./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrspn-alloca-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_822ae3b6-0714-4092-817b-1eafbec72a33/bin/ukojak-verify-0OAaufAVZV/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822ae3b6-0714-4092-817b-1eafbec72a33/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_822ae3b6-0714-4092-817b-1eafbec72a33/bin/ukojak-verify-0OAaufAVZV/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822ae3b6-0714-4092-817b-1eafbec72a33/bin/ukojak-verify-0OAaufAVZV/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrspn-alloca-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822ae3b6-0714-4092-817b-1eafbec72a33/bin/ukojak-verify-0OAaufAVZV/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822ae3b6-0714-4092-817b-1eafbec72a33/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 64bit --witnessprinter.graph.data.programhash e3b4fa4839d843c17aca38b087d008ecb7fb2a74ec53840f4a61df0dde2a3794 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-11 23:46:41,687 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-11 23:46:41,813 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822ae3b6-0714-4092-817b-1eafbec72a33/bin/ukojak-verify-0OAaufAVZV/config/svcomp-DerefFreeMemtrack-64bit-Kojak_Default.epf [2023-11-11 23:46:41,820 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-11 23:46:41,821 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-11 23:46:41,863 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-11 23:46:41,865 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-11 23:46:41,865 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-11 23:46:41,866 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-11 23:46:41,872 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-11 23:46:41,872 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-11 23:46:41,873 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-11 23:46:41,873 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-11 23:46:41,875 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-11 23:46:41,876 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-11 23:46:41,876 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-11 23:46:41,877 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-11 23:46:41,877 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-11 23:46:41,878 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-11 23:46:41,878 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-11 23:46:41,879 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:46:41,880 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-11 23:46:41,880 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-11 23:46:41,881 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-11 23:46:41,881 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-11 23:46:41,881 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_822ae3b6-0714-4092-817b-1eafbec72a33/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822ae3b6-0714-4092-817b-1eafbec72a33/bin/ukojak-verify-0OAaufAVZV Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3b4fa4839d843c17aca38b087d008ecb7fb2a74ec53840f4a61df0dde2a3794 [2023-11-11 23:46:42,184 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-11 23:46:42,216 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-11 23:46:42,219 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-11 23:46:42,221 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-11 23:46:42,221 INFO L274 PluginConnector]: CDTParser initialized [2023-11-11 23:46:42,223 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822ae3b6-0714-4092-817b-1eafbec72a33/bin/ukojak-verify-0OAaufAVZV/../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrspn-alloca-1.i [2023-11-11 23:46:45,299 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-11 23:46:45,550 INFO L384 CDTParser]: Found 1 translation units. [2023-11-11 23:46:45,551 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822ae3b6-0714-4092-817b-1eafbec72a33/sv-benchmarks/c/termination-memory-alloca/openbsd_cstrspn-alloca-1.i [2023-11-11 23:46:45,566 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822ae3b6-0714-4092-817b-1eafbec72a33/bin/ukojak-verify-0OAaufAVZV/data/fa7042754/4ac4b955f5a5406ea6fc9a634519bbee/FLAG9aae1bd22 [2023-11-11 23:46:45,586 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822ae3b6-0714-4092-817b-1eafbec72a33/bin/ukojak-verify-0OAaufAVZV/data/fa7042754/4ac4b955f5a5406ea6fc9a634519bbee [2023-11-11 23:46:45,589 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-11 23:46:45,591 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-11 23:46:45,592 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-11 23:46:45,593 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-11 23:46:45,604 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-11 23:46:45,605 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:46:45" (1/1) ... [2023-11-11 23:46:45,607 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fe49a13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:46:45, skipping insertion in model container [2023-11-11 23:46:45,607 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:46:45" (1/1) ... [2023-11-11 23:46:45,673 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-11 23:46:46,038 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:46:46,053 INFO L202 MainTranslator]: Completed pre-run [2023-11-11 23:46:46,121 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-11 23:46:46,160 INFO L206 MainTranslator]: Completed translation [2023-11-11 23:46:46,161 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:46:46 WrapperNode [2023-11-11 23:46:46,161 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-11 23:46:46,162 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-11 23:46:46,162 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-11 23:46:46,162 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-11 23:46:46,172 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:46:46" (1/1) ... [2023-11-11 23:46:46,196 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:46:46" (1/1) ... [2023-11-11 23:46:46,217 INFO L138 Inliner]: procedures = 111, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 64 [2023-11-11 23:46:46,217 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-11 23:46:46,218 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-11 23:46:46,219 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-11 23:46:46,219 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-11 23:46:46,229 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:46:46" (1/1) ... [2023-11-11 23:46:46,229 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:46:46" (1/1) ... [2023-11-11 23:46:46,232 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:46:46" (1/1) ... [2023-11-11 23:46:46,233 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:46:46" (1/1) ... [2023-11-11 23:46:46,240 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:46:46" (1/1) ... [2023-11-11 23:46:46,243 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:46:46" (1/1) ... [2023-11-11 23:46:46,245 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:46:46" (1/1) ... [2023-11-11 23:46:46,247 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:46:46" (1/1) ... [2023-11-11 23:46:46,250 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-11 23:46:46,251 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-11 23:46:46,251 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-11 23:46:46,251 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-11 23:46:46,252 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:46:46" (1/1) ... [2023-11-11 23:46:46,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-11 23:46:46,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822ae3b6-0714-4092-817b-1eafbec72a33/bin/ukojak-verify-0OAaufAVZV/z3 [2023-11-11 23:46:46,296 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822ae3b6-0714-4092-817b-1eafbec72a33/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-11 23:46:46,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_822ae3b6-0714-4092-817b-1eafbec72a33/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-11 23:46:46,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-11 23:46:46,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-11 23:46:46,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-11 23:46:46,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-11 23:46:46,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-11 23:46:46,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-11 23:46:46,471 INFO L236 CfgBuilder]: Building ICFG [2023-11-11 23:46:46,474 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-11 23:46:46,773 INFO L277 CfgBuilder]: Performing block encoding [2023-11-11 23:46:46,840 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-11 23:46:46,840 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-11 23:46:46,843 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:46:46 BoogieIcfgContainer [2023-11-11 23:46:46,844 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-11 23:46:46,845 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-11 23:46:46,845 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-11 23:46:46,856 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-11 23:46:46,856 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:46:46" (1/1) ... [2023-11-11 23:46:46,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-11 23:46:46,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:46:46,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 21 states and 23 transitions. [2023-11-11 23:46:46,937 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2023-11-11 23:46:46,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-11 23:46:46,940 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:46:46,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:46:47,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:46:47,451 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 23:46:47,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:46:47,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 20 states and 22 transitions. [2023-11-11 23:46:47,508 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2023-11-11 23:46:47,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-11 23:46:47,508 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:46:47,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:46:47,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:46:47,843 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 23:46:48,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:46:48,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 19 states and 21 transitions. [2023-11-11 23:46:48,010 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2023-11-11 23:46:48,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-11 23:46:48,011 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:46:48,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:46:48,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:46:48,074 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 23:46:48,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:46:48,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 18 states and 20 transitions. [2023-11-11 23:46:48,264 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2023-11-11 23:46:48,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-11 23:46:48,265 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:46:48,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:46:48,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:46:48,529 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 23:46:49,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:46:49,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 17 states and 19 transitions. [2023-11-11 23:46:49,063 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2023-11-11 23:46:49,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-11 23:46:49,063 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:46:49,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:46:49,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:46:49,214 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 23:46:49,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:46:49,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 22 transitions. [2023-11-11 23:46:49,534 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2023-11-11 23:46:49,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-11 23:46:49,534 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:46:49,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:46:49,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:46:49,843 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 23:46:51,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:46:51,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 21 states and 24 transitions. [2023-11-11 23:46:51,165 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2023-11-11 23:46:51,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-11 23:46:51,165 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:46:51,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:46:51,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:46:51,431 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 23:46:52,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:46:52,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 25 states and 29 transitions. [2023-11-11 23:46:52,177 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2023-11-11 23:46:52,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-11 23:46:52,177 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:46:52,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:46:52,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:46:52,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:46:54,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:46:54,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 29 states and 35 transitions. [2023-11-11 23:46:54,198 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2023-11-11 23:46:54,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-11 23:46:54,201 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:46:54,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:46:54,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:46:54,624 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 23:46:57,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:46:57,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 36 states and 46 transitions. [2023-11-11 23:46:57,767 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 46 transitions. [2023-11-11 23:46:57,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-11 23:46:57,768 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:46:57,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:46:57,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:46:59,114 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 23:47:05,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:47:05,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 42 states and 63 transitions. [2023-11-11 23:47:05,124 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 63 transitions. [2023-11-11 23:47:05,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-11 23:47:05,125 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:47:05,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:47:05,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:47:05,229 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 23:47:08,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:47:08,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 46 states and 76 transitions. [2023-11-11 23:47:08,405 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 76 transitions. [2023-11-11 23:47:08,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-11 23:47:08,406 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:47:08,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:47:08,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:47:08,611 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 23:47:10,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:47:10,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 48 states and 85 transitions. [2023-11-11 23:47:10,737 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 85 transitions. [2023-11-11 23:47:10,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-11 23:47:10,738 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:47:10,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:47:10,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:47:12,072 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 23:47:19,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:47:19,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 56 states and 105 transitions. [2023-11-11 23:47:19,930 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 105 transitions. [2023-11-11 23:47:19,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-11 23:47:19,932 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:47:19,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:47:19,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:47:20,416 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-11 23:47:24,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:47:24,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 60 states and 115 transitions. [2023-11-11 23:47:24,430 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 115 transitions. [2023-11-11 23:47:24,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-11 23:47:24,432 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:47:24,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:47:24,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:47:24,564 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-11 23:47:28,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:47:28,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 64 states and 125 transitions. [2023-11-11 23:47:28,575 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 125 transitions. [2023-11-11 23:47:28,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-11 23:47:28,576 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:47:28,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:47:28,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:47:28,792 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 23:47:31,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:47:31,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 67 states and 131 transitions. [2023-11-11 23:47:31,295 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 131 transitions. [2023-11-11 23:47:31,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-11 23:47:31,296 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:47:31,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:47:31,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:47:31,354 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-11 23:47:32,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:47:32,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 69 states and 134 transitions. [2023-11-11 23:47:32,964 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 134 transitions. [2023-11-11 23:47:32,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-11 23:47:32,968 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:47:32,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:47:32,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:47:33,021 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-11 23:47:33,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:47:33,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 68 states and 131 transitions. [2023-11-11 23:47:33,886 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 131 transitions. [2023-11-11 23:47:33,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-11 23:47:33,886 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:47:33,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:47:33,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:47:33,939 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-11 23:47:34,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:47:34,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 69 states and 136 transitions. [2023-11-11 23:47:34,797 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 136 transitions. [2023-11-11 23:47:34,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-11 23:47:34,798 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:47:34,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:47:34,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:47:34,862 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-11 23:47:35,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-11 23:47:35,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 70 states and 139 transitions. [2023-11-11 23:47:35,696 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 139 transitions. [2023-11-11 23:47:35,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-11 23:47:35,697 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-11 23:47:35,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-11 23:47:35,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-11 23:47:38,669 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.