./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/openbsd_cstrnlen-alloca-1.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_7f65d9c2-f85a-4f20-8e58-cb0777610dc2/bin/ukojak-verify-0OAaufAVZV/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f65d9c2-f85a-4f20-8e58-cb0777610dc2/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_7f65d9c2-f85a-4f20-8e58-cb0777610dc2/bin/ukojak-verify-0OAaufAVZV/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f65d9c2-f85a-4f20-8e58-cb0777610dc2/bin/ukojak-verify-0OAaufAVZV/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cstrnlen-alloca-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f65d9c2-f85a-4f20-8e58-cb0777610dc2/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_7f65d9c2-f85a-4f20-8e58-cb0777610dc2/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 b06b08d501323de811576605780ed72bdf24037e477195316df25396abb6c35b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-11 23:46:48,707 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-11 23:46:48,824 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f65d9c2-f85a-4f20-8e58-cb0777610dc2/bin/ukojak-verify-0OAaufAVZV/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2023-11-11 23:46:48,835 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-11 23:46:48,836 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-11 23:46:48,878 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-11 23:46:48,881 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-11 23:46:48,881 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-11 23:46:48,882 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-11 23:46:48,888 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-11 23:46:48,889 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-11 23:46:48,889 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-11 23:46:48,890 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-11 23:46:48,891 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-11 23:46:48,892 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-11 23:46:48,892 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-11 23:46:48,893 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-11 23:46:48,893 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-11 23:46:48,894 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-11 23:46:48,894 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-11 23:46:48,895 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-11 23:46:48,896 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-11 23:46:48,896 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-11 23:46:48,898 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:46:48,899 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-11 23:46:48,899 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-11 23:46:48,900 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-11 23:46:48,900 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-11 23:46:48,901 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_7f65d9c2-f85a-4f20-8e58-cb0777610dc2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f65d9c2-f85a-4f20-8e58-cb0777610dc2/bin/ukojak-verify-0OAaufAVZV Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b06b08d501323de811576605780ed72bdf24037e477195316df25396abb6c35b [2023-11-11 23:46:49,209 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-11 23:46:49,239 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-11 23:46:49,242 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-11 23:46:49,245 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-11 23:46:49,246 INFO L274 PluginConnector]: CDTParser initialized [2023-11-11 23:46:49,248 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f65d9c2-f85a-4f20-8e58-cb0777610dc2/bin/ukojak-verify-0OAaufAVZV/../../sv-benchmarks/c/array-memsafety/openbsd_cstrnlen-alloca-1.i [2023-11-11 23:46:52,525 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-11 23:46:52,811 INFO L384 CDTParser]: Found 1 translation units. [2023-11-11 23:46:52,812 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f65d9c2-f85a-4f20-8e58-cb0777610dc2/sv-benchmarks/c/array-memsafety/openbsd_cstrnlen-alloca-1.i [2023-11-11 23:46:52,826 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f65d9c2-f85a-4f20-8e58-cb0777610dc2/bin/ukojak-verify-0OAaufAVZV/data/2bc363134/31e5a114efcc489b866a825ad5b9b32d/FLAG95687f418 [2023-11-11 23:46:52,841 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f65d9c2-f85a-4f20-8e58-cb0777610dc2/bin/ukojak-verify-0OAaufAVZV/data/2bc363134/31e5a114efcc489b866a825ad5b9b32d [2023-11-11 23:46:52,844 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-11 23:46:52,846 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-11 23:46:52,848 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-11 23:46:52,851 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-11 23:46:52,856 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-11 23:46:52,857 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:46:52" (1/1) ... [2023-11-11 23:46:52,859 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c3a14c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:46:52, skipping insertion in model container [2023-11-11 23:46:52,859 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:46:52" (1/1) ... [2023-11-11 23:46:52,928 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-11 23:46:53,279 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:46:53,294 INFO L202 MainTranslator]: Completed pre-run [2023-11-11 23:46:53,365 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:46:53,404 INFO L206 MainTranslator]: Completed translation [2023-11-11 23:46:53,405 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:46:53 WrapperNode [2023-11-11 23:46:53,405 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-11 23:46:53,407 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-11 23:46:53,407 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-11 23:46:53,408 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-11 23:46:53,416 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:46:53" (1/1) ... [2023-11-11 23:46:53,429 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:46:53" (1/1) ... [2023-11-11 23:46:53,452 INFO L138 Inliner]: procedures = 117, calls = 9, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 64 [2023-11-11 23:46:53,453 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-11 23:46:53,453 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-11 23:46:53,454 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-11 23:46:53,454 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-11 23:46:53,462 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:46:53" (1/1) ... [2023-11-11 23:46:53,463 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:46:53" (1/1) ... [2023-11-11 23:46:53,466 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:46:53" (1/1) ... [2023-11-11 23:46:53,466 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:46:53" (1/1) ... [2023-11-11 23:46:53,472 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:46:53" (1/1) ... [2023-11-11 23:46:53,476 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:46:53" (1/1) ... [2023-11-11 23:46:53,478 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:46:53" (1/1) ... [2023-11-11 23:46:53,479 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:46:53" (1/1) ... [2023-11-11 23:46:53,482 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-11 23:46:53,483 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-11 23:46:53,484 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-11 23:46:53,484 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-11 23:46:53,485 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:46:53" (1/1) ... [2023-11-11 23:46:53,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:46:53,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f65d9c2-f85a-4f20-8e58-cb0777610dc2/bin/ukojak-verify-0OAaufAVZV/z3 [2023-11-11 23:46:53,520 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f65d9c2-f85a-4f20-8e58-cb0777610dc2/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-11 23:46:53,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7f65d9c2-f85a-4f20-8e58-cb0777610dc2/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-11 23:46:53,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-11 23:46:53,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-11 23:46:53,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-11 23:46:53,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-11 23:46:53,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-11 23:46:53,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-11 23:46:53,684 INFO L236 CfgBuilder]: Building ICFG [2023-11-11 23:46:53,686 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-11 23:46:53,939 INFO L277 CfgBuilder]: Performing block encoding [2023-11-11 23:46:54,000 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-11 23:46:54,000 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-11 23:46:54,003 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:46:54 BoogieIcfgContainer [2023-11-11 23:46:54,003 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-11 23:46:54,004 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-11 23:46:54,004 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-11 23:46:54,016 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-11 23:46:54,016 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:46:54" (1/1) ... [2023-11-11 23:46:54,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-11 23:46:54,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:46:54,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2023-11-11 23:46:54,086 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2023-11-11 23:46:54,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-11 23:46:54,089 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:46:54,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:46:54,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:46:55,036 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 23:46:55,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:46:55,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 20 states and 26 transitions. [2023-11-11 23:46:55,174 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2023-11-11 23:46:55,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-11 23:46:55,181 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:46:55,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:46:55,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:46:55,626 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 23:46:56,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:46:56,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 31 transitions. [2023-11-11 23:46:56,367 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2023-11-11 23:46:56,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-11 23:46:56,367 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:46:56,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:46:56,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:46:56,411 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 23:46:56,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:46:56,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 23 states and 34 transitions. [2023-11-11 23:46:56,842 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 34 transitions. [2023-11-11 23:46:56,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-11 23:46:56,843 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:46:56,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:46:56,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:46:57,109 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 23:46:57,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:46:57,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 25 states and 43 transitions. [2023-11-11 23:46:57,911 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 43 transitions. [2023-11-11 23:46:57,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-11 23:46:57,911 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:46:57,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:46:57,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:46:58,335 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 23:46:59,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:46:59,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 26 states and 48 transitions. [2023-11-11 23:46:59,383 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 48 transitions. [2023-11-11 23:46:59,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-11 23:46:59,383 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:46:59,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:46:59,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:46:59,414 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 23:46:59,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:46:59,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 24 states and 44 transitions. [2023-11-11 23:46:59,794 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 44 transitions. [2023-11-11 23:46:59,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-11 23:46:59,794 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:46:59,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:46:59,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:47:00,330 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:47:01,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:47:01,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 26 states and 49 transitions. [2023-11-11 23:47:01,812 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 49 transitions. [2023-11-11 23:47:01,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-11 23:47:01,813 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:47:01,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:47:01,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:47:02,531 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 23:47:03,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:47:03,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 27 states and 52 transitions. [2023-11-11 23:47:03,641 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 52 transitions. [2023-11-11 23:47:03,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-11 23:47:03,642 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:47:03,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:47:03,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:47:03,860 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:47:04,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:47:04,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2023-11-11 23:47:04,350 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2023-11-11 23:47:04,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-11 23:47:04,351 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:47:04,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:47:04,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:47:04,485 