./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/psyco/psyco_io_1.c --full-output --architecture 32bit


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


Checking for termination
Using default analysis
Version e943c265
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90bdd89a-37ac-46b7-bce9-3ed03b6c5fd4/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90bdd89a-37ac-46b7-bce9-3ed03b6c5fd4/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90bdd89a-37ac-46b7-bce9-3ed03b6c5fd4/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90bdd89a-37ac-46b7-bce9-3ed03b6c5fd4/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/psyco/psyco_io_1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90bdd89a-37ac-46b7-bce9-3ed03b6c5fd4/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90bdd89a-37ac-46b7-bce9-3ed03b6c5fd4/bin/uautomizer-j4sWxH34Be --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 4f9f01bde8fda2c75630f127009f2a9b60883250862a9d96b52c34a46b69c1e5
................................................................................................................................................................................................................................................................................................................................................................
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-e943c26
[2021-10-21 19:29:42,860 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2021-10-21 19:29:42,862 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2021-10-21 19:29:42,894 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-10-21 19:29:42,894 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-10-21 19:29:42,896 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-10-21 19:29:42,898 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-10-21 19:29:42,900 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2021-10-21 19:29:42,902 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-10-21 19:29:42,904 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-10-21 19:29:42,905 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2021-10-21 19:29:42,906 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-10-21 19:29:42,907 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-10-21 19:29:42,908 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-10-21 19:29:42,910 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-10-21 19:29:42,911 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-10-21 19:29:42,912 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-10-21 19:29:42,913 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-10-21 19:29:42,916 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-10-21 19:29:42,918 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2021-10-21 19:29:42,920 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-10-21 19:29:42,922 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-10-21 19:29:42,923 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2021-10-21 19:29:42,924 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-10-21 19:29:42,928 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-10-21 19:29:42,928 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-10-21 19:29:42,929 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-10-21 19:29:42,930 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-10-21 19:29:42,931 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-10-21 19:29:42,932 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-10-21 19:29:42,932 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-10-21 19:29:42,933 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-10-21 19:29:42,935 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-10-21 19:29:42,936 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2021-10-21 19:29:42,937 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-10-21 19:29:42,938 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2021-10-21 19:29:42,939 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-10-21 19:29:42,939 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-10-21 19:29:42,940 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2021-10-21 19:29:42,941 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2021-10-21 19:29:42,942 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2021-10-21 19:29:42,943 INFO  L101        SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90bdd89a-37ac-46b7-bce9-3ed03b6c5fd4/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf
[2021-10-21 19:29:42,987 INFO  L113        SettingsManager]: Loading preferences was successful
[2021-10-21 19:29:42,987 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2021-10-21 19:29:42,988 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-10-21 19:29:42,988 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-10-21 19:29:42,990 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-10-21 19:29:42,990 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2021-10-21 19:29:42,991 INFO  L138        SettingsManager]:  * Use SBE=true
[2021-10-21 19:29:42,991 INFO  L136        SettingsManager]: Preferences of BuchiAutomizer differ from their defaults:
[2021-10-21 19:29:42,991 INFO  L138        SettingsManager]:  * NCSB implementation=INTSET_LAZY3
[2021-10-21 19:29:42,991 INFO  L138        SettingsManager]:  * Use old map elimination=false
[2021-10-21 19:29:42,993 INFO  L138        SettingsManager]:  * Use external solver (rank synthesis)=false
[2021-10-21 19:29:42,993 INFO  L138        SettingsManager]:  * Use only trivial implications for array writes=true
[2021-10-21 19:29:42,993 INFO  L138        SettingsManager]:  * Rank analysis=LINEAR_WITH_GUESSES
[2021-10-21 19:29:42,994 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-10-21 19:29:42,994 INFO  L138        SettingsManager]:  * sizeof long=4
[2021-10-21 19:29:42,994 INFO  L138        SettingsManager]:  * Check unreachability of error function in SV-COMP mode=false
[2021-10-21 19:29:42,995 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2021-10-21 19:29:42,995 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2021-10-21 19:29:42,995 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2021-10-21 19:29:42,996 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=ASSUME
[2021-10-21 19:29:42,996 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=ASSUME
[2021-10-21 19:29:42,996 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=ASSUME
[2021-10-21 19:29:42,996 INFO  L138        SettingsManager]:  * sizeof long double=12
[2021-10-21 19:29:42,997 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2021-10-21 19:29:42,997 INFO  L138        SettingsManager]:  * Assume nondeterminstic values are in range=false
[2021-10-21 19:29:42,997 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2021-10-21 19:29:42,999 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=ASSUME
[2021-10-21 19:29:43,000 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-10-21 19:29:43,000 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2021-10-21 19:29:43,000 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-10-21 19:29:43,001 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2021-10-21 19:29:43,001 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2021-10-21 19:29:43,002 INFO  L136        SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2021-10-21 19:29:43,003 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_90bdd89a-37ac-46b7-bce9-3ed03b6c5fd4/bin/uautomizer-j4sWxH34Be/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_90bdd89a-37ac-46b7-bce9-3ed03b6c5fd4/bin/uautomizer-j4sWxH34Be
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 -> 4f9f01bde8fda2c75630f127009f2a9b60883250862a9d96b52c34a46b69c1e5
[2021-10-21 19:29:43,325 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2021-10-21 19:29:43,347 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-10-21 19:29:43,349 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-10-21 19:29:43,351 INFO  L271        PluginConnector]: Initializing CDTParser...
[2021-10-21 19:29:43,351 INFO  L275        PluginConnector]: CDTParser initialized
[2021-10-21 19:29:43,352 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90bdd89a-37ac-46b7-bce9-3ed03b6c5fd4/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/psyco/psyco_io_1.c
[2021-10-21 19:29:43,426 INFO  L220              CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90bdd89a-37ac-46b7-bce9-3ed03b6c5fd4/bin/uautomizer-j4sWxH34Be/data/eb22e17a9/65d9cda47ba4413f8d9f2a66e4d8b083/FLAG42bc7fd13
[2021-10-21 19:29:43,865 INFO  L306              CDTParser]: Found 1 translation units.
[2021-10-21 19:29:43,866 INFO  L160              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90bdd89a-37ac-46b7-bce9-3ed03b6c5fd4/sv-benchmarks/c/psyco/psyco_io_1.c
[2021-10-21 19:29:43,875 INFO  L349              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90bdd89a-37ac-46b7-bce9-3ed03b6c5fd4/bin/uautomizer-j4sWxH34Be/data/eb22e17a9/65d9cda47ba4413f8d9f2a66e4d8b083/FLAG42bc7fd13
[2021-10-21 19:29:44,260 INFO  L357              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90bdd89a-37ac-46b7-bce9-3ed03b6c5fd4/bin/uautomizer-j4sWxH34Be/data/eb22e17a9/65d9cda47ba4413f8d9f2a66e4d8b083
[2021-10-21 19:29:44,263 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-10-21 19:29:44,265 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2021-10-21 19:29:44,267 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-10-21 19:29:44,267 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-10-21 19:29:44,272 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2021-10-21 19:29:44,272 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:29:44" (1/1) ...
[2021-10-21 19:29:44,274 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25e6b073 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:29:44, skipping insertion in model container
[2021-10-21 19:29:44,274 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:29:44" (1/1) ...
[2021-10-21 19:29:44,282 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2021-10-21 19:29:44,310 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2021-10-21 19:29:44,528 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_90bdd89a-37ac-46b7-bce9-3ed03b6c5fd4/sv-benchmarks/c/psyco/psyco_io_1.c[11478,11491]
[2021-10-21 19:29:44,531 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2021-10-21 19:29:44,548 INFO  L203         MainTranslator]: Completed pre-run
[2021-10-21 19:29:44,608 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_90bdd89a-37ac-46b7-bce9-3ed03b6c5fd4/sv-benchmarks/c/psyco/psyco_io_1.c[11478,11491]
[2021-10-21 19:29:44,610 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2021-10-21 19:29:44,627 INFO  L208         MainTranslator]: Completed translation
[2021-10-21 19:29:44,628 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:29:44 WrapperNode
[2021-10-21 19:29:44,628 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-10-21 19:29:44,629 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-10-21 19:29:44,629 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-10-21 19:29:44,630 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2021-10-21 19:29:44,640 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:29:44" (1/1) ...
[2021-10-21 19:29:44,649 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:29:44" (1/1) ...
[2021-10-21 19:29:44,678 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-10-21 19:29:44,679 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-10-21 19:29:44,679 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2021-10-21 19:29:44,679 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2021-10-21 19:29:44,688 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:29:44" (1/1) ...
[2021-10-21 19:29:44,689 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:29:44" (1/1) ...
[2021-10-21 19:29:44,691 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:29:44" (1/1) ...
[2021-10-21 19:29:44,692 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:29:44" (1/1) ...
[2021-10-21 19:29:44,697 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:29:44" (1/1) ...
[2021-10-21 19:29:44,704 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:29:44" (1/1) ...
[2021-10-21 19:29:44,706 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:29:44" (1/1) ...
[2021-10-21 19:29:44,709 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-10-21 19:29:44,710 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-10-21 19:29:44,711 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2021-10-21 19:29:44,711 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2021-10-21 19:29:44,712 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:29:44" (1/1) ...
[2021-10-21 19:29:44,720 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-21 19:29:44,750 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90bdd89a-37ac-46b7-bce9-3ed03b6c5fd4/bin/uautomizer-j4sWxH34Be/z3
[2021-10-21 19:29:44,784 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90bdd89a-37ac-46b7-bce9-3ed03b6c5fd4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-21 19:29:44,825 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90bdd89a-37ac-46b7-bce9-3ed03b6c5fd4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process
[2021-10-21 19:29:44,858 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-10-21 19:29:44,858 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-10-21 19:29:44,859 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2021-10-21 19:29:44,859 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-10-21 19:29:45,322 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-10-21 19:29:45,333 INFO  L299             CfgBuilder]: Removed 9 assume(true) statements.
[2021-10-21 19:29:45,336 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:29:45 BoogieIcfgContainer
[2021-10-21 19:29:45,336 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-10-21 19:29:45,337 INFO  L113        PluginConnector]: ------------------------BuchiAutomizer----------------------------
[2021-10-21 19:29:45,337 INFO  L271        PluginConnector]: Initializing BuchiAutomizer...
[2021-10-21 19:29:45,342 INFO  L275        PluginConnector]: BuchiAutomizer initialized
[2021-10-21 19:29:45,343 INFO  L99          BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2021-10-21 19:29:45,343 INFO  L185        PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 07:29:44" (1/3) ...
[2021-10-21 19:29:45,348 INFO  L205        PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7b217893 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:29:45, skipping insertion in model container
[2021-10-21 19:29:45,349 INFO  L99          BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2021-10-21 19:29:45,349 INFO  L185        PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:29:44" (2/3) ...
[2021-10-21 19:29:45,349 INFO  L205        PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7b217893 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:29:45, skipping insertion in model container
[2021-10-21 19:29:45,349 INFO  L99          BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2021-10-21 19:29:45,350 INFO  L185        PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:29:45" (3/3) ...
[2021-10-21 19:29:45,351 INFO  L389   chiAutomizerObserver]: Analyzing ICFG psyco_io_1.c
[2021-10-21 19:29:45,413 INFO  L359         BuchiCegarLoop]: Interprodecural is true
[2021-10-21 19:29:45,413 INFO  L360         BuchiCegarLoop]: Hoare is false
[2021-10-21 19:29:45,413 INFO  L361         BuchiCegarLoop]: Compute interpolants for ForwardPredicates
[2021-10-21 19:29:45,413 INFO  L362         BuchiCegarLoop]: Backedges is STRAIGHT_LINE
[2021-10-21 19:29:45,413 INFO  L363         BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2021-10-21 19:29:45,413 INFO  L364         BuchiCegarLoop]: Difference is false
[2021-10-21 19:29:45,413 INFO  L365         BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA
[2021-10-21 19:29:45,413 INFO  L368         BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop========
[2021-10-21 19:29:45,430 INFO  L72            BuchiIsEmpty]: Start buchiIsEmpty. Operand  has 67 states, 66 states have (on average 1.9090909090909092) internal successors, (126), 66 states have internal predecessors, (126), 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)
[2021-10-21 19:29:45,453 INFO  L131   ngComponentsAnalysis]: Automaton has 1 accepting balls. 53
[2021-10-21 19:29:45,453 INFO  L87            BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-21 19:29:45,454 INFO  L119           BuchiIsEmpty]: Starting construction of run
[2021-10-21 19:29:45,460 INFO  L842         BuchiCegarLoop]: Counterexample stem histogram [1, 1]
[2021-10-21 19:29:45,460 INFO  L843         BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1]
[2021-10-21 19:29:45,461 INFO  L425         BuchiCegarLoop]: ======== Iteration 1============
[2021-10-21 19:29:45,461 INFO  L72            BuchiIsEmpty]: Start buchiIsEmpty. Operand  has 67 states, 66 states have (on average 1.9090909090909092) internal successors, (126), 66 states have internal predecessors, (126), 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)
[2021-10-21 19:29:45,467 INFO  L131   ngComponentsAnalysis]: Automaton has 1 accepting balls. 53
[2021-10-21 19:29:45,467 INFO  L87            BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-21 19:29:45,468 INFO  L119           BuchiIsEmpty]: Starting construction of run
[2021-10-21 19:29:45,468 INFO  L842         BuchiCegarLoop]: Counterexample stem histogram [1, 1]
[2021-10-21 19:29:45,469 INFO  L843         BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1]
[2021-10-21 19:29:45,475 INFO  L791   eck$LassoCheckResult]: Stem: 45#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~m_flush~0 := 1;~m_PipedOutputStream~0 := 2;~m_close~0 := 3;~m_write~0 := 4;~m_connect_1~0 := 5;~m_connect_2~0 := 6; 37#L-1true havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_~P1~0, main_~P2~0, main_~P3~0, main_~P4~0, main_~q~0, main_~method_id~0, main_~this_sink~0, main_~this_sinkConnected~0;main_~q~0 := 0;havoc main_~method_id~0;main_~this_sink~0 := 0;main_~this_sinkConnected~0 := 0; 12#L25-2true 
[2021-10-21 19:29:45,475 INFO  L793   eck$LassoCheckResult]: Loop: 12#L25-2true goto; 10#L337true assume !false;main_~P1~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~P2~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~P3~0 := main_#t~nondet9;havoc main_#t~nondet9;main_~P4~0 := main_#t~nondet10;havoc main_#t~nondet10; 42#L35true assume !(0 == main_~q~0); 56#L55true assume !(1 == main_~q~0); 53#L107true assume !(2 == main_~q~0); 67#L223true assume !(3 == main_~q~0); 12#L25-2true 
[2021-10-21 19:29:45,491 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-21 19:29:45,491 INFO  L82        PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times
[2021-10-21 19:29:45,498 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-21 19:29:45,499 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828078591]
[2021-10-21 19:29:45,499 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-21 19:29:45,501 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-21 19:29:45,589 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-21 19:29:45,589 INFO  L354             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-21 19:29:45,610 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-21 19:29:45,630 INFO  L133   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-21 19:29:45,633 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-21 19:29:45,633 INFO  L82        PathProgramCache]: Analyzing trace with hash 1070475851, now seen corresponding path program 1 times
[2021-10-21 19:29:45,633 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-21 19:29:45,634 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351353548]
[2021-10-21 19:29:45,634 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-21 19:29:45,634 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-21 19:29:45,641 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-21 19:29:45,641 INFO  L354             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-21 19:29:45,645 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-21 19:29:45,649 INFO  L133   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-21 19:29:45,651 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-21 19:29:45,651 INFO  L82        PathProgramCache]: Analyzing trace with hash 150525069, now seen corresponding path program 1 times
[2021-10-21 19:29:45,651 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-21 19:29:45,651 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738623638]
[2021-10-21 19:29:45,652 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-21 19:29:45,652 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-21 19:29:45,667 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-21 19:29:45,749 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-21 19:29:45,749 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-21 19:29:45,749 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738623638]
[2021-10-21 19:29:45,750 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738623638] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-21 19:29:45,750 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-21 19:29:45,750 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-10-21 19:29:45,751 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801953193]
[2021-10-21 19:29:45,836 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-21 19:29:45,852 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-10-21 19:29:45,852 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-10-21 19:29:45,855 INFO  L87              Difference]: Start difference. First operand  has 67 states, 66 states have (on average 1.9090909090909092) internal successors, (126), 66 states have internal predecessors, (126), 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 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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)
[2021-10-21 19:29:45,908 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-21 19:29:45,909 INFO  L93              Difference]: Finished difference Result 66 states and 102 transitions.
