./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/openbsd_cstrcat-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9bd2c7ff 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_3e9515b6-73ec-495b-8f4f-8129aafa2861/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e9515b6-73ec-495b-8f4f-8129aafa2861/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e9515b6-73ec-495b-8f4f-8129aafa2861/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e9515b6-73ec-495b-8f4f-8129aafa2861/bin/ukojak-verify-G8NBE6pJGL/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cstrcat-alloca-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e9515b6-73ec-495b-8f4f-8129aafa2861/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e9515b6-73ec-495b-8f4f-8129aafa2861/bin/ukojak-verify-G8NBE6pJGL --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 32bit --witnessprinter.graph.data.programhash 8688e0efa9d37c2205606fbd307da42d83b0f0e2936dd15336b8b67e136d86b0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:34:49,107 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:34:49,234 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e9515b6-73ec-495b-8f4f-8129aafa2861/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2023-11-19 03:34:49,239 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:34:49,241 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:34:49,280 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:34:49,282 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:34:49,283 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:34:49,284 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:34:49,289 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:34:49,290 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:34:49,290 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:34:49,291 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:34:49,292 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 03:34:49,293 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 03:34:49,293 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 03:34:49,294 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:34:49,294 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 03:34:49,295 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:34:49,295 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:34:49,295 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:34:49,296 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:34:49,296 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:34:49,297 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:34:49,298 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:34:49,298 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:34:49,298 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:34:49,299 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:34:49,299 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:34:49,300 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_3e9515b6-73ec-495b-8f4f-8129aafa2861/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e9515b6-73ec-495b-8f4f-8129aafa2861/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8688e0efa9d37c2205606fbd307da42d83b0f0e2936dd15336b8b67e136d86b0 [2023-11-19 03:34:49,685 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:34:49,730 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:34:49,732 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:34:49,734 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:34:49,735 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:34:49,736 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e9515b6-73ec-495b-8f4f-8129aafa2861/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/array-memsafety/openbsd_cstrcat-alloca-2.i [2023-11-19 03:34:52,804 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:34:53,115 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:34:53,117 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e9515b6-73ec-495b-8f4f-8129aafa2861/sv-benchmarks/c/array-memsafety/openbsd_cstrcat-alloca-2.i [2023-11-19 03:34:53,131 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e9515b6-73ec-495b-8f4f-8129aafa2861/bin/ukojak-verify-G8NBE6pJGL/data/3ad71a255/5d6ede5c44f04de9894613e9e4f3c8d3/FLAG6af7bf9e2 [2023-11-19 03:34:53,165 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e9515b6-73ec-495b-8f4f-8129aafa2861/bin/ukojak-verify-G8NBE6pJGL/data/3ad71a255/5d6ede5c44f04de9894613e9e4f3c8d3 [2023-11-19 03:34:53,168 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:34:53,170 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:34:53,171 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:34:53,172 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:34:53,177 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:34:53,177 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:34:53" (1/1) ... [2023-11-19 03:34:53,179 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b3cb17a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:34:53, skipping insertion in model container [2023-11-19 03:34:53,179 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:34:53" (1/1) ... [2023-11-19 03:34:53,248 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:34:53,620 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:34:53,634 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:34:53,703 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:34:53,734 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:34:53,735 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:34:53 WrapperNode [2023-11-19 03:34:53,735 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:34:53,736 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:34:53,736 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:34:53,737 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:34:53,744 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:34:53" (1/1) ... [2023-11-19 03:34:53,757 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:34:53" (1/1) ... [2023-11-19 03:34:53,791 INFO L138 Inliner]: procedures = 117, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 100 [2023-11-19 03:34:53,791 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:34:53,792 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:34:53,793 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:34:53,793 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:34:53,803 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:34:53" (1/1) ... [2023-11-19 03:34:53,803 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:34:53" (1/1) ... [2023-11-19 03:34:53,820 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:34:53" (1/1) ... [2023-11-19 03:34:53,820 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:34:53" (1/1) ... [2023-11-19 03:34:53,826 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:34:53" (1/1) ... [2023-11-19 03:34:53,830 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:34:53" (1/1) ... [2023-11-19 03:34:53,831 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:34:53" (1/1) ... [2023-11-19 03:34:53,844 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:34:53" (1/1) ... [2023-11-19 03:34:53,847 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:34:53,848 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:34:53,848 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:34:53,848 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:34:53,849 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:34:53" (1/1) ... [2023-11-19 03:34:53,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:34:53,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e9515b6-73ec-495b-8f4f-8129aafa2861/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:34:53,888 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e9515b6-73ec-495b-8f4f-8129aafa2861/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:34:53,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e9515b6-73ec-495b-8f4f-8129aafa2861/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:34:53,927 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 03:34:53,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 03:34:53,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 03:34:53,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 03:34:53,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:34:53,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:34:54,046 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:34:54,050 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:34:54,336 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:34:54,403 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:34:54,403 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-19 03:34:54,408 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:34:54 BoogieIcfgContainer [2023-11-19 03:34:54,408 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:34:54,409 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:34:54,409 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:34:54,419 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:34:54,419 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:34:54" (1/1) ... [2023-11-19 03:34:54,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:34:54,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:34:54,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 32 states and 38 transitions. [2023-11-19 03:34:54,480 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2023-11-19 03:34:54,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 03:34:54,481 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:34:54,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:34:54,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:34:54,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:34:54,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:34:54,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 33 states and 39 transitions. [2023-11-19 03:34:54,705 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2023-11-19 03:34:54,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 03:34:54,705 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:34:54,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:34:54,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:34:54,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:34:54,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:34:54,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 32 states and 38 transitions. [2023-11-19 03:34:54,987 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2023-11-19 03:34:54,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 03:34:54,988 