./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/termination-15/cstrpbrk_malloc.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b297ee9-57e2-4c08-8f58-3b8dc4d6e822/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b297ee9-57e2-4c08-8f58-3b8dc4d6e822/bin/ukojak-verify-i0I2FZA1j2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b297ee9-57e2-4c08-8f58-3b8dc4d6e822/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b297ee9-57e2-4c08-8f58-3b8dc4d6e822/bin/ukojak-verify-i0I2FZA1j2/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/termination-15/cstrpbrk_malloc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b297ee9-57e2-4c08-8f58-3b8dc4d6e822/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b297ee9-57e2-4c08-8f58-3b8dc4d6e822/bin/ukojak-verify-i0I2FZA1j2 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 8edf581f64d166b4408dcbe4d1c200d90abc56f787561a55f3b270257b320de9 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:54:47,218 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:54:47,338 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b297ee9-57e2-4c08-8f58-3b8dc4d6e822/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf [2023-11-21 18:54:47,350 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:54:47,351 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:54:47,392 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:54:47,394 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:54:47,395 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:54:47,396 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:54:47,401 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:54:47,403 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:54:47,403 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-21 18:54:47,404 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-21 18:54:47,406 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-21 18:54:47,406 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:54:47,407 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:54:47,407 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:54:47,408 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:54:47,408 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:54:47,409 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:54:47,410 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:54:47,411 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:54:47,411 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:54:47,412 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:54:47,412 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:54:47,413 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:54:47,413 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b297ee9-57e2-4c08-8f58-3b8dc4d6e822/bin/ukojak-verify-i0I2FZA1j2/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b297ee9-57e2-4c08-8f58-3b8dc4d6e822/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8edf581f64d166b4408dcbe4d1c200d90abc56f787561a55f3b270257b320de9 [2023-11-21 18:54:47,772 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:54:47,805 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:54:47,808 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:54:47,810 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:54:47,810 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:54:47,812 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b297ee9-57e2-4c08-8f58-3b8dc4d6e822/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/termination-15/cstrpbrk_malloc.i [2023-11-21 18:54:50,855 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:54:51,133 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:54:51,134 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b297ee9-57e2-4c08-8f58-3b8dc4d6e822/sv-benchmarks/c/termination-15/cstrpbrk_malloc.i [2023-11-21 18:54:51,148 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b297ee9-57e2-4c08-8f58-3b8dc4d6e822/bin/ukojak-verify-i0I2FZA1j2/data/b44639217/c1cb1eca950648a7a380b2077d164363/FLAG6317d9479 [2023-11-21 18:54:51,162 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b297ee9-57e2-4c08-8f58-3b8dc4d6e822/bin/ukojak-verify-i0I2FZA1j2/data/b44639217/c1cb1eca950648a7a380b2077d164363 [2023-11-21 18:54:51,165 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:54:51,167 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:54:51,168 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:54:51,169 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:54:51,174 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:54:51,175 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:54:51" (1/1) ... [2023-11-21 18:54:51,176 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@325bc4fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:51, skipping insertion in model container [2023-11-21 18:54:51,176 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:54:51" (1/1) ... [2023-11-21 18:54:51,215 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:54:51,572 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:54:51,585 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:54:51,653 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:54:51,704 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:54:51,704 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:51 WrapperNode [2023-11-21 18:54:51,705 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:54:51,706 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:54:51,706 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:54:51,706 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:54:51,714 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:51" (1/1) ... [2023-11-21 18:54:51,727 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:51" (1/1) ... [2023-11-21 18:54:51,760 INFO L138 Inliner]: procedures = 152, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 82 [2023-11-21 18:54:51,763 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:54:51,764 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:54:51,764 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:54:51,764 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:54:51,774 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:51" (1/1) ... [2023-11-21 18:54:51,775 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:51" (1/1) ... [2023-11-21 18:54:51,785 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:51" (1/1) ... [2023-11-21 18:54:51,785 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:51" (1/1) ... [2023-11-21 18:54:51,792 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:51" (1/1) ... [2023-11-21 18:54:51,795 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:51" (1/1) ... [2023-11-21 18:54:51,797 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:51" (1/1) ... [2023-11-21 18:54:51,798 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:51" (1/1) ... [2023-11-21 18:54:51,801 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:54:51,802 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:54:51,802 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:54:51,802 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:54:51,804 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:51" (1/1) ... [2023-11-21 18:54:51,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:54:51,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b297ee9-57e2-4c08-8f58-3b8dc4d6e822/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:54:51,853 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b297ee9-57e2-4c08-8f58-3b8dc4d6e822/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:54:51,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0b297ee9-57e2-4c08-8f58-3b8dc4d6e822/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:54:51,922 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 18:54:51,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 18:54:51,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 18:54:51,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 18:54:51,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:54:51,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:54:52,068 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:54:52,071 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:54:52,409 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:54:52,476 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:54:52,476 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 18:54:52,481 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:54:52 BoogieIcfgContainer [2023-11-21 18:54:52,482 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:54:52,483 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:54:52,483 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:54:52,494 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:54:52,494 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:54:52" (1/1) ... [2023-11-21 18:54:52,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:54:52,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:52,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 43 states and 48 transitions. [2023-11-21 18:54:52,585 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2023-11-21 18:54:52,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-21 18:54:52,587 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:52,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:52,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:52,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:52,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:52,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 42 states and 47 transitions. [2023-11-21 18:54:52,908 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2023-11-21 18:54:52,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-21 18:54:52,908 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:52,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:52,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:53,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:53,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:53,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 41 states and 46 transitions. [2023-11-21 18:54:53,408 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2023-11-21 18:54:53,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-21 18:54:53,411 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:53,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:53,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:53,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:53,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:53,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 40 states and 45 transitions. [2023-11-21 18:54:53,813 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 45 transitions. [2023-11-21 18:54:53,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-21 18:54:53,814 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:53,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:53,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:54,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:54,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:54,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 39 states and 44 transitions. [2023-11-21 18:54:54,516 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 44 transitions. [2023-11-21 18:54:54,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-21 18:54:54,517 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:54,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:54,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:54,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:54,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:54,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 40 states and 45 transitions. [2023-11-21 18:54:54,850 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 45 transitions. [2023-11-21 18:54:54,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-21 18:54:54,850 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:54,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:54,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:55,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:55,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:55,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 41 states and 47 transitions. [2023-11-21 18:54:55,585 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 47 transitions. [2023-11-21 18:54:55,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 18:54:55,585 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:55,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:55,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:55,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:55,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:55,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 40 states and 46 transitions. [2023-11-21 18:54:55,652 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2023-11-21 18:54:55,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 18:54:55,653 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:55,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:55,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:55,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:55,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:55,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 42 states and 49 transitions. [2023-11-21 18:54:55,845 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2023-11-21 18:54:55,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 18:54:55,846 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:55,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:55,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:56,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:56,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:56,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 46 states and 56 transitions. [2023-11-21 18:54:56,503 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 56 transitions. [2023-11-21 18:54:56,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 18:54:56,503 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:56,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:56,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:56,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:58,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:58,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 50 states and 63 transitions. [2023-11-21 18:54:58,539 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 63 transitions. [2023-11-21 18:54:58,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 18:54:58,540 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:58,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:58,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:58,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:58,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:58,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 55 states and 73 transitions. [2023-11-21 18:54:58,876 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 73 transitions. [2023-11-21 18:54:58,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-21 18:54:58,877 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:58,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:58,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:58,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:58,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:58,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 54 states and 72 transitions. [2023-11-21 18:54:58,940 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 72 transitions. [2023-11-21 18:54:58,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-21 18:54:58,941 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:58,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:58,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:58,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:54:59,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:59,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 53 states and 71 transitions. [2023-11-21 18:54:59,002 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 71 transitions. [2023-11-21 18:54:59,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-21 18:54:59,005 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:59,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:59,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:59,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:55:00,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:55:00,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 59 states and 82 transitions. [2023-11-21 18:55:00,741 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 82 transitions. [2023-11-21 18:55:00,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-21 18:55:00,741 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:55:00,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:55:00,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:55:00,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:55:00,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:55:00,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 58 states and 80 transitions. [2023-11-21 18:55:00,789 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 80 transitions. [2023-11-21 18:55:00,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-21 18:55:00,790 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:55:00,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:55:00,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:55:00,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:55:00,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:55:00,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 57 states and 79 transitions. [2023-11-21 18:55:00,849 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 79 transitions. [2023-11-21 18:55:00,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-21 18:55:00,850 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:55:00,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:55:00,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:55:00,945 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:55:01,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:55:01,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 58 states and 80 transitions. [2023-11-21 18:55:01,327 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 80 transitions. [2023-11-21 18:55:01,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-21 18:55:01,328 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:55:01,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:55:01,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:55:01,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:55:02,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:55:02,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 65 states and 93 transitions. [2023-11-21 18:55:02,256 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 93 transitions. [2023-11-21 18:55:02,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-21 18:55:02,257 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:55:02,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:55:02,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:55:03,262 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:55:06,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:55:06,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 72 states and 108 transitions. [2023-11-21 18:55:06,715 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 108 transitions. [2023-11-21 18:55:06,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-21 18:55:06,716 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:55:06,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:55:06,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:55:06,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:55:08,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:55:08,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 80 states and 123 transitions. [2023-11-21 18:55:08,349 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 123 transitions. [2023-11-21 18:55:08,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-21 18:55:08,350 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:55:08,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:55:08,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:55:09,049 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:55:12,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:55:12,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 86 states and 137 transitions. [2023-11-21 18:55:12,883 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 137 transitions. [2023-11-21 18:55:12,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-21 18:55:12,884 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:55:12,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:55:12,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:55:13,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:55:17,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:55:17,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 95 states and 153 transitions. [2023-11-21 18:55:17,991 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 153 transitions. [2023-11-21 18:55:17,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-21 18:55:17,992 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:55:17,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:55:18,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:55:18,029 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:55:21,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:55:21,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 100 states and 164 transitions. [2023-11-21 18:55:21,118 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 164 transitions. [2023-11-21 18:55:21,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-21 18:55:21,119 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:55:21,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:55:21,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:55:22,359 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:55:32,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:55:32,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 110 states and 187 transitions. [2023-11-21 18:55:32,848 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 187 transitions. [2023-11-21 18:55:32,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-21 18:55:32,849 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:55:32,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:55:32,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:55:32,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:55:37,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:55:37,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 116 states and 201 transitions. [2023-11-21 18:55:37,176 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 201 transitions. [2023-11-21 18:55:37,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-21 18:55:37,176 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:55:37,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:55:37,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:55:37,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.