./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem04_label02.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_91fe127a-710b-4937-8397-bc5bca8ae677/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fe127a-710b-4937-8397-bc5bca8ae677/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fe127a-710b-4937-8397-bc5bca8ae677/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fe127a-710b-4937-8397-bc5bca8ae677/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem04_label02.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fe127a-710b-4937-8397-bc5bca8ae677/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fe127a-710b-4937-8397-bc5bca8ae677/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cb20d480563619876d446b8ad155ba0a84eb76fe763259416416c6259e3e8d76 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:38:54,845 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:38:54,970 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fe127a-710b-4937-8397-bc5bca8ae677/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 03:38:54,974 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:38:54,974 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:38:55,009 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:38:55,012 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:38:55,013 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:38:55,014 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:38:55,020 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:38:55,021 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:38:55,021 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:38:55,022 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:38:55,024 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:38:55,024 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:38:55,025 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:38:55,025 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:38:55,026 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:38:55,026 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:38:55,026 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:38:55,027 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:38:55,027 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:38:55,028 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:38:55,028 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:38:55,029 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:38:55,030 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:38:55,030 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:38:55,031 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:38:55,031 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:38:55,032 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:38:55,033 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:38:55,033 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:38:55,034 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:38:55,034 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_91fe127a-710b-4937-8397-bc5bca8ae677/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fe127a-710b-4937-8397-bc5bca8ae677/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb20d480563619876d446b8ad155ba0a84eb76fe763259416416c6259e3e8d76 [2023-11-19 03:38:55,381 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:38:55,420 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:38:55,423 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:38:55,424 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:38:55,424 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:38:55,425 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fe127a-710b-4937-8397-bc5bca8ae677/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/eca-rers2012/Problem04_label02.c [2023-11-19 03:38:58,668 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:38:59,354 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:38:59,355 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fe127a-710b-4937-8397-bc5bca8ae677/sv-benchmarks/c/eca-rers2012/Problem04_label02.c [2023-11-19 03:38:59,401 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fe127a-710b-4937-8397-bc5bca8ae677/bin/ukojak-verify-G8NBE6pJGL/data/64a4cbd69/c26f7e9ba8e24d8889917be420507164/FLAGbb36d6bc4 [2023-11-19 03:38:59,423 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fe127a-710b-4937-8397-bc5bca8ae677/bin/ukojak-verify-G8NBE6pJGL/data/64a4cbd69/c26f7e9ba8e24d8889917be420507164 [2023-11-19 03:38:59,430 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:38:59,432 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:38:59,436 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:38:59,436 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:38:59,442 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:38:59,443 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:38:59" (1/1) ... [2023-11-19 03:38:59,445 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ad7da09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:59, skipping insertion in model container [2023-11-19 03:38:59,446 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:38:59" (1/1) ... [2023-11-19 03:38:59,608 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:39:01,163 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fe127a-710b-4937-8397-bc5bca8ae677/sv-benchmarks/c/eca-rers2012/Problem04_label02.c[182644,182657] [2023-11-19 03:39:01,187 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:39:01,204 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:39:01,945 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fe127a-710b-4937-8397-bc5bca8ae677/sv-benchmarks/c/eca-rers2012/Problem04_label02.c[182644,182657] [2023-11-19 03:39:01,951 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:39:01,987 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:39:01,988 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:39:01 WrapperNode [2023-11-19 03:39:01,989 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:39:01,990 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:39:01,990 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:39:01,991 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:39:01,999 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:39:01" (1/1) ... [2023-11-19 03:39:02,079 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:39:01" (1/1) ... [2023-11-19 03:39:02,282 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 5573 [2023-11-19 03:39:02,283 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:39:02,283 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:39:02,284 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:39:02,284 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:39:02,295 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:39:01" (1/1) ... [2023-11-19 03:39:02,295 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:39:01" (1/1) ... [2023-11-19 03:39:02,315 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:39:01" (1/1) ... [2023-11-19 03:39:02,315 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:39:01" (1/1) ... [2023-11-19 03:39:02,499 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:39:01" (1/1) ... [2023-11-19 03:39:02,547 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:39:01" (1/1) ... [2023-11-19 03:39:02,563 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:39:01" (1/1) ... [2023-11-19 03:39:02,579 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:39:01" (1/1) ... [2023-11-19 03:39:02,607 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:39:02,608 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:39:02,608 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:39:02,609 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:39:02,610 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:39:01" (1/1) ... [2023-11-19 03:39:02,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:39:02,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fe127a-710b-4937-8397-bc5bca8ae677/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:39:02,660 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fe127a-710b-4937-8397-bc5bca8ae677/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:39:02,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91fe127a-710b-4937-8397-bc5bca8ae677/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:39:02,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:39:02,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:39:02,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:39:02,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:39:02,877 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:39:02,880 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:39:08,344 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:39:08,804 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:39:08,804 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 03:39:08,822 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:39:08 BoogieIcfgContainer [2023-11-19 03:39:08,822 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:39:08,823 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:39:08,823 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:39:08,835 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:39:08,836 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:39:08" (1/1) ... [2023-11-19 03:39:08,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:39:08,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:39:08,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1515 states to 763 states and 1515 transitions. [2023-11-19 03:39:08,939 INFO L276 IsEmpty]: Start isEmpty. Operand 763 states and 1515 transitions. [2023-11-19 03:39:08,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 756 [2023-11-19 03:39:08,978 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:39:08,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:39:09,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:39:14,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:39:21,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:39:21,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2269 states to 1516 states and 2269 transitions. [2023-11-19 03:39:21,116 INFO L276 IsEmpty]: Start isEmpty. Operand 1516 states and 2269 transitions. [2023-11-19 03:39:21,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 771 [2023-11-19 03:39:21,161 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:39:21,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:39:21,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:39:24,921 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:39:32,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:39:32,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3036 states to 2269 states and 3036 transitions. [2023-11-19 03:39:32,709 INFO L276 IsEmpty]: Start isEmpty. Operand 2269 states and 3036 transitions. [2023-11-19 03:39:32,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 778 [2023-11-19 03:39:32,720 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:39:32,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:39:33,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:39:33,879 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-19 03:39:42,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:39:42,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3826 states to 3043 states and 3826 transitions. [2023-11-19 03:39:42,368 INFO L276 IsEmpty]: Start isEmpty. Operand 3043 states and 3826 transitions. [2023-11-19 03:39:42,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 782 [2023-11-19 03:39:42,385 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:39:42,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:39:42,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat