./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/locks/test_locks_5.c --full-output --architecture 32bit


--------------------------------------------------------------------------------


Checking for termination
Using default analysis
Version b2eff8ba
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f2e628-10e2-4dbb-a126-a923bf091ab4/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f2e628-10e2-4dbb-a126-a923bf091ab4/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f2e628-10e2-4dbb-a126-a923bf091ab4/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f2e628-10e2-4dbb-a126-a923bf091ab4/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/locks/test_locks_5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f2e628-10e2-4dbb-a126-a923bf091ab4/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f2e628-10e2-4dbb-a126-a923bf091ab4/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3f68d39859f114df07f2619f37e3285dcdf00194e62a42552d2c67e537c13685
........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
Execution finished normally
Writing output log to file Ultimate.log
Writing human readable error path to file UltimateCounterExample.errorpath
Result:
FALSE(TERM)
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-b2eff8b
[2021-10-29 00:00:10,644 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2021-10-29 00:00:10,647 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2021-10-29 00:00:10,697 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-10-29 00:00:10,698 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-10-29 00:00:10,701 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-10-29 00:00:10,703 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-10-29 00:00:10,707 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2021-10-29 00:00:10,709 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-10-29 00:00:10,714 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-10-29 00:00:10,715 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2021-10-29 00:00:10,717 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-10-29 00:00:10,718 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-10-29 00:00:10,720 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-10-29 00:00:10,722 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-10-29 00:00:10,729 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-10-29 00:00:10,731 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-10-29 00:00:10,732 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-10-29 00:00:10,734 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-10-29 00:00:10,741 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2021-10-29 00:00:10,743 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-10-29 00:00:10,745 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-10-29 00:00:10,748 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2021-10-29 00:00:10,749 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-10-29 00:00:10,757 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-10-29 00:00:10,758 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-10-29 00:00:10,758 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-10-29 00:00:10,760 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-10-29 00:00:10,761 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-10-29 00:00:10,762 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-10-29 00:00:10,763 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-10-29 00:00:10,764 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-10-29 00:00:10,765 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-10-29 00:00:10,767 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2021-10-29 00:00:10,768 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-10-29 00:00:10,768 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2021-10-29 00:00:10,769 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-10-29 00:00:10,769 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-10-29 00:00:10,770 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2021-10-29 00:00:10,771 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2021-10-29 00:00:10,772 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2021-10-29 00:00:10,773 INFO  L101        SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f2e628-10e2-4dbb-a126-a923bf091ab4/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf
[2021-10-29 00:00:10,816 INFO  L113        SettingsManager]: Loading preferences was successful
[2021-10-29 00:00:10,816 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2021-10-29 00:00:10,817 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-10-29 00:00:10,817 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-10-29 00:00:10,818 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-10-29 00:00:10,819 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2021-10-29 00:00:10,819 INFO  L138        SettingsManager]:  * Use SBE=true
[2021-10-29 00:00:10,819 INFO  L136        SettingsManager]: Preferences of BuchiAutomizer differ from their defaults:
[2021-10-29 00:00:10,819 INFO  L138        SettingsManager]:  * NCSB implementation=INTSET_LAZY3
[2021-10-29 00:00:10,820 INFO  L138        SettingsManager]:  * Use old map elimination=false
[2021-10-29 00:00:10,821 INFO  L138        SettingsManager]:  * Use external solver (rank synthesis)=false
[2021-10-29 00:00:10,821 INFO  L138        SettingsManager]:  * Use only trivial implications for array writes=true
[2021-10-29 00:00:10,821 INFO  L138        SettingsManager]:  * Rank analysis=LINEAR_WITH_GUESSES
[2021-10-29 00:00:10,821 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-10-29 00:00:10,821 INFO  L138        SettingsManager]:  * sizeof long=4
[2021-10-29 00:00:10,822 INFO  L138        SettingsManager]:  * Check unreachability of error function in SV-COMP mode=false
[2021-10-29 00:00:10,822 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2021-10-29 00:00:10,822 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2021-10-29 00:00:10,822 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2021-10-29 00:00:10,823 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=ASSUME
[2021-10-29 00:00:10,823 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=ASSUME
[2021-10-29 00:00:10,823 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=ASSUME
[2021-10-29 00:00:10,823 INFO  L138        SettingsManager]:  * sizeof long double=12
[2021-10-29 00:00:10,823 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2021-10-29 00:00:10,824 INFO  L138        SettingsManager]:  * Assume nondeterminstic values are in range=false
[2021-10-29 00:00:10,824 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2021-10-29 00:00:10,825 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=ASSUME
[2021-10-29 00:00:10,826 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-10-29 00:00:10,826 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2021-10-29 00:00:10,826 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-10-29 00:00:10,827 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2021-10-29 00:00:10,827 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2021-10-29 00:00:10,828 INFO  L136        SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2021-10-29 00:00:10,828 INFO  L138        SettingsManager]:  * TransformationType=MODULO_NEIGHBOR
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_f2f2e628-10e2-4dbb-a126-a923bf091ab4/bin/uautomizer-GMMbpWq8iD/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_f2f2e628-10e2-4dbb-a126-a923bf091ab4/bin/uautomizer-GMMbpWq8iD
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
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(F end) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
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 -> 3f68d39859f114df07f2619f37e3285dcdf00194e62a42552d2c67e537c13685
[2021-10-29 00:00:11,101 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2021-10-29 00:00:11,134 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-10-29 00:00:11,136 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-10-29 00:00:11,137 INFO  L271        PluginConnector]: Initializing CDTParser...
[2021-10-29 00:00:11,143 INFO  L275        PluginConnector]: CDTParser initialized
[2021-10-29 00:00:11,144 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f2e628-10e2-4dbb-a126-a923bf091ab4/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/locks/test_locks_5.c
[2021-10-29 00:00:11,234 INFO  L220              CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f2e628-10e2-4dbb-a126-a923bf091ab4/bin/uautomizer-GMMbpWq8iD/data/63fd56118/3a16c7001d5b4f40954f5bd6f7451d5b/FLAG87b3c3380
[2021-10-29 00:00:11,640 INFO  L306              CDTParser]: Found 1 translation units.
[2021-10-29 00:00:11,641 INFO  L160              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f2e628-10e2-4dbb-a126-a923bf091ab4/sv-benchmarks/c/locks/test_locks_5.c
[2021-10-29 00:00:11,648 INFO  L349              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f2e628-10e2-4dbb-a126-a923bf091ab4/bin/uautomizer-GMMbpWq8iD/data/63fd56118/3a16c7001d5b4f40954f5bd6f7451d5b/FLAG87b3c3380
[2021-10-29 00:00:12,057 INFO  L357              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f2e628-10e2-4dbb-a126-a923bf091ab4/bin/uautomizer-GMMbpWq8iD/data/63fd56118/3a16c7001d5b4f40954f5bd6f7451d5b
[2021-10-29 00:00:12,059 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-10-29 00:00:12,060 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2021-10-29 00:00:12,061 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-10-29 00:00:12,061 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-10-29 00:00:12,065 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2021-10-29 00:00:12,066 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:00:12" (1/1) ...
[2021-10-29 00:00:12,067 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dafa27e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:12, skipping insertion in model container
[2021-10-29 00:00:12,067 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:00:12" (1/1) ...
[2021-10-29 00:00:12,074 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2021-10-29 00:00:12,089 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2021-10-29 00:00:12,258 WARN  L228   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_f2f2e628-10e2-4dbb-a126-a923bf091ab4/sv-benchmarks/c/locks/test_locks_5.c[2207,2220]
[2021-10-29 00:00:12,259 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2021-10-29 00:00:12,267 INFO  L203         MainTranslator]: Completed pre-run
[2021-10-29 00:00:12,286 WARN  L228   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_f2f2e628-10e2-4dbb-a126-a923bf091ab4/sv-benchmarks/c/locks/test_locks_5.c[2207,2220]
[2021-10-29 00:00:12,287 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2021-10-29 00:00:12,300 INFO  L208         MainTranslator]: Completed translation
[2021-10-29 00:00:12,301 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:12 WrapperNode
[2021-10-29 00:00:12,301 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-10-29 00:00:12,302 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-10-29 00:00:12,303 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-10-29 00:00:12,303 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2021-10-29 00:00:12,310 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:12" (1/1) ...
[2021-10-29 00:00:12,316 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:12" (1/1) ...
[2021-10-29 00:00:12,335 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-10-29 00:00:12,335 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-10-29 00:00:12,336 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2021-10-29 00:00:12,336 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2021-10-29 00:00:12,343 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:12" (1/1) ...
[2021-10-29 00:00:12,344 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:12" (1/1) ...
[2021-10-29 00:00:12,345 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:12" (1/1) ...
[2021-10-29 00:00:12,345 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:12" (1/1) ...
[2021-10-29 00:00:12,349 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:12" (1/1) ...
[2021-10-29 00:00:12,353 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:12" (1/1) ...
[2021-10-29 00:00:12,354 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:12" (1/1) ...
[2021-10-29 00:00:12,356 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-10-29 00:00:12,357 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-10-29 00:00:12,357 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2021-10-29 00:00:12,357 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2021-10-29 00:00:12,358 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:12" (1/1) ...
[2021-10-29 00:00:12,365 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-29 00:00:12,376 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f2e628-10e2-4dbb-a126-a923bf091ab4/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-29 00:00:12,388 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f2e628-10e2-4dbb-a126-a923bf091ab4/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-29 00:00:12,420 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f2e628-10e2-4dbb-a126-a923bf091ab4/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process
[2021-10-29 00:00:12,440 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-10-29 00:00:12,440 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-10-29 00:00:12,440 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2021-10-29 00:00:12,440 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-10-29 00:00:12,653 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-10-29 00:00:12,653 INFO  L299             CfgBuilder]: Removed 5 assume(true) statements.
[2021-10-29 00:00:12,655 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:00:12 BoogieIcfgContainer
[2021-10-29 00:00:12,655 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-10-29 00:00:12,657 INFO  L113        PluginConnector]: ------------------------BuchiAutomizer----------------------------
[2021-10-29 00:00:12,657 INFO  L271        PluginConnector]: Initializing BuchiAutomizer...
[2021-10-29 00:00:12,669 INFO  L275        PluginConnector]: BuchiAutomizer initialized
[2021-10-29 00:00:12,670 INFO  L99          BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2021-10-29 00:00:12,670 INFO  L185        PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.10 12:00:12" (1/3) ...
[2021-10-29 00:00:12,671 INFO  L205        PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6023c9b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.10 12:00:12, skipping insertion in model container
[2021-10-29 00:00:12,673 INFO  L99          BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2021-10-29 00:00:12,673 INFO  L185        PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:00:12" (2/3) ...
[2021-10-29 00:00:12,674 INFO  L205        PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6023c9b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.10 12:00:12, skipping insertion in model container
[2021-10-29 00:00:12,674 INFO  L99          BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2021-10-29 00:00:12,674 INFO  L185        PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:00:12" (3/3) ...
[2021-10-29 00:00:12,675 INFO  L389   chiAutomizerObserver]: Analyzing ICFG test_locks_5.c
[2021-10-29 00:00:12,765 INFO  L359         BuchiCegarLoop]: Interprodecural is true
[2021-10-29 00:00:12,766 INFO  L360         BuchiCegarLoop]: Hoare is false
[2021-10-29 00:00:12,766 INFO  L361         BuchiCegarLoop]: Compute interpolants for ForwardPredicates
[2021-10-29 00:00:12,766 INFO  L362         BuchiCegarLoop]: Backedges is STRAIGHT_LINE
[2021-10-29 00:00:12,766 INFO  L363         BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2021-10-29 00:00:12,766 INFO  L364         BuchiCegarLoop]: Difference is false
[2021-10-29 00:00:12,767 INFO  L365         BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA
[2021-10-29 00:00:12,767 INFO  L368         BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop========
[2021-10-29 00:00:12,782 INFO  L72            BuchiIsEmpty]: Start buchiIsEmpty. Operand  has 24 states, 23 states have (on average 1.7826086956521738) internal successors, (41), 23 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-29 00:00:12,801 INFO  L131   ngComponentsAnalysis]: Automaton has 1 accepting balls. 17
[2021-10-29 00:00:12,802 INFO  L87            BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-29 00:00:12,802 INFO  L119           BuchiIsEmpty]: Starting construction of run
[2021-10-29 00:00:12,808 INFO  L842         BuchiCegarLoop]: Counterexample stem histogram [1, 1]
[2021-10-29 00:00:12,808 INFO  L843         BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-29 00:00:12,808 INFO  L425         BuchiCegarLoop]: ======== Iteration 1============
[2021-10-29 00:00:12,809 INFO  L72            BuchiIsEmpty]: Start buchiIsEmpty. Operand  has 24 states, 23 states have (on average 1.7826086956521738) internal successors, (41), 23 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-29 00:00:12,812 INFO  L131   ngComponentsAnalysis]: Automaton has 1 accepting balls. 17
[2021-10-29 00:00:12,813 INFO  L87            BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-29 00:00:12,813 INFO  L119           BuchiIsEmpty]: Starting construction of run
[2021-10-29 00:00:12,814 INFO  L842         BuchiCegarLoop]: Counterexample stem histogram [1, 1]
[2021-10-29 00:00:12,814 INFO  L843         BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-29 00:00:12,821 INFO  L791   eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(15);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 14#L-1true havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_~p1~0, main_~lk1~0, main_~p2~0, main_~lk2~0, main_~p3~0, main_~lk3~0, main_~p4~0, main_~lk4~0, main_~p5~0, main_~lk5~0, main_~cond~0;main_~p1~0 := main_#t~nondet7;havoc main_#t~nondet7;havoc main_~lk1~0;main_~p2~0 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~lk2~0;main_~p3~0 := main_#t~nondet9;havoc main_#t~nondet9;havoc main_~lk3~0;main_~p4~0 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~lk4~0;main_~p5~0 := main_#t~nondet11;havoc main_#t~nondet11;havoc main_~lk5~0;havoc main_~cond~0; 8#L85-1true 
[2021-10-29 00:00:12,821 INFO  L793   eck$LassoCheckResult]: Loop: 8#L85-1true assume !false;main_~cond~0 := main_#t~nondet12;havoc main_#t~nondet12; 23#L28true assume !(0 == main_~cond~0);main_~lk1~0 := 0;main_~lk2~0 := 0;main_~lk3~0 := 0;main_~lk4~0 := 0;main_~lk5~0 := 0; 9#L43true assume 0 != main_~p1~0;main_~lk1~0 := 1; 10#L43-2true assume 0 != main_~p2~0;main_~lk2~0 := 1; 19#L47-1true assume !(0 != main_~p3~0); 17#L51-1true assume 0 != main_~p4~0;main_~lk4~0 := 1; 18#L55-1true assume 0 != main_~p5~0;main_~lk5~0 := 1; 21#L59-1true assume !(0 != main_~p1~0); 11#L65-1true assume !(0 != main_~p2~0); 20#L70-1true assume !(0 != main_~p3~0); 22#L75-1true assume !(0 != main_~p4~0); 24#L80-1true assume !(0 != main_~p5~0); 8#L85-1true 
[2021-10-29 00:00:12,827 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-29 00:00:12,827 INFO  L85        PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times
[2021-10-29 00:00:12,835 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-29 00:00:12,836 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989326061]
[2021-10-29 00:00:12,836 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-29 00:00:12,837 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-29 00:00:12,946 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-29 00:00:12,947 INFO  L355             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-29 00:00:12,969 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-29 00:00:13,006 INFO  L133   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-29 00:00:13,009 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-29 00:00:13,009 INFO  L85        PathProgramCache]: Analyzing trace with hash -2089480461, now seen corresponding path program 1 times
[2021-10-29 00:00:13,010 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-29 00:00:13,010 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274539930]
[2021-10-29 00:00:13,010 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-29 00:00:13,011 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-29 00:00:13,023 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-29 00:00:13,129 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-29 00:00:13,130 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-29 00:00:13,131 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274539930]
[2021-10-29 00:00:13,132 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274539930] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-29 00:00:13,133 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-29 00:00:13,133 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-29 00:00:13,134 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430959434]
[2021-10-29 00:00:13,146 INFO  L808   eck$LassoCheckResult]: loop already infeasible
[2021-10-29 00:00:13,152 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-29 00:00:13,171 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-29 00:00:13,172 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-29 00:00:13,173 INFO  L87              Difference]: Start difference. First operand  has 24 states, 23 states have (on average 1.7826086956521738) internal successors, (41), 23 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-29 00:00:13,222 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-29 00:00:13,222 INFO  L93              Difference]: Finished difference Result 45 states and 70 transitions.
[2021-10-29 00:00:13,223 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-29 00:00:13,225 INFO  L82        GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 70 transitions.
[2021-10-29 00:00:13,233 INFO  L131   ngComponentsAnalysis]: Automaton has 2 accepting balls. 33
[2021-10-29 00:00:13,239 INFO  L88        GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 35 states and 53 transitions.
[2021-10-29 00:00:13,240 INFO  L87         BuchiClosureNwa]: Accepting states before buchiClosure: 35
[2021-10-29 00:00:13,241 INFO  L106        BuchiClosureNwa]: Accepting states after buchiClosure: 35
[2021-10-29 00:00:13,242 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 35 states and 53 transitions.
[2021-10-29 00:00:13,243 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-10-29 00:00:13,243 INFO  L681         BuchiCegarLoop]: Abstraction has 35 states and 53 transitions.
[2021-10-29 00:00:13,259 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 35 states and 53 transitions.
[2021-10-29 00:00:13,272 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35.
[2021-10-29 00:00:13,273 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 35 states, 35 states have (on average 1.5142857142857142) internal successors, (53), 34 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-29 00:00:13,275 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 53 transitions.
[2021-10-29 00:00:13,276 INFO  L704         BuchiCegarLoop]: Abstraction has 35 states and 53 transitions.
[2021-10-29 00:00:13,276 INFO  L587         BuchiCegarLoop]: Abstraction has 35 states and 53 transitions.
[2021-10-29 00:00:13,277 INFO  L425         BuchiCegarLoop]: ======== Iteration 2============
[2021-10-29 00:00:13,277 INFO  L72            BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 53 transitions.
[2021-10-29 00:00:13,280 INFO  L131   ngComponentsAnalysis]: Automaton has 2 accepting balls. 33
[2021-10-29 00:00:13,281 INFO  L87            BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-29 00:00:13,281 INFO  L119           BuchiIsEmpty]: Starting construction of run
[2021-10-29 00:00:13,282 INFO  L842         BuchiCegarLoop]: Counterexample stem histogram [1, 1]
[2021-10-29 00:00:13,282 INFO  L843         BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-29 00:00:13,283 INFO  L791   eck$LassoCheckResult]: Stem: 80#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(15);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 81#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_~p1~0, main_~lk1~0, main_~p2~0, main_~lk2~0, main_~p3~0, main_~lk3~0, main_~p4~0, main_~lk4~0, main_~p5~0, main_~lk5~0, main_~cond~0;main_~p1~0 := main_#t~nondet7;havoc main_#t~nondet7;havoc main_~lk1~0;main_~p2~0 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~lk2~0;main_~p3~0 := main_#t~nondet9;havoc main_#t~nondet9;havoc main_~lk3~0;main_~p4~0 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~lk4~0;main_~p5~0 := main_#t~nondet11;havoc main_#t~nondet11;havoc main_~lk5~0;havoc main_~cond~0; 79#L85-1 
[2021-10-29 00:00:13,283 INFO  L793   eck$LassoCheckResult]: Loop: 79#L85-1 assume !false;main_~cond~0 := main_#t~nondet12;havoc main_#t~nondet12; 84#L28 assume !(0 == main_~cond~0);main_~lk1~0 := 0;main_~lk2~0 := 0;main_~lk3~0 := 0;main_~lk4~0 := 0;main_~lk5~0 := 0; 100#L43 assume !(0 != main_~p1~0); 87#L43-2 assume 0 != main_~p2~0;main_~lk2~0 := 1; 88#L47-1 assume !(0 != main_~p3~0); 93#L51-1 assume 0 != main_~p4~0;main_~lk4~0 := 1; 94#L55-1 assume 0 != main_~p5~0;main_~lk5~0 := 1; 95#L59-1 assume !(0 != main_~p1~0); 101#L65-1 assume !(0 != main_~p2~0); 111#L70-1 assume !(0 != main_~p3~0); 98#L75-1 assume !(0 != main_~p4~0); 92#L80-1 assume !(0 != main_~p5~0); 79#L85-1 
[2021-10-29 00:00:13,285 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-29 00:00:13,286 INFO  L85        PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times
[2021-10-29 00:00:13,286 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-29 00:00:13,287 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289544595]
[2021-10-29 00:00:13,287 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-29 00:00:13,287 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-29 00:00:13,316 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-29 00:00:13,323 INFO  L355             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-29 00:00:13,348 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-29 00:00:13,367 INFO  L133   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-29 00:00:13,368 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-29 00:00:13,368 INFO  L85        PathProgramCache]: Analyzing trace with hash 1812459825, now seen corresponding path program 1 times
[2021-10-29 00:00:13,368 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-29 00:00:13,369 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097226831]
[2021-10-29 00:00:13,369 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-29 00:00:13,369 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-29 00:00:13,375 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-29 00:00:13,392 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-29 00:00:13,392 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-29 00:00:13,392 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097226831]
[2021-10-29 00:00:13,393 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097226831] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-29 00:00:13,393 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-29 00:00:13,393 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-29 00:00:13,394 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069493609]
[2021-10-29 00:00:13,394 INFO  L808   eck$LassoCheckResult]: loop already infeasible
[2021-10-29 00:00:13,394 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-29 00:00:13,395 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-29 00:00:13,395 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-29 00:00:13,396 INFO  L87              Difference]: Start difference. First operand 35 states and 53 transitions. cyclomatic complexity: 20 Second operand  has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-29 00:00:13,409 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-29 00:00:13,409 INFO  L93              Difference]: Finished difference Result 66 states and 98 transitions.
[2021-10-29 00:00:13,409 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-29 00:00:13,410 INFO  L82        GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 98 transitions.
[2021-10-29 00:00:13,412 INFO  L131   ngComponentsAnalysis]: Automaton has 4 accepting balls. 64
[2021-10-29 00:00:13,414 INFO  L88        GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 66 states and 98 transitions.
[2021-10-29 00:00:13,414 INFO  L87         BuchiClosureNwa]: Accepting states before buchiClosure: 66
[2021-10-29 00:00:13,414 INFO  L106        BuchiClosureNwa]: Accepting states after buchiClosure: 66
[2021-10-29 00:00:13,415 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 66 states and 98 transitions.
[2021-10-29 00:00:13,415 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-10-29 00:00:13,416 INFO  L681         BuchiCegarLoop]: Abstraction has 66 states and 98 transitions.
[2021-10-29 00:00:13,416 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 66 states and 98 transitions.
[2021-10-29 00:00:13,421 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66.
[2021-10-29 00:00:13,421 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 66 states, 66 states have (on average 1.4848484848484849) internal successors, (98), 65 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-29 00:00:13,423 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 98 transitions.
[2021-10-29 00:00:13,423 INFO  L704         BuchiCegarLoop]: Abstraction has 66 states and 98 transitions.
[2021-10-29 00:00:13,423 INFO  L587         BuchiCegarLoop]: Abstraction has 66 states and 98 transitions.
[2021-10-29 00:00:13,424 INFO  L425         BuchiCegarLoop]: ======== Iteration 3============
[2021-10-29 00:00:13,424 INFO  L72            BuchiIsEmpty]: Start buchiIsEmpty. Operand 66 states and 98 transitions.
[2021-10-29 00:00:13,426 INFO  L131   ngComponentsAnalysis]: Automaton has 4 accepting balls. 64
[2021-10-29 00:00:13,426 INFO  L87            BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-29 00:00:13,426 INFO  L119           BuchiIsEmpty]: Starting construction of run
[2021-10-29 00:00:13,427 INFO  L842         BuchiCegarLoop]: Counterexample stem histogram [1, 1]
[2021-10-29 00:00:13,427 INFO  L843         BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-29 00:00:13,427 INFO  L791   eck$LassoCheckResult]: Stem: 189#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(15);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 190#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_~p1~0, main_~lk1~0, main_~p2~0, main_~lk2~0, main_~p3~0, main_~lk3~0, main_~p4~0, main_~lk4~0, main_~p5~0, main_~lk5~0, main_~cond~0;main_~p1~0 := main_#t~nondet7;havoc main_#t~nondet7;havoc main_~lk1~0;main_~p2~0 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~lk2~0;main_~p3~0 := main_#t~nondet9;havoc main_#t~nondet9;havoc main_~lk3~0;main_~p4~0 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~lk4~0;main_~p5~0 := main_#t~nondet11;havoc main_#t~nondet11;havoc main_~lk5~0;havoc main_~cond~0; 200#L85-1 
[2021-10-29 00:00:13,427 INFO  L793   eck$LassoCheckResult]: Loop: 200#L85-1 assume !false;main_~cond~0 := main_#t~nondet12;havoc main_#t~nondet12; 224#L28 assume !(0 == main_~cond~0);main_~lk1~0 := 0;main_~lk2~0 := 0;main_~lk3~0 := 0;main_~lk4~0 := 0;main_~lk5~0 := 0; 222#L43 assume !(0 != main_~p1~0); 219#L43-2 assume !(0 != main_~p2~0); 217#L47-1 assume !(0 != main_~p3~0); 215#L51-1 assume 0 != main_~p4~0;main_~lk4~0 := 1; 214#L55-1 assume 0 != main_~p5~0;main_~lk5~0 := 1; 212#L59-1 assume !(0 != main_~p1~0); 213#L65-1 assume !(0 != main_~p2~0); 235#L70-1 assume !(0 != main_~p3~0); 231#L75-1 assume !(0 != main_~p4~0); 228#L80-1 assume !(0 != main_~p5~0); 200#L85-1 
[2021-10-29 00:00:13,432 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-29 00:00:13,432 INFO  L85        PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times
[2021-10-29 00:00:13,433 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-29 00:00:13,433 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864088146]
[2021-10-29 00:00:13,433 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-29 00:00:13,434 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-29 00:00:13,450 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-29 00:00:13,451 INFO  L355             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-29 00:00:13,470 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-29 00:00:13,474 INFO  L133   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-29 00:00:13,475 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-29 00:00:13,475 INFO  L85        PathProgramCache]: Analyzing trace with hash -1802449101, now seen corresponding path program 1 times
[2021-10-29 00:00:13,475 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-29 00:00:13,475 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393518633]
[2021-10-29 00:00:13,476 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-29 00:00:13,481 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-29 00:00:13,525 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-29 00:00:13,568 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-29 00:00:13,568 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-29 00:00:13,569 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393518633]
[2021-10-29 00:00:13,569 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393518633] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-29 00:00:13,569 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-29 00:00:13,569 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-29 00:00:13,570 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20680548]
[2021-10-29 00:00:13,570 INFO  L808   eck$LassoCheckResult]: loop already infeasible
[2021-10-29 00:00:13,570 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-29 00:00:13,571 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-29 00:00:13,571 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-29 00:00:13,571 INFO  L87              Difference]: Start difference. First operand 66 states and 98 transitions. cyclomatic complexity: 36 Second operand  has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-29 00:00:13,597 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-29 00:00:13,597 INFO  L93              Difference]: Finished difference Result 126 states and 182 transitions.
[2021-10-29 00:00:13,598 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-29 00:00:13,599 INFO  L82        GeneralOperation]: Start removeNonLiveStates. Operand 126 states and 182 transitions.
[2021-10-29 00:00:13,604 INFO  L131   ngComponentsAnalysis]: Automaton has 8 accepting balls. 124
[2021-10-29 00:00:13,606 INFO  L88        GeneralOperation]: Finished removeNonLiveStates. Reduced from 126 states to 126 states and 182 transitions.
[2021-10-29 00:00:13,607 INFO  L87         BuchiClosureNwa]: Accepting states before buchiClosure: 126
[2021-10-29 00:00:13,607 INFO  L106        BuchiClosureNwa]: Accepting states after buchiClosure: 126
[2021-10-29 00:00:13,607 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 126 states and 182 transitions.
[2021-10-29 00:00:13,608 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-10-29 00:00:13,609 INFO  L681         BuchiCegarLoop]: Abstraction has 126 states and 182 transitions.
[2021-10-29 00:00:13,609 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 126 states and 182 transitions.
[2021-10-29 00:00:13,618 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126.
[2021-10-29 00:00:13,619 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 126 states, 126 states have (on average 1.4444444444444444) internal successors, (182), 125 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-29 00:00:13,620 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 182 transitions.
[2021-10-29 00:00:13,620 INFO  L704         BuchiCegarLoop]: Abstraction has 126 states and 182 transitions.
[2021-10-29 00:00:13,621 INFO  L587         BuchiCegarLoop]: Abstraction has 126 states and 182 transitions.
[2021-10-29 00:00:13,621 INFO  L425         BuchiCegarLoop]: ======== Iteration 4============
[2021-10-29 00:00:13,621 INFO  L72            BuchiIsEmpty]: Start buchiIsEmpty. Operand 126 states and 182 transitions.
[2021-10-29 00:00:13,623 INFO  L131   ngComponentsAnalysis]: Automaton has 8 accepting balls. 124
[2021-10-29 00:00:13,623 INFO  L87            BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-29 00:00:13,623 INFO  L119           BuchiIsEmpty]: Starting construction of run
[2021-10-29 00:00:13,623 INFO  L842         BuchiCegarLoop]: Counterexample stem histogram [1, 1]
[2021-10-29 00:00:13,624 INFO  L843         BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-29 00:00:13,624 INFO  L791   eck$LassoCheckResult]: Stem: 385#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(15);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 386#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_~p1~0, main_~lk1~0, main_~p2~0, main_~lk2~0, main_~p3~0, main_~lk3~0, main_~p4~0, main_~lk4~0, main_~p5~0, main_~lk5~0, main_~cond~0;main_~p1~0 := main_#t~nondet7;havoc main_#t~nondet7;havoc main_~lk1~0;main_~p2~0 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~lk2~0;main_~p3~0 := main_#t~nondet9;havoc main_#t~nondet9;havoc main_~lk3~0;main_~p4~0 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~lk4~0;main_~p5~0 := main_#t~nondet11;havoc main_#t~nondet11;havoc main_~lk5~0;havoc main_~cond~0; 400#L85-1 
[2021-10-29 00:00:13,624 INFO  L793   eck$LassoCheckResult]: Loop: 400#L85-1 assume !false;main_~cond~0 := main_#t~nondet12;havoc main_#t~nondet12; 435#L28 assume !(0 == main_~cond~0);main_~lk1~0 := 0;main_~lk2~0 := 0;main_~lk3~0 := 0;main_~lk4~0 := 0;main_~lk5~0 := 0; 431#L43 assume !(0 != main_~p1~0); 428#L43-2 assume !(0 != main_~p2~0); 426#L47-1 assume !(0 != main_~p3~0); 425#L51-1 assume !(0 != main_~p4~0); 421#L55-1 assume 0 != main_~p5~0;main_~lk5~0 := 1; 422#L59-1 assume !(0 != main_~p1~0); 447#L65-1 assume !(0 != main_~p2~0); 445#L70-1 assume !(0 != main_~p3~0); 442#L75-1 assume !(0 != main_~p4~0); 439#L80-1 assume !(0 != main_~p5~0); 400#L85-1 
[2021-10-29 00:00:13,624 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-29 00:00:13,625 INFO  L85        PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 4 times
[2021-10-29 00:00:13,625 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-29 00:00:13,625 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522581661]
[2021-10-29 00:00:13,625 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-29 00:00:13,626 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-29 00:00:13,635 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-29 00:00:13,635 INFO  L355             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-29 00:00:13,655 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-29 00:00:13,658 INFO  L133   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-29 00:00:13,659 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-29 00:00:13,659 INFO  L85        PathProgramCache]: Analyzing trace with hash -27441739, now seen corresponding path program 1 times
[2021-10-29 00:00:13,659 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-29 00:00:13,660 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988858303]
[2021-10-29 00:00:13,667 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-29 00:00:13,667 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-29 00:00:13,677 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-29 00:00:13,689 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-29 00:00:13,689 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-29 00:00:13,690 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988858303]
[2021-10-29 00:00:13,690 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988858303] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-29 00:00:13,690 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-29 00:00:13,690 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-10-29 00:00:13,690 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515292849]
[2021-10-29 00:00:13,691 INFO  L808   eck$LassoCheckResult]: loop already infeasible
[2021-10-29 00:00:13,691 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-29 00:00:13,692 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-29 00:00:13,692 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-29 00:00:13,692 INFO  L87              Difference]: Start difference. First operand 126 states and 182 transitions. cyclomatic complexity: 64 Second operand  has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-29 00:00:13,721 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-29 00:00:13,721 INFO  L93              Difference]: Finished difference Result 242 states and 338 transitions.
[2021-10-29 00:00:13,722 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-29 00:00:13,722 INFO  L82        GeneralOperation]: Start removeNonLiveStates. Operand 242 states and 338 transitions.
[2021-10-29 00:00:13,726 INFO  L131   ngComponentsAnalysis]: Automaton has 16 accepting balls. 240
[2021-10-29 00:00:13,734 INFO  L88        GeneralOperation]: Finished removeNonLiveStates. Reduced from 242 states to 242 states and 338 transitions.
[2021-10-29 00:00:13,734 INFO  L87         BuchiClosureNwa]: Accepting states before buchiClosure: 242
[2021-10-29 00:00:13,735 INFO  L106        BuchiClosureNwa]: Accepting states after buchiClosure: 242
[2021-10-29 00:00:13,739 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 242 states and 338 transitions.
[2021-10-29 00:00:13,742 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-10-29 00:00:13,742 INFO  L681         BuchiCegarLoop]: Abstraction has 242 states and 338 transitions.
[2021-10-29 00:00:13,742 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 242 states and 338 transitions.
[2021-10-29 00:00:13,764 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242.
[2021-10-29 00:00:13,765 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 242 states, 242 states have (on average 1.396694214876033) internal successors, (338), 241 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-29 00:00:13,768 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 338 transitions.
[2021-10-29 00:00:13,768 INFO  L704         BuchiCegarLoop]: Abstraction has 242 states and 338 transitions.
[2021-10-29 00:00:13,768 INFO  L587         BuchiCegarLoop]: Abstraction has 242 states and 338 transitions.
[2021-10-29 00:00:13,768 INFO  L425         BuchiCegarLoop]: ======== Iteration 5============
[2021-10-29 00:00:13,769 INFO  L72            BuchiIsEmpty]: Start buchiIsEmpty. Operand 242 states and 338 transitions.
[2021-10-29 00:00:13,770 INFO  L131   ngComponentsAnalysis]: Automaton has 16 accepting balls. 240
[2021-10-29 00:00:13,771 INFO  L87            BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-29 00:00:13,771 INFO  L119           BuchiIsEmpty]: Starting construction of run
[2021-10-29 00:00:13,771 INFO  L842         BuchiCegarLoop]: Counterexample stem histogram [1, 1]
[2021-10-29 00:00:13,771 INFO  L843         BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-29 00:00:13,771 INFO  L791   eck$LassoCheckResult]: Stem: 759#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(15);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 760#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_~p1~0, main_~lk1~0, main_~p2~0, main_~lk2~0, main_~p3~0, main_~lk3~0, main_~p4~0, main_~lk4~0, main_~p5~0, main_~lk5~0, main_~cond~0;main_~p1~0 := main_#t~nondet7;havoc main_#t~nondet7;havoc main_~lk1~0;main_~p2~0 := main_#t~nondet8;havoc main_#t~nondet8;havoc main_~lk2~0;main_~p3~0 := main_#t~nondet9;havoc main_#t~nondet9;havoc main_~lk3~0;main_~p4~0 := main_#t~nondet10;havoc main_#t~nondet10;havoc main_~lk4~0;main_~p5~0 := main_#t~nondet11;havoc main_#t~nondet11;havoc main_~lk5~0;havoc main_~cond~0; 773#L85-1 
[2021-10-29 00:00:13,772 INFO  L793   eck$LassoCheckResult]: Loop: 773#L85-1 assume !false;main_~cond~0 := main_#t~nondet12;havoc main_#t~nondet12; 836#L28 assume !(0 == main_~cond~0);main_~lk1~0 := 0;main_~lk2~0 := 0;main_~lk3~0 := 0;main_~lk4~0 := 0;main_~lk5~0 := 0; 833#L43 assume !(0 != main_~p1~0); 829#L43-2 assume !(0 != main_~p2~0); 826#L47-1 assume !(0 != main_~p3~0); 820#L51-1 assume !(0 != main_~p4~0); 795#L55-1 assume !(0 != main_~p5~0); 796#L59-1 assume !(0 != main_~p1~0); 853#L65-1 assume !(0 != main_~p2~0); 842#L70-1 assume !(0 != main_~p3~0); 821#L75-1 assume !(0 != main_~p4~0); 823#L80-1 assume !(0 != main_~p5~0); 773#L85-1 
[2021-10-29 00:00:13,772 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-29 00:00:13,772 INFO  L85        PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 5 times
[2021-10-29 00:00:13,772 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-29 00:00:13,773 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495786450]
[2021-10-29 00:00:13,773 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-29 00:00:13,773 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-29 00:00:13,781 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-29 00:00:13,781 INFO  L355             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-29 00:00:13,788 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-29 00:00:13,792 INFO  L133   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-29 00:00:13,792 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-29 00:00:13,792 INFO  L85        PathProgramCache]: Analyzing trace with hash 29816563, now seen corresponding path program 1 times
[2021-10-29 00:00:13,792 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-29 00:00:13,793 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854095344]
[2021-10-29 00:00:13,793 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-29 00:00:13,793 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-29 00:00:13,797 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-29 00:00:13,797 INFO  L355             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-29 00:00:13,799 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-29 00:00:13,802 INFO  L133   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-29 00:00:13,803 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-29 00:00:13,803 INFO  L85        PathProgramCache]: Analyzing trace with hash 1243965365, now seen corresponding path program 1 times
[2021-10-29 00:00:13,803 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-29 00:00:13,804 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130740104]
[2021-10-29 00:00:13,804 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-29 00:00:13,804 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-29 00:00:13,815 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-29 00:00:13,816 INFO  L355             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-29 00:00:13,824 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-29 00:00:13,829 INFO  L133   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-29 00:00:14,304 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.10 12:00:14 BoogieIcfgContainer
[2021-10-29 00:00:14,304 INFO  L132        PluginConnector]: ------------------------ END BuchiAutomizer----------------------------
[2021-10-29 00:00:14,305 INFO  L113        PluginConnector]: ------------------------Witness Printer----------------------------
[2021-10-29 00:00:14,305 INFO  L271        PluginConnector]: Initializing Witness Printer...
[2021-10-29 00:00:14,305 INFO  L275        PluginConnector]: Witness Printer initialized
[2021-10-29 00:00:14,305 INFO  L185        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:00:12" (3/4) ...
[2021-10-29 00:00:14,308 INFO  L134         WitnessPrinter]: Generating witness for non-termination counterexample
[2021-10-29 00:00:14,363 INFO  L141         WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f2e628-10e2-4dbb-a126-a923bf091ab4/bin/uautomizer-GMMbpWq8iD/witness.graphml
[2021-10-29 00:00:14,363 INFO  L132        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-10-29 00:00:14,365 INFO  L168              Benchmark]: Toolchain (without parser) took 2304.04 ms. Allocated memory was 90.2 MB in the beginning and 127.9 MB in the end (delta: 37.7 MB). Free memory was 54.5 MB in the beginning and 62.6 MB in the end (delta: -8.1 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB.
[2021-10-29 00:00:14,365 INFO  L168              Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 90.2 MB. Free memory was 63.4 MB in the beginning and 63.3 MB in the end (delta: 28.4 kB). There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-29 00:00:14,366 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 240.39 ms. Allocated memory was 90.2 MB in the beginning and 127.9 MB in the end (delta: 37.7 MB). Free memory was 54.4 MB in the beginning and 101.9 MB in the end (delta: -47.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
[2021-10-29 00:00:14,366 INFO  L168              Benchmark]: Boogie Procedure Inliner took 32.44 ms. Allocated memory is still 127.9 MB. Free memory was 101.9 MB in the beginning and 100.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
[2021-10-29 00:00:14,367 INFO  L168              Benchmark]: Boogie Preprocessor took 20.91 ms. Allocated memory is still 127.9 MB. Free memory was 100.3 MB in the beginning and 99.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
[2021-10-29 00:00:14,367 INFO  L168              Benchmark]: RCFGBuilder took 298.52 ms. Allocated memory is still 127.9 MB. Free memory was 99.2 MB in the beginning and 89.2 MB in the end (delta: 10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
[2021-10-29 00:00:14,368 INFO  L168              Benchmark]: BuchiAutomizer took 1647.70 ms. Allocated memory is still 127.9 MB. Free memory was 88.7 MB in the beginning and 64.7 MB in the end (delta: 24.0 MB). Peak memory consumption was 23.8 MB. Max. memory is 16.1 GB.
[2021-10-29 00:00:14,368 INFO  L168              Benchmark]: Witness Printer took 58.75 ms. Allocated memory is still 127.9 MB. Free memory was 64.7 MB in the beginning and 62.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
[2021-10-29 00:00:14,371 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.12 ms. Allocated memory is still 90.2 MB. Free memory was 63.4 MB in the beginning and 63.3 MB in the end (delta: 28.4 kB). There was no memory consumed. Max. memory is 16.1 GB.
 * CACSL2BoogieTranslator took 240.39 ms. Allocated memory was 90.2 MB in the beginning and 127.9 MB in the end (delta: 37.7 MB). Free memory was 54.4 MB in the beginning and 101.9 MB in the end (delta: -47.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
 * Boogie Procedure Inliner took 32.44 ms. Allocated memory is still 127.9 MB. Free memory was 101.9 MB in the beginning and 100.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
 * Boogie Preprocessor took 20.91 ms. Allocated memory is still 127.9 MB. Free memory was 100.3 MB in the beginning and 99.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
 * RCFGBuilder took 298.52 ms. Allocated memory is still 127.9 MB. Free memory was 99.2 MB in the beginning and 89.2 MB in the end (delta: 10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
 * BuchiAutomizer took 1647.70 ms. Allocated memory is still 127.9 MB. Free memory was 88.7 MB in the beginning and 64.7 MB in the end (delta: 24.0 MB). Peak memory consumption was 23.8 MB. Max. memory is 16.1 GB.
 * Witness Printer took 58.75 ms. Allocated memory is still 127.9 MB. Free memory was 64.7 MB in the beginning and 62.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: Constructed decomposition of program
    Your program was decomposed into 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 242 locations.
  - StatisticsResult: Timing statistics
    BüchiAutomizer plugin needed 1.5s and 5 iterations.  TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 242 states and ocurred in iteration 4.	Nontrivial modules had stage [0, 0, 0, 0, 0].	InterpolantCoveringCapabilityFinite: 0/0	InterpolantCoveringCapabilityBuchi: 0/0	HoareTripleCheckerStatistics: 177 SDtfs, 89 SDslu, 100 SDs, 0 SdLazy, 20 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time	LassoAnalysisResults: nont1 unkn0 SFLI4 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0	LassoNonterminationAnalysisSatUnbounded: 0	LassoNonterminationAnalysisUnsat: 0	LassoNonterminationAnalysisUnknown: 0	LassoNonterminationAnalysisTime: 0.0s	
  - TerminationAnalysisResult: Nontermination possible
    Buchi Automizer proved that your program is nonterminating for some inputs
  - FixpointNonTerminationResult [Line: 26]: Nontermination argument in form of an infinite program execution.
    Nontermination argument in form of an infinite execution
State at position 0 is
{NULL=3824}
State at position 1 is
{NULL=3827, NULL=0, p1=0, \result=0, p3=0, p2=0, p5=0, NULL=3824, p4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4bf1f0ce=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6d2a4108=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@159a6436=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@79ce306b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3d7dc81c=0, cond=11, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@260fcba=11, NULL=3826, NULL=0, NULL=0, NULL=0, NULL=3825, lk3=0, lk4=0, lk5=0, NULL=0, lk1=0, lk2=0}
  - StatisticsResult: NonterminationArgumentStatistics
    Fixpoint
  - NonterminatingLassoResult [Line: 26]: Nonterminating execution
    Found a nonterminating execution for the following lasso shaped sequence of statements.
Stem:
[L8]         int p1 = __VERIFIER_nondet_int();
[L9]         int lk1;
[L11]        int p2 = __VERIFIER_nondet_int();
[L12]        int lk2;
[L14]        int p3 = __VERIFIER_nondet_int();
[L15]        int lk3;
[L17]        int p4 = __VERIFIER_nondet_int();
[L18]        int lk4;
[L20]        int p5 = __VERIFIER_nondet_int();
[L21]        int lk5;
[L24]        int cond;
Loop:
[L26]  COND TRUE   1
[L27]              cond = __VERIFIER_nondet_int()
[L28]  COND FALSE  !(cond == 0)
[L31]              lk1 = 0
[L33]              lk2 = 0
[L35]              lk3 = 0
[L37]              lk4 = 0
[L39]              lk5 = 0
[L43]  COND FALSE  !(p1 != 0)
[L47]  COND FALSE  !(p2 != 0)
[L51]  COND FALSE  !(p3 != 0)
[L55]  COND FALSE  !(p4 != 0)
[L59]  COND FALSE  !(p5 != 0)
[L65]  COND FALSE  !(p1 != 0)
[L70]  COND FALSE  !(p2 != 0)
[L75]  COND FALSE  !(p3 != 0)
[L80]  COND FALSE  !(p4 != 0)
[L85]  COND FALSE  !(p5 != 0)
End of lasso representation.
RESULT: Ultimate proved your program to be incorrect!
[2021-10-29 00:00:14,414 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2f2e628-10e2-4dbb-a126-a923bf091ab4/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0
Received shutdown request...