./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 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5b3082-df4c-4317-b3ef-e8b20035aaa7/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5b3082-df4c-4317-b3ef-e8b20035aaa7/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_2b5b3082-df4c-4317-b3ef-e8b20035aaa7/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5b3082-df4c-4317-b3ef-e8b20035aaa7/bin/ukojak-verify-afCqCEvfdi/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_2b5b3082-df4c-4317-b3ef-e8b20035aaa7/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_2b5b3082-df4c-4317-b3ef-e8b20035aaa7/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 8688e0efa9d37c2205606fbd307da42d83b0f0e2936dd15336b8b67e136d86b0 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:57:01,739 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:57:01,877 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5b3082-df4c-4317-b3ef-e8b20035aaa7/bin/ukojak-verify-afCqCEvfdi/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2023-11-24 22:57:01,892 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:57:01,893 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:57:01,940 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:57:01,943 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:57:01,944 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:57:01,945 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:57:01,951 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:57:01,952 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:57:01,953 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:57:01,954 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:57:01,956 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 22:57:01,956 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 22:57:01,957 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-24 22:57:01,957 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:57:01,958 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 22:57:01,958 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:57:01,959 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:57:01,960 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:57:01,960 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:57:01,961 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:57:01,962 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:57:01,963 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:57:01,963 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:57:01,964 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:57:01,964 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:57:01,965 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:57:01,965 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_2b5b3082-df4c-4317-b3ef-e8b20035aaa7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5b3082-df4c-4317-b3ef-e8b20035aaa7/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8688e0efa9d37c2205606fbd307da42d83b0f0e2936dd15336b8b67e136d86b0 [2023-11-24 22:57:02,283 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:57:02,324 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:57:02,328 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:57:02,330 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:57:02,330 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:57:02,332 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5b3082-df4c-4317-b3ef-e8b20035aaa7/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/array-memsafety/openbsd_cstrcat-alloca-2.i [2023-11-24 22:57:05,873 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:57:06,301 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:57:06,301 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5b3082-df4c-4317-b3ef-e8b20035aaa7/sv-benchmarks/c/array-memsafety/openbsd_cstrcat-alloca-2.i [2023-11-24 22:57:06,323 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5b3082-df4c-4317-b3ef-e8b20035aaa7/bin/ukojak-verify-afCqCEvfdi/data/0875fe291/b9f79ec7f71240ef8d840ea0ecf25c41/FLAGd7bc58aa4 [2023-11-24 22:57:06,344 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5b3082-df4c-4317-b3ef-e8b20035aaa7/bin/ukojak-verify-afCqCEvfdi/data/0875fe291/b9f79ec7f71240ef8d840ea0ecf25c41 [2023-11-24 22:57:06,351 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:57:06,354 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:57:06,359 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:57:06,359 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:57:06,365 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:57:06,367 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:57:06" (1/1) ... [2023-11-24 22:57:06,368 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f05e66b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:06, skipping insertion in model container [2023-11-24 22:57:06,369 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:57:06" (1/1) ... [2023-11-24 22:57:06,453 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:57:06,835 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:57:06,849 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:57:06,939 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:57:06,983 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:57:06,984 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:06 WrapperNode [2023-11-24 22:57:06,984 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:57:06,986 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:57:06,986 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:57:06,986 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:57:06,996 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:06" (1/1) ... [2023-11-24 22:57:07,012 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:06" (1/1) ... [2023-11-24 22:57:07,059 INFO L138 Inliner]: procedures = 117, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 100 [2023-11-24 22:57:07,060 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:57:07,061 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:57:07,061 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:57:07,062 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:57:07,072 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:06" (1/1) ... [2023-11-24 22:57:07,073 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:06" (1/1) ... [2023-11-24 22:57:07,099 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:06" (1/1) ... [2023-11-24 22:57:07,099 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:06" (1/1) ... [2023-11-24 22:57:07,106 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:06" (1/1) ... [2023-11-24 22:57:07,117 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:06" (1/1) ... [2023-11-24 22:57:07,119 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:06" (1/1) ... [2023-11-24 22:57:07,124 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:06" (1/1) ... [2023-11-24 22:57:07,127 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:57:07,128 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:57:07,128 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:57:07,128 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:57:07,129 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:06" (1/1) ... [2023-11-24 22:57:07,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:57:07,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5b3082-df4c-4317-b3ef-e8b20035aaa7/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:57:07,176 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5b3082-df4c-4317-b3ef-e8b20035aaa7/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:57:07,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b5b3082-df4c-4317-b3ef-e8b20035aaa7/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:57:07,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 22:57:07,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 22:57:07,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 22:57:07,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 22:57:07,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:57:07,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:57:07,379 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:57:07,381 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:57:07,637 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:57:07,775 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:57:07,775 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-24 22:57:07,777 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:57:07 BoogieIcfgContainer [2023-11-24 22:57:07,778 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:57:07,779 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:57:07,779 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:57:07,792 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:57:07,793 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:57:07" (1/1) ... [2023-11-24 22:57:07,804 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:57:07,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:57:07,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 32 states and 38 transitions. [2023-11-24 22:57:07,872 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2023-11-24 22:57:07,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-24 22:57:07,874 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:57:07,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:57:08,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:57:08,161 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 22:57:08,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:57:08,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 33 states and 39 transitions. [2023-11-24 22:57:08,238 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2023-11-24 22:57:08,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-24 22:57:08,242 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:57:08,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:57:08,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:57:08,605 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 22:57:08,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:57:08,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 32 states and 38 transitions. [2023-11-24 22:57:08,656 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2023-11-24 22:57:08,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-24 22:57:08,657 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:57:08,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:57:08,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:57:09,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:57:09,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:57:09,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 34 states and 42 transitions. [2023-11-24 22:57:09,778 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2023-11-24 22:57:09,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-24 22:57:09,779 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:57:09,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:57:09,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:57:09,885 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 22:57:10,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:57:10,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 36 states and 46 transitions. [2023-11-24 22:57:10,167 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 46 transitions. [2023-11-24 22:57:10,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-24 22:57:10,170 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:57:10,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:57:10,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:57:10,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:57:12,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:57:12,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 38 states and 51 transitions. [2023-11-24 22:57:12,181 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 51 transitions. [2023-11-24 22:57:12,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-24 22:57:12,181 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:57:12,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:57:12,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:57:12,722 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 22:57:14,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:57:14,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 40 states and 58 transitions. [2023-11-24 22:57:14,377 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 58 transitions. [2023-11-24 22:57:14,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-24 22:57:14,378 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:57:14,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:57:14,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:57:14,434 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 22:57:15,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:57:15,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 41 states and 60 transitions. [2023-11-24 22:57:15,195 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 60 transitions. [2023-11-24 22:57:15,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 22:57:15,196 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:57:15,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:57:15,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:57:15,673 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 22:57:17,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:57:17,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 44 states and 69 transitions. [2023-11-24 22:57:17,217 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 69 transitions. [2023-11-24 22:57:17,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 22:57:17,218 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:57:17,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:57:17,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:57:17,262 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 22:57:17,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:57:17,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 46 states and 72 transitions. [2023-11-24 22:57:17,697 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 72 transitions. [2023-11-24 22:57:17,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 22:57:17,698 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:57:17,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:57:17,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:57:18,365 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 22:57:21,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:57:21,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 49 states and 78 transitions. [2023-11-24 22:57:21,394 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 78 transitions. [2023-11-24 22:57:21,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 22:57:21,395 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:57:21,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:57:21,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:57:22,305 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 22:57:25,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:57:25,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 52 states and 93 transitions. [2023-11-24 22:57:25,657 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 93 transitions. [2023-11-24 22:57:25,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 22:57:25,659 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:57:25,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:57:25,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:57:26,780 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 22:57:29,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:57:29,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 53 states and 99 transitions. [2023-11-24 22:57:29,701 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 99 transitions. [2023-11-24 22:57:29,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 22:57:29,702 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:57:29,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:57:29,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:57:29,752 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 22:57:31,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:57:31,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 54 states and 102 transitions. [2023-11-24 22:57:31,061 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 102 transitions. [2023-11-24 22:57:31,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 22:57:31,062 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:57:31,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:57:31,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:57:31,973 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 22:57:34,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:57:34,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 57 states and 112 transitions. [2023-11-24 22:57:34,371 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 112 transitions. [2023-11-24 22:57:34,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 22:57:34,373 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:57:34,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:57:34,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:57:34,549 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 22:57:35,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:57:35,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 59 states and 120 transitions. [2023-11-24 22:57:35,692 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 120 transitions. [2023-11-24 22:57:35,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 22:57:35,693 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:57:35,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:57:35,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:57:36,171 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 22:57:38,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:57:38,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 62 states and 134 transitions. [2023-11-24 22:57:38,077 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 134 transitions. [2023-11-24 22:57:38,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 22:57:38,077 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:57:38,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:57:38,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:57:38,147 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 22:57:38,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:57:38,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 63 states and 137 transitions. [2023-11-24 22:57:38,703 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 137 transitions. [2023-11-24 22:57:38,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 22:57:38,704 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:57:38,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:57:38,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:57:38,750 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 22:57:39,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:57:39,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 64 states and 140 transitions. [2023-11-24 22:57:39,290 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 140 transitions. [2023-11-24 22:57:39,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 22:57:39,290 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:57:39,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:57:39,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:57:39,488 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 22:57:39,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:57:39,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 65 states and 141 transitions. [2023-11-24 22:57:39,684 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 141 transitions. [2023-11-24 22:57:39,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 22:57:39,685 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:57:39,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:57:39,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:57:40,117 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 22:57:40,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:57:40,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 66 states and 144 transitions. [2023-11-24 22:57:40,968 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 144 transitions. [2023-11-24 22:57:40,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-24 22:57:40,969 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:57:40,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:57:40,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:57:42,142 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 22:57:44,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:57:44,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 63 states and 135 transitions. [2023-11-24 22:57:44,815 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 135 transitions. [2023-11-24 22:57:44,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-24 22:57:44,815 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:57:44,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:57:44,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:57:46,280 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 22:57:51,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:57:51,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 64 states and 137 transitions. [2023-11-24 22:57:51,450 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 137 transitions. [2023-11-24 22:57:51,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-24 22:57:51,452 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:57:51,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:57:51,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:57:53,376 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.