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 23:47:04,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:47:04,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 18 states and 23 transitions. [2023-11-11 23:47:04,624 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2023-11-11 23:47:04,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-11 23:47:04,625 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:47:04,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:47:04,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:47:04,948 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 23:47:05,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:47:05,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 22 states and 30 transitions. [2023-11-11 23:47:05,931 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2023-11-11 23:47:05,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-11 23:47:05,932 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:47:05,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:47:05,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:47:06,305 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 23:47:08,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:47:08,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 25 states and 37 transitions. [2023-11-11 23:47:08,408 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 37 transitions. [2023-11-11 23:47:08,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-11 23:47:08,408 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:47:08,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:47:08,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:47:08,961 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 23:47:10,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:47:10,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 24 states and 33 transitions. [2023-11-11 23:47:10,595 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 33 transitions. [2023-11-11 23:47:10,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-11 23:47:10,596 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:47:10,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:47:10,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:47:10,968 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 23:47:14,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:47:14,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 31 states and 49 transitions. [2023-11-11 23:47:14,414 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 49 transitions. [2023-11-11 23:47:14,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-11 23:47:14,414 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:47:14,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:47:14,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:47:14,456 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-11 23:47:14,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:47:14,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 32 states and 50 transitions. [2023-11-11 23:47:14,908 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 50 transitions. [2023-11-11 23:47:14,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-11 23:47:14,909 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:47:14,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:47:14,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:47:15,544 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:47:19,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:47:19,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 37 states and 58 transitions. [2023-11-11 23:47:19,301 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 58 transitions. [2023-11-11 23:47:19,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-11 23:47:19,302 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:47:19,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:47:19,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:47:19,410 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 23:47:20,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:47:20,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 36 states and 53 transitions. [2023-11-11 23:47:20,887 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 53 transitions. [2023-11-11 23:47:20,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-11 23:47:20,888 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:47:20,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:47:20,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:47:21,161 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 23:47:22,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:47:22,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 35 states and 51 transitions. [2023-11-11 23:47:22,747 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 51 transitions. [2023-11-11 23:47:22,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-11 23:47:22,748 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:47:22,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:47:22,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:47:23,533 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 23:47:27,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:47:27,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 39 states and 60 transitions. [2023-11-11 23:47:27,753 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 60 transitions. [2023-11-11 23:47:27,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-11 23:47:27,754 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:47:27,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:47:27,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:47:28,112 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 23:47:29,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:47:29,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 41 states and 61 transitions. [2023-11-11 23:47:29,514 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 61 transitions. [2023-11-11 23:47:29,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-11 23:47:29,520 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:47:29,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:47:29,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:47:31,560 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:47:39,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:47:39,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 48 states and 74 transitions. [2023-11-11 23:47:39,666 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 74 transitions. [2023-11-11 23:47:39,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-11 23:47:39,667 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:47:39,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:47:39,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:47:39,978 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:47:41,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:47:41,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 49 states and 76 transitions. [2023-11-11 23:47:41,013 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 76 transitions. [2023-11-11 23:47:41,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-11 23:47:41,014 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:47:41,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:47:41,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:47:42,850 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.