./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem04_label07.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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_af3c883d-9564-4ce0-9783-205f06866905/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3c883d-9564-4ce0-9783-205f06866905/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_af3c883d-9564-4ce0-9783-205f06866905/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3c883d-9564-4ce0-9783-205f06866905/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem04_label07.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3c883d-9564-4ce0-9783-205f06866905/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3c883d-9564-4ce0-9783-205f06866905/bin/ukojak-verify-afCqCEvfdi --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 5782a009f5c08bd5fd65597240c423b2cdfc5ecfa29bda99c49e99d44c3a90c6 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:16:24,123 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:16:24,263 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3c883d-9564-4ce0-9783-205f06866905/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-24 22:16:24,271 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:16:24,272 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:16:24,300 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:16:24,301 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:16:24,302 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:16:24,303 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:16:24,303 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:16:24,304 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:16:24,305 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:16:24,305 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:16:24,306 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:16:24,307 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:16:24,307 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:16:24,308 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:16:24,309 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:16:24,309 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:16:24,310 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:16:24,311 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:16:24,311 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:16:24,312 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:16:24,313 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:16:24,313 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:16:24,314 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:16:24,314 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:16:24,315 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:16:24,316 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:16:24,316 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:16:24,317 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:16:24,317 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:16:24,317 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:16:24,318 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_af3c883d-9564-4ce0-9783-205f06866905/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3c883d-9564-4ce0-9783-205f06866905/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5782a009f5c08bd5fd65597240c423b2cdfc5ecfa29bda99c49e99d44c3a90c6 [2023-11-24 22:16:24,627 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:16:24,658 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:16:24,661 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:16:24,662 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:16:24,663 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:16:24,664 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3c883d-9564-4ce0-9783-205f06866905/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/eca-rers2012/Problem04_label07.c [2023-11-24 22:16:27,885 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:16:28,520 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:16:28,521 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3c883d-9564-4ce0-9783-205f06866905/sv-benchmarks/c/eca-rers2012/Problem04_label07.c [2023-11-24 22:16:28,558 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3c883d-9564-4ce0-9783-205f06866905/bin/ukojak-verify-afCqCEvfdi/data/e631c2eb5/ab286ed4cfa9465492284d70eb4725ed/FLAGe00142e6f [2023-11-24 22:16:28,575 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3c883d-9564-4ce0-9783-205f06866905/bin/ukojak-verify-afCqCEvfdi/data/e631c2eb5/ab286ed4cfa9465492284d70eb4725ed [2023-11-24 22:16:28,581 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:16:28,582 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:16:28,586 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:16:28,587 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:16:28,592 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:16:28,595 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:16:28" (1/1) ... [2023-11-24 22:16:28,597 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@494ee80e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:28, skipping insertion in model container [2023-11-24 22:16:28,597 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:16:28" (1/1) ... [2023-11-24 22:16:28,833 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:16:30,403 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_af3c883d-9564-4ce0-9783-205f06866905/sv-benchmarks/c/eca-rers2012/Problem04_label07.c[180871,180884] [2023-11-24 22:16:30,430 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:16:30,448 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:16:31,125 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_af3c883d-9564-4ce0-9783-205f06866905/sv-benchmarks/c/eca-rers2012/Problem04_label07.c[180871,180884] [2023-11-24 22:16:31,134 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:16:31,166 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:16:31,167 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:31 WrapperNode [2023-11-24 22:16:31,167 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:16:31,168 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:16:31,168 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:16:31,169 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:16:31,176 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:31" (1/1) ... [2023-11-24 22:16:31,239 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:31" (1/1) ... [2023-11-24 22:16:31,419 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 5573 [2023-11-24 22:16:31,420 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:16:31,420 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:16:31,421 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:16:31,421 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:16:31,430 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:31" (1/1) ... [2023-11-24 22:16:31,431 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:31" (1/1) ... [2023-11-24 22:16:31,448 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:31" (1/1) ... [2023-11-24 22:16:31,448 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:31" (1/1) ... [2023-11-24 22:16:31,565 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:31" (1/1) ... [2023-11-24 22:16:31,610 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:31" (1/1) ... [2023-11-24 22:16:31,654 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:31" (1/1) ... [2023-11-24 22:16:31,670 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:31" (1/1) ... [2023-11-24 22:16:31,694 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:16:31,696 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:16:31,696 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:16:31,696 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:16:31,697 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:31" (1/1) ... [2023-11-24 22:16:31,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:16:31,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3c883d-9564-4ce0-9783-205f06866905/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:16:31,817 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3c883d-9564-4ce0-9783-205f06866905/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:16:31,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af3c883d-9564-4ce0-9783-205f06866905/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:16:31,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:16:31,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 22:16:31,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:16:31,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:16:32,032 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:16:32,038 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:16:37,265 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:16:37,704 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:16:37,704 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 22:16:37,707 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:16:37 BoogieIcfgContainer [2023-11-24 22:16:37,707 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:16:37,708 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:16:37,709 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:16:37,721 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:16:37,721 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:16:37" (1/1) ... [2023-11-24 22:16:37,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:16:37,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:16:37,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1515 states to 763 states and 1515 transitions. [2023-11-24 22:16:37,852 INFO L276 IsEmpty]: Start isEmpty. Operand 763 states and 1515 transitions. [2023-11-24 22:16:37,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 756 [2023-11-24 22:16:37,899 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:16:37,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:16:38,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:16:42,173 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 22:16:48,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:16:48,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2269 states to 1516 states and 2269 transitions. [2023-11-24 22:16:48,473 INFO L276 IsEmpty]: Start isEmpty. Operand 1516 states and 2269 transitions. [2023-11-24 22:16:48,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 771 [2023-11-24 22:16:48,496 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:16:48,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:16:48,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:16:51,477 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:16:59,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:16:59,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3036 states to 2269 states and 3036 transitions. [2023-11-24 22:16:59,559 INFO L276 IsEmpty]: Start isEmpty. Operand 2269 states and 3036 transitions. [2023-11-24 22:16:59,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 778 [2023-11-24 22:16:59,588 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:16:59,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:16:59,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:17:01,104 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:17:08,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:17:08,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4339 states to 3023 states and 4339 transitions. [2023-11-24 22:17:08,733 INFO L276 IsEmpty]: Start isEmpty. Operand 3023 states and 4339 transitions. [2023-11-24 22:17:08,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 782 [2023-11-24 22:17:08,760 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:17:08,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:17:08,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:17:10,406 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:17:11,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:17:11,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4345 states to 3027 states and 4345 transitions. [2023-11-24 22:17:11,134 INFO L276 IsEmpty]: Start isEmpty. Operand 3027 states and 4345 transitions. [2023-11-24 22:17:11,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 784 [2023-11-24 22:17:11,150 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:17:11,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:17:11,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat