./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label51.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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_a10eef27-cd2b-4305-9833-d9cc936f52e2/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10eef27-cd2b-4305-9833-d9cc936f52e2/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_a10eef27-cd2b-4305-9833-d9cc936f52e2/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10eef27-cd2b-4305-9833-d9cc936f52e2/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label51.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10eef27-cd2b-4305-9833-d9cc936f52e2/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_a10eef27-cd2b-4305-9833-d9cc936f52e2/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 d1cc78894862a8232926a266f0e84c32d40ba4c1c811df274fffc61517c63c36 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:19:46,495 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:19:46,621 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10eef27-cd2b-4305-9833-d9cc936f52e2/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-24 22:19:46,632 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:19:46,632 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:19:46,678 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:19:46,679 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:19:46,679 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:19:46,680 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:19:46,687 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:19:46,689 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:19:46,689 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:19:46,690 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:19:46,692 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:19:46,692 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:19:46,693 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:19:46,693 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:19:46,693 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:19:46,694 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:19:46,694 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:19:46,695 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:19:46,695 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:19:46,696 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:19:46,696 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:19:46,697 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:19:46,697 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:19:46,698 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:19:46,698 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:19:46,698 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:19:46,699 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:19:46,700 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:19:46,700 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:19:46,701 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:19:46,701 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_a10eef27-cd2b-4305-9833-d9cc936f52e2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10eef27-cd2b-4305-9833-d9cc936f52e2/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d1cc78894862a8232926a266f0e84c32d40ba4c1c811df274fffc61517c63c36 [2023-11-24 22:19:46,969 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:19:47,006 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:19:47,009 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:19:47,010 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:19:47,011 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:19:47,012 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10eef27-cd2b-4305-9833-d9cc936f52e2/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/eca-rers2012/Problem10_label51.c [2023-11-24 22:19:50,086 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:19:50,418 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:19:50,432 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10eef27-cd2b-4305-9833-d9cc936f52e2/sv-benchmarks/c/eca-rers2012/Problem10_label51.c [2023-11-24 22:19:50,460 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10eef27-cd2b-4305-9833-d9cc936f52e2/bin/ukojak-verify-afCqCEvfdi/data/55159557b/6cb1788c058744fbbbd0a64a3195506c/FLAGefc81ddd0 [2023-11-24 22:19:50,477 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10eef27-cd2b-4305-9833-d9cc936f52e2/bin/ukojak-verify-afCqCEvfdi/data/55159557b/6cb1788c058744fbbbd0a64a3195506c [2023-11-24 22:19:50,480 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:19:50,482 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:19:50,483 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:19:50,483 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:19:50,489 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:19:50,492 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:19:50" (1/1) ... [2023-11-24 22:19:50,494 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b9da6e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:19:50, skipping insertion in model container [2023-11-24 22:19:50,494 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:19:50" (1/1) ... [2023-11-24 22:19:50,560 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:19:50,790 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_a10eef27-cd2b-4305-9833-d9cc936f52e2/sv-benchmarks/c/eca-rers2012/Problem10_label51.c[5763,5776] [2023-11-24 22:19:50,971 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:19:50,989 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:19:51,055 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_a10eef27-cd2b-4305-9833-d9cc936f52e2/sv-benchmarks/c/eca-rers2012/Problem10_label51.c[5763,5776] [2023-11-24 22:19:51,161 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:19:51,177 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:19:51,178 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:19:51 WrapperNode [2023-11-24 22:19:51,178 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:19:51,179 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:19:51,180 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:19:51,180 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:19:51,189 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:19:51" (1/1) ... [2023-11-24 22:19:51,209 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:19:51" (1/1) ... [2023-11-24 22:19:51,293 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 598 [2023-11-24 22:19:51,294 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:19:51,295 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:19:51,295 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:19:51,295 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:19:51,312 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:19:51" (1/1) ... [2023-11-24 22:19:51,312 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:19:51" (1/1) ... [2023-11-24 22:19:51,337 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:19:51" (1/1) ... [2023-11-24 22:19:51,338 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:19:51" (1/1) ... [2023-11-24 22:19:51,402 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:19:51" (1/1) ... [2023-11-24 22:19:51,410 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:19:51" (1/1) ... [2023-11-24 22:19:51,421 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:19:51" (1/1) ... [2023-11-24 22:19:51,439 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:19:51" (1/1) ... [2023-11-24 22:19:51,464 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:19:51,465 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:19:51,465 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:19:51,465 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:19:51,466 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:19:51" (1/1) ... [2023-11-24 22:19:51,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:19:51,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10eef27-cd2b-4305-9833-d9cc936f52e2/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:19:51,521 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10eef27-cd2b-4305-9833-d9cc936f52e2/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:19:51,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10eef27-cd2b-4305-9833-d9cc936f52e2/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:19:51,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:19:51,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 22:19:51,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:19:51,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:19:51,643 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:19:51,645 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:19:53,002 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:19:56,379 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:19:56,379 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 22:19:56,381 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:19:56 BoogieIcfgContainer [2023-11-24 22:19:56,382 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:19:56,383 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:19:56,383 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:19:56,393 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:19:56,394 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:19:56" (1/1) ... [2023-11-24 22:19:56,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:19:56,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:19:56,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2023-11-24 22:19:56,477 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2023-11-24 22:19:56,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-24 22:19:56,480 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:19:56,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:19:56,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:19:56,913 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 22:19:57,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:19:57,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 12 states and 15 transitions. [2023-11-24 22:19:57,141 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2023-11-24 22:19:57,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-24 22:19:57,142 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:19:57,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:19:57,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:20:11,727 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:20:12,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:20:12,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 19 states and 30 transitions. [2023-11-24 22:20:12,441 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 30 transitions. [2023-11-24 22:20:12,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-24 22:20:12,444 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:20:12,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:20:12,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:20:26,511 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:20:27,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:20:27,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 26 states and 47 transitions. [2023-11-24 22:20:27,812 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 47 transitions. [2023-11-24 22:20:27,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-24 22:20:27,813 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:20:27,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:20:27,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat