./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.4.ufo.UNBOUNDED.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_c998dd8b-a5ae-43ff-9dc7-c75c9ec9d9fe/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c998dd8b-a5ae-43ff-9dc7-c75c9ec9d9fe/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_c998dd8b-a5ae-43ff-9dc7-c75c9ec9d9fe/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c998dd8b-a5ae-43ff-9dc7-c75c9ec9d9fe/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_lcr.4.ufo.UNBOUNDED.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c998dd8b-a5ae-43ff-9dc7-c75c9ec9d9fe/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_c998dd8b-a5ae-43ff-9dc7-c75c9ec9d9fe/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 52f795f47ad9dd0b1b0499f649b5f623fed211e53433ed6d87534c63dbfae98b
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-9bd2c7f
[2023-11-19 04:06:31,630 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-11-19 04:06:31,713 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c998dd8b-a5ae-43ff-9dc7-c75c9ec9d9fe/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf
[2023-11-19 04:06:31,719 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-11-19 04:06:31,719 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver
[2023-11-19 04:06:31,744 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-19 04:06:31,745 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-19 04:06:31,746 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ALWAYS
[2023-11-19 04:06:31,747 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-19 04:06:31,748 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-11-19 04:06:31,748 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-19 04:06:31,749 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-11-19 04:06:31,750 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-11-19 04:06:31,750 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-11-19 04:06:31,751 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-11-19 04:06:31,751 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-11-19 04:06:31,752 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-11-19 04:06:31,752 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-19 04:06:31,753 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-11-19 04:06:31,753 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-11-19 04:06:31,754 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-11-19 04:06:31,755 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-11-19 04:06:31,755 INFO  L151        SettingsManager]: Preferences of CodeCheck differ from their defaults:
[2023-11-19 04:06:31,756 INFO  L153        SettingsManager]:  * Timeout in seconds=1000000
[2023-11-19 04:06:31,756 INFO  L153        SettingsManager]:  * Theory for external solver=ALL
[2023-11-19 04:06:31,756 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-19 04:06:31,757 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000
[2023-11-19 04:06:31,757 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-19 04:06:31,758 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-11-19 04:06:31,758 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-19 04:06:31,759 INFO  L153        SettingsManager]:  * Trace refinement strategy=PENGUIN
[2023-11-19 04:06:31,759 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-19 04:06:31,760 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-19 04:06:31,760 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_c998dd8b-a5ae-43ff-9dc7-c75c9ec9d9fe/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_c998dd8b-a5ae-43ff-9dc7-c75c9ec9d9fe/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 -> 52f795f47ad9dd0b1b0499f649b5f623fed211e53433ed6d87534c63dbfae98b
[2023-11-19 04:06:32,049 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-19 04:06:32,075 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-19 04:06:32,078 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-19 04:06:32,082 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-11-19 04:06:32,084 INFO  L274        PluginConnector]: CDTParser initialized
[2023-11-19 04:06:32,085 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c998dd8b-a5ae-43ff-9dc7-c75c9ec9d9fe/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/seq-mthreaded/pals_lcr.4.ufo.UNBOUNDED.pals.c
[2023-11-19 04:06:35,113 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-11-19 04:06:35,364 INFO  L384              CDTParser]: Found 1 translation units.
[2023-11-19 04:06:35,364 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c998dd8b-a5ae-43ff-9dc7-c75c9ec9d9fe/sv-benchmarks/c/seq-mthreaded/pals_lcr.4.ufo.UNBOUNDED.pals.c
[2023-11-19 04:06:35,375 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c998dd8b-a5ae-43ff-9dc7-c75c9ec9d9fe/bin/ukojak-verify-G8NBE6pJGL/data/280548d24/88fa01e78e234023a6f36d5604821c69/FLAG21f1e9e52
[2023-11-19 04:06:35,391 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c998dd8b-a5ae-43ff-9dc7-c75c9ec9d9fe/bin/ukojak-verify-G8NBE6pJGL/data/280548d24/88fa01e78e234023a6f36d5604821c69
[2023-11-19 04:06:35,393 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-19 04:06:35,395 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-19 04:06:35,397 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-19 04:06:35,397 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-19 04:06:35,402 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-19 04:06:35,403 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:06:35" (1/1) ...
[2023-11-19 04:06:35,404 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d4f2205 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:35, skipping insertion in model container
[2023-11-19 04:06:35,404 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:06:35" (1/1) ...
[2023-11-19 04:06:35,440 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-11-19 04:06:35,682 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_c998dd8b-a5ae-43ff-9dc7-c75c9ec9d9fe/sv-benchmarks/c/seq-mthreaded/pals_lcr.4.ufo.UNBOUNDED.pals.c[8305,8318]
[2023-11-19 04:06:35,688 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-19 04:06:35,709 INFO  L202         MainTranslator]: Completed pre-run
[2023-11-19 04:06:35,756 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_c998dd8b-a5ae-43ff-9dc7-c75c9ec9d9fe/sv-benchmarks/c/seq-mthreaded/pals_lcr.4.ufo.UNBOUNDED.pals.c[8305,8318]
[2023-11-19 04:06:35,757 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-19 04:06:35,774 INFO  L206         MainTranslator]: Completed translation
[2023-11-19 04:06:35,775 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:35 WrapperNode
[2023-11-19 04:06:35,775 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-19 04:06:35,776 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-19 04:06:35,776 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-19 04:06:35,777 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-19 04:06:35,784 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:35" (1/1) ...
[2023-11-19 04:06:35,793 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:35" (1/1) ...
[2023-11-19 04:06:35,829 INFO  L138                Inliner]: procedures = 24, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 274
[2023-11-19 04:06:35,829 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-19 04:06:35,830 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-19 04:06:35,830 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-19 04:06:35,830 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-11-19 04:06:35,842 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:35" (1/1) ...
[2023-11-19 04:06:35,842 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:35" (1/1) ...
[2023-11-19 04:06:35,846 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:35" (1/1) ...
[2023-11-19 04:06:35,847 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:35" (1/1) ...
[2023-11-19 04:06:35,855 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:35" (1/1) ...
[2023-11-19 04:06:35,861 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:35" (1/1) ...
[2023-11-19 04:06:35,863 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:35" (1/1) ...
[2023-11-19 04:06:35,865 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:35" (1/1) ...
[2023-11-19 04:06:35,870 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-19 04:06:35,871 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-19 04:06:35,871 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-11-19 04:06:35,871 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-11-19 04:06:35,872 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:06:35" (1/1) ...
[2023-11-19 04:06:35,878 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000
[2023-11-19 04:06:35,893 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c998dd8b-a5ae-43ff-9dc7-c75c9ec9d9fe/bin/ukojak-verify-G8NBE6pJGL/z3
[2023-11-19 04:06:35,906 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c998dd8b-a5ae-43ff-9dc7-c75c9ec9d9fe/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null)
[2023-11-19 04:06:35,923 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c998dd8b-a5ae-43ff-9dc7-c75c9ec9d9fe/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process
[2023-11-19 04:06:35,973 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-19 04:06:35,973 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2023-11-19 04:06:35,973 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-19 04:06:35,974 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-19 04:06:36,071 INFO  L236             CfgBuilder]: Building ICFG
[2023-11-19 04:06:36,073 INFO  L262             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-19 04:06:36,532 INFO  L277             CfgBuilder]: Performing block encoding
[2023-11-19 04:06:37,072 INFO  L297             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-19 04:06:37,072 INFO  L302             CfgBuilder]: Removed 1 assume(true) statements.
[2023-11-19 04:06:37,077 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:06:37 BoogieIcfgContainer
[2023-11-19 04:06:37,077 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-19 04:06:37,078 INFO  L112        PluginConnector]: ------------------------CodeCheck----------------------------
[2023-11-19 04:06:37,078 INFO  L270        PluginConnector]: Initializing CodeCheck...
[2023-11-19 04:06:37,088 INFO  L274        PluginConnector]: CodeCheck initialized
[2023-11-19 04:06:37,088 INFO  L184        PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:06:37" (1/1) ...
[2023-11-19 04:06:37,098 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 04:06:37,148 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2023-11-19 04:06:37,155 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 12 states and 16 transitions.
[2023-11-19 04:06:37,155 INFO  L276                IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions.
[2023-11-19 04:06:37,158 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2023-11-19 04:06:37,158 INFO  L423      CodeCheckObserver]: Error Path is FOUND.
[2023-11-19 04:06:37,159 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 04:06:37,344 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 04:06:38,545 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 04:06:38,666 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2023-11-19 04:06:38,667 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 13 states and 18 transitions.
[2023-11-19 04:06:38,667 INFO  L276                IsEmpty]: Start isEmpty. Operand 13 states and 18 transitions.
[2023-11-19 04:06:38,667 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2023-11-19 04:06:38,668 INFO  L423      CodeCheckObserver]: Error Path is FOUND.
[2023-11-19 04:06:38,669 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 04:06:38,777 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 04:06:39,203 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 04:06:39,586 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2023-11-19 04:06:39,587 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 16 states and 24 transitions.
[2023-11-19 04:06:39,587 INFO  L276                IsEmpty]: Start isEmpty. Operand 16 states and 24 transitions.
[2023-11-19 04:06:39,587 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2023-11-19 04:06:39,587 INFO  L423      CodeCheckObserver]: Error Path is FOUND.
[2023-11-19 04:06:39,588 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 04:06:39,619 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 04:06:40,316 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 04:06:40,918 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2023-11-19 04:06:40,920 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 20 states and 31 transitions.
[2023-11-19 04:06:40,920 INFO  L276                IsEmpty]: Start isEmpty. Operand 20 states and 31 transitions.
[2023-11-19 04:06:40,924 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2023-11-19 04:06:40,924 INFO  L423      CodeCheckObserver]: Error Path is FOUND.
[2023-11-19 04:06:40,924 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 04:06:40,956 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 04:06:41,685 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 04:06:41,985 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2023-11-19 04:06:41,985 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 23 states and 36 transitions.
[2023-11-19 04:06:41,985 INFO  L276                IsEmpty]: Start isEmpty. Operand 23 states and 36 transitions.
[2023-11-19 04:06:41,986 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2023-11-19 04:06:41,986 INFO  L423      CodeCheckObserver]: Error Path is FOUND.
[2023-11-19 04:06:41,987 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 04:06:42,169 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 04:06:47,419 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 04:06:52,567 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2023-11-19 04:06:52,568 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 33 states and 56 transitions.
[2023-11-19 04:06:52,568 INFO  L276                IsEmpty]: Start isEmpty. Operand 33 states and 56 transitions.
[2023-11-19 04:06:52,569 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2023-11-19 04:06:52,569 INFO  L423      CodeCheckObserver]: Error Path is FOUND.
[2023-11-19 04:06:52,570 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 04:06:52,648 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 04:06:53,193 INFO  L134       CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 04:06:57,189 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2023-11-19 04:06:57,191 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 41 states and 72 transitions.
[2023-11-19 04:06:57,191 INFO  L276                IsEmpty]: Start isEmpty. Operand 41 states and 72 transitions.
[2023-11-19 04:06:57,194 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2023-11-19 04:06:57,194 INFO  L423      CodeCheckObserver]: Error Path is FOUND.
[2023-11-19 04:06:57,194 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 04:06:57,350 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 04:07:01,438 INFO  L134       CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 04:07:08,142 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2023-11-19 04:07:08,143 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 52 states and 92 transitions.
[2023-11-19 04:07:08,143 INFO  L276                IsEmpty]: Start isEmpty. Operand 52 states and 92 transitions.
[2023-11-19 04:07:08,144 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2023-11-19 04:07:08,144 INFO  L423      CodeCheckObserver]: Error Path is FOUND.
[2023-11-19 04:07:08,145 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 04:07:08,204 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 04:07:08,608 INFO  L134       CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 04:07:08,916 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2023-11-19 04:07:08,917 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 53 states and 95 transitions.
[2023-11-19 04:07:08,917 INFO  L276                IsEmpty]: Start isEmpty. Operand 53 states and 95 transitions.
[2023-11-19 04:07:08,918 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 23
[2023-11-19 04:07:08,919 INFO  L423      CodeCheckObserver]: Error Path is FOUND.
[2023-11-19 04:07:08,919 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 04:07:08,966 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 04:07:11,096 INFO  L134       CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-19 04:07:20,052 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand no size info available
[2023-11-19 04:07:20,053 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 70 states and 138 transitions.
[2023-11-19 04:07:20,054 INFO  L276                IsEmpty]: Start isEmpty. Operand 70 states and 138 transitions.
[2023-11-19 04:07:20,055 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2023-11-19 04:07:20,055 INFO  L423      CodeCheckObserver]: Error Path is FOUND.
[2023-11-19 04:07:20,055 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 04:07:20,109 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 04:07:22,080 INFO  L134       CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.