./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem06_label09.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_7163a090-555f-4902-a33d-849dca4cdbe1/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7163a090-555f-4902-a33d-849dca4cdbe1/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_7163a090-555f-4902-a33d-849dca4cdbe1/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7163a090-555f-4902-a33d-849dca4cdbe1/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem06_label09.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7163a090-555f-4902-a33d-849dca4cdbe1/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_7163a090-555f-4902-a33d-849dca4cdbe1/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 fea4c4d153da9ce1c01aee8ee3b35c90112a727b33ea93d23fad5696decdd800 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:08:39,997 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:08:40,096 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7163a090-555f-4902-a33d-849dca4cdbe1/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 04:08:40,101 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:08:40,102 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 04:08:40,136 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:08:40,142 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:08:40,144 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 04:08:40,145 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:08:40,147 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:08:40,149 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:08:40,150 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:08:40,151 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:08:40,154 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:08:40,154 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:08:40,155 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:08:40,157 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:08:40,162 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:08:40,163 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:08:40,164 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:08:40,164 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:08:40,165 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:08:40,165 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 04:08:40,166 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 04:08:40,167 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 04:08:40,167 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:08:40,168 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:08:40,169 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:08:40,170 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:08:40,170 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:08:40,172 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 04:08:40,172 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:08:40,173 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:08:40,173 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_7163a090-555f-4902-a33d-849dca4cdbe1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7163a090-555f-4902-a33d-849dca4cdbe1/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fea4c4d153da9ce1c01aee8ee3b35c90112a727b33ea93d23fad5696decdd800 [2023-11-19 04:08:40,524 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:08:40,569 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:08:40,572 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:08:40,574 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:08:40,574 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:08:40,576 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7163a090-555f-4902-a33d-849dca4cdbe1/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/eca-rers2012/Problem06_label09.c [2023-11-19 04:08:44,246 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:08:45,017 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:08:45,018 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7163a090-555f-4902-a33d-849dca4cdbe1/sv-benchmarks/c/eca-rers2012/Problem06_label09.c [2023-11-19 04:08:45,077 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7163a090-555f-4902-a33d-849dca4cdbe1/bin/ukojak-verify-G8NBE6pJGL/data/a7af7c00e/0bf5feca77d64932b7b769419080d268/FLAG6283f0508 [2023-11-19 04:08:45,095 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7163a090-555f-4902-a33d-849dca4cdbe1/bin/ukojak-verify-G8NBE6pJGL/data/a7af7c00e/0bf5feca77d64932b7b769419080d268 [2023-11-19 04:08:45,098 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:08:45,100 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:08:45,102 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:08:45,102 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:08:45,108 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:08:45,109 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:08:45" (1/1) ... [2023-11-19 04:08:45,111 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e623ec6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:08:45, skipping insertion in model container [2023-11-19 04:08:45,111 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:08:45" (1/1) ... [2023-11-19 04:08:45,470 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:08:47,901 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_7163a090-555f-4902-a33d-849dca4cdbe1/sv-benchmarks/c/eca-rers2012/Problem06_label09.c[332672,332685] [2023-11-19 04:08:47,928 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:08:47,942 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:08:49,241 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_7163a090-555f-4902-a33d-849dca4cdbe1/sv-benchmarks/c/eca-rers2012/Problem06_label09.c[332672,332685] [2023-11-19 04:08:49,255 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:08:49,331 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:08:49,332 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:08:49 WrapperNode [2023-11-19 04:08:49,332 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:08:49,334 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:08:49,334 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:08:49,334 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:08:49,344 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:08:49" (1/1) ... [2023-11-19 04:08:49,487 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:08:49" (1/1) ... [2023-11-19 04:08:49,964 INFO L138 Inliner]: procedures = 18, calls = 12, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 10174 [2023-11-19 04:08:49,965 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:08:49,965 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:08:49,966 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:08:49,966 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:08:49,978 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:08:49" (1/1) ... [2023-11-19 04:08:49,978 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:08:49" (1/1) ... [2023-11-19 04:08:50,045 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:08:49" (1/1) ... [2023-11-19 04:08:50,045 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:08:49" (1/1) ... [2023-11-19 04:08:50,467 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:08:49" (1/1) ... [2023-11-19 04:08:50,546 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:08:49" (1/1) ... [2023-11-19 04:08:50,588 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:08:49" (1/1) ... [2023-11-19 04:08:50,610 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:08:49" (1/1) ... [2023-11-19 04:08:50,689 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:08:50,690 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:08:50,691 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:08:50,691 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:08:50,692 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:08:49" (1/1) ... [2023-11-19 04:08:50,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:08:50,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7163a090-555f-4902-a33d-849dca4cdbe1/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 04:08:50,729 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7163a090-555f-4902-a33d-849dca4cdbe1/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 04:08:50,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7163a090-555f-4902-a33d-849dca4cdbe1/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 04:08:50,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:08:50,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:08:50,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:08:50,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:08:51,006 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:08:51,009 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:08:59,051 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:09:00,614 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:09:00,615 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:09:00,631 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:09:00 BoogieIcfgContainer [2023-11-19 04:09:00,631 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:09:00,633 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 04:09:00,633 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 04:09:00,643 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 04:09:00,644 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:09:00" (1/1) ... [2023-11-19 04:09:00,654 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:09:00,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:09:00,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1864 states to 938 states and 1864 transitions. [2023-11-19 04:09:00,766 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 1864 transitions. [2023-11-19 04:09:00,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 930 [2023-11-19 04:09:00,815 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:09:00,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:09:01,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:09:06,668 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 04:09:14,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:09:14,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2827 states to 1865 states and 2827 transitions. [2023-11-19 04:09:14,306 INFO L276 IsEmpty]: Start isEmpty. Operand 1865 states and 2827 transitions. [2023-11-19 04:09:14,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 939 [2023-11-19 04:09:14,340 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:09:14,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:09:14,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:09:17,688 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:09:18,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:09:18,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2837 states to 1873 states and 2837 transitions. [2023-11-19 04:09:18,357 INFO L276 IsEmpty]: Start isEmpty. Operand 1873 states and 2837 transitions. [2023-11-19 04:09:18,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 951 [2023-11-19 04:09:18,378 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:09:18,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:09:18,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:09:22,105 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:09:23,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:09:23,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2860 states to 1893 states and 2860 transitions. [2023-11-19 04:09:23,228 INFO L276 IsEmpty]: Start isEmpty. Operand 1893 states and 2860 transitions. [2023-11-19 04:09:23,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 957 [2023-11-19 04:09:23,244 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:09:23,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:09:23,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat