./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-simple/dll2n_remove_all_reverse.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fcb28a1-019f-4407-a68a-cc1f7d3249e5/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fcb28a1-019f-4407-a68a-cc1f7d3249e5/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fcb28a1-019f-4407-a68a-cc1f7d3249e5/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fcb28a1-019f-4407-a68a-cc1f7d3249e5/bin/ukojak-verify-afCqCEvfdi/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-simple/dll2n_remove_all_reverse.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fcb28a1-019f-4407-a68a-cc1f7d3249e5/bin/ukojak-verify-afCqCEvfdi/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fcb28a1-019f-4407-a68a-cc1f7d3249e5/bin/ukojak-verify-afCqCEvfdi --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4d5c55d9a4a2ded389ff7ce077afdc88fb2d2855921e5fd1e3b93fbba7e140e8 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:11:26,811 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:11:26,888 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fcb28a1-019f-4407-a68a-cc1f7d3249e5/bin/ukojak-verify-afCqCEvfdi/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2023-11-24 22:11:26,894 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:11:26,895 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:11:26,922 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:11:26,924 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:11:26,924 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:11:26,925 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:11:26,926 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:11:26,926 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:11:26,927 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:11:26,927 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:11:26,928 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 22:11:26,928 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 22:11:26,929 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-24 22:11:26,929 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:11:26,930 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 22:11:26,930 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:11:26,931 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:11:26,931 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:11:26,932 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:11:26,932 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:11:26,933 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:11:26,933 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:11:26,934 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:11:26,934 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:11:26,935 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:11:26,935 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:11:26,935 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_3fcb28a1-019f-4407-a68a-cc1f7d3249e5/bin/ukojak-verify-afCqCEvfdi/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fcb28a1-019f-4407-a68a-cc1f7d3249e5/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d5c55d9a4a2ded389ff7ce077afdc88fb2d2855921e5fd1e3b93fbba7e140e8 [2023-11-24 22:11:27,339 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:11:27,373 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:11:27,375 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:11:27,377 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:11:27,378 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:11:27,379 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fcb28a1-019f-4407-a68a-cc1f7d3249e5/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/list-simple/dll2n_remove_all_reverse.i [2023-11-24 22:11:30,589 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:11:30,896 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:11:30,896 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fcb28a1-019f-4407-a68a-cc1f7d3249e5/sv-benchmarks/c/list-simple/dll2n_remove_all_reverse.i [2023-11-24 22:11:30,914 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fcb28a1-019f-4407-a68a-cc1f7d3249e5/bin/ukojak-verify-afCqCEvfdi/data/2ed07988c/d90c1eb30764439cb9d7c0e93f0e8392/FLAGd99d7b223 [2023-11-24 22:11:30,931 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fcb28a1-019f-4407-a68a-cc1f7d3249e5/bin/ukojak-verify-afCqCEvfdi/data/2ed07988c/d90c1eb30764439cb9d7c0e93f0e8392 [2023-11-24 22:11:30,934 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:11:30,935 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:11:30,941 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:11:30,943 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:11:30,948 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:11:30,952 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:11:30" (1/1) ... [2023-11-24 22:11:30,964 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@225b10fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:11:30, skipping insertion in model container [2023-11-24 22:11:30,965 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:11:30" (1/1) ... [2023-11-24 22:11:31,013 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:11:31,409 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:11:31,425 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:11:31,501 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:11:31,542 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:11:31,543 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:11:31 WrapperNode [2023-11-24 22:11:31,543 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:11:31,545 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:11:31,545 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:11:31,545 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:11:31,554 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:11:31" (1/1) ... [2023-11-24 22:11:31,591 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:11:31" (1/1) ... [2023-11-24 22:11:31,627 INFO L138 Inliner]: procedures = 126, calls = 36, calls flagged for inlining = 7, calls inlined = 6, statements flattened = 108 [2023-11-24 22:11:31,627 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:11:31,628 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:11:31,628 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:11:31,628 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:11:31,648 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:11:31" (1/1) ... [2023-11-24 22:11:31,648 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:11:31" (1/1) ... [2023-11-24 22:11:31,658 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:11:31" (1/1) ... [2023-11-24 22:11:31,666 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:11:31" (1/1) ... [2023-11-24 22:11:31,698 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:11:31" (1/1) ... [2023-11-24 22:11:31,712 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:11:31" (1/1) ... [2023-11-24 22:11:31,716 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:11:31" (1/1) ... [2023-11-24 22:11:31,718 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:11:31" (1/1) ... [2023-11-24 22:11:31,721 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:11:31,722 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:11:31,722 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:11:31,722 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:11:31,723 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:11:31" (1/1) ... [2023-11-24 22:11:31,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:11:31,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fcb28a1-019f-4407-a68a-cc1f7d3249e5/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:11:31,758 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fcb28a1-019f-4407-a68a-cc1f7d3249e5/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:11:31,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fcb28a1-019f-4407-a68a-cc1f7d3249e5/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:11:31,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 22:11:31,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 22:11:31,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:11:31,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 22:11:31,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-24 22:11:31,809 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-24 22:11:31,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 22:11:31,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-24 22:11:31,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 22:11:31,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:11:31,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:11:31,934 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:11:31,936 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:11:32,242 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:11:32,310 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:11:32,311 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-24 22:11:32,312 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:11:32 BoogieIcfgContainer [2023-11-24 22:11:32,312 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:11:32,313 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:11:32,313 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:11:32,323 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:11:32,323 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:11:32" (1/1) ... [2023-11-24 22:11:32,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:11:32,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:32,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 69 states and 77 transitions. [2023-11-24 22:11:32,386 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 77 transitions. [2023-11-24 22:11:32,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-24 22:11:32,388 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:32,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:11:32,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:32,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:11:32,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:32,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 70 states and 79 transitions. [2023-11-24 22:11:32,684 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 79 transitions. [2023-11-24 22:11:32,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-24 22:11:32,685 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:32,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:11:32,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:32,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:11:32,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:32,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 69 states and 78 transitions. [2023-11-24 22:11:32,899 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 78 transitions. [2023-11-24 22:11:32,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-24 22:11:32,900 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:32,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:11:32,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:33,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:11:33,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:33,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 68 states and 77 transitions. [2023-11-24 22:11:33,153 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 77 transitions. [2023-11-24 22:11:33,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-24 22:11:33,154 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:33,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:11:33,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:33,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:11:33,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:33,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 67 states and 76 transitions. [2023-11-24 22:11:33,241 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 76 transitions. [2023-11-24 22:11:33,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-24 22:11:33,242 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:33,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:11:33,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:33,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:11:33,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:33,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 66 states and 75 transitions. [2023-11-24 22:11:33,522 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 75 transitions. [2023-11-24 22:11:33,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 22:11:33,523 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:33,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:11:33,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:33,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:11:33,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:33,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 65 states and 74 transitions. [2023-11-24 22:11:33,570 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 74 transitions. [2023-11-24 22:11:33,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 22:11:33,570 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:33,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:11:33,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:33,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:11:33,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:33,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 64 states and 73 transitions. [2023-11-24 22:11:33,654 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 73 transitions. [2023-11-24 22:11:33,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-24 22:11:33,654 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:33,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:11:33,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:33,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:11:34,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:34,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 70 states and 81 transitions. [2023-11-24 22:11:34,118 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 81 transitions. [2023-11-24 22:11:34,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-24 22:11:34,118 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:34,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:11:34,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:34,227 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:11:34,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:34,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 77 states and 90 transitions. [2023-11-24 22:11:34,709 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 90 transitions. [2023-11-24 22:11:34,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-24 22:11:34,713 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:34,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:11:34,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:35,025 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:11:36,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:36,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 85 states and 104 transitions. [2023-11-24 22:11:36,046 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 104 transitions. [2023-11-24 22:11:36,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-24 22:11:36,047 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:36,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:11:36,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:36,338 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:11:37,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:37,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 93 states and 121 transitions. [2023-11-24 22:11:37,752 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 121 transitions. [2023-11-24 22:11:37,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-24 22:11:37,753 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:37,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:11:37,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:37,949 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:11:38,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:38,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 95 states and 124 transitions. [2023-11-24 22:11:38,824 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 124 transitions. [2023-11-24 22:11:38,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-24 22:11:38,825 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:38,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:11:38,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:39,082 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 22:11:41,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:41,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 112 states and 161 transitions. [2023-11-24 22:11:41,952 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 161 transitions. [2023-11-24 22:11:41,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-24 22:11:41,953 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:41,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:11:41,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:42,596 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 22:11:46,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:46,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 130 states and 202 transitions. [2023-11-24 22:11:46,843 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 202 transitions. [2023-11-24 22:11:46,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-24 22:11:46,844 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:46,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:11:46,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:47,827 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:11:54,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:54,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 148 states and 249 transitions. [2023-11-24 22:11:54,129 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 249 transitions. [2023-11-24 22:11:54,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-24 22:11:54,130 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:54,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:11:54,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:54,628 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-24 22:11:58,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:58,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 153 states and 262 transitions. [2023-11-24 22:11:58,027 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 262 transitions. [2023-11-24 22:11:58,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-24 22:11:58,029 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:58,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:11:58,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:59,054 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 22:12:04,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:12:04,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 158 states and 279 transitions. [2023-11-24 22:12:04,513 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 279 transitions. [2023-11-24 22:12:04,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-24 22:12:04,514 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:12:04,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:12:04,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:12:04,570 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-24 22:12:05,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:12:05,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 160 states and 283 transitions. [2023-11-24 22:12:05,234 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 283 transitions. [2023-11-24 22:12:05,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-24 22:12:05,235 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:12:05,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:12:05,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:12:05,762 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-24 22:12:06,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:12:06,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 163 states and 288 transitions. [2023-11-24 22:12:06,915 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 288 transitions. [2023-11-24 22:12:06,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-24 22:12:06,916 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:12:06,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:12:06,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:12:06,974 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-24 22:12:07,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:12:07,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 164 states and 289 transitions. [2023-11-24 22:12:07,001 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 289 transitions. [2023-11-24 22:12:07,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-24 22:12:07,002 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:12:07,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:12:07,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:12:07,086 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-24 22:12:07,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:12:07,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 165 states and 290 transitions. [2023-11-24 22:12:07,116 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 290 transitions. [2023-11-24 22:12:07,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-24 22:12:07,118 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:12:07,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:12:07,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:12:07,587 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-24 22:12:08,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:12:08,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 168 states and 296 transitions. [2023-11-24 22:12:08,865 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 296 transitions. [2023-11-24 22:12:08,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-24 22:12:08,866 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:12:08,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:12:08,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:12:09,689 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 22:12:11,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:12:11,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 171 states and 303 transitions. [2023-11-24 22:12:11,745 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 303 transitions. [2023-11-24 22:12:11,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-24 22:12:11,746 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:12:11,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:12:11,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:12:12,835 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 22:12:14,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:12:14,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 173 states and 307 transitions. [2023-11-24 22:12:14,500 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 307 transitions. [2023-11-24 22:12:14,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-24 22:12:14,501 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:12:14,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:12:14,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:12:14,795 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:12:18,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:12:18,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 95 states and 125 transitions. [2023-11-24 22:12:18,474 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 125 transitions. [2023-11-24 22:12:18,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-24 22:12:18,474 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:12:18,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:12:18,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:12:19,882 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.