./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/substring-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646f7416-93d4-4f9a-b69b-ccb7da5cf4e9/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646f7416-93d4-4f9a-b69b-ccb7da5cf4e9/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_646f7416-93d4-4f9a-b69b-ccb7da5cf4e9/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646f7416-93d4-4f9a-b69b-ccb7da5cf4e9/bin/ukojak-verify-afCqCEvfdi/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/substring-alloca-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646f7416-93d4-4f9a-b69b-ccb7da5cf4e9/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_646f7416-93d4-4f9a-b69b-ccb7da5cf4e9/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 4cb6276eff0c60579b1d5f7034948eb4f53891709ff48cdd11b3329ec3c4cc2e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:01:05,048 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:01:05,162 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646f7416-93d4-4f9a-b69b-ccb7da5cf4e9/bin/ukojak-verify-afCqCEvfdi/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2023-11-24 23:01:05,171 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:01:05,172 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 23:01:05,213 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:01:05,215 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:01:05,216 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:01:05,217 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:01:05,222 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:01:05,223 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:01:05,224 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:01:05,224 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:01:05,226 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 23:01:05,226 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 23:01:05,227 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-24 23:01:05,227 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:01:05,227 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:01:05,228 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:01:05,228 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:01:05,229 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 23:01:05,229 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 23:01:05,230 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 23:01:05,230 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:01:05,231 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:01:05,231 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:01:05,232 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:01:05,232 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 23:01:05,233 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:01:05,233 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_646f7416-93d4-4f9a-b69b-ccb7da5cf4e9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646f7416-93d4-4f9a-b69b-ccb7da5cf4e9/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4cb6276eff0c60579b1d5f7034948eb4f53891709ff48cdd11b3329ec3c4cc2e [2023-11-24 23:01:05,529 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:01:05,563 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:01:05,566 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:01:05,567 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:01:05,568 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:01:05,569 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646f7416-93d4-4f9a-b69b-ccb7da5cf4e9/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/array-memsafety/substring-alloca-2.i [2023-11-24 23:01:08,801 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:01:09,056 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:01:09,063 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646f7416-93d4-4f9a-b69b-ccb7da5cf4e9/sv-benchmarks/c/array-memsafety/substring-alloca-2.i [2023-11-24 23:01:09,079 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646f7416-93d4-4f9a-b69b-ccb7da5cf4e9/bin/ukojak-verify-afCqCEvfdi/data/310439b0e/5b801a08bb084231a18a99bcbc7b4c94/FLAG60f5e524b [2023-11-24 23:01:09,096 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646f7416-93d4-4f9a-b69b-ccb7da5cf4e9/bin/ukojak-verify-afCqCEvfdi/data/310439b0e/5b801a08bb084231a18a99bcbc7b4c94 [2023-11-24 23:01:09,099 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:01:09,101 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:01:09,103 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:01:09,103 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:01:09,109 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:01:09,109 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:01:09" (1/1) ... [2023-11-24 23:01:09,111 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2164bea9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:01:09, skipping insertion in model container [2023-11-24 23:01:09,111 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:01:09" (1/1) ... [2023-11-24 23:01:09,163 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:01:09,542 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:01:09,559 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:01:09,644 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:01:09,677 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:01:09,677 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:01:09 WrapperNode [2023-11-24 23:01:09,678 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:01:09,679 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:01:09,679 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:01:09,679 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:01:09,688 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:01:09" (1/1) ... [2023-11-24 23:01:09,708 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:01:09" (1/1) ... [2023-11-24 23:01:09,745 INFO L138 Inliner]: procedures = 117, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 109 [2023-11-24 23:01:09,745 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:01:09,746 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:01:09,746 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:01:09,747 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:01:09,756 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:01:09" (1/1) ... [2023-11-24 23:01:09,756 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:01:09" (1/1) ... [2023-11-24 23:01:09,774 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:01:09" (1/1) ... [2023-11-24 23:01:09,776 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:01:09" (1/1) ... [2023-11-24 23:01:09,782 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:01:09" (1/1) ... [2023-11-24 23:01:09,796 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:01:09" (1/1) ... [2023-11-24 23:01:09,798 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:01:09" (1/1) ... [2023-11-24 23:01:09,804 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:01:09" (1/1) ... [2023-11-24 23:01:09,807 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:01:09,808 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:01:09,808 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:01:09,809 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:01:09,810 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:01:09" (1/1) ... [2023-11-24 23:01:09,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:01:09,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646f7416-93d4-4f9a-b69b-ccb7da5cf4e9/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 23:01:09,853 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646f7416-93d4-4f9a-b69b-ccb7da5cf4e9/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 23:01:09,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_646f7416-93d4-4f9a-b69b-ccb7da5cf4e9/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 23:01:09,894 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:01:09,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:01:09,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:01:09,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:01:09,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:01:09,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:01:10,011 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:01:10,013 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:01:10,387 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:01:10,452 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:01:10,452 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-24 23:01:10,454 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:01:10 BoogieIcfgContainer [2023-11-24 23:01:10,454 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:01:10,455 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 23:01:10,456 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 23:01:10,467 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 23:01:10,467 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:01:10" (1/1) ... [2023-11-24 23:01:10,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:01:10,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:01:10,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 39 states and 46 transitions. [2023-11-24 23:01:10,535 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 46 transitions. [2023-11-24 23:01:10,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-24 23:01:10,538 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:01:10,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:01:10,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:01:11,046 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 23:01:11,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:01:11,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 38 states and 45 transitions. [2023-11-24 23:01:11,100 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2023-11-24 23:01:11,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-24 23:01:11,102 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:01:11,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:01:11,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:01:11,393 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 23:01:11,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:01:11,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 40 states and 49 transitions. [2023-11-24 23:01:11,702 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 49 transitions. [2023-11-24 23:01:11,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-24 23:01:11,703 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:01:11,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:01:11,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:01:11,813 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 23:01:11,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:01:11,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 42 states and 53 transitions. [2023-11-24 23:01:11,845 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 53 transitions. [2023-11-24 23:01:11,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-24 23:01:11,848 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:01:11,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:01:11,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:01:12,232 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 23:01:12,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:01:12,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 44 states and 58 transitions. [2023-11-24 23:01:12,760 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 58 transitions. [2023-11-24 23:01:12,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-24 23:01:12,760 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:01:12,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:01:12,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:01:12,831 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 23:01:13,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:01:13,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 46 states and 64 transitions. [2023-11-24 23:01:13,350 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 64 transitions. [2023-11-24 23:01:13,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-24 23:01:13,351 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:01:13,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:01:13,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:01:13,729 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 23:01:14,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:01:14,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 48 states and 73 transitions. [2023-11-24 23:01:14,870 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 73 transitions. [2023-11-24 23:01:14,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-24 23:01:14,871 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:01:14,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:01:14,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:01:14,902 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 23:01:14,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:01:14,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 50 states and 76 transitions. [2023-11-24 23:01:14,940 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 76 transitions. [2023-11-24 23:01:14,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-24 23:01:14,941 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:01:14,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:01:14,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:01:15,378 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 23:01:17,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:01:17,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 53 states and 82 transitions. [2023-11-24 23:01:17,441 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 82 transitions. [2023-11-24 23:01:17,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-24 23:01:17,442 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:01:17,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:01:17,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:01:17,907 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:01:19,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:01:19,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 56 states and 93 transitions. [2023-11-24 23:01:19,522 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 93 transitions. [2023-11-24 23:01:19,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 23:01:19,523 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:01:19,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:01:19,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:01:19,637 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 23:01:20,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:01:20,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 57 states and 95 transitions. [2023-11-24 23:01:20,109 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 95 transitions. [2023-11-24 23:01:20,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 23:01:20,110 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:01:20,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:01:20,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:01:20,437 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 23:01:22,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:01:22,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 61 states and 106 transitions. [2023-11-24 23:01:22,656 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 106 transitions. [2023-11-24 23:01:22,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 23:01:22,657 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:01:22,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:01:22,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:01:22,824 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:01:23,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:01:23,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 62 states and 106 transitions. [2023-11-24 23:01:23,290 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 106 transitions. [2023-11-24 23:01:23,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 23:01:23,291 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:01:23,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:01:23,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:01:23,769 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 23:01:24,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:01:24,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 63 states and 108 transitions. [2023-11-24 23:01:24,631 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 108 transitions. [2023-11-24 23:01:24,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 23:01:24,632 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:01:24,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:01:24,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:01:25,349 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:01:29,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:01:29,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 67 states and 123 transitions. [2023-11-24 23:01:29,152 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 123 transitions. [2023-11-24 23:01:29,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 23:01:29,153 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:01:29,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:01:29,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:01:29,304 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 23:01:30,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:01:30,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 68 states and 128 transitions. [2023-11-24 23:01:30,599 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 128 transitions. [2023-11-24 23:01:30,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 23:01:30,600 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:01:30,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:01:30,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:01:31,434 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 23:01:33,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:01:33,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 69 states and 135 transitions. [2023-11-24 23:01:33,764 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 135 transitions. [2023-11-24 23:01:33,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 23:01:33,765 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:01:33,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:01:33,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:01:33,793 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 23:01:35,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:01:35,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 70 states and 138 transitions. [2023-11-24 23:01:35,175 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 138 transitions. [2023-11-24 23:01:35,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 23:01:35,176 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:01:35,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:01:35,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:01:36,453 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 23:01:40,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:01:40,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 73 states and 149 transitions. [2023-11-24 23:01:40,654 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 149 transitions. [2023-11-24 23:01:40,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 23:01:40,655 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:01:40,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:01:40,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:01:40,795 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 23:01:42,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:01:42,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 74 states and 152 transitions. [2023-11-24 23:01:42,527 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 152 transitions. [2023-11-24 23:01:42,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 23:01:42,529 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:01:42,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:01:42,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:01:43,500 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 23:01:46,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:01:46,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 71 states and 142 transitions. [2023-11-24 23:01:46,082 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 142 transitions. [2023-11-24 23:01:46,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-24 23:01:46,083 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:01:46,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:01:46,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:01:46,553 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 23:01:47,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:01:47,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 74 states and 148 transitions. [2023-11-24 23:01:47,555 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 148 transitions. [2023-11-24 23:01:47,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-24 23:01:47,556 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:01:47,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:01:47,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:01:48,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:01:50,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:01:50,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 77 states and 156 transitions. [2023-11-24 23:01:50,767 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 156 transitions. [2023-11-24 23:01:50,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-24 23:01:50,768 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:01:50,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:01:50,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:01:51,527 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 23:01:55,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:01:55,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 81 states and 170 transitions. [2023-11-24 23:01:55,687 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 170 transitions. [2023-11-24 23:01:55,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-24 23:01:55,688 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:01:55,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:01:55,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:01:55,740 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 23:01:56,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:01:56,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 82 states and 170 transitions. [2023-11-24 23:01:56,367 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 170 transitions. [2023-11-24 23:01:56,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-24 23:01:56,368 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:01:56,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:01:56,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:01:57,334 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 23:02:00,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:02:00,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 83 states and 172 transitions. [2023-11-24 23:02:00,159 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 172 transitions. [2023-11-24 23:02:00,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-24 23:02:00,160 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:02:00,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:02:00,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:02:00,306 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.