./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.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_0ff5bb27-688e-44a3-b98a-e9a50d09d6b2/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff5bb27-688e-44a3-b98a-e9a50d09d6b2/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_0ff5bb27-688e-44a3-b98a-e9a50d09d6b2/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff5bb27-688e-44a3-b98a-e9a50d09d6b2/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff5bb27-688e-44a3-b98a-e9a50d09d6b2/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_0ff5bb27-688e-44a3-b98a-e9a50d09d6b2/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 17ba764d4851428799f2c4794a4662e2753aae472d291b23839dac79bbfbab6d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:46:01,057 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:46:01,123 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff5bb27-688e-44a3-b98a-e9a50d09d6b2/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 02:46:01,132 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 02:46:01,133 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 02:46:01,169 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:46:01,170 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 02:46:01,171 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 02:46:01,173 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:46:01,177 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:46:01,179 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:46:01,179 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:46:01,180 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 02:46:01,182 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 02:46:01,182 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 02:46:01,182 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:46:01,183 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:46:01,183 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:46:01,184 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:46:01,184 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 02:46:01,184 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:46:01,185 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:46:01,185 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:46:01,186 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:46:01,186 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:46:01,186 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:46:01,187 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:46:01,187 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:46:01,188 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:46:01,188 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 02:46:01,188 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 02:46:01,189 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 02:46:01,189 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 02:46:01,189 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_0ff5bb27-688e-44a3-b98a-e9a50d09d6b2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff5bb27-688e-44a3-b98a-e9a50d09d6b2/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 17ba764d4851428799f2c4794a4662e2753aae472d291b23839dac79bbfbab6d [2023-11-19 02:46:01,485 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:46:01,509 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:46:01,511 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:46:01,513 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:46:01,513 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:46:01,515 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff5bb27-688e-44a3-b98a-e9a50d09d6b2/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c [2023-11-19 02:46:04,527 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:46:04,839 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:46:04,840 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff5bb27-688e-44a3-b98a-e9a50d09d6b2/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c [2023-11-19 02:46:04,856 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff5bb27-688e-44a3-b98a-e9a50d09d6b2/bin/ukojak-verify-G8NBE6pJGL/data/4ff6b0ea8/a9a5ca507ef44adb98b410ac32fdc317/FLAGe7353c16f [2023-11-19 02:46:04,874 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff5bb27-688e-44a3-b98a-e9a50d09d6b2/bin/ukojak-verify-G8NBE6pJGL/data/4ff6b0ea8/a9a5ca507ef44adb98b410ac32fdc317 [2023-11-19 02:46:04,879 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:46:04,882 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:46:04,887 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:46:04,888 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:46:04,893 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:46:04,896 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:46:04" (1/1) ... [2023-11-19 02:46:04,898 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d34ff3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:04, skipping insertion in model container [2023-11-19 02:46:04,898 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:46:04" (1/1) ... [2023-11-19 02:46:04,955 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:46:05,237 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_0ff5bb27-688e-44a3-b98a-e9a50d09d6b2/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c[9392,9405] [2023-11-19 02:46:05,241 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:46:05,252 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:46:05,310 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_0ff5bb27-688e-44a3-b98a-e9a50d09d6b2/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.4.ufo.BOUNDED-8.pals.c[9392,9405] [2023-11-19 02:46:05,313 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:46:05,343 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:46:05,344 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:05 WrapperNode [2023-11-19 02:46:05,344 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:46:05,345 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:46:05,346 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:46:05,346 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:46:05,353 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:05" (1/1) ... [2023-11-19 02:46:05,377 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:05" (1/1) ... [2023-11-19 02:46:05,426 INFO L138 Inliner]: procedures = 22, calls = 14, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 307 [2023-11-19 02:46:05,428 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:46:05,428 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:46:05,429 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:46:05,429 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:46:05,438 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:05" (1/1) ... [2023-11-19 02:46:05,439 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:05" (1/1) ... [2023-11-19 02:46:05,453 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:05" (1/1) ... [2023-11-19 02:46:05,455 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:05" (1/1) ... [2023-11-19 02:46:05,463 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:05" (1/1) ... [2023-11-19 02:46:05,485 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:05" (1/1) ... [2023-11-19 02:46:05,487 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:05" (1/1) ... [2023-11-19 02:46:05,489 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:05" (1/1) ... [2023-11-19 02:46:05,496 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:46:05,502 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:46:05,502 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:46:05,503 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:46:05,503 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:05" (1/1) ... [2023-11-19 02:46:05,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:46:05,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff5bb27-688e-44a3-b98a-e9a50d09d6b2/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:46:05,542 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff5bb27-688e-44a3-b98a-e9a50d09d6b2/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:46:05,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff5bb27-688e-44a3-b98a-e9a50d09d6b2/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:46:05,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:46:05,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 02:46:05,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:46:05,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:46:05,718 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:46:05,720 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:46:06,211 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:46:06,854 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:46:06,854 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 02:46:06,859 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:46:06 BoogieIcfgContainer [2023-11-19 02:46:06,859 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:46:06,861 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:46:06,861 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:46:06,871 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:46:06,872 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:46:06" (1/1) ... [2023-11-19 02:46:06,882 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:46:06,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:46:06,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-11-19 02:46:06,943 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-11-19 02:46:06,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 02:46:06,945 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:46:06,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:46:07,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:46:08,779 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 02:46:08,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:46:08,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 9 states and 12 transitions. [2023-11-19 02:46:08,911 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 12 transitions. [2023-11-19 02:46:08,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 02:46:08,911 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:46:08,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:46:09,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:46:14,439 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:46:16,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:46:16,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 13 states and 25 transitions. [2023-11-19 02:46:16,487 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 25 transitions. [2023-11-19 02:46:16,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 02:46:16,491 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:46:16,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:46:16,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:46:19,472 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:46:23,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:46:23,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 18 states and 40 transitions. [2023-11-19 02:46:23,370 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 40 transitions. [2023-11-19 02:46:23,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 02:46:23,371 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:46:23,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:46:23,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:46:29,036 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:46:31,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:46:31,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 21 states and 46 transitions. [2023-11-19 02:46:31,601 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 46 transitions. [2023-11-19 02:46:31,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 02:46:31,602 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:46:31,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:46:32,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat