./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_25-struct_nr_true.i --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 53f42b1a
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a4c763-5850-4470-8afa-9cda194ce9f6/bin/ugemcutter-b9s2R6iq4d/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a4c763-5850-4470-8afa-9cda194ce9f6/bin/ugemcutter-b9s2R6iq4d/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a4c763-5850-4470-8afa-9cda194ce9f6/bin/ugemcutter-b9s2R6iq4d/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a4c763-5850-4470-8afa-9cda194ce9f6/bin/ugemcutter-b9s2R6iq4d/config/GemCutterReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_25-struct_nr_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a4c763-5850-4470-8afa-9cda194ce9f6/bin/ugemcutter-b9s2R6iq4d/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a4c763-5850-4470-8afa-9cda194ce9f6/bin/ugemcutter-b9s2R6iq4d --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 GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4017723c7e4b1f7c431c7e7a6ea6ca9df8ac56fc590cd03021a11577cb455eff
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-53f42b1
[2021-11-20 07:47:16,132 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2021-11-20 07:47:16,134 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2021-11-20 07:47:16,171 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-11-20 07:47:16,172 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-11-20 07:47:16,173 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-11-20 07:47:16,175 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-11-20 07:47:16,178 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2021-11-20 07:47:16,180 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-11-20 07:47:16,181 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-11-20 07:47:16,183 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2021-11-20 07:47:16,184 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-11-20 07:47:16,185 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-11-20 07:47:16,186 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-11-20 07:47:16,188 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-11-20 07:47:16,190 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-11-20 07:47:16,191 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-11-20 07:47:16,193 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-11-20 07:47:16,195 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-11-20 07:47:16,198 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2021-11-20 07:47:16,200 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-11-20 07:47:16,202 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-11-20 07:47:16,203 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2021-11-20 07:47:16,205 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-11-20 07:47:16,208 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-11-20 07:47:16,209 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-11-20 07:47:16,209 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-11-20 07:47:16,211 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-11-20 07:47:16,211 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-11-20 07:47:16,212 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-11-20 07:47:16,219 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-11-20 07:47:16,220 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-11-20 07:47:16,221 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-11-20 07:47:16,222 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2021-11-20 07:47:16,222 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-11-20 07:47:16,223 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2021-11-20 07:47:16,223 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-11-20 07:47:16,223 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-11-20 07:47:16,223 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2021-11-20 07:47:16,224 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2021-11-20 07:47:16,225 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2021-11-20 07:47:16,228 INFO  L101        SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a4c763-5850-4470-8afa-9cda194ce9f6/bin/ugemcutter-b9s2R6iq4d/config/svcomp-Reach-32bit-GemCutter_Default.epf
[2021-11-20 07:47:16,254 INFO  L113        SettingsManager]: Loading preferences was successful
[2021-11-20 07:47:16,254 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2021-11-20 07:47:16,255 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-11-20 07:47:16,255 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-11-20 07:47:16,256 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2021-11-20 07:47:16,256 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2021-11-20 07:47:16,257 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-11-20 07:47:16,257 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2021-11-20 07:47:16,257 INFO  L138        SettingsManager]:  * Use SBE=true
[2021-11-20 07:47:16,257 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-11-20 07:47:16,258 INFO  L138        SettingsManager]:  * sizeof long=4
[2021-11-20 07:47:16,258 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2021-11-20 07:47:16,258 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2021-11-20 07:47:16,258 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2021-11-20 07:47:16,258 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2021-11-20 07:47:16,259 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-11-20 07:47:16,259 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2021-11-20 07:47:16,259 INFO  L138        SettingsManager]:  * sizeof long double=12
[2021-11-20 07:47:16,259 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2021-11-20 07:47:16,260 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2021-11-20 07:47:16,260 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2021-11-20 07:47:16,260 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-11-20 07:47:16,260 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2021-11-20 07:47:16,260 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2021-11-20 07:47:16,261 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2021-11-20 07:47:16,261 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-20 07:47:16,261 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-11-20 07:47:16,261 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2021-11-20 07:47:16,262 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-11-20 07:47:16,262 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2021-11-20 07:47:16,262 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-11-20 07:47:16,262 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2021-11-20 07:47:16,262 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA
[2021-11-20 07:47:16,263 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-11-20 07:47:16,263 INFO  L138        SettingsManager]:  * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE
[2021-11-20 07:47:16,263 INFO  L138        SettingsManager]:  * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER
[2021-11-20 07:47:16,263 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_18a4c763-5850-4470-8afa-9cda194ce9f6/bin/ugemcutter-b9s2R6iq4d/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_18a4c763-5850-4470-8afa-9cda194ce9f6/bin/ugemcutter-b9s2R6iq4d
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 -> 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 -> 4017723c7e4b1f7c431c7e7a6ea6ca9df8ac56fc590cd03021a11577cb455eff
[2021-11-20 07:47:16,533 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2021-11-20 07:47:16,554 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-11-20 07:47:16,557 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-11-20 07:47:16,558 INFO  L271        PluginConnector]: Initializing CDTParser...
[2021-11-20 07:47:16,559 INFO  L275        PluginConnector]: CDTParser initialized
[2021-11-20 07:47:16,560 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a4c763-5850-4470-8afa-9cda194ce9f6/bin/ugemcutter-b9s2R6iq4d/../../sv-benchmarks/c/goblint-regression/13-privatized_25-struct_nr_true.i
[2021-11-20 07:47:16,638 INFO  L220              CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a4c763-5850-4470-8afa-9cda194ce9f6/bin/ugemcutter-b9s2R6iq4d/data/da85b1ad1/6dd0de9690bb405689aacac3bb6a4573/FLAGf0989b41a
[2021-11-20 07:47:17,148 INFO  L306              CDTParser]: Found 1 translation units.
[2021-11-20 07:47:17,148 INFO  L160              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a4c763-5850-4470-8afa-9cda194ce9f6/sv-benchmarks/c/goblint-regression/13-privatized_25-struct_nr_true.i
[2021-11-20 07:47:17,163 INFO  L349              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a4c763-5850-4470-8afa-9cda194ce9f6/bin/ugemcutter-b9s2R6iq4d/data/da85b1ad1/6dd0de9690bb405689aacac3bb6a4573/FLAGf0989b41a
[2021-11-20 07:47:17,478 INFO  L357              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a4c763-5850-4470-8afa-9cda194ce9f6/bin/ugemcutter-b9s2R6iq4d/data/da85b1ad1/6dd0de9690bb405689aacac3bb6a4573
[2021-11-20 07:47:17,481 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-11-20 07:47:17,482 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2021-11-20 07:47:17,485 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-11-20 07:47:17,485 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-11-20 07:47:17,489 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2021-11-20 07:47:17,490 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:47:17" (1/1) ...
[2021-11-20 07:47:17,492 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e0cd8ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:47:17, skipping insertion in model container
[2021-11-20 07:47:17,492 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:47:17" (1/1) ...
[2021-11-20 07:47:17,499 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2021-11-20 07:47:17,549 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2021-11-20 07:47:17,756 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_18a4c763-5850-4470-8afa-9cda194ce9f6/sv-benchmarks/c/goblint-regression/13-privatized_25-struct_nr_true.i[1086,1099]
[2021-11-20 07:47:17,985 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2021-11-20 07:47:17,999 INFO  L203         MainTranslator]: Completed pre-run
[2021-11-20 07:47:18,014 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_18a4c763-5850-4470-8afa-9cda194ce9f6/sv-benchmarks/c/goblint-regression/13-privatized_25-struct_nr_true.i[1086,1099]
[2021-11-20 07:47:18,067 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2021-11-20 07:47:18,103 INFO  L208         MainTranslator]: Completed translation
[2021-11-20 07:47:18,104 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:47:18 WrapperNode
[2021-11-20 07:47:18,104 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-11-20 07:47:18,105 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-11-20 07:47:18,105 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-11-20 07:47:18,105 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2021-11-20 07:47:18,114 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:47:18" (1/1) ...
[2021-11-20 07:47:18,141 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:47:18" (1/1) ...
[2021-11-20 07:47:18,177 INFO  L137                Inliner]: procedures = 162, calls = 24, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 76
[2021-11-20 07:47:18,177 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-11-20 07:47:18,178 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-11-20 07:47:18,178 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2021-11-20 07:47:18,179 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2021-11-20 07:47:18,187 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:47:18" (1/1) ...
[2021-11-20 07:47:18,187 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:47:18" (1/1) ...
[2021-11-20 07:47:18,201 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:47:18" (1/1) ...
[2021-11-20 07:47:18,202 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:47:18" (1/1) ...
[2021-11-20 07:47:18,208 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:47:18" (1/1) ...
[2021-11-20 07:47:18,220 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:47:18" (1/1) ...
[2021-11-20 07:47:18,223 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:47:18" (1/1) ...
[2021-11-20 07:47:18,230 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-11-20 07:47:18,231 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-11-20 07:47:18,241 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2021-11-20 07:47:18,241 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2021-11-20 07:47:18,242 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:47:18" (1/1) ...
[2021-11-20 07:47:18,256 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-20 07:47:18,270 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a4c763-5850-4470-8afa-9cda194ce9f6/bin/ugemcutter-b9s2R6iq4d/z3
[2021-11-20 07:47:18,286 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a4c763-5850-4470-8afa-9cda194ce9f6/bin/ugemcutter-b9s2R6iq4d/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-11-20 07:47:18,319 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a4c763-5850-4470-8afa-9cda194ce9f6/bin/ugemcutter-b9s2R6iq4d/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-11-20 07:47:18,345 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2021-11-20 07:47:18,345 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2021-11-20 07:47:18,346 INFO  L130     BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2021-11-20 07:47:18,346 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2021-11-20 07:47:18,346 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-11-20 07:47:18,346 INFO  L130     BoogieDeclarations]: Found specification of procedure t_fun
[2021-11-20 07:47:18,346 INFO  L138     BoogieDeclarations]: Found implementation of procedure t_fun
[2021-11-20 07:47:18,346 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2021-11-20 07:47:18,347 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2021-11-20 07:47:18,347 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-11-20 07:47:18,347 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-11-20 07:47:18,349 WARN  L209             CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2021-11-20 07:47:18,501 INFO  L236             CfgBuilder]: Building ICFG
[2021-11-20 07:47:18,503 INFO  L262             CfgBuilder]: Building CFG for each procedure with an implementation
[2021-11-20 07:47:18,749 INFO  L277             CfgBuilder]: Performing block encoding
[2021-11-20 07:47:18,756 INFO  L296             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-11-20 07:47:18,758 INFO  L301             CfgBuilder]: Removed 0 assume(true) statements.
[2021-11-20 07:47:18,761 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:47:18 BoogieIcfgContainer
[2021-11-20 07:47:18,761 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-11-20 07:47:18,763 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-11-20 07:47:18,765 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2021-11-20 07:47:18,768 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2021-11-20 07:47:18,768 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:47:17" (1/3) ...
[2021-11-20 07:47:18,769 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4235176f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:47:18, skipping insertion in model container
[2021-11-20 07:47:18,770 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:47:18" (2/3) ...
[2021-11-20 07:47:18,771 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4235176f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:47:18, skipping insertion in model container
[2021-11-20 07:47:18,771 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:47:18" (3/3) ...
[2021-11-20 07:47:18,772 INFO  L111   eAbstractionObserver]: Analyzing ICFG 13-privatized_25-struct_nr_true.i
[2021-11-20 07:47:18,781 WARN  L149   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2021-11-20 07:47:18,781 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-11-20 07:47:18,781 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations.
[2021-11-20 07:47:18,782 INFO  L513   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2021-11-20 07:47:18,819 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:47:18,819 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:47:18,819 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:47:18,819 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:47:18,820 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:47:18,820 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:47:18,821 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:47:18,821 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:47:18,821 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:47:18,821 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:47:18,822 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:47:18,823 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:47:18,824 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:47:18,824 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:47:18,824 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:47:18,824 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:47:18,824 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:47:18,825 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:47:18,825 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:47:18,826 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:47:18,826 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:47:18,827 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:47:18,827 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:47:18,828 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:47:18,828 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:47:18,828 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:47:18,829 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:47:18,830 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:47:18,830 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:47:18,830 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:47:18,831 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:47:18,831 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:47:18,831 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:47:18,832 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:47:18,832 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:47:18,832 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:47:18,832 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:47:18,832 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:47:18,833 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:47:18,833 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:47:18,833 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:47:18,834 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:47:18,834 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:47:18,834 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:47:18,834 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:47:18,835 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:47:18,835 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:47:18,835 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:47:18,848 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:47:18,849 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:47:18,849 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet1#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:47:18,849 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:47:18,849 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~t~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:47:18,849 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:47:18,850 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:47:18,850 WARN  L322   ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes.
[2021-11-20 07:47:18,854 INFO  L148    ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions.
[2021-11-20 07:47:18,924 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2021-11-20 07:47:18,924 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a4c763-5850-4470-8afa-9cda194ce9f6/bin/ugemcutter-b9s2R6iq4d/z3
[2021-11-20 07:47:18,926 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a4c763-5850-4470-8afa-9cda194ce9f6/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2021-11-20 07:47:18,927 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a4c763-5850-4470-8afa-9cda194ce9f6/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process
[2021-11-20 07:47:18,969 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t_funThread1of1ForFork0 ========
[2021-11-20 07:47:18,975 INFO  L339      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=PARTIAL_ORDER_FA, 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, mLoopAccelerationTechnique=FAST_UPR
[2021-11-20 07:47:18,975 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2021-11-20 07:47:19,104 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-20 07:47:19,109 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-11-20 07:47:19,110 INFO  L85        PathProgramCache]: Analyzing trace with hash 358167179, now seen corresponding path program 1 times
[2021-11-20 07:47:19,119 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-20 07:47:19,119 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316846533]
[2021-11-20 07:47:19,120 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-20 07:47:19,120 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-20 07:47:19,220 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 07:47:19,299 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-20 07:47:19,299 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-20 07:47:19,300 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316846533]
[2021-11-20 07:47:19,300 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316846533] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-20 07:47:19,301 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-20 07:47:19,301 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-11-20 07:47:19,303 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632207707]
[2021-11-20 07:47:19,303 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-20 07:47:19,308 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2021-11-20 07:47:19,309 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-20 07:47:19,330 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2021-11-20 07:47:19,331 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-11-20 07:47:19,332 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-11-20 07:47:19,334 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-11-20 07:47:19,336 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 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)
[2021-11-20 07:47:19,336 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-11-20 07:47:19,351 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-11-20 07:47:19,351 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-11-20 07:47:19,352 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-20 07:47:19,352 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-11-20 07:47:19,354 INFO  L85        PathProgramCache]: Analyzing trace with hash 1028974734, now seen corresponding path program 1 times
[2021-11-20 07:47:19,356 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-20 07:47:19,357 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132280617]
[2021-11-20 07:47:19,357 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-20 07:47:19,357 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-20 07:47:19,413 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 07:47:19,648 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-20 07:47:19,648 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-20 07:47:19,648 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132280617]
[2021-11-20 07:47:19,648 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132280617] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-20 07:47:19,649 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-20 07:47:19,649 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2021-11-20 07:47:19,649 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821994425]
[2021-11-20 07:47:19,649 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-20 07:47:19,651 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-11-20 07:47:19,651 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-20 07:47:19,651 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-11-20 07:47:19,652 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2021-11-20 07:47:19,652 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-11-20 07:47:19,652 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-11-20 07:47:19,652 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 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)
[2021-11-20 07:47:19,652 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-11-20 07:47:19,652 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-11-20 07:47:19,828 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-11-20 07:47:19,828 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2021-11-20 07:47:19,829 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-11-20 07:47:19,829 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-20 07:47:19,829 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-11-20 07:47:19,830 INFO  L85        PathProgramCache]: Analyzing trace with hash 1778536600, now seen corresponding path program 1 times
[2021-11-20 07:47:19,830 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-20 07:47:19,830 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394508931]
[2021-11-20 07:47:19,830 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-20 07:47:19,831 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-20 07:47:19,861 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 07:47:19,951 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-20 07:47:19,951 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-20 07:47:19,951 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394508931]
[2021-11-20 07:47:19,952 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394508931] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-20 07:47:19,952 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-20 07:47:19,952 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-11-20 07:47:19,952 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037030850]
[2021-11-20 07:47:19,953 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-20 07:47:19,953 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-11-20 07:47:19,954 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-20 07:47:19,954 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-11-20 07:47:19,954 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-11-20 07:47:19,955 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-11-20 07:47:19,955 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-11-20 07:47:19,955 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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)
[2021-11-20 07:47:19,955 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-11-20 07:47:19,956 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. 
[2021-11-20 07:47:19,956 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-11-20 07:47:20,081 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-11-20 07:47:20,081 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2021-11-20 07:47:20,082 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2021-11-20 07:47:20,082 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2021-11-20 07:47:20,082 INFO  L402      AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-20 07:47:20,083 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-11-20 07:47:20,083 INFO  L85        PathProgramCache]: Analyzing trace with hash 607778798, now seen corresponding path program 1 times
[2021-11-20 07:47:20,083 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-20 07:47:20,083 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200098346]
[2021-11-20 07:47:20,084 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-20 07:47:20,084 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-20 07:47:20,110 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 07:47:20,172 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-20 07:47:20,173 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-20 07:47:20,173 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200098346]
[2021-11-20 07:47:20,174 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200098346] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-20 07:47:20,174 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-20 07:47:20,174 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-11-20 07:47:20,174 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606618710]
[2021-11-20 07:47:20,175 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-20 07:47:20,175 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-11-20 07:47:20,175 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-20 07:47:20,176 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-11-20 07:47:20,176 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-11-20 07:47:20,176 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-11-20 07:47:20,177 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-11-20 07:47:20,177 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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)
[2021-11-20 07:47:20,177 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-11-20 07:47:20,177 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. 
[2021-11-20 07:47:20,178 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. 
[2021-11-20 07:47:20,178 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-11-20 07:47:20,357 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-11-20 07:47:20,357 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2021-11-20 07:47:20,358 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2021-11-20 07:47:20,358 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-11-20 07:47:20,358 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2021-11-20 07:47:20,359 INFO  L402      AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-20 07:47:20,359 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-11-20 07:47:20,359 INFO  L85        PathProgramCache]: Analyzing trace with hash 1002664096, now seen corresponding path program 1 times
[2021-11-20 07:47:20,360 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-20 07:47:20,360 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122694261]
[2021-11-20 07:47:20,360 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-20 07:47:20,361 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-20 07:47:20,382 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 07:47:20,561 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-20 07:47:20,564 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-20 07:47:20,564 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122694261]
[2021-11-20 07:47:20,565 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122694261] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-20 07:47:20,565 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-20 07:47:20,566 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2021-11-20 07:47:20,566 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275546408]
[2021-11-20 07:47:20,567 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-20 07:47:20,567 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2021-11-20 07:47:20,568 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-20 07:47:20,568 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2021-11-20 07:47:20,569 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72
[2021-11-20 07:47:20,570 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-11-20 07:47:20,570 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-11-20 07:47:20,570 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 9 states have internal predecessors, (59), 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)
[2021-11-20 07:47:20,570 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-11-20 07:47:20,571 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. 
[2021-11-20 07:47:20,571 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. 
[2021-11-20 07:47:20,571 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-11-20 07:47:20,571 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-11-20 07:47:20,819 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-11-20 07:47:20,820 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. 
[2021-11-20 07:47:20,824 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2021-11-20 07:47:20,825 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-11-20 07:47:20,825 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. 
[2021-11-20 07:47:20,828 INFO  L764   garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining)
[2021-11-20 07:47:20,829 INFO  L764   garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining)
[2021-11-20 07:47:20,829 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2021-11-20 07:47:20,844 INFO  L732         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1]
[2021-11-20 07:47:20,848 INFO  L308   ceAbstractionStarter]: Result for error location t_funThread1of1ForFork0 was SAFE,SAFE (1/2)
[2021-11-20 07:47:20,856 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2021-11-20 07:47:20,864 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a4c763-5850-4470-8afa-9cda194ce9f6/bin/ugemcutter-b9s2R6iq4d/z3
[2021-11-20 07:47:20,869 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a4c763-5850-4470-8afa-9cda194ce9f6/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2021-11-20 07:47:20,883 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a4c763-5850-4470-8afa-9cda194ce9f6/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process
[2021-11-20 07:47:20,885 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2021-11-20 07:47:20,888 INFO  L339      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=PARTIAL_ORDER_FA, 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, mLoopAccelerationTechnique=FAST_UPR
[2021-11-20 07:47:20,888 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 3 error locations.
[2021-11-20 07:47:20,900 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] ===
[2021-11-20 07:47:20,905 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-11-20 07:47:20,912 INFO  L85        PathProgramCache]: Analyzing trace with hash -948070911, now seen corresponding path program 1 times
[2021-11-20 07:47:20,912 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-20 07:47:20,913 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667867813]
[2021-11-20 07:47:20,913 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-20 07:47:20,913 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-20 07:47:20,922 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 07:47:21,032 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-20 07:47:21,033 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-20 07:47:21,033 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667867813]
[2021-11-20 07:47:21,033 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667867813] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-20 07:47:21,033 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-20 07:47:21,034 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-11-20 07:47:21,034 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237792991]
[2021-11-20 07:47:21,034 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-20 07:47:21,034 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-11-20 07:47:21,035 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-20 07:47:21,035 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-11-20 07:47:21,035 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-11-20 07:47:21,036 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-11-20 07:47:21,036 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-11-20 07:47:21,036 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 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)
[2021-11-20 07:47:21,036 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-11-20 07:47:21,132 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2021-11-20 07:47:21,133 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2021-11-20 07:47:21,133 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] ===
[2021-11-20 07:47:21,134 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-11-20 07:47:21,134 INFO  L85        PathProgramCache]: Analyzing trace with hash -1104650203, now seen corresponding path program 1 times
[2021-11-20 07:47:21,134 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-20 07:47:21,134 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430645200]
[2021-11-20 07:47:21,134 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-20 07:47:21,135 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-20 07:47:21,147 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 07:47:21,274 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-20 07:47:21,274 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-20 07:47:21,274 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430645200]
[2021-11-20 07:47:21,275 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430645200] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-20 07:47:21,275 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-20 07:47:21,275 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2021-11-20 07:47:21,275 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655249967]
[2021-11-20 07:47:21,276 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-20 07:47:21,276 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2021-11-20 07:47:21,276 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-20 07:47:21,277 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2021-11-20 07:47:21,277 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2021-11-20 07:47:21,277 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-11-20 07:47:21,277 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-11-20 07:47:21,278 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 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)
[2021-11-20 07:47:21,278 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2021-11-20 07:47:21,278 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-11-20 07:47:21,468 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2021-11-20 07:47:21,469 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2021-11-20 07:47:21,470 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2021-11-20 07:47:21,470 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] ===
[2021-11-20 07:47:21,471 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-11-20 07:47:21,471 INFO  L85        PathProgramCache]: Analyzing trace with hash 1223669245, now seen corresponding path program 1 times
[2021-11-20 07:47:21,471 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-20 07:47:21,473 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581350690]
[2021-11-20 07:47:21,473 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-20 07:47:21,474 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-20 07:47:21,499 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 07:47:21,545 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-20 07:47:21,545 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-20 07:47:21,545 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581350690]
[2021-11-20 07:47:21,547 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581350690] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-20 07:47:21,547 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-20 07:47:21,547 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-11-20 07:47:21,547 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254265347]
[2021-11-20 07:47:21,548 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-20 07:47:21,548 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-11-20 07:47:21,548 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-20 07:47:21,550 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-11-20 07:47:21,550 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-11-20 07:47:21,551 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-11-20 07:47:21,551 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-11-20 07:47:21,551 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 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)
[2021-11-20 07:47:21,551 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2021-11-20 07:47:21,551 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. 
[2021-11-20 07:47:21,552 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-11-20 07:47:21,654 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2021-11-20 07:47:21,655 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2021-11-20 07:47:21,655 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-11-20 07:47:21,656 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2021-11-20 07:47:21,656 INFO  L402      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] ===
[2021-11-20 07:47:21,656 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-11-20 07:47:21,657 INFO  L85        PathProgramCache]: Analyzing trace with hash -1739080425, now seen corresponding path program 1 times
[2021-11-20 07:47:21,657 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-20 07:47:21,657 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607698675]
[2021-11-20 07:47:21,657 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-20 07:47:21,658 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-20 07:47:21,683 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-20 07:47:21,852 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-20 07:47:21,852 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-20 07:47:21,852 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607698675]
[2021-11-20 07:47:21,853 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607698675] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-20 07:47:21,853 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-20 07:47:21,853 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-11-20 07:47:21,853 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074393561]
[2021-11-20 07:47:21,853 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-20 07:47:21,855 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2021-11-20 07:47:21,855 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-20 07:47:21,856 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-11-20 07:47:21,856 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2021-11-20 07:47:21,856 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2021-11-20 07:47:21,856 INFO  L470      AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2021-11-20 07:47:21,857 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 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)
[2021-11-20 07:47:21,857 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. 
[2021-11-20 07:47:21,857 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. 
[2021-11-20 07:47:21,857 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. 
[2021-11-20 07:47:21,857 INFO  L154   InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. 
[2021-11-20 07:47:22,019 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2021-11-20 07:47:22,021 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2021-11-20 07:47:22,022 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-11-20 07:47:22,022 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2021-11-20 07:47:22,022 INFO  L764   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining)
[2021-11-20 07:47:22,023 INFO  L764   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining)
[2021-11-20 07:47:22,023 INFO  L764   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 3 remaining)
[2021-11-20 07:47:22,023 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2021-11-20 07:47:22,031 INFO  L732         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2021-11-20 07:47:22,031 INFO  L308   ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE,SAFE (2/2)
[2021-11-20 07:47:22,033 INFO  L229   ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2021-11-20 07:47:22,033 INFO  L179   ceAbstractionStarter]: Computing trace abstraction results
[2021-11-20 07:47:22,037 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 07:47:22 BasicIcfg
[2021-11-20 07:47:22,037 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-11-20 07:47:22,038 INFO  L113        PluginConnector]: ------------------------Witness Printer----------------------------
[2021-11-20 07:47:22,038 INFO  L271        PluginConnector]: Initializing Witness Printer...
[2021-11-20 07:47:22,038 INFO  L275        PluginConnector]: Witness Printer initialized
[2021-11-20 07:47:22,039 INFO  L185        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:47:18" (3/4) ...
[2021-11-20 07:47:22,042 INFO  L137         WitnessPrinter]: Generating witness for correct program
[2021-11-20 07:47:22,049 INFO  L354     RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun
[2021-11-20 07:47:22,054 INFO  L910   BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges
[2021-11-20 07:47:22,055 INFO  L910   BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2021-11-20 07:47:22,055 INFO  L910   BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges
[2021-11-20 07:47:22,055 INFO  L910   BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2021-11-20 07:47:22,093 INFO  L141         WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a4c763-5850-4470-8afa-9cda194ce9f6/bin/ugemcutter-b9s2R6iq4d/witness.graphml
[2021-11-20 07:47:22,094 INFO  L132        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-11-20 07:47:22,094 INFO  L158              Benchmark]: Toolchain (without parser) took 4612.43ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 70.9MB in the beginning and 67.7MB in the end (delta: 3.3MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB.
[2021-11-20 07:47:22,095 INFO  L158              Benchmark]: CDTParser took 0.32ms. Allocated memory is still 109.1MB. Free memory is still 88.9MB. There was no memory consumed. Max. memory is 16.1GB.
[2021-11-20 07:47:22,095 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 619.19ms. Allocated memory is still 109.1MB. Free memory was 70.8MB in the beginning and 75.0MB in the end (delta: -4.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2021-11-20 07:47:22,095 INFO  L158              Benchmark]: Boogie Procedure Inliner took 72.43ms. Allocated memory is still 109.1MB. Free memory was 75.0MB in the beginning and 72.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2021-11-20 07:47:22,096 INFO  L158              Benchmark]: Boogie Preprocessor took 52.34ms. Allocated memory is still 109.1MB. Free memory was 72.9MB in the beginning and 71.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2021-11-20 07:47:22,096 INFO  L158              Benchmark]: RCFGBuilder took 530.34ms. Allocated memory is still 109.1MB. Free memory was 71.2MB in the beginning and 59.8MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2021-11-20 07:47:22,097 INFO  L158              Benchmark]: TraceAbstraction took 3274.00ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 59.4MB in the beginning and 70.8MB in the end (delta: -11.4MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB.
[2021-11-20 07:47:22,097 INFO  L158              Benchmark]: Witness Printer took 56.03ms. Allocated memory is still 132.1MB. Free memory was 69.8MB in the beginning and 67.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2021-11-20 07:47:22,100 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.32ms. Allocated memory is still 109.1MB. Free memory is still 88.9MB. There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 619.19ms. Allocated memory is still 109.1MB. Free memory was 70.8MB in the beginning and 75.0MB in the end (delta: -4.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
 * Boogie Procedure Inliner took 72.43ms. Allocated memory is still 109.1MB. Free memory was 75.0MB in the beginning and 72.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * Boogie Preprocessor took 52.34ms. Allocated memory is still 109.1MB. Free memory was 72.9MB in the beginning and 71.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * RCFGBuilder took 530.34ms. Allocated memory is still 109.1MB. Free memory was 71.2MB in the beginning and 59.8MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
 * TraceAbstraction took 3274.00ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 59.4MB in the beginning and 70.8MB in the end (delta: -11.4MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB.
 * Witness Printer took 56.03ms. Allocated memory is still 132.1MB. Free memory was 69.8MB in the beginning and 67.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: Independence relation benchmarks
    ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1161, positive: 1122, positive conditional: 204, positive unconditional: 918, negative: 39, negative conditional: 25, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1142, positive: 1122, positive conditional: 204, positive unconditional: 918, negative: 20, negative conditional: 6, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1142, positive: 1122, positive conditional: 204, positive unconditional: 918, negative: 20, negative conditional: 6, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1152, positive: 1122, positive conditional: 177, positive unconditional: 945, negative: 30, negative conditional: 10, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1152, positive: 1122, positive conditional: 74, positive unconditional: 1048, negative: 30, negative conditional: 6, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1152, positive: 1122, positive conditional: 74, positive unconditional: 1048, negative: 30, negative conditional: 6, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 934, positive: 918, positive conditional: 0, positive unconditional: 918, negative: 16, negative conditional: 2, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 934, positive: 916, positive conditional: 0, positive unconditional: 916, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 18, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 16, negative conditional: 2, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 155, positive: 41, positive conditional: 0, positive unconditional: 41, negative: 115, negative conditional: 8, negative unconditional: 107, unknown: 0, unknown conditional: 0, unknown unconditional: 0]  ], Cache Queries: [ total: 1152, positive: 204, positive conditional: 74, positive unconditional: 130, negative: 14, negative conditional: 4, negative unconditional: 10, unknown: 934, unknown conditional: 2, unknown unconditional: 932] , Statistics on independence cache: Total cache size (in pairs): 934, Positive cache size: 918, Positive conditional cache size: 0, Positive unconditional cache size: 918, Negative cache size: 16, Negative conditional cache size: 2, Negative unconditional cache size: 14, Eliminated conditions: 107, Maximal queried relation: 2, Independence queries for same thread: 19
  - StatisticsResult: Persistent set benchmarks
    Persistent set computation time: 0.2s, Number of persistent set computation: 100, Number of trivial persistent sets: 65, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 932, positive: 918, positive conditional: 0, positive unconditional: 918, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1161, positive: 1122, positive conditional: 204, positive unconditional: 918, negative: 39, negative conditional: 25, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1142, positive: 1122, positive conditional: 204, positive unconditional: 918, negative: 20, negative conditional: 6, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1142, positive: 1122, positive conditional: 204, positive unconditional: 918, negative: 20, negative conditional: 6, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1152, positive: 1122, positive conditional: 177, positive unconditional: 945, negative: 30, negative conditional: 10, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1152, positive: 1122, positive conditional: 74, positive unconditional: 1048, negative: 30, negative conditional: 6, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1152, positive: 1122, positive conditional: 74, positive unconditional: 1048, negative: 30, negative conditional: 6, negative unconditional: 24, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 934, positive: 918, positive conditional: 0, positive unconditional: 918, negative: 16, negative conditional: 2, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 934, positive: 916, positive conditional: 0, positive unconditional: 916, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 18, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 16, negative conditional: 2, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 155, positive: 41, positive conditional: 0, positive unconditional: 41, negative: 115, negative conditional: 8, negative unconditional: 107, unknown: 0, unknown conditional: 0, unknown unconditional: 0]  ], Cache Queries: [ total: 1152, positive: 204, positive conditional: 74, positive unconditional: 130, negative: 14, negative conditional: 4, negative unconditional: 10, unknown: 934, unknown conditional: 2, unknown unconditional: 932] , Statistics on independence cache: Total cache size (in pairs): 934, Positive cache size: 918, Positive conditional cache size: 0, Positive unconditional cache size: 918, Negative cache size: 16, Negative conditional cache size: 2, Negative unconditional cache size: 14, Eliminated conditions: 107, Maximal queried relation: 2, Independence queries for same thread: 19
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - StatisticsResult: Independence relation benchmarks
    ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1085, positive: 1052, positive conditional: 195, positive unconditional: 857, negative: 33, negative conditional: 20, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1071, positive: 1052, positive conditional: 195, positive unconditional: 857, negative: 19, negative conditional: 6, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1071, positive: 1052, positive conditional: 195, positive unconditional: 857, negative: 19, negative conditional: 6, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1089, positive: 1052, positive conditional: 185, positive unconditional: 867, negative: 37, negative conditional: 18, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1089, positive: 1052, positive conditional: 93, positive unconditional: 959, negative: 37, negative conditional: 6, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1089, positive: 1052, positive conditional: 93, positive unconditional: 959, negative: 37, negative conditional: 6, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 872, positive: 857, positive conditional: 0, positive unconditional: 857, negative: 15, negative conditional: 2, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 872, positive: 855, positive conditional: 0, positive unconditional: 855, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 17, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 15, negative conditional: 2, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 60, positive: 27, positive conditional: 0, positive unconditional: 27, negative: 34, negative conditional: 6, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0]  ], Cache Queries: [ total: 1089, positive: 195, positive conditional: 93, positive unconditional: 102, negative: 22, negative conditional: 4, negative unconditional: 18, unknown: 872, unknown conditional: 2, unknown unconditional: 870] , Statistics on independence cache: Total cache size (in pairs): 872, Positive cache size: 857, Positive conditional cache size: 0, Positive unconditional cache size: 857, Negative cache size: 15, Negative conditional cache size: 2, Negative unconditional cache size: 13, Eliminated conditions: 104, Maximal queried relation: 4, Independence queries for same thread: 14
  - StatisticsResult: Persistent set benchmarks
    Persistent set computation time: 0.1s, Number of persistent set computation: 101, Number of trivial persistent sets: 77, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 870, positive: 857, positive conditional: 0, positive unconditional