./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/termination-15/cstrncpy_diffterm_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_6d5f44ff-5ef9-4873-9529-971f9e7169eb/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d5f44ff-5ef9-4873-9529-971f9e7169eb/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_6d5f44ff-5ef9-4873-9529-971f9e7169eb/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d5f44ff-5ef9-4873-9529-971f9e7169eb/bin/ukojak-verify-G8NBE6pJGL/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/termination-15/cstrncpy_diffterm_alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d5f44ff-5ef9-4873-9529-971f9e7169eb/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d5f44ff-5ef9-4873-9529-971f9e7169eb/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 64bit --witnessprinter.graph.data.programhash 29a0de6b7697865a37e60a82150f204059592b57f74fd0ca1d5024446fc510b4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:59:24,021 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:59:24,111 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d5f44ff-5ef9-4873-9529-971f9e7169eb/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf [2023-11-19 03:59:24,123 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:59:24,124 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:59:24,163 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:59:24,165 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:59:24,166 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:59:24,167 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:59:24,172 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:59:24,173 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:59:24,173 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 03:59:24,174 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 03:59:24,175 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 03:59:24,176 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:59:24,176 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 03:59:24,177 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:59:24,177 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:59:24,178 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:59:24,178 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:59:24,179 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:59:24,180 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:59:24,180 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:59:24,181 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:59:24,181 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:59:24,181 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:59:24,182 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_6d5f44ff-5ef9-4873-9529-971f9e7169eb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d5f44ff-5ef9-4873-9529-971f9e7169eb/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29a0de6b7697865a37e60a82150f204059592b57f74fd0ca1d5024446fc510b4 [2023-11-19 03:59:24,442 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:59:24,464 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:59:24,467 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:59:24,468 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:59:24,469 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:59:24,471 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d5f44ff-5ef9-4873-9529-971f9e7169eb/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/termination-15/cstrncpy_diffterm_alloca.i [2023-11-19 03:59:27,779 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:59:28,124 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:59:28,124 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d5f44ff-5ef9-4873-9529-971f9e7169eb/sv-benchmarks/c/termination-15/cstrncpy_diffterm_alloca.i [2023-11-19 03:59:28,144 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d5f44ff-5ef9-4873-9529-971f9e7169eb/bin/ukojak-verify-G8NBE6pJGL/data/e4aea2e8f/a52d7b6648e842768c6ff734b328250a/FLAGc3f82c526 [2023-11-19 03:59:28,159 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d5f44ff-5ef9-4873-9529-971f9e7169eb/bin/ukojak-verify-G8NBE6pJGL/data/e4aea2e8f/a52d7b6648e842768c6ff734b328250a [2023-11-19 03:59:28,162 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:59:28,164 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:59:28,165 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:59:28,166 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:59:28,171 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:59:28,172 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:59:28" (1/1) ... [2023-11-19 03:59:28,174 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d3822ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:28, skipping insertion in model container [2023-11-19 03:59:28,174 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:59:28" (1/1) ... [2023-11-19 03:59:28,215 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:59:28,608 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:59:28,624 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:59:28,689 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:59:28,737 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:59:28,738 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:28 WrapperNode [2023-11-19 03:59:28,738 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:59:28,740 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:59:28,740 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:59:28,740 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:59:28,749 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:28" (1/1) ... [2023-11-19 03:59:28,775 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:28" (1/1) ... [2023-11-19 03:59:28,812 INFO L138 Inliner]: procedures = 152, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 77 [2023-11-19 03:59:28,812 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:59:28,813 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:59:28,814 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:59:28,814 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:59:28,823 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:28" (1/1) ... [2023-11-19 03:59:28,825 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:28" (1/1) ... [2023-11-19 03:59:28,843 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:28" (1/1) ... [2023-11-19 03:59:28,844 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:28" (1/1) ... [2023-11-19 03:59:28,850 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:28" (1/1) ... [2023-11-19 03:59:28,866 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:28" (1/1) ... [2023-11-19 03:59:28,868 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:28" (1/1) ... [2023-11-19 03:59:28,869 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:28" (1/1) ... [2023-11-19 03:59:28,872 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:59:28,887 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:59:28,888 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:59:28,888 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:59:28,889 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:28" (1/1) ... [2023-11-19 03:59:28,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:59:28,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d5f44ff-5ef9-4873-9529-971f9e7169eb/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:59:28,939 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d5f44ff-5ef9-4873-9529-971f9e7169eb/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:59:28,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d5f44ff-5ef9-4873-9529-971f9e7169eb/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:59:29,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 03:59:29,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 03:59:29,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 03:59:29,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 03:59:29,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:59:29,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:59:29,100 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:59:29,102 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:59:29,398 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:59:29,511 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:59:29,511 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 03:59:29,516 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:59:29 BoogieIcfgContainer [2023-11-19 03:59:29,517 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:59:29,518 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:59:29,518 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:59:29,528 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:59:29,528 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:59:29" (1/1) ... [2023-11-19 03:59:29,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:59:29,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:59:29,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 21 states and 24 transitions. [2023-11-19 03:59:29,595 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2023-11-19 03:59:29,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-19 03:59:29,597 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:59:29,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:59:29,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:59:29,903 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 03:59:29,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:59:29,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 20 states and 23 transitions. [2023-11-19 03:59:29,949 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2023-11-19 03:59:29,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-19 03:59:29,949 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:59:29,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:59:30,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:59:30,292 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 03:59:30,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:59:30,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 22 transitions. [2023-11-19 03:59:30,464 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2023-11-19 03:59:30,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 03:59:30,465 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:59:30,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:59:30,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:59:30,672 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 03:59:30,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:59:30,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 21 states and 26 transitions. [2023-11-19 03:59:30,746 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 26 transitions. [2023-11-19 03:59:30,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 03:59:30,747 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:59:30,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:59:30,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:59:30,965 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 03:59:31,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:59:31,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 23 states and 30 transitions. [2023-11-19 03:59:31,324 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2023-11-19 03:59:31,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 03:59:31,326 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:59:31,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:59:31,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:59:31,634 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 03:59:32,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:59:32,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 26 states and 36 transitions. [2023-11-19 03:59:32,507 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2023-11-19 03:59:32,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 03:59:32,507 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:59:32,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:59:32,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:59:32,938 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 03:59:34,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:59:34,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 29 states and 42 transitions. [2023-11-19 03:59:34,304 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 42 transitions. [2023-11-19 03:59:34,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 03:59:34,305 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:59:34,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:59:34,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:59:34,466 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 03:59:35,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:59:35,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 30 states and 42 transitions. [2023-11-19 03:59:35,411 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 42 transitions. [2023-11-19 03:59:35,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 03:59:35,411 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:59:35,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:59:35,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:59:36,156 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 03:59:38,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:59:38,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 36 states and 53 transitions. [2023-11-19 03:59:38,668 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 53 transitions. [2023-11-19 03:59:38,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 03:59:38,668 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:59:38,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:59:38,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:59:38,797 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:59:40,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:59:40,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 38 states and 56 transitions. [2023-11-19 03:59:40,033 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 56 transitions. [2023-11-19 03:59:40,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 03:59:40,034 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:59:40,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:59:40,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:59:40,469 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 03:59:42,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:59:42,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 43 states and 68 transitions. [2023-11-19 03:59:42,284 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 68 transitions. [2023-11-19 03:59:42,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 03:59:42,284 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:59:42,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:59:42,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:59:43,730 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 03:59:50,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:59:50,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 50 states and 88 transitions. [2023-11-19 03:59:50,066 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 88 transitions. [2023-11-19 03:59:50,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 03:59:50,066 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:59:50,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:59:50,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:59:51,378 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:59:57,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:59:57,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 55 states and 105 transitions. [2023-11-19 03:59:57,345 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 105 transitions. [2023-11-19 03:59:57,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 03:59:57,345 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:59:57,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:59:57,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:59:57,415 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:59:58,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:59:58,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 57 states and 108 transitions. [2023-11-19 03:59:58,746 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 108 transitions. [2023-11-19 03:59:58,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 03:59:58,749 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:59:58,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:59:58,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:59:59,235 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 04:00:05,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:00:05,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 64 states and 132 transitions. [2023-11-19 04:00:05,333 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 132 transitions. [2023-11-19 04:00:05,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 04:00:05,334 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:00:05,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:00:05,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:00:05,428 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 04:00:07,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:00:07,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 66 states and 139 transitions. [2023-11-19 04:00:07,167 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 139 transitions. [2023-11-19 04:00:07,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 04:00:07,169 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:00:07,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:00:07,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:00:10,348 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:00:23,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:00:23,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 75 states and 171 transitions. [2023-11-19 04:00:23,564 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 171 transitions. [2023-11-19 04:00:23,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 04:00:23,566 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:00:23,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:00:23,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:00:23,611 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.