./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem05_label34.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version dbf71c69
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_260d14c4-fa86-42bb-898f-8e3f21b0cfb7/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_260d14c4-fa86-42bb-898f-8e3f21b0cfb7/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_260d14c4-fa86-42bb-898f-8e3f21b0cfb7/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_260d14c4-fa86-42bb-898f-8e3f21b0cfb7/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem05_label34.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_260d14c4-fa86-42bb-898f-8e3f21b0cfb7/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_260d14c4-fa86-42bb-898f-8e3f21b0cfb7/bin/uautomizer-J5u9QxTXDZ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d3242806815521ee70a6d1a119a3f5b365a809b559dd29a60629a3443406a51b
--- 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-dbf71c6-m
[2022-10-17 10:55:43,988 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-10-17 10:55:43,991 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-10-17 10:55:44,039 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-10-17 10:55:44,039 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-10-17 10:55:44,045 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-10-17 10:55:44,047 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-10-17 10:55:44,051 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-10-17 10:55:44,053 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-10-17 10:55:44,061 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-10-17 10:55:44,062 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2022-10-17 10:55:44,065 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-10-17 10:55:44,065 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-10-17 10:55:44,068 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-10-17 10:55:44,070 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-10-17 10:55:44,072 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-10-17 10:55:44,074 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-10-17 10:55:44,075 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-10-17 10:55:44,077 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-10-17 10:55:44,087 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-10-17 10:55:44,089 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-10-17 10:55:44,090 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-10-17 10:55:44,094 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-10-17 10:55:44,096 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-10-17 10:55:44,100 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-10-17 10:55:44,101 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-10-17 10:55:44,101 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-10-17 10:55:44,103 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-10-17 10:55:44,104 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-10-17 10:55:44,105 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-10-17 10:55:44,106 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-10-17 10:55:44,107 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-10-17 10:55:44,109 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-10-17 10:55:44,111 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-10-17 10:55:44,112 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-10-17 10:55:44,112 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-10-17 10:55:44,113 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-10-17 10:55:44,113 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-10-17 10:55:44,114 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2022-10-17 10:55:44,115 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2022-10-17 10:55:44,115 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-10-17 10:55:44,116 INFO  L101        SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_260d14c4-fa86-42bb-898f-8e3f21b0cfb7/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf
[2022-10-17 10:55:44,160 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-10-17 10:55:44,163 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-10-17 10:55:44,164 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-10-17 10:55:44,164 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-10-17 10:55:44,165 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-10-17 10:55:44,165 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-10-17 10:55:44,166 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-10-17 10:55:44,166 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-10-17 10:55:44,166 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-10-17 10:55:44,167 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-10-17 10:55:44,168 INFO  L138        SettingsManager]:  * sizeof long=4
[2022-10-17 10:55:44,168 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-10-17 10:55:44,168 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2022-10-17 10:55:44,168 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-10-17 10:55:44,169 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-10-17 10:55:44,169 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-10-17 10:55:44,169 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-10-17 10:55:44,169 INFO  L138        SettingsManager]:  * sizeof long double=12
[2022-10-17 10:55:44,170 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-10-17 10:55:44,170 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-10-17 10:55:44,170 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-10-17 10:55:44,170 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-10-17 10:55:44,170 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-10-17 10:55:44,177 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-10-17 10:55:44,177 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-10-17 10:55:44,177 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-10-17 10:55:44,178 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-10-17 10:55:44,178 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-10-17 10:55:44,178 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-10-17 10:55:44,178 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-10-17 10:55:44,178 INFO  L138        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2022-10-17 10:55:44,179 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2022-10-17 10:55:44,179 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-10-17 10:55:44,179 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_260d14c4-fa86-42bb-898f-8e3f21b0cfb7/bin/uautomizer-J5u9QxTXDZ/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_260d14c4-fa86-42bb-898f-8e3f21b0cfb7/bin/uautomizer-J5u9QxTXDZ
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 ! call(reach_error())) )


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 -> d3242806815521ee70a6d1a119a3f5b365a809b559dd29a60629a3443406a51b
[2022-10-17 10:55:44,455 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-10-17 10:55:44,476 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-10-17 10:55:44,479 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-10-17 10:55:44,480 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-10-17 10:55:44,481 INFO  L275        PluginConnector]: CDTParser initialized
[2022-10-17 10:55:44,482 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_260d14c4-fa86-42bb-898f-8e3f21b0cfb7/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/eca-rers2012/Problem05_label34.c
[2022-10-17 10:55:44,549 INFO  L220              CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_260d14c4-fa86-42bb-898f-8e3f21b0cfb7/bin/uautomizer-J5u9QxTXDZ/data/1105ad389/241c1ec00b2542b3b7f9b025dad2c711/FLAG22e895ef7
[2022-10-17 10:55:45,671 INFO  L306              CDTParser]: Found 1 translation units.
[2022-10-17 10:55:45,672 INFO  L160              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_260d14c4-fa86-42bb-898f-8e3f21b0cfb7/sv-benchmarks/c/eca-rers2012/Problem05_label34.c
[2022-10-17 10:55:45,716 INFO  L349              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_260d14c4-fa86-42bb-898f-8e3f21b0cfb7/bin/uautomizer-J5u9QxTXDZ/data/1105ad389/241c1ec00b2542b3b7f9b025dad2c711/FLAG22e895ef7
[2022-10-17 10:55:45,978 INFO  L357              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_260d14c4-fa86-42bb-898f-8e3f21b0cfb7/bin/uautomizer-J5u9QxTXDZ/data/1105ad389/241c1ec00b2542b3b7f9b025dad2c711
[2022-10-17 10:55:45,981 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-10-17 10:55:45,985 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2022-10-17 10:55:45,986 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-10-17 10:55:45,987 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-10-17 10:55:45,990 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-10-17 10:55:45,991 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:55:45" (1/1) ...
[2022-10-17 10:55:45,992 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2be6eed7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:55:45, skipping insertion in model container
[2022-10-17 10:55:45,992 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:55:45" (1/1) ...
[2022-10-17 10:55:45,999 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-10-17 10:55:46,262 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-10-17 10:55:48,624 WARN  L230   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_260d14c4-fa86-42bb-898f-8e3f21b0cfb7/sv-benchmarks/c/eca-rers2012/Problem05_label34.c[381064,381077]
[2022-10-17 10:55:48,645 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-10-17 10:55:48,655 INFO  L203         MainTranslator]: Completed pre-run
[2022-10-17 10:55:50,173 WARN  L230   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_260d14c4-fa86-42bb-898f-8e3f21b0cfb7/sv-benchmarks/c/eca-rers2012/Problem05_label34.c[381064,381077]
[2022-10-17 10:55:50,180 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-10-17 10:55:50,243 INFO  L208         MainTranslator]: Completed translation
[2022-10-17 10:55:50,244 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:55:50 WrapperNode
[2022-10-17 10:55:50,244 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-10-17 10:55:50,246 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-10-17 10:55:50,246 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-10-17 10:55:50,246 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-10-17 10:55:50,253 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:55:50" (1/1) ...
[2022-10-17 10:55:50,337 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:55:50" (1/1) ...
[2022-10-17 10:55:50,924 INFO  L138                Inliner]: procedures = 21, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 12346
[2022-10-17 10:55:50,925 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-10-17 10:55:50,926 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-10-17 10:55:50,926 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-10-17 10:55:50,926 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-10-17 10:55:50,943 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:55:50" (1/1) ...
[2022-10-17 10:55:50,943 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:55:50" (1/1) ...
[2022-10-17 10:55:51,044 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:55:50" (1/1) ...
[2022-10-17 10:55:51,044 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:55:50" (1/1) ...
[2022-10-17 10:55:51,345 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:55:50" (1/1) ...
[2022-10-17 10:55:51,410 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:55:50" (1/1) ...
[2022-10-17 10:55:51,429 INFO  L185        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:55:50" (1/1) ...
[2022-10-17 10:55:51,454 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:55:50" (1/1) ...
[2022-10-17 10:55:51,515 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-10-17 10:55:51,517 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-10-17 10:55:51,518 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-10-17 10:55:51,518 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-10-17 10:55:51,519 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:55:50" (1/1) ...
[2022-10-17 10:55:51,525 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-10-17 10:55:51,541 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_260d14c4-fa86-42bb-898f-8e3f21b0cfb7/bin/uautomizer-J5u9QxTXDZ/z3
[2022-10-17 10:55:51,552 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_260d14c4-fa86-42bb-898f-8e3f21b0cfb7/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-10-17 10:55:51,570 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_260d14c4-fa86-42bb-898f-8e3f21b0cfb7/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-10-17 10:55:51,608 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-10-17 10:55:51,608 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2022-10-17 10:55:51,608 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-10-17 10:55:51,608 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-10-17 10:55:51,738 INFO  L235             CfgBuilder]: Building ICFG
[2022-10-17 10:55:51,755 INFO  L261             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-10-17 10:56:00,939 INFO  L276             CfgBuilder]: Performing block encoding
[2022-10-17 10:56:00,981 INFO  L295             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-10-17 10:56:00,981 INFO  L300             CfgBuilder]: Removed 1 assume(true) statements.
[2022-10-17 10:56:00,990 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:56:00 BoogieIcfgContainer
[2022-10-17 10:56:00,990 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-10-17 10:56:00,996 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-10-17 10:56:00,996 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-10-17 10:56:01,000 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-10-17 10:56:01,001 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:55:45" (1/3) ...
[2022-10-17 10:56:01,002 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a2c3815 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:56:01, skipping insertion in model container
[2022-10-17 10:56:01,002 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:55:50" (2/3) ...
[2022-10-17 10:56:01,002 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a2c3815 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:56:01, skipping insertion in model container
[2022-10-17 10:56:01,003 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:56:00" (3/3) ...
[2022-10-17 10:56:01,004 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem05_label34.c
[2022-10-17 10:56:01,027 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-10-17 10:56:01,028 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-10-17 10:56:01,171 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-10-17 10:56:01,189 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@4f8ab744, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-10-17 10:56:01,195 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-10-17 10:56:01,212 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 2185 states, 2183 states have (on average 1.8708199725148877) internal successors, (4084), 2184 states have internal predecessors, (4084), 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)
[2022-10-17 10:56:01,387 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1684
[2022-10-17 10:56:01,388 INFO  L187           NwaCegarLoop]: Found error trace
[2022-10-17 10:56:01,392 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-10-17 10:56:01,393 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-10-17 10:56:01,401 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-10-17 10:56:01,403 INFO  L85        PathProgramCache]: Analyzing trace with hash -1073947391, now seen corresponding path program 1 times
[2022-10-17 10:56:01,414 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-10-17 10:56:01,416 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137378066]
[2022-10-17 10:56:01,417 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-10-17 10:56:01,418 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-10-17 10:56:02,588 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat