00:51:41,294 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 408 transitions. [2024-12-06 00:51:41,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-12-06 00:51:41,295 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:51:41,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:51:41,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:51:44,241 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:52:01,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:52:01,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 138 states and 436 transitions. [2024-12-06 00:52:01,906 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 436 transitions. [2024-12-06 00:52:01,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-12-06 00:52:01,906 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:52:01,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:52:01,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:52:06,269 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:52:31,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:52:31,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 152 states and 488 transitions. [2024-12-06 00:52:31,241 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 488 transitions. [2024-12-06 00:52:31,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-12-06 00:52:31,242 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:52:31,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:52:31,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:52:32,426 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:52:40,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:52:40,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 157 states and 522 transitions. [2024-12-06 00:52:40,584 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 522 transitions. [2024-12-06 00:52:40,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-12-06 00:52:40,585 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:52:40,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:52:40,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:52:48,325 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:53:04,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:53:04,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 162 states and 552 transitions. [2024-12-06 00:53:04,731 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 552 transitions. [2024-12-06 00:53:04,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-12-06 00:53:04,731 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:53:04,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:53:04,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:53:12,201 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:53:24,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:53:24,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 164 states and 559 transitions. [2024-12-06 00:53:24,297 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 559 transitions. [2024-12-06 00:53:24,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-12-06 00:53:24,297 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:53:24,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:53:24,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:53:34,363 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:53:48,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:53:48,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 167 states and 570 transitions. [2024-12-06 00:53:48,217 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 570 transitions. [2024-12-06 00:53:48,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-12-06 00:53:48,217 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:53:48,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:53:48,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:53:56,118 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:54:24,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:54:24,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 173 states and 610 transitions. [2024-12-06 00:54:24,581 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 610 transitions. [2024-12-06 00:54:24,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-12-06 00:54:24,582 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:54:24,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:54:24,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:54:25,992 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:54:31,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:54:31,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 175 states and 622 transitions. [2024-12-06 00:54:31,040 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 622 transitions. [2024-12-06 00:54:31,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-12-06 00:54:31,040 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:54:31,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:54:31,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 00:54:31,065 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 00:54:31,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 00:54:31,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 00:54:31,216 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 00:54:31,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 00:54:31,307 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 32 iterations. [2024-12-06 00:54:31,339 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 12:54:31 ImpRootNode [2024-12-06 00:54:31,339 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 00:54:31,339 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 00:54:31,339 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 00:54:31,339 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 00:54:31,340 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:49:01" (3/4) ... [2024-12-06 00:54:31,341 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-06 00:54:31,375 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 17. [2024-12-06 00:54:31,427 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebdd685b-c1e9-4926-8652-d100cc16f2bc/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 00:54:31,428 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebdd685b-c1e9-4926-8652-d100cc16f2bc/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 00:54:31,428 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 00:54:31,429 INFO L158 Benchmark]: Toolchain (without parser) took 330305.00ms. Allocated memory was 142.6MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 116.0MB in the beginning and 666.3MB in the end (delta: -550.3MB). Peak memory consumption was 507.4MB. Max. memory is 16.1GB. [2024-12-06 00:54:31,429 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 83.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 00:54:31,429 INFO L158 Benchmark]: CACSL2BoogieTranslator took 288.59ms. Allocated memory is still 142.6MB. Free memory was 115.8MB in the beginning and 98.5MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 00:54:31,430 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.76ms. Allocated memory is still 142.6MB. Free memory was 98.5MB in the beginning and 97.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 00:54:31,430 INFO L158 Benchmark]: Boogie Preprocessor took 24.82ms. Allocated memory is still 142.6MB. Free memory was 96.8MB in the beginning and 95.4MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 00:54:31,430 INFO L158 Benchmark]: RCFGBuilder took 362.64ms. Allocated memory is still 142.6MB. Free memory was 95.4MB in the beginning and 74.6MB in the end (delta: 20.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 00:54:31,431 INFO L158 Benchmark]: CodeCheck took 329507.22ms. Allocated memory was 142.6MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 74.4MB in the beginning and 671.1MB in the end (delta: -596.6MB). Peak memory consumption was 457.0MB. Max. memory is 16.1GB. [2024-12-06 00:54:31,431 INFO L158 Benchmark]: Witness Printer took 88.80ms. Allocated memory is still 1.2GB. Free memory was 671.1MB in the beginning and 666.3MB in the end (delta: 4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 00:54:31,433 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: 329.5s, OverallIterations: 32, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8117 SdHoareTripleChecker+Valid, 78.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6299 mSDsluCounter, 7045 SdHoareTripleChecker+Invalid, 72.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6411 mSDsCounter, 3490 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 24339 IncrementalHoareTripleChecker+Invalid, 27829 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3490 mSolverCounterUnsat, 634 mSDtfsCounter, 24339 mSolverCounterSat, 0.5s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7492 GetRequests, 6218 SyntacticMatches, 238 SemanticMatches, 1036 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 581537 ImplicationChecksByTransitivity, 305.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 78.0s InterpolantComputationTime, 580 NumberOfCodeBlocks, 580 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 527 ConstructedInterpolants, 0 QuantifiedInterpolants, 22025 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 31 InterpolantComputations, 7 PerfectInterpolantSequences, 16/175 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: 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={24478:0}, list={24478:0}, null={-2:0}] [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={-1:0}, list={24478:0}, null={-2:0}] [L1016] COND FALSE !(__VERIFIER_nondet_int()) [L1037] end = null [L1038] end = list VAL [end={24478:0}, list={24478:0}, null={-2:0}] [L1041] COND FALSE !(!(null != end)) VAL [end={24478:0}, list={24478:0}, null={-2:0}] [L1041] COND FALSE !(0) VAL [end={24478:0}, list={24478:0}, null={-2:0}] [L1042] EXPR end->colour VAL [end={24478:0}, list={24478:0}, null={-2:0}] [L1042] COND FALSE !(!(BLACK == end->colour)) [L1042] COND FALSE !(0) VAL [end={24478:0}, list={24478:0}, null={-2:0}] [L1044] COND TRUE null != end [L1046] EXPR end->colour VAL [end={24478:0}, list={24478:0}, null={-2:0}] [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={-3:0}, list={24478:0}, null={-2:0}] [L1046] COND TRUE RED == end->colour [L1048] EXPR end->next [L1048] end = end->next [L1049] COND FALSE !(!(null != end)) VAL [end={-1:0}, list={24478:0}, null={-2:0}] [L1049] COND FALSE !(0) VAL [end={-1:0}, list={24478:0}, null={-2:0}] [L1050] EXPR end->colour VAL [end={-1:0}, list={24478:0}, null={-2:0}] [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 0.28ms. Allocated memory is still 142.6MB. Free memory is still 83.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 288.59ms. Allocated memory is still 142.6MB. Free memory was 115.8MB in the beginning and 98.5MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.76ms. Allocated memory is still 142.6MB. Free memory was 98.5MB in the beginning and 97.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.82ms. Allocated memory is still 142.6MB. Free memory was 96.8MB in the beginning and 95.4MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 362.64ms. Allocated memory is still 142.6MB. Free memory was 95.4MB in the beginning and 74.6MB in the end (delta: 20.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 329507.22ms. Allocated memory was 142.6MB in the beginning and 1.2GB in the end (delta: 1.1GB). Free memory was 74.4MB in the beginning and 671.1MB in the end (delta: -596.6MB). Peak memory consumption was 457.0MB. Max. memory is 16.1GB. * Witness Printer took 88.80ms. Allocated memory is still 1.2GB. Free memory was 671.1MB in the beginning and 666.3MB in the end (delta: 4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-12-06 00:54:31,452 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ebdd685b-c1e9-4926-8652-d100cc16f2bc/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)