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:34:54,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:34:55,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:34:55,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:34:56,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:34:56,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 34 states and 42 transitions. [2023-11-19 03:34:56,034 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2023-11-19 03:34:56,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 03:34:56,037 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:34:56,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:34:56,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:34:56,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:34:56,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:34:56,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 36 states and 46 transitions. [2023-11-19 03:34:56,437 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 46 transitions. [2023-11-19 03:34:56,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 03:34:56,440 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:34:56,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:34:56,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:34:57,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:34:58,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:34:58,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 38 states and 51 transitions. [2023-11-19 03:34:58,576 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 51 transitions. [2023-11-19 03:34:58,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 03:34:58,577 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:34:58,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:34:58,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:34:59,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:00,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:00,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 40 states and 58 transitions. [2023-11-19 03:35:00,602 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 58 transitions. [2023-11-19 03:35:00,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 03:35:00,602 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:00,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:00,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:00,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:01,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:01,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 41 states and 60 transitions. [2023-11-19 03:35:01,430 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 60 transitions. [2023-11-19 03:35:01,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 03:35:01,431 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:01,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:01,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:01,805 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:03,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:03,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 44 states and 69 transitions. [2023-11-19 03:35:03,284 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 69 transitions. [2023-11-19 03:35:03,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 03:35:03,285 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:03,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:03,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:03,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:03,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:03,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 46 states and 72 transitions. [2023-11-19 03:35:03,734 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 72 transitions. [2023-11-19 03:35:03,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 03:35:03,735 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:03,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:03,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:04,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:07,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:07,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 49 states and 80 transitions. [2023-11-19 03:35:07,749 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 80 transitions. [2023-11-19 03:35:07,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 03:35:07,750 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:07,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:07,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:08,678 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:11,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:11,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 50 states and 87 transitions. [2023-11-19 03:35:11,821 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 87 transitions. [2023-11-19 03:35:11,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 03:35:11,822 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:11,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:11,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:11,887 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 03:35:13,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:13,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 51 states and 90 transitions. [2023-11-19 03:35:13,064 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 90 transitions. [2023-11-19 03:35:13,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 03:35:13,065 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:13,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:13,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:14,058 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:17,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:17,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 54 states and 102 transitions. [2023-11-19 03:35:17,897 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 102 transitions. [2023-11-19 03:35:17,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 03:35:17,898 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:17,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:17,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:18,734 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:21,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:21,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 57 states and 113 transitions. [2023-11-19 03:35:21,136 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 113 transitions. [2023-11-19 03:35:21,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 03:35:21,137 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:21,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:21,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:21,427 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 03:35:22,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:22,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 59 states and 118 transitions. [2023-11-19 03:35:22,958 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 118 transitions. [2023-11-19 03:35:22,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 03:35:22,959 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:22,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:22,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:23,223 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:24,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:24,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 61 states and 123 transitions. [2023-11-19 03:35:24,752 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 123 transitions. [2023-11-19 03:35:24,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 03:35:24,753 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:24,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:24,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:24,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:25,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:25,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 62 states and 124 transitions. [2023-11-19 03:35:25,144 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 124 transitions. [2023-11-19 03:35:25,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 03:35:25,145 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:25,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:25,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:25,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:26,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:26,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 63 states and 127 transitions. [2023-11-19 03:35:26,552 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 127 transitions. [2023-11-19 03:35:26,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 03:35:26,553 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:26,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:26,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:27,783 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:29,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:29,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 58 states and 110 transitions. [2023-11-19 03:35:29,292 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 110 transitions. [2023-11-19 03:35:29,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 03:35:29,293 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:29,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:29,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:30,353 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:34,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:34,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 61 states and 117 transitions. [2023-11-19 03:35:34,605 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 117 transitions. [2023-11-19 03:35:34,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 03:35:34,606 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:34,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:34,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:36,078 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:40,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:40,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 64 states and 125 transitions. [2023-11-19 03:35:40,141 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 125 transitions. [2023-11-19 03:35:40,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 03:35:40,142 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:40,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:40,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:41,857 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.