./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem04_label00.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_e38a02d1-ae7f-4f9f-8ee7-cfce892fe32b/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e38a02d1-ae7f-4f9f-8ee7-cfce892fe32b/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_e38a02d1-ae7f-4f9f-8ee7-cfce892fe32b/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e38a02d1-ae7f-4f9f-8ee7-cfce892fe32b/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem04_label00.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e38a02d1-ae7f-4f9f-8ee7-cfce892fe32b/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_e38a02d1-ae7f-4f9f-8ee7-cfce892fe32b/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 0bbaf24fe90164757ab3d6d8b1217d08e618a3587b60b708645efc0d4513b57a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:54:07,618 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:54:07,692 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e38a02d1-ae7f-4f9f-8ee7-cfce892fe32b/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 02:54:07,697 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 02:54:07,697 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 02:54:07,722 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:54:07,723 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 02:54:07,724 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 02:54:07,724 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:54:07,725 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:54:07,726 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:54:07,726 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:54:07,727 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 02:54:07,727 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 02:54:07,728 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 02:54:07,729 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:54:07,729 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:54:07,730 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:54:07,730 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:54:07,731 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 02:54:07,731 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:54:07,732 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:54:07,732 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:54:07,733 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:54:07,733 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:54:07,734 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:54:07,734 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:54:07,735 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:54:07,735 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:54:07,736 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 02:54:07,736 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 02:54:07,737 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 02:54:07,737 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 02:54:07,737 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_e38a02d1-ae7f-4f9f-8ee7-cfce892fe32b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e38a02d1-ae7f-4f9f-8ee7-cfce892fe32b/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0bbaf24fe90164757ab3d6d8b1217d08e618a3587b60b708645efc0d4513b57a [2023-11-19 02:54:08,004 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:54:08,030 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:54:08,033 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:54:08,036 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:54:08,036 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:54:08,038 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e38a02d1-ae7f-4f9f-8ee7-cfce892fe32b/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/eca-rers2012/Problem04_label00.c [2023-11-19 02:54:11,174 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:54:11,790 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:54:11,791 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e38a02d1-ae7f-4f9f-8ee7-cfce892fe32b/sv-benchmarks/c/eca-rers2012/Problem04_label00.c [2023-11-19 02:54:11,827 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e38a02d1-ae7f-4f9f-8ee7-cfce892fe32b/bin/ukojak-verify-G8NBE6pJGL/data/f17ebd0b8/782a2a3e208c4b2ba102c3fdbcb94244/FLAG0546b104e [2023-11-19 02:54:11,842 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e38a02d1-ae7f-4f9f-8ee7-cfce892fe32b/bin/ukojak-verify-G8NBE6pJGL/data/f17ebd0b8/782a2a3e208c4b2ba102c3fdbcb94244 [2023-11-19 02:54:11,845 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:54:11,847 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:54:11,848 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:54:11,848 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:54:11,853 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:54:11,854 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:54:11" (1/1) ... [2023-11-19 02:54:11,856 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43bc6c68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:11, skipping insertion in model container [2023-11-19 02:54:11,856 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:54:11" (1/1) ... [2023-11-19 02:54:12,021 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:54:13,557 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_e38a02d1-ae7f-4f9f-8ee7-cfce892fe32b/sv-benchmarks/c/eca-rers2012/Problem04_label00.c[182508,182521] [2023-11-19 02:54:13,589 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:54:13,603 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:54:14,242 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_e38a02d1-ae7f-4f9f-8ee7-cfce892fe32b/sv-benchmarks/c/eca-rers2012/Problem04_label00.c[182508,182521] [2023-11-19 02:54:14,248 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:54:14,279 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:54:14,280 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:14 WrapperNode [2023-11-19 02:54:14,280 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:54:14,282 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:54:14,282 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:54:14,282 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:54:14,291 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:14" (1/1) ... [2023-11-19 02:54:14,352 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:14" (1/1) ... [2023-11-19 02:54:14,539 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 5573 [2023-11-19 02:54:14,539 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:54:14,541 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:54:14,541 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:54:14,541 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:54:14,553 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:14" (1/1) ... [2023-11-19 02:54:14,553 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:14" (1/1) ... [2023-11-19 02:54:14,575 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:14" (1/1) ... [2023-11-19 02:54:14,575 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:14" (1/1) ... [2023-11-19 02:54:14,690 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:14" (1/1) ... [2023-11-19 02:54:14,739 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:14" (1/1) ... [2023-11-19 02:54:14,755 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:14" (1/1) ... [2023-11-19 02:54:14,771 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:14" (1/1) ... [2023-11-19 02:54:14,798 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:54:14,799 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:54:14,800 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:54:14,800 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:54:14,801 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:14" (1/1) ... [2023-11-19 02:54:14,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:54:14,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e38a02d1-ae7f-4f9f-8ee7-cfce892fe32b/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:54:14,841 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e38a02d1-ae7f-4f9f-8ee7-cfce892fe32b/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:54:14,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e38a02d1-ae7f-4f9f-8ee7-cfce892fe32b/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:54:14,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:54:14,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 02:54:14,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:54:14,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:54:15,011 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:54:15,014 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:54:20,315 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:54:20,672 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:54:20,672 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 02:54:20,683 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:54:20 BoogieIcfgContainer [2023-11-19 02:54:20,684 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:54:20,685 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:54:20,685 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:54:20,694 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:54:20,695 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:54:20" (1/1) ... [2023-11-19 02:54:20,704 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:54:20,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:54:20,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1515 states to 763 states and 1515 transitions. [2023-11-19 02:54:20,779 INFO L276 IsEmpty]: Start isEmpty. Operand 763 states and 1515 transitions. [2023-11-19 02:54:20,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 756 [2023-11-19 02:54:20,813 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:54:20,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:54:21,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:54:25,715 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 02:54:32,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:54:32,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2269 states to 1516 states and 2269 transitions. [2023-11-19 02:54:32,225 INFO L276 IsEmpty]: Start isEmpty. Operand 1516 states and 2269 transitions. [2023-11-19 02:54:32,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 771 [2023-11-19 02:54:32,257 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:54:32,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:54:32,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:54:35,130 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 02:54:42,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:54:42,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3036 states to 2269 states and 3036 transitions. [2023-11-19 02:54:42,784 INFO L276 IsEmpty]: Start isEmpty. Operand 2269 states and 3036 transitions. [2023-11-19 02:54:42,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 778 [2023-11-19 02:54:42,800 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:54:42,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:54:43,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:54:43,949 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 02:54:52,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:54:52,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3826 states to 3043 states and 3826 transitions. [2023-11-19 02:54:52,316 INFO L276 IsEmpty]: Start isEmpty. Operand 3043 states and 3826 transitions. [2023-11-19 02:54:52,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 782 [2023-11-19 02:54:52,328 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:54:52,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:54:52,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:54:53,666 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:54:54,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:54:54,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3832 states to 3047 states and 3832 transitions. [2023-11-19 02:54:54,319 INFO L276 IsEmpty]: Start isEmpty. Operand 3047 states and 3832 transitions. [2023-11-19 02:54:54,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 784 [2023-11-19 02:54:54,333 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:54:54,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:54:54,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat