./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/bench-exp2x3.wvr.c --full-output --architecture 32bit


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


Checking for memory safety (deref-memtrack)
Using default analysis
Version 2329fc70
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998e9d0f-7fdf-4a19-a8a1-3974eaf44b57/bin/ugemcutter-rbreBovr8w/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998e9d0f-7fdf-4a19-a8a1-3974eaf44b57/bin/ugemcutter-rbreBovr8w/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998e9d0f-7fdf-4a19-a8a1-3974eaf44b57/bin/ugemcutter-rbreBovr8w/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998e9d0f-7fdf-4a19-a8a1-3974eaf44b57/bin/ugemcutter-rbreBovr8w/config/GemCutterMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/bench-exp2x3.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998e9d0f-7fdf-4a19-a8a1-3974eaf44b57/bin/ugemcutter-rbreBovr8w/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998e9d0f-7fdf-4a19-a8a1-3974eaf44b57/bin/ugemcutter-rbreBovr8w --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )

 --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ebb6bba6491ab996b2a2d1f88baf86906cd5ba5ce7e0ad4dc20017ded9089a97
--- Real Ultimate output ---
[0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset.
This is Ultimate 0.2.2-dev-2329fc7
[2022-12-13 07:01:20,947 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-12-13 07:01:20,949 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-12-13 07:01:20,964 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-12-13 07:01:20,964 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-12-13 07:01:20,965 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-12-13 07:01:20,966 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-12-13 07:01:20,966 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-12-13 07:01:20,967 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-12-13 07:01:20,968 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-12-13 07:01:20,969 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2022-12-13 07:01:20,969 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-12-13 07:01:20,969 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-12-13 07:01:20,970 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-12-13 07:01:20,971 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-12-13 07:01:20,972 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-12-13 07:01:20,972 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-12-13 07:01:20,973 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-12-13 07:01:20,974 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-12-13 07:01:20,975 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-12-13 07:01:20,976 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-12-13 07:01:20,977 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-12-13 07:01:20,977 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-12-13 07:01:20,978 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-12-13 07:01:20,980 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-12-13 07:01:20,980 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-12-13 07:01:20,980 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-12-13 07:01:20,981 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-12-13 07:01:20,981 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-12-13 07:01:20,982 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-12-13 07:01:20,982 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-12-13 07:01:20,982 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-12-13 07:01:20,983 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-12-13 07:01:20,983 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-12-13 07:01:20,984 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-12-13 07:01:20,984 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-12-13 07:01:20,985 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-12-13 07:01:20,985 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-12-13 07:01:20,985 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2022-12-13 07:01:20,986 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2022-12-13 07:01:20,986 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-12-13 07:01:20,987 INFO  L101        SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998e9d0f-7fdf-4a19-a8a1-3974eaf44b57/bin/ugemcutter-rbreBovr8w/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf
[2022-12-13 07:01:21,001 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-12-13 07:01:21,001 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-12-13 07:01:21,008 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-12-13 07:01:21,008 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-12-13 07:01:21,009 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-12-13 07:01:21,009 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-12-13 07:01:21,010 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-12-13 07:01:21,010 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-12-13 07:01:21,010 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-12-13 07:01:21,010 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-12-13 07:01:21,011 INFO  L138        SettingsManager]:  * sizeof long=4
[2022-12-13 07:01:21,011 INFO  L138        SettingsManager]:  * Check unreachability of error function in SV-COMP mode=false
[2022-12-13 07:01:21,011 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-12-13 07:01:21,011 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2022-12-13 07:01:21,011 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-12-13 07:01:21,012 INFO  L138        SettingsManager]:  * Check for the main procedure if all allocated memory was freed=true
[2022-12-13 07:01:21,012 INFO  L138        SettingsManager]:  * Bitprecise bitfields=true
[2022-12-13 07:01:21,012 INFO  L138        SettingsManager]:  * SV-COMP memtrack compatibility mode=true
[2022-12-13 07:01:21,012 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-12-13 07:01:21,012 INFO  L138        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2022-12-13 07:01:21,012 INFO  L138        SettingsManager]:  * sizeof long double=12
[2022-12-13 07:01:21,013 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-12-13 07:01:21,013 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-12-13 07:01:21,013 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-12-13 07:01:21,013 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-12-13 07:01:21,013 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-12-13 07:01:21,014 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-12-13 07:01:21,014 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-12-13 07:01:21,014 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-12-13 07:01:21,014 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-12-13 07:01:21,014 INFO  L138        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2022-12-13 07:01:21,015 INFO  L138        SettingsManager]:  * Abstraction used for commutativity in POR=VARIABLES_GLOBAL
[2022-12-13 07:01:21,015 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA
[2022-12-13 07:01:21,015 INFO  L138        SettingsManager]:  * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE
[2022-12-13 07:01:21,015 INFO  L138        SettingsManager]:  * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER
[2022-12-13 07:01:21,015 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998e9d0f-7fdf-4a19-a8a1-3974eaf44b57/bin/ugemcutter-rbreBovr8w/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_998e9d0f-7fdf-4a19-a8a1-3974eaf44b57/bin/ugemcutter-rbreBovr8w
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(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter
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 -> ebb6bba6491ab996b2a2d1f88baf86906cd5ba5ce7e0ad4dc20017ded9089a97
[2022-12-13 07:01:21,183 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-12-13 07:01:21,203 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-12-13 07:01:21,205 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-12-13 07:01:21,206 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-12-13 07:01:21,207 INFO  L275        PluginConnector]: CDTParser initialized
[2022-12-13 07:01:21,208 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998e9d0f-7fdf-4a19-a8a1-3974eaf44b57/bin/ugemcutter-rbreBovr8w/../../sv-benchmarks/c/weaver/bench-exp2x3.wvr.c
[2022-12-13 07:01:23,755 INFO  L500              CDTParser]: Created temporary CDT project at NULL
[2022-12-13 07:01:23,878 INFO  L351              CDTParser]: Found 1 translation units.
[2022-12-13 07:01:23,878 INFO  L172              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998e9d0f-7fdf-4a19-a8a1-3974eaf44b57/sv-benchmarks/c/weaver/bench-exp2x3.wvr.c
[2022-12-13 07:01:23,883 INFO  L394              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998e9d0f-7fdf-4a19-a8a1-3974eaf44b57/bin/ugemcutter-rbreBovr8w/data/6d05f5841/4b3792ef2de540dd86fc3dd607fa419b/FLAG3cca38fed
[2022-12-13 07:01:23,893 INFO  L402              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998e9d0f-7fdf-4a19-a8a1-3974eaf44b57/bin/ugemcutter-rbreBovr8w/data/6d05f5841/4b3792ef2de540dd86fc3dd607fa419b
[2022-12-13 07:01:23,895 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-12-13 07:01:23,896 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2022-12-13 07:01:23,897 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-12-13 07:01:23,897 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-12-13 07:01:23,900 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-12-13 07:01:23,901 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:01:23" (1/1) ...
[2022-12-13 07:01:23,902 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64189de5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:01:23, skipping insertion in model container
[2022-12-13 07:01:23,902 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:01:23" (1/1) ...
[2022-12-13 07:01:23,908 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-12-13 07:01:23,920 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-12-13 07:01:24,038 WARN  L237   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_998e9d0f-7fdf-4a19-a8a1-3974eaf44b57/sv-benchmarks/c/weaver/bench-exp2x3.wvr.c[2237,2250]
[2022-12-13 07:01:24,042 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-12-13 07:01:24,049 INFO  L203         MainTranslator]: Completed pre-run
[2022-12-13 07:01:24,064 WARN  L237   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_998e9d0f-7fdf-4a19-a8a1-3974eaf44b57/sv-benchmarks/c/weaver/bench-exp2x3.wvr.c[2237,2250]
[2022-12-13 07:01:24,065 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-12-13 07:01:24,075 INFO  L208         MainTranslator]: Completed translation
[2022-12-13 07:01:24,076 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:01:24 WrapperNode
[2022-12-13 07:01:24,076 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-12-13 07:01:24,076 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-12-13 07:01:24,077 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-12-13 07:01:24,077 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-12-13 07:01:24,082 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:01:24" (1/1) ...
[2022-12-13 07:01:24,088 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:01:24" (1/1) ...
[2022-12-13 07:01:24,102 INFO  L138                Inliner]: procedures = 20, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 91
[2022-12-13 07:01:24,102 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-12-13 07:01:24,103 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-12-13 07:01:24,103 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-12-13 07:01:24,103 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-12-13 07:01:24,110 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:01:24" (1/1) ...
[2022-12-13 07:01:24,110 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:01:24" (1/1) ...
[2022-12-13 07:01:24,112 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:01:24" (1/1) ...
[2022-12-13 07:01:24,112 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:01:24" (1/1) ...
[2022-12-13 07:01:24,116 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:01:24" (1/1) ...
[2022-12-13 07:01:24,119 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:01:24" (1/1) ...
[2022-12-13 07:01:24,120 INFO  L185        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:01:24" (1/1) ...
[2022-12-13 07:01:24,121 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:01:24" (1/1) ...
[2022-12-13 07:01:24,122 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-12-13 07:01:24,123 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-12-13 07:01:24,123 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-12-13 07:01:24,123 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-12-13 07:01:24,124 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:01:24" (1/1) ...
[2022-12-13 07:01:24,129 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-12-13 07:01:24,136 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998e9d0f-7fdf-4a19-a8a1-3974eaf44b57/bin/ugemcutter-rbreBovr8w/z3
[2022-12-13 07:01:24,147 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998e9d0f-7fdf-4a19-a8a1-3974eaf44b57/bin/ugemcutter-rbreBovr8w/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-12-13 07:01:24,149 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998e9d0f-7fdf-4a19-a8a1-3974eaf44b57/bin/ugemcutter-rbreBovr8w/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-12-13 07:01:24,178 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-12-13 07:01:24,178 INFO  L130     BoogieDeclarations]: Found specification of procedure thread1
[2022-12-13 07:01:24,178 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread1
[2022-12-13 07:01:24,178 INFO  L130     BoogieDeclarations]: Found specification of procedure thread2
[2022-12-13 07:01:24,179 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread2
[2022-12-13 07:01:24,179 INFO  L130     BoogieDeclarations]: Found specification of procedure thread3
[2022-12-13 07:01:24,179 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread3
[2022-12-13 07:01:24,179 INFO  L130     BoogieDeclarations]: Found specification of procedure thread4
[2022-12-13 07:01:24,179 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread4
[2022-12-13 07:01:24,179 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2022-12-13 07:01:24,179 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-12-13 07:01:24,179 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2022-12-13 07:01:24,179 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-12-13 07:01:24,179 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-12-13 07:01:24,179 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2022-12-13 07:01:24,179 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-12-13 07:01:24,180 WARN  L209             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2022-12-13 07:01:24,257 INFO  L235             CfgBuilder]: Building ICFG
[2022-12-13 07:01:24,258 INFO  L261             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-12-13 07:01:24,490 INFO  L276             CfgBuilder]: Performing block encoding
[2022-12-13 07:01:24,496 INFO  L295             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-12-13 07:01:24,496 INFO  L300             CfgBuilder]: Removed 4 assume(true) statements.
[2022-12-13 07:01:24,497 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:01:24 BoogieIcfgContainer
[2022-12-13 07:01:24,498 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-12-13 07:01:24,499 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-12-13 07:01:24,499 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-12-13 07:01:24,501 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-12-13 07:01:24,502 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 07:01:23" (1/3) ...
[2022-12-13 07:01:24,502 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29388016 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:01:24, skipping insertion in model container
[2022-12-13 07:01:24,502 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:01:24" (2/3) ...
[2022-12-13 07:01:24,502 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29388016 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:01:24, skipping insertion in model container
[2022-12-13 07:01:24,503 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:01:24" (3/3) ...
[2022-12-13 07:01:24,504 INFO  L112   eAbstractionObserver]: Analyzing ICFG bench-exp2x3.wvr.c
[2022-12-13 07:01:24,518 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-12-13 07:01:24,518 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations.
[2022-12-13 07:01:24,518 INFO  L515   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2022-12-13 07:01:24,581 INFO  L144    ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions.
[2022-12-13 07:01:24,615 INFO  L100   denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-12-13 07:01:24,616 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2022-12-13 07:01:24,616 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998e9d0f-7fdf-4a19-a8a1-3974eaf44b57/bin/ugemcutter-rbreBovr8w/z3
[2022-12-13 07:01:24,617 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998e9d0f-7fdf-4a19-a8a1-3974eaf44b57/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2022-12-13 07:01:24,618 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998e9d0f-7fdf-4a19-a8a1-3974eaf44b57/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process
[2022-12-13 07:01:24,657 INFO  L159   artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2022-12-13 07:01:24,666 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2022-12-13 07:01:24,671 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5a59efb1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-12-13 07:01:24,671 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 22 error locations.
[2022-12-13 07:01:24,962 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] ===
[2022-12-13 07:01:24,966 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 07:01:24,966 INFO  L85        PathProgramCache]: Analyzing trace with hash -709267257, now seen corresponding path program 1 times
[2022-12-13 07:01:24,973 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 07:01:24,973 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716532207]
[2022-12-13 07:01:24,973 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 07:01:24,974 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 07:01:25,057 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 07:01:25,130 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 07:01:25,130 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 07:01:25,131 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716532207]
[2022-12-13 07:01:25,131 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716532207] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 07:01:25,131 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 07:01:25,131 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-13 07:01:25,132 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739665654]
[2022-12-13 07:01:25,133 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 07:01:25,137 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-12-13 07:01:25,137 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 07:01:25,155 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-12-13 07:01:25,155 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-12-13 07:01:25,156 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-12-13 07:01:25,160 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-12-13 07:01:25,161 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 47.5) internal successors, (95), 2 states have internal predecessors, (95), 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)
[2022-12-13 07:01:25,161 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-12-13 07:01:25,218 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-12-13 07:01:25,219 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-12-13 07:01:25,219 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] ===
[2022-12-13 07:01:25,220 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 07:01:25,220 INFO  L85        PathProgramCache]: Analyzing trace with hash 1849990319, now seen corresponding path program 1 times
[2022-12-13 07:01:25,220 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 07:01:25,220 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848249556]
[2022-12-13 07:01:25,220 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 07:01:25,221 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 07:01:25,323 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 07:01:25,842 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 07:01:25,842 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 07:01:25,843 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848249556]
[2022-12-13 07:01:25,843 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848249556] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 07:01:25,843 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 07:01:25,843 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-12-13 07:01:25,843 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573471145]
[2022-12-13 07:01:25,844 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 07:01:25,845 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-12-13 07:01:25,845 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 07:01:25,846 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-12-13 07:01:25,846 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2022-12-13 07:01:25,846 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-12-13 07:01:25,848 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-12-13 07:01:25,848 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 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)
[2022-12-13 07:01:25,848 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-12-13 07:01:25,848 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-12-13 07:01:26,066 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-12-13 07:01:26,067 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-12-13 07:01:26,067 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-12-13 07:01:26,067 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] ===
[2022-12-13 07:01:26,068 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 07:01:26,068 INFO  L85        PathProgramCache]: Analyzing trace with hash 1549250354, now seen corresponding path program 1 times
[2022-12-13 07:01:26,068 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 07:01:26,068 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254173387]
[2022-12-13 07:01:26,068 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 07:01:26,068 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 07:01:26,100 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 07:01:26,399 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 07:01:26,399 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 07:01:26,400 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254173387]
[2022-12-13 07:01:26,400 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254173387] provided 0 perfect and 1 imperfect interpolant sequences
[2022-12-13 07:01:26,400 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1093648274]
[2022-12-13 07:01:26,400 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 07:01:26,400 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-12-13 07:01:26,401 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998e9d0f-7fdf-4a19-a8a1-3974eaf44b57/bin/ugemcutter-rbreBovr8w/z3
[2022-12-13 07:01:26,428 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998e9d0f-7fdf-4a19-a8a1-3974eaf44b57/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-12-13 07:01:26,430 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998e9d0f-7fdf-4a19-a8a1-3974eaf44b57/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2022-12-13 07:01:26,516 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 07:01:26,518 INFO  L263         TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 7 conjunts are in the unsatisfiable core
[2022-12-13 07:01:26,524 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-12-13 07:01:26,828 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 07:01:26,828 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-12-13 07:01:27,028 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 07:01:27,029 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1093648274] provided 0 perfect and 2 imperfect interpolant sequences
[2022-12-13 07:01:27,029 INFO  L184   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-12-13 07:01:27,029 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 14
[2022-12-13 07:01:27,029 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803990860]
[2022-12-13 07:01:27,029 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-12-13 07:01:27,030 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2022-12-13 07:01:27,030 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 07:01:27,030 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2022-12-13 07:01:27,031 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182
[2022-12-13 07:01:27,031 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-12-13 07:01:27,031 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-12-13 07:01:27,031 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 14 states, 14 states have (on average 11.857142857142858) internal successors, (166), 14 states have internal predecessors, (166), 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)
[2022-12-13 07:01:27,032 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-12-13 07:01:27,032 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2022-12-13 07:01:27,032 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-12-13 07:01:27,574 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-12-13 07:01:27,575 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-12-13 07:01:27,575 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2022-12-13 07:01:27,582 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998e9d0f-7fdf-4a19-a8a1-3974eaf44b57/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2022-12-13 07:01:27,775 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998e9d0f-7fdf-4a19-a8a1-3974eaf44b57/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-12-13 07:01:27,776 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] ===
[2022-12-13 07:01:27,776 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 07:01:27,776 INFO  L85        PathProgramCache]: Analyzing trace with hash 1580582709, now seen corresponding path program 1 times
[2022-12-13 07:01:27,776 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 07:01:27,777 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727370988]
[2022-12-13 07:01:27,777 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 07:01:27,777 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 07:01:27,823 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 07:01:28,573 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 07:01:28,574 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 07:01:28,574 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727370988]
[2022-12-13 07:01:28,574 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727370988] provided 0 perfect and 1 imperfect interpolant sequences
[2022-12-13 07:01:28,574 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [847610535]
[2022-12-13 07:01:28,574 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 07:01:28,574 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-12-13 07:01:28,575 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998e9d0f-7fdf-4a19-a8a1-3974eaf44b57/bin/ugemcutter-rbreBovr8w/z3
[2022-12-13 07:01:28,576 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998e9d0f-7fdf-4a19-a8a1-3974eaf44b57/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-12-13 07:01:28,576 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998e9d0f-7fdf-4a19-a8a1-3974eaf44b57/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2022-12-13 07:01:29,025 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 07:01:29,027 INFO  L263         TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 18 conjunts are in the unsatisfiable core
[2022-12-13 07:01:29,030 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-12-13 07:01:47,825 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 07:01:47,825 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-12-13 07:02:33,780 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 07:02:33,780 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [847610535] provided 0 perfect and 2 imperfect interpolant sequences
[2022-12-13 07:02:33,780 INFO  L184   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-12-13 07:02:33,780 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 13] total 28
[2022-12-13 07:02:33,781 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033938165]
[2022-12-13 07:02:33,781 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-12-13 07:02:33,781 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 28 states
[2022-12-13 07:02:33,781 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 07:02:33,782 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants.
[2022-12-13 07:02:33,782 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=589, Unknown=9, NotChecked=0, Total=756
[2022-12-13 07:02:33,783 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-12-13 07:02:33,783 INFO  L495      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-12-13 07:02:33,784 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 28 states, 28 states have (on average 7.25) internal successors, (203), 28 states have internal predecessors, (203), 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)
[2022-12-13 07:02:33,784 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-12-13 07:02:33,784 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2022-12-13 07:02:33,784 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. 
[2022-12-13 07:02:33,784 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2022-12-13 07:02:37,164 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2022-12-13 07:02:38,244 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2022-12-13 07:02:39,261 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2022-12-13 07:02:57,487 WARN  L233               SmtUtils]: Spent 11.68s on a formula simplification. DAG size of input: 79 DAG size of output: 22 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2022-12-13 07:02:59,504 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2022-12-13 07:03:01,510 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2022-12-13 07:03:04,414 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2022-12-13 07:03:11,296 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2022-12-13 07:03:29,463 WARN  L233               SmtUtils]: Spent 13.86s on a formula simplification. DAG size of input: 94 DAG size of output: 23 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2022-12-13 07:03:31,470 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2022-12-13 07:03:33,547 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2022-12-13 07:03:35,558 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2022-12-13 07:03:37,174 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2022-12-13 07:03:39,183 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []
[2022-12-13 07:03:44,185 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-12-13 07:03:44,185 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2022-12-13 07:03:44,185 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2022-12-13 07:03:44,186 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. 
[2022-12-13 07:03:44,190 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998e9d0f-7fdf-4a19-a8a1-3974eaf44b57/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2022-12-13 07:03:44,387 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998e9d0f-7fdf-4a19-a8a1-3974eaf44b57/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-12-13 07:03:44,388 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 19 more)] ===
[2022-12-13 07:03:44,389 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 07:03:44,389 INFO  L85        PathProgramCache]: Analyzing trace with hash 628343931, now seen corresponding path program 2 times
[2022-12-13 07:03:44,390 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 07:03:44,390 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688682707]
[2022-12-13 07:03:44,390 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 07:03:44,391 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 07:03:44,456 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 07:03:44,713 INFO  L134       CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2022-12-13 07:03:44,713 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 07:03:44,713 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688682707]
[2022-12-13 07:03:44,714 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688682707] provided 0 perfect and 1 imperfect interpolant sequences
[2022-12-13 07:03:44,714 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [249287621]
[2022-12-13 07:03:44,714 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2022-12-13 07:03:44,714 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-12-13 07:03:44,714 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998e9d0f-7fdf-4a19-a8a1-3974eaf44b57/bin/ugemcutter-rbreBovr8w/z3
[2022-12-13 07:03:44,715 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998e9d0f-7fdf-4a19-a8a1-3974eaf44b57/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-12-13 07:03:44,716 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_998e9d0f-7fdf-4a19-a8a1-3974eaf44b57/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2022-12-13 07:04:41,110 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2022-12-13 07:04:41,110 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-12-13 07:04:41,118 INFO  L263         TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 25 conjunts are in the unsatisfiable core
[2022-12-13 07:04:41,121 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-12-13 07:05:04,393 INFO  L134       CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 07:05:04,393 INFO  L328         TraceCheckSpWp]: Computing backward predicates...