./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/openbsd_cstrncmp-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0e0057cc 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_09a9d7f1-2e2f-43ca-b323-c29bfbf48e1e/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a9d7f1-2e2f-43ca-b323-c29bfbf48e1e/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a9d7f1-2e2f-43ca-b323-c29bfbf48e1e/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a9d7f1-2e2f-43ca-b323-c29bfbf48e1e/bin/ukojak-verify-afCqCEvfdi/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cstrncmp-alloca-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a9d7f1-2e2f-43ca-b323-c29bfbf48e1e/bin/ukojak-verify-afCqCEvfdi/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a9d7f1-2e2f-43ca-b323-c29bfbf48e1e/bin/ukojak-verify-afCqCEvfdi --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 e0283c4a072a13e5b82b0728b718582152e385c6ee1404b3ed9be4e37b84a0b2 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:04:53,594 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:04:53,685 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a9d7f1-2e2f-43ca-b323-c29bfbf48e1e/bin/ukojak-verify-afCqCEvfdi/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2023-11-24 23:04:53,692 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:04:53,693 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 23:04:53,725 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:04:53,726 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:04:53,727 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:04:53,728 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:04:53,729 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:04:53,730 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:04:53,731 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:04:53,732 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:04:53,732 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 23:04:53,733 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 23:04:53,734 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-24 23:04:53,735 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:04:53,736 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:04:53,737 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:04:53,738 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:04:53,739 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 23:04:53,747 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 23:04:53,753 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 23:04:53,754 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:04:53,755 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:04:53,755 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:04:53,756 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:04:53,757 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 23:04:53,757 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:04:53,758 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_09a9d7f1-2e2f-43ca-b323-c29bfbf48e1e/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a9d7f1-2e2f-43ca-b323-c29bfbf48e1e/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e0283c4a072a13e5b82b0728b718582152e385c6ee1404b3ed9be4e37b84a0b2 [2023-11-24 23:04:54,150 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:04:54,191 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:04:54,194 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:04:54,196 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:04:54,197 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:04:54,199 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a9d7f1-2e2f-43ca-b323-c29bfbf48e1e/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/array-memsafety/openbsd_cstrncmp-alloca-2.i [2023-11-24 23:04:58,058 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:04:58,431 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:04:58,431 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a9d7f1-2e2f-43ca-b323-c29bfbf48e1e/sv-benchmarks/c/array-memsafety/openbsd_cstrncmp-alloca-2.i [2023-11-24 23:04:58,461 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a9d7f1-2e2f-43ca-b323-c29bfbf48e1e/bin/ukojak-verify-afCqCEvfdi/data/bcbf3da81/9fa25a2dc0b347a2ba4f3fedd33bb563/FLAGd5025f580 [2023-11-24 23:04:58,486 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a9d7f1-2e2f-43ca-b323-c29bfbf48e1e/bin/ukojak-verify-afCqCEvfdi/data/bcbf3da81/9fa25a2dc0b347a2ba4f3fedd33bb563 [2023-11-24 23:04:58,494 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:04:58,498 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:04:58,503 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:04:58,504 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:04:58,512 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:04:58,515 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:04:58" (1/1) ... [2023-11-24 23:04:58,517 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49ba5fdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:04:58, skipping insertion in model container [2023-11-24 23:04:58,517 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:04:58" (1/1) ... [2023-11-24 23:04:58,595 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:04:59,102 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:04:59,125 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:04:59,191 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:04:59,232 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:04:59,232 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:04:59 WrapperNode [2023-11-24 23:04:59,232 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:04:59,234 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:04:59,234 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:04:59,234 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:04:59,244 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:04:59" (1/1) ... [2023-11-24 23:04:59,273 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:04:59" (1/1) ... [2023-11-24 23:04:59,316 INFO L138 Inliner]: procedures = 117, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 109 [2023-11-24 23:04:59,316 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:04:59,317 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:04:59,318 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:04:59,325 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:04:59,336 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:04:59" (1/1) ... [2023-11-24 23:04:59,336 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:04:59" (1/1) ... [2023-11-24 23:04:59,341 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:04:59" (1/1) ... [2023-11-24 23:04:59,341 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:04:59" (1/1) ... [2023-11-24 23:04:59,350 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:04:59" (1/1) ... [2023-11-24 23:04:59,355 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:04:59" (1/1) ... [2023-11-24 23:04:59,357 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:04:59" (1/1) ... [2023-11-24 23:04:59,359 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:04:59" (1/1) ... [2023-11-24 23:04:59,363 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:04:59,364 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:04:59,364 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:04:59,365 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:04:59,366 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:04:59" (1/1) ... [2023-11-24 23:04:59,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:04:59,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a9d7f1-2e2f-43ca-b323-c29bfbf48e1e/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 23:04:59,412 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a9d7f1-2e2f-43ca-b323-c29bfbf48e1e/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 23:04:59,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09a9d7f1-2e2f-43ca-b323-c29bfbf48e1e/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 23:04:59,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:04:59,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:04:59,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:04:59,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:04:59,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:04:59,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:04:59,602 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:04:59,605 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:04:59,912 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:05:00,163 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:05:00,163 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-24 23:05:00,166 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:05:00 BoogieIcfgContainer [2023-11-24 23:05:00,166 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:05:00,167 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 23:05:00,168 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 23:05:00,182 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 23:05:00,183 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:05:00" (1/1) ... [2023-11-24 23:05:00,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:05:00,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:05:00,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 39 states and 45 transitions. [2023-11-24 23:05:00,267 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 45 transitions. [2023-11-24 23:05:00,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-24 23:05:00,270 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:05:00,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:05:00,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:05:00,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:05:00,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:05:00,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 38 states and 44 transitions. [2023-11-24 23:05:00,799 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 44 transitions. [2023-11-24 23:05:00,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-24 23:05:00,803 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:05:00,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:05:00,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:05:01,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:05:01,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:05:01,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 40 states and 48 transitions. [2023-11-24 23:05:01,914 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 48 transitions. [2023-11-24 23:05:01,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-24 23:05:01,914 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:05:01,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:05:01,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:05:02,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:05:02,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:05:02,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 42 states and 52 transitions. [2023-11-24 23:05:02,128 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 52 transitions. [2023-11-24 23:05:02,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-24 23:05:02,145 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:05:02,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:05:02,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:05:02,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:05:03,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:05:03,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 44 states and 57 transitions. [2023-11-24 23:05:03,183 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 57 transitions. [2023-11-24 23:05:03,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-24 23:05:03,186 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:05:03,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:05:03,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:05:03,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:05:03,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:05:03,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 46 states and 63 transitions. [2023-11-24 23:05:03,869 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 63 transitions. [2023-11-24 23:05:03,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-24 23:05:03,870 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:05:03,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:05:03,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:05:04,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:05:05,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:05:05,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 48 states and 72 transitions. [2023-11-24 23:05:05,568 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 72 transitions. [2023-11-24 23:05:05,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-24 23:05:05,568 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:05:05,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:05:05,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:05:06,241 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:05:07,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:05:07,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 50 states and 79 transitions. [2023-11-24 23:05:07,454 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 79 transitions. [2023-11-24 23:05:07,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-24 23:05:07,454 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:05:07,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:05:07,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:05:07,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:05:07,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:05:07,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 52 states and 82 transitions. [2023-11-24 23:05:07,543 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 82 transitions. [2023-11-24 23:05:07,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-24 23:05:07,544 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:05:07,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:05:07,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:05:08,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:05:10,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:05:10,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 55 states and 89 transitions. [2023-11-24 23:05:10,670 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 89 transitions. [2023-11-24 23:05:10,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 23:05:10,671 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:05:10,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:05:10,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:05:11,084 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 23:05:13,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:05:13,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 58 states and 99 transitions. [2023-11-24 23:05:13,072 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 99 transitions. [2023-11-24 23:05:13,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 23:05:13,074 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:05:13,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:05:13,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:05:13,962 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:05:16,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:05:16,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 61 states and 115 transitions. [2023-11-24 23:05:16,208 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 115 transitions. [2023-11-24 23:05:16,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 23:05:16,209 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:05:16,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:05:16,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:05:16,383 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 23:05:18,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:05:18,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 64 states and 124 transitions. [2023-11-24 23:05:18,288 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 124 transitions. [2023-11-24 23:05:18,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 23:05:18,292 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:05:18,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:05:18,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:05:18,344 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 23:05:20,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:05:20,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 67 states and 130 transitions. [2023-11-24 23:05:20,224 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 130 transitions. [2023-11-24 23:05:20,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 23:05:20,226 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:05:20,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:05:20,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:05:20,838 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:05:23,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:05:23,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 70 states and 148 transitions. [2023-11-24 23:05:23,128 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 148 transitions. [2023-11-24 23:05:23,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 23:05:23,129 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:05:23,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:05:23,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:05:23,281 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:05:23,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:05:23,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 71 states and 148 transitions. [2023-11-24 23:05:23,896 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 148 transitions. [2023-11-24 23:05:23,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 23:05:23,900 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:05:23,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:05:23,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:05:24,361 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 23:05:25,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:05:25,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 74 states and 164 transitions. [2023-11-24 23:05:25,941 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 164 transitions. [2023-11-24 23:05:25,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 23:05:25,941 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:05:25,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:05:25,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:05:25,959 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:05:26,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:05:26,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 75 states and 168 transitions. [2023-11-24 23:05:26,604 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 168 transitions. [2023-11-24 23:05:26,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 23:05:26,605 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:05:26,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:05:26,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:05:26,623 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:05:27,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:05:27,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 76 states and 172 transitions. [2023-11-24 23:05:27,209 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 172 transitions. [2023-11-24 23:05:27,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 23:05:27,209 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:05:27,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:05:27,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:05:28,029 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:05:29,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:05:29,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 77 states and 180 transitions. [2023-11-24 23:05:29,483 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 180 transitions. [2023-11-24 23:05:29,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 23:05:29,483 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:05:29,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:05:29,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:05:29,840 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:05:30,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:05:30,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 78 states and 184 transitions. [2023-11-24 23:05:30,794 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 184 transitions. [2023-11-24 23:05:30,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 23:05:30,795 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:05:30,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:05:30,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:05:31,508 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:05:35,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:05:35,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 83 states and 196 transitions. [2023-11-24 23:05:35,957 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 196 transitions. [2023-11-24 23:05:35,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 23:05:35,958 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:05:35,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:05:35,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:05:36,264 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 23:05:39,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:05:39,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 85 states and 202 transitions. [2023-11-24 23:05:39,506 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 202 transitions. [2023-11-24 23:05:39,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 23:05:39,507 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:05:39,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:05:39,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:05:39,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:05:40,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:05:40,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 87 states and 207 transitions. [2023-11-24 23:05:40,750 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 207 transitions. [2023-11-24 23:05:40,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 23:05:40,751 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:05:40,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:05:40,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:05:41,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:05:43,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:05:43,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 90 states and 215 transitions. [2023-11-24 23:05:43,279 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 215 transitions. [2023-11-24 23:05:43,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 23:05:43,280 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:05:43,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:05:43,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:05:44,690 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.