./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem05_label37.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_7cdd99c3-3b37-4212-aee3-36b2672d27ea/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cdd99c3-3b37-4212-aee3-36b2672d27ea/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_7cdd99c3-3b37-4212-aee3-36b2672d27ea/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cdd99c3-3b37-4212-aee3-36b2672d27ea/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem05_label37.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cdd99c3-3b37-4212-aee3-36b2672d27ea/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_7cdd99c3-3b37-4212-aee3-36b2672d27ea/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 ad416ca6ed1127b35253a5749b88eafec3d19f1267a835799e82608815f6d9c0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:03:02,378 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:03:02,504 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cdd99c3-3b37-4212-aee3-36b2672d27ea/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 03:03:02,512 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:03:02,513 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:03:02,566 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:03:02,568 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:03:02,569 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:03:02,570 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:03:02,575 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:03:02,576 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:03:02,577 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:03:02,577 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:03:02,579 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:03:02,579 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:03:02,579 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:03:02,580 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:03:02,580 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:03:02,581 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:03:02,581 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:03:02,581 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:03:02,582 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:03:02,582 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:03:02,583 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:03:02,583 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:03:02,584 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:03:02,584 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:03:02,585 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:03:02,585 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:03:02,586 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:03:02,587 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:03:02,587 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:03:02,587 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:03:02,588 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_7cdd99c3-3b37-4212-aee3-36b2672d27ea/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cdd99c3-3b37-4212-aee3-36b2672d27ea/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad416ca6ed1127b35253a5749b88eafec3d19f1267a835799e82608815f6d9c0 [2023-11-19 03:03:02,903 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:03:02,934 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:03:02,937 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:03:02,938 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:03:02,939 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:03:02,940 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cdd99c3-3b37-4212-aee3-36b2672d27ea/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/eca-rers2012/Problem05_label37.c [2023-11-19 03:03:05,926 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:03:06,893 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:03:06,894 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cdd99c3-3b37-4212-aee3-36b2672d27ea/sv-benchmarks/c/eca-rers2012/Problem05_label37.c [2023-11-19 03:03:06,948 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cdd99c3-3b37-4212-aee3-36b2672d27ea/bin/ukojak-verify-G8NBE6pJGL/data/cc39e3ac2/c9bc7c6bb6de4d8f892b5118086973e9/FLAG96e99968d [2023-11-19 03:03:06,972 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cdd99c3-3b37-4212-aee3-36b2672d27ea/bin/ukojak-verify-G8NBE6pJGL/data/cc39e3ac2/c9bc7c6bb6de4d8f892b5118086973e9 [2023-11-19 03:03:06,977 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:03:06,979 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:03:06,982 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:03:06,982 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:03:06,987 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:03:06,988 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:03:06" (1/1) ... [2023-11-19 03:03:06,990 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d2aaf74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:03:06, skipping insertion in model container [2023-11-19 03:03:06,990 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:03:06" (1/1) ... [2023-11-19 03:03:07,318 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:03:09,623 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_7cdd99c3-3b37-4212-aee3-36b2672d27ea/sv-benchmarks/c/eca-rers2012/Problem05_label37.c[376044,376057] [2023-11-19 03:03:09,652 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:03:09,666 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:03:10,948 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_7cdd99c3-3b37-4212-aee3-36b2672d27ea/sv-benchmarks/c/eca-rers2012/Problem05_label37.c[376044,376057] [2023-11-19 03:03:10,958 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:03:11,023 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:03:11,023 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:03:11 WrapperNode [2023-11-19 03:03:11,024 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:03:11,025 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:03:11,025 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:03:11,025 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:03:11,034 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:03:11" (1/1) ... [2023-11-19 03:03:11,132 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:03:11" (1/1) ... [2023-11-19 03:03:11,806 INFO L138 Inliner]: procedures = 21, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 12347 [2023-11-19 03:03:11,819 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:03:11,820 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:03:11,820 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:03:11,821 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:03:11,836 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:03:11" (1/1) ... [2023-11-19 03:03:11,837 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:03:11" (1/1) ... [2023-11-19 03:03:11,902 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:03:11" (1/1) ... [2023-11-19 03:03:11,903 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:03:11" (1/1) ... [2023-11-19 03:03:12,204 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:03:11" (1/1) ... [2023-11-19 03:03:12,251 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:03:11" (1/1) ... [2023-11-19 03:03:12,272 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:03:11" (1/1) ... [2023-11-19 03:03:12,298 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:03:11" (1/1) ... [2023-11-19 03:03:12,352 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:03:12,353 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:03:12,353 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:03:12,353 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:03:12,354 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:03:11" (1/1) ... [2023-11-19 03:03:12,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:03:12,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cdd99c3-3b37-4212-aee3-36b2672d27ea/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:03:12,392 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cdd99c3-3b37-4212-aee3-36b2672d27ea/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:03:12,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cdd99c3-3b37-4212-aee3-36b2672d27ea/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:03:12,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:03:12,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:03:12,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:03:12,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:03:12,525 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:03:12,527 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:03:21,549 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:03:23,541 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:03:23,541 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 03:03:23,564 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:03:23 BoogieIcfgContainer [2023-11-19 03:03:23,564 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:03:23,565 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:03:23,566 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:03:23,576 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:03:23,576 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:03:23" (1/1) ... [2023-11-19 03:03:23,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:03:23,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:03:23,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3271 states to 1643 states and 3271 transitions. [2023-11-19 03:03:23,677 INFO L276 IsEmpty]: Start isEmpty. Operand 1643 states and 3271 transitions. [2023-11-19 03:03:23,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1632 [2023-11-19 03:03:23,797 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:03:23,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:03:24,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:03:29,230 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 03:03:40,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:03:40,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4948 states to 3272 states and 4948 transitions. [2023-11-19 03:03:40,458 INFO L276 IsEmpty]: Start isEmpty. Operand 3272 states and 4948 transitions. [2023-11-19 03:03:40,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1637 [2023-11-19 03:03:40,485 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:03:40,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:03:40,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:03:42,846 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:03:43,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:03:43,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4954 states to 3276 states and 4954 transitions. [2023-11-19 03:03:43,148 INFO L276 IsEmpty]: Start isEmpty. Operand 3276 states and 4954 transitions. [2023-11-19 03:03:43,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1639 [2023-11-19 03:03:43,178 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:03:43,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:03:43,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:03:45,845 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.