./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/openbsd_cstrncpy-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cf1a7837 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_e2890253-6b1a-4244-8650-174f00d66eae/bin/ukojak-verify-0OAaufAVZV/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2890253-6b1a-4244-8650-174f00d66eae/bin/ukojak-verify-0OAaufAVZV/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2890253-6b1a-4244-8650-174f00d66eae/bin/ukojak-verify-0OAaufAVZV/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2890253-6b1a-4244-8650-174f00d66eae/bin/ukojak-verify-0OAaufAVZV/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cstrncpy-alloca-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2890253-6b1a-4244-8650-174f00d66eae/bin/ukojak-verify-0OAaufAVZV/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2890253-6b1a-4244-8650-174f00d66eae/bin/ukojak-verify-0OAaufAVZV --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 57855fd15a600148bf8b2d693e60ae0827a95c157ed69e07e1c42c75fda7c9c4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-11 23:47:47,915 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-11 23:47:48,035 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2890253-6b1a-4244-8650-174f00d66eae/bin/ukojak-verify-0OAaufAVZV/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2023-11-11 23:47:48,039 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-11 23:47:48,040 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-11 23:47:48,080 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-11 23:47:48,081 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-11 23:47:48,082 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-11 23:47:48,082 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-11 23:47:48,083 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-11 23:47:48,083 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-11 23:47:48,084 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-11 23:47:48,085 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-11 23:47:48,085 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-11 23:47:48,086 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-11 23:47:48,086 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-11 23:47:48,087 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-11 23:47:48,088 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-11 23:47:48,088 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-11 23:47:48,089 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-11 23:47:48,089 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-11 23:47:48,091 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-11 23:47:48,092 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-11 23:47:48,093 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:47:48,093 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-11 23:47:48,094 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-11 23:47:48,094 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-11 23:47:48,095 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-11 23:47:48,095 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_e2890253-6b1a-4244-8650-174f00d66eae/bin/ukojak-verify-0OAaufAVZV/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2890253-6b1a-4244-8650-174f00d66eae/bin/ukojak-verify-0OAaufAVZV Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57855fd15a600148bf8b2d693e60ae0827a95c157ed69e07e1c42c75fda7c9c4 [2023-11-11 23:47:48,374 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-11 23:47:48,398 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-11 23:47:48,401 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-11 23:47:48,403 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-11 23:47:48,404 INFO L274 PluginConnector]: CDTParser initialized [2023-11-11 23:47:48,405 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2890253-6b1a-4244-8650-174f00d66eae/bin/ukojak-verify-0OAaufAVZV/../../sv-benchmarks/c/array-memsafety/openbsd_cstrncpy-alloca-2.i [2023-11-11 23:47:51,850 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-11 23:47:52,140 INFO L384 CDTParser]: Found 1 translation units. [2023-11-11 23:47:52,140 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2890253-6b1a-4244-8650-174f00d66eae/sv-benchmarks/c/array-memsafety/openbsd_cstrncpy-alloca-2.i [2023-11-11 23:47:52,159 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2890253-6b1a-4244-8650-174f00d66eae/bin/ukojak-verify-0OAaufAVZV/data/3a2377ed5/4d4667eac99444deae3ad48d935e6ea9/FLAG7e4a3e9a7 [2023-11-11 23:47:52,176 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2890253-6b1a-4244-8650-174f00d66eae/bin/ukojak-verify-0OAaufAVZV/data/3a2377ed5/4d4667eac99444deae3ad48d935e6ea9 [2023-11-11 23:47:52,179 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-11 23:47:52,181 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-11 23:47:52,183 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-11 23:47:52,183 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-11 23:47:52,193 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-11 23:47:52,193 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:47:52" (1/1) ... [2023-11-11 23:47:52,195 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f11e539 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:47:52, skipping insertion in model container [2023-11-11 23:47:52,195 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:47:52" (1/1) ... [2023-11-11 23:47:52,276 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-11 23:47:52,626 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:47:52,642 INFO L202 MainTranslator]: Completed pre-run [2023-11-11 23:47:52,692 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:47:52,732 INFO L206 MainTranslator]: Completed translation [2023-11-11 23:47:52,732 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:47:52 WrapperNode [2023-11-11 23:47:52,733 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-11 23:47:52,734 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-11 23:47:52,734 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-11 23:47:52,735 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-11 23:47:52,744 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:47:52" (1/1) ... [2023-11-11 23:47:52,761 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:47:52" (1/1) ... [2023-11-11 23:47:52,802 INFO L138 Inliner]: procedures = 117, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 89 [2023-11-11 23:47:52,803 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-11 23:47:52,804 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-11 23:47:52,804 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-11 23:47:52,804 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-11 23:47:52,814 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:47:52" (1/1) ... [2023-11-11 23:47:52,815 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:47:52" (1/1) ... [2023-11-11 23:47:52,819 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:47:52" (1/1) ... [2023-11-11 23:47:52,819 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:47:52" (1/1) ... [2023-11-11 23:47:52,827 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:47:52" (1/1) ... [2023-11-11 23:47:52,831 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:47:52" (1/1) ... [2023-11-11 23:47:52,834 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:47:52" (1/1) ... [2023-11-11 23:47:52,835 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:47:52" (1/1) ... [2023-11-11 23:47:52,852 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-11 23:47:52,853 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-11 23:47:52,854 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-11 23:47:52,854 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-11 23:47:52,855 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:47:52" (1/1) ... [2023-11-11 23:47:52,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:47:52,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2890253-6b1a-4244-8650-174f00d66eae/bin/ukojak-verify-0OAaufAVZV/z3 [2023-11-11 23:47:52,914 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2890253-6b1a-4244-8650-174f00d66eae/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-11 23:47:52,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2890253-6b1a-4244-8650-174f00d66eae/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-11 23:47:52,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-11 23:47:52,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-11 23:47:52,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-11 23:47:52,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-11 23:47:52,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-11 23:47:52,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-11 23:47:53,113 INFO L236 CfgBuilder]: Building ICFG [2023-11-11 23:47:53,115 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-11 23:47:53,421 INFO L277 CfgBuilder]: Performing block encoding [2023-11-11 23:47:53,564 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-11 23:47:53,564 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-11 23:47:53,568 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:47:53 BoogieIcfgContainer [2023-11-11 23:47:53,568 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-11 23:47:53,569 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-11 23:47:53,569 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-11 23:47:53,582 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-11 23:47:53,583 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:47:53" (1/1) ... [2023-11-11 23:47:53,594 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-11 23:47:53,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:47:53,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 28 states and 34 transitions. [2023-11-11 23:47:53,666 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2023-11-11 23:47:53,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-11 23:47:53,669 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:47:53,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:47:53,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:47:54,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:47:54,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:47:54,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 27 states and 33 transitions. [2023-11-11 23:47:54,157 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 33 transitions. [2023-11-11 23:47:54,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-11 23:47:54,160 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:47:54,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:47:54,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:47:54,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:47:55,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:47:55,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 29 states and 37 transitions. [2023-11-11 23:47:55,103 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 37 transitions. [2023-11-11 23:47:55,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-11 23:47:55,105 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:47:55,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:47:55,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:47:55,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:47:55,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:47:55,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 28 states and 36 transitions. [2023-11-11 23:47:55,753 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2023-11-11 23:47:55,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-11 23:47:55,755 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:47:55,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:47:55,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:47:56,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:47:56,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:47:56,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 29 states and 38 transitions. [2023-11-11 23:47:56,724 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 38 transitions. [2023-11-11 23:47:56,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-11 23:47:56,728 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:47:56,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:47:56,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:47:57,083 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:47:58,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:47:58,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 32 states and 45 transitions. [2023-11-11 23:47:58,063 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 45 transitions. [2023-11-11 23:47:58,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-11 23:47:58,064 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:47:58,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:47:58,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:47:58,515 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:47:59,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:47:59,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 34 states and 50 transitions. [2023-11-11 23:47:59,870 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 50 transitions. [2023-11-11 23:47:59,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-11 23:47:59,871 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:47:59,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:47:59,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:48:00,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:48:01,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:48:01,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 36 states and 57 transitions. [2023-11-11 23:48:01,124 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 57 transitions. [2023-11-11 23:48:01,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-11 23:48:01,125 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:48:01,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:48:01,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:48:01,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:48:02,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:48:02,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 38 states and 60 transitions. [2023-11-11 23:48:02,099 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 60 transitions. [2023-11-11 23:48:02,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-11 23:48:02,099 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:48:02,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:48:02,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:48:02,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:48:04,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:48:04,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 41 states and 66 transitions. [2023-11-11 23:48:04,143 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 66 transitions. [2023-11-11 23:48:04,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-11 23:48:04,144 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:48:04,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:48:04,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:48:04,715 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:48:05,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:48:05,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 36 states and 53 transitions. [2023-11-11 23:48:05,614 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 53 transitions. [2023-11-11 23:48:05,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-11 23:48:05,615 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:48:05,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:48:05,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:48:06,496 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:48:07,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:48:07,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 32 states and 44 transitions. [2023-11-11 23:48:07,962 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 44 transitions. [2023-11-11 23:48:07,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-11 23:48:07,963 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:48:07,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:48:08,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:48:09,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:48:13,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:48:13,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 37 states and 54 transitions. [2023-11-11 23:48:13,170 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 54 transitions. [2023-11-11 23:48:13,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-11 23:48:13,171 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:48:13,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:48:13,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:48:14,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:48:19,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:48:19,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 41 states and 62 transitions. [2023-11-11 23:48:19,976 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 62 transitions. [2023-11-11 23:48:19,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-11 23:48:19,977 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:48:19,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:48:19,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:48:20,097 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-11 23:48:21,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:48:21,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 42 states and 64 transitions. [2023-11-11 23:48:21,368 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 64 transitions. [2023-11-11 23:48:21,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-11 23:48:21,369 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:48:21,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:48:21,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:48:21,788 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:48:25,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:48:25,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 44 states and 67 transitions. [2023-11-11 23:48:25,329 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 67 transitions. [2023-11-11 23:48:25,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-11 23:48:25,331 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:48:25,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:48:25,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:48:25,873 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-11 23:48:29,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:48:29,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 46 states and 71 transitions. [2023-11-11 23:48:29,976 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 71 transitions. [2023-11-11 23:48:29,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-11 23:48:29,977 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:48:29,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:48:29,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:48:30,168 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-11 23:48:31,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:48:31,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 43 states and 58 transitions. [2023-11-11 23:48:31,048 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 58 transitions. [2023-11-11 23:48:31,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-11 23:48:31,050 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:48:31,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:48:31,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:48:31,158 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-11 23:48:31,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:48:31,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 40 states and 53 transitions. [2023-11-11 23:48:31,994 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 53 transitions. [2023-11-11 23:48:31,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-11 23:48:31,995 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:48:31,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:48:32,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:48:33,166 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-11 23:48:38,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:48:38,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 37 states and 47 transitions. [2023-11-11 23:48:38,366 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 47 transitions. [2023-11-11 23:48:38,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-11 23:48:38,366 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:48:38,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:48:38,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:48:38,459 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-11 23:48:40,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:48:40,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 40 states and 52 transitions. [2023-11-11 23:48:40,089 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 52 transitions. [2023-11-11 23:48:40,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-11 23:48:40,090 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:48:40,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:48:40,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:48:41,597 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.