[2021-10-21 19:29:45,909 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-10-21 19:29:45,911 INFO  L82        GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 102 transitions.
[2021-10-21 19:29:45,915 INFO  L131   ngComponentsAnalysis]: Automaton has 1 accepting balls. 49
[2021-10-21 19:29:45,920 INFO  L88        GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 52 states and 77 transitions.
[2021-10-21 19:29:45,921 INFO  L87         BuchiClosureNwa]: Accepting states before buchiClosure: 52
[2021-10-21 19:29:45,926 INFO  L106        BuchiClosureNwa]: Accepting states after buchiClosure: 52
[2021-10-21 19:29:45,927 INFO  L73         IsDeterministic]: Start isDeterministic. Operand 52 states and 77 transitions.
[2021-10-21 19:29:45,929 INFO  L80         IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-10-21 19:29:45,929 INFO  L681         BuchiCegarLoop]: Abstraction has 52 states and 77 transitions.
[2021-10-21 19:29:45,957 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 52 states and 77 transitions.
[2021-10-21 19:29:45,972 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52.
[2021-10-21 19:29:45,973 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 52 states, 52 states have (on average 1.4807692307692308) internal successors, (77), 51 states have internal predecessors, (77), 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)
[2021-10-21 19:29:45,975 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 77 transitions.
[2021-10-21 19:29:45,976 INFO  L704         BuchiCegarLoop]: Abstraction has 52 states and 77 transitions.
[2021-10-21 19:29:45,976 INFO  L587         BuchiCegarLoop]: Abstraction has 52 states and 77 transitions.
[2021-10-21 19:29:45,977 INFO  L425         BuchiCegarLoop]: ======== Iteration 2============
[2021-10-21 19:29:45,977 INFO  L72            BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 77 transitions.
[2021-10-21 19:29:45,979 INFO  L131   ngComponentsAnalysis]: Automaton has 1 accepting balls. 49
[2021-10-21 19:29:45,979 INFO  L87            BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-21 19:29:45,979 INFO  L119           BuchiIsEmpty]: Starting construction of run
[2021-10-21 19:29:45,980 INFO  L842         BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1]
[2021-10-21 19:29:45,980 INFO  L843         BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1]
[2021-10-21 19:29:45,980 INFO  L791   eck$LassoCheckResult]: Stem: 187#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~m_flush~0 := 1;~m_PipedOutputStream~0 := 2;~m_close~0 := 3;~m_write~0 := 4;~m_connect_1~0 := 5;~m_connect_2~0 := 6; 182#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_~P1~0, main_~P2~0, main_~P3~0, main_~P4~0, main_~q~0, main_~method_id~0, main_~this_sink~0, main_~this_sinkConnected~0;main_~q~0 := 0;havoc main_~method_id~0;main_~this_sink~0 := 0;main_~this_sinkConnected~0 := 0; 154#L25-2 goto; 152#L337 
[2021-10-21 19:29:45,980 INFO  L793   eck$LassoCheckResult]: Loop: 152#L337 assume !false;main_~P1~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~P2~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~P3~0 := main_#t~nondet9;havoc main_#t~nondet9;main_~P4~0 := main_#t~nondet10;havoc main_#t~nondet10; 153#L35 assume 0 == main_~q~0; 186#L36 assume !(0 != main_#t~nondet11);havoc main_#t~nondet11; 152#L337 
[2021-10-21 19:29:45,981 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-21 19:29:45,982 INFO  L82        PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times
[2021-10-21 19:29:45,982 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-21 19:29:45,982 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263859906]
[2021-10-21 19:29:45,982 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-21 19:29:45,983 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-21 19:29:46,003 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-21 19:29:46,003 INFO  L354             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-21 19:29:46,032 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-21 19:29:46,047 INFO  L133   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-21 19:29:46,052 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-21 19:29:46,053 INFO  L82        PathProgramCache]: Analyzing trace with hash 40826, now seen corresponding path program 1 times
[2021-10-21 19:29:46,054 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-21 19:29:46,054 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350026366]
[2021-10-21 19:29:46,055 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-21 19:29:46,056 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-21 19:29:46,062 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-21 19:29:46,062 INFO  L354             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-21 19:29:46,065 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-21 19:29:46,068 INFO  L133   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-21 19:29:46,068 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-21 19:29:46,069 INFO  L82        PathProgramCache]: Analyzing trace with hash 889540504, now seen corresponding path program 1 times
[2021-10-21 19:29:46,069 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-21 19:29:46,069 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833613964]
[2021-10-21 19:29:46,069 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-21 19:29:46,070 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-21 19:29:46,100 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-21 19:29:46,101 INFO  L354             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-21 19:29:46,115 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-21 19:29:46,122 INFO  L133   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-21 19:29:46,762 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 07:29:46 BoogieIcfgContainer
[2021-10-21 19:29:46,762 INFO  L132        PluginConnector]: ------------------------ END BuchiAutomizer----------------------------
[2021-10-21 19:29:46,763 INFO  L113        PluginConnector]: ------------------------Witness Printer----------------------------
[2021-10-21 19:29:46,763 INFO  L271        PluginConnector]: Initializing Witness Printer...
[2021-10-21 19:29:46,764 INFO  L275        PluginConnector]: Witness Printer initialized
[2021-10-21 19:29:46,764 INFO  L185        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:29:45" (3/4) ...
[2021-10-21 19:29:46,767 INFO  L134         WitnessPrinter]: Generating witness for non-termination counterexample
[2021-10-21 19:29:46,808 INFO  L141         WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90bdd89a-37ac-46b7-bce9-3ed03b6c5fd4/bin/uautomizer-j4sWxH34Be/witness.graphml
[2021-10-21 19:29:46,808 INFO  L132        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-10-21 19:29:46,810 INFO  L168              Benchmark]: Toolchain (without parser) took 2544.05 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 51.5 MB in the beginning and 61.6 MB in the end (delta: -10.1 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB.
[2021-10-21 19:29:46,811 INFO  L168              Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 88.1 MB. Free memory was 67.7 MB in the beginning and 67.7 MB in the end (delta: 43.3 kB). There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-21 19:29:46,812 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 361.31 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 51.3 MB in the beginning and 81.7 MB in the end (delta: -30.5 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB.
[2021-10-21 19:29:46,812 INFO  L168              Benchmark]: Boogie Procedure Inliner took 49.05 ms. Allocated memory is still 107.0 MB. Free memory was 81.5 MB in the beginning and 79.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
[2021-10-21 19:29:46,813 INFO  L168              Benchmark]: Boogie Preprocessor took 30.59 ms. Allocated memory is still 107.0 MB. Free memory was 79.7 MB in the beginning and 78.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
[2021-10-21 19:29:46,814 INFO  L168              Benchmark]: RCFGBuilder took 625.92 ms. Allocated memory is still 107.0 MB. Free memory was 78.2 MB in the beginning and 63.8 MB in the end (delta: 14.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB.
[2021-10-21 19:29:46,815 INFO  L168              Benchmark]: BuchiAutomizer took 1425.37 ms. Allocated memory is still 107.0 MB. Free memory was 63.8 MB in the beginning and 63.3 MB in the end (delta: 570.4 kB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB.
[2021-10-21 19:29:46,815 INFO  L168              Benchmark]: Witness Printer took 45.29 ms. Allocated memory is still 107.0 MB. Free memory was 63.3 MB in the beginning and 61.6 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-21 19:29:46,819 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.24 ms. Allocated memory is still 88.1 MB. Free memory was 67.7 MB in the beginning and 67.7 MB in the end (delta: 43.3 kB). There was no memory consumed. Max. memory is 16.1 GB.
 * CACSL2BoogieTranslator took 361.31 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 51.3 MB in the beginning and 81.7 MB in the end (delta: -30.5 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB.
 * Boogie Procedure Inliner took 49.05 ms. Allocated memory is still 107.0 MB. Free memory was 81.5 MB in the beginning and 79.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
 * Boogie Preprocessor took 30.59 ms. Allocated memory is still 107.0 MB. Free memory was 79.7 MB in the beginning and 78.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
 * RCFGBuilder took 625.92 ms. Allocated memory is still 107.0 MB. Free memory was 78.2 MB in the beginning and 63.8 MB in the end (delta: 14.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB.
 * BuchiAutomizer took 1425.37 ms. Allocated memory is still 107.0 MB. Free memory was 63.8 MB in the beginning and 63.3 MB in the end (delta: 570.4 kB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB.
 * Witness Printer took 45.29 ms. Allocated memory is still 107.0 MB. Free memory was 63.3 MB in the beginning and 61.6 MB in the end (delta: 1.6 MB). There was no memory consumed. 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 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 52 locations.
  - StatisticsResult: Timing statistics
    BüchiAutomizer plugin needed 1.3s and 2 iterations.  TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 21.4ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 52 states and ocurred in iteration 1.	Nontrivial modules had stage [0, 0, 0, 0, 0].	InterpolantCoveringCapabilityFinite: 0/0	InterpolantCoveringCapabilityBuchi: 0/0	HoareTripleCheckerStatistics: 98 SDtfs, 4 SDslu, 73 SDs, 0 SdLazy, 22 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 26.8ms Time	LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 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: 25]: Nontermination argument in form of an infinite program execution.
    Nontermination argument in form of an infinite execution
State at position 0 is
{NULL=25469}
State at position 1 is
{m_PipedOutputStream=2, NULL=25471, NULL=0, \result=0, NULL=25469, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2cbe5a7e=18, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3bd60c9a=17, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@46a2d8fe=16, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2b56996c=19, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@75654bd2=0, m_connect_2=6, m_connect_1=5, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@71150d5b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1450f28d=0, this_sinkConnected=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d91280a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6c7d6cc7=0, NULL=25470, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7edc3b38=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2e696935=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@31eb086d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6e0fee59=0, NULL=0, NULL=0, NULL=0, NULL=25472, P4=19, P3=16, P2=17, P1=18, m_close=3, m_write=4, m_flush=1, this_sink=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@355bcbc6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@268c937a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@52293ed9=0, NULL=0, q=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@19d9882d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b9c932d=0, method_id=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@55b57b0f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3e5b9f84=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7c0ecc76=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@67caead8=0}
  - StatisticsResult: NonterminationArgumentStatistics
    Fixpoint
  - NonterminatingLassoResult [Line: 25]: Nonterminating execution
    Found a nonterminating execution for the following lasso shaped sequence of statements.
Stem:
[L7]         int m_flush = 1;
[L8]         int m_PipedOutputStream = 2;
[L9]         int m_close = 3;
[L10]        int m_write = 4;
[L11]        int m_connect_1 = 5;
[L12]        int m_connect_2 = 6;
[L17]        int q = 0;
[L18]        int method_id;
[L21]        int this_sink = 0;
[L22]        int this_sinkConnected = 0;
Loop:
[L25]  COND TRUE   1
[L28]              int P1=__VERIFIER_nondet_int();
[L29]              int P2=__VERIFIER_nondet_int();
[L30]              int P3=__VERIFIER_nondet_int();
[L31]              int P4=__VERIFIER_nondet_int();
[L35]  COND TRUE   q == 0
[L36]  COND FALSE  !(__VERIFIER_nondet_int())
End of lasso representation.
RESULT: Ultimate proved your program to be incorrect!
[2021-10-21 19:29:46,865 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90bdd89a-37ac-46b7-bce9-3ed03b6c5fd4/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...