./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem06_label24.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_3c47df89-c671-4349-a682-20274e14e90d/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c47df89-c671-4349-a682-20274e14e90d/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_3c47df89-c671-4349-a682-20274e14e90d/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c47df89-c671-4349-a682-20274e14e90d/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem06_label24.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c47df89-c671-4349-a682-20274e14e90d/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_3c47df89-c671-4349-a682-20274e14e90d/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 45de0a529b41fa9e4dc420b91fa75a1f70b718847ae5b4cb096cec14d6e9ffb9 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:51:15,316 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:51:15,418 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c47df89-c671-4349-a682-20274e14e90d/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-24 22:51:15,423 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:51:15,427 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:51:15,479 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:51:15,480 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:51:15,481 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:51:15,482 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:51:15,489 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:51:15,490 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:51:15,490 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:51:15,491 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:51:15,493 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:51:15,493 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:51:15,494 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:51:15,494 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:51:15,494 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:51:15,495 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:51:15,496 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:51:15,496 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:51:15,497 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:51:15,498 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:51:15,498 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:51:15,499 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:51:15,499 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:51:15,500 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:51:15,500 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:51:15,501 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:51:15,501 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:51:15,502 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:51:15,503 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:51:15,503 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:51:15,503 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_3c47df89-c671-4349-a682-20274e14e90d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c47df89-c671-4349-a682-20274e14e90d/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45de0a529b41fa9e4dc420b91fa75a1f70b718847ae5b4cb096cec14d6e9ffb9 [2023-11-24 22:51:15,796 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:51:15,830 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:51:15,833 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:51:15,834 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:51:15,835 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:51:15,837 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c47df89-c671-4349-a682-20274e14e90d/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/eca-rers2012/Problem06_label24.c [2023-11-24 22:51:19,026 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:51:19,738 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:51:19,739 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c47df89-c671-4349-a682-20274e14e90d/sv-benchmarks/c/eca-rers2012/Problem06_label24.c [2023-11-24 22:51:19,790 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c47df89-c671-4349-a682-20274e14e90d/bin/ukojak-verify-afCqCEvfdi/data/bc26a4bab/839d6b52ee7f466a8502e5ef6aa41ad9/FLAG73362a19a [2023-11-24 22:51:19,810 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c47df89-c671-4349-a682-20274e14e90d/bin/ukojak-verify-afCqCEvfdi/data/bc26a4bab/839d6b52ee7f466a8502e5ef6aa41ad9 [2023-11-24 22:51:19,816 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:51:19,819 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:51:19,821 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:51:19,821 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:51:19,829 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:51:19,829 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:51:19" (1/1) ... [2023-11-24 22:51:19,832 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a4dd026 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:19, skipping insertion in model container [2023-11-24 22:51:19,832 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:51:19" (1/1) ... [2023-11-24 22:51:20,162 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:51:22,593 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_3c47df89-c671-4349-a682-20274e14e90d/sv-benchmarks/c/eca-rers2012/Problem06_label24.c[333174,333187] [2023-11-24 22:51:22,624 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:51:22,638 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:51:23,855 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_3c47df89-c671-4349-a682-20274e14e90d/sv-benchmarks/c/eca-rers2012/Problem06_label24.c[333174,333187] [2023-11-24 22:51:23,863 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:51:23,926 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:51:23,926 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:23 WrapperNode [2023-11-24 22:51:23,927 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:51:23,928 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:51:23,928 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:51:23,929 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:51:23,936 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:23" (1/1) ... [2023-11-24 22:51:24,014 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:23" (1/1) ... [2023-11-24 22:51:24,470 INFO L138 Inliner]: procedures = 18, calls = 12, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 10174 [2023-11-24 22:51:24,471 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:51:24,472 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:51:24,472 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:51:24,472 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:51:24,482 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:23" (1/1) ... [2023-11-24 22:51:24,482 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:23" (1/1) ... [2023-11-24 22:51:24,530 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:23" (1/1) ... [2023-11-24 22:51:24,530 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:23" (1/1) ... [2023-11-24 22:51:24,798 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:23" (1/1) ... [2023-11-24 22:51:24,847 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:23" (1/1) ... [2023-11-24 22:51:24,869 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:23" (1/1) ... [2023-11-24 22:51:24,959 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:23" (1/1) ... [2023-11-24 22:51:25,037 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:51:25,038 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:51:25,038 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:51:25,038 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:51:25,039 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:23" (1/1) ... [2023-11-24 22:51:25,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:51:25,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c47df89-c671-4349-a682-20274e14e90d/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:51:25,073 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c47df89-c671-4349-a682-20274e14e90d/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:51:25,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c47df89-c671-4349-a682-20274e14e90d/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:51:25,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:51:25,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 22:51:25,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:51:25,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:51:25,393 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:51:25,411 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:51:33,368 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:51:35,056 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:51:35,056 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 22:51:35,059 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:51:35 BoogieIcfgContainer [2023-11-24 22:51:35,060 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:51:35,061 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:51:35,061 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:51:35,072 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:51:35,072 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:51:35" (1/1) ... [2023-11-24 22:51:35,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:51:35,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:35,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1864 states to 938 states and 1864 transitions. [2023-11-24 22:51:35,183 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 1864 transitions. [2023-11-24 22:51:35,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 930 [2023-11-24 22:51:35,233 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:35,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:51:36,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:51:40,801 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 22:51:48,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:48,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2827 states to 1865 states and 2827 transitions. [2023-11-24 22:51:48,624 INFO L276 IsEmpty]: Start isEmpty. Operand 1865 states and 2827 transitions. [2023-11-24 22:51:48,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 939 [2023-11-24 22:51:48,661 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:48,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:51:49,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:51:51,831 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:51:52,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:52,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2837 states to 1873 states and 2837 transitions. [2023-11-24 22:51:52,291 INFO L276 IsEmpty]: Start isEmpty. Operand 1873 states and 2837 transitions. [2023-11-24 22:51:52,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 951 [2023-11-24 22:51:52,305 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:52,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:51:52,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:51:55,393 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:51:56,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:56,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2860 states to 1893 states and 2860 transitions. [2023-11-24 22:51:56,244 INFO L276 IsEmpty]: Start isEmpty. Operand 1893 states and 2860 transitions. [2023-11-24 22:51:56,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 957 [2023-11-24 22:51:56,270 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:56,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:51:56,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:51:58,324 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:51:59,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:59,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2890 states to 1919 states and 2890 transitions. [2023-11-24 22:51:59,329 INFO L276 IsEmpty]: Start isEmpty. Operand 1919 states and 2890 transitions. [2023-11-24 22:51:59,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 974 [2023-11-24 22:51:59,344 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:59,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:51:59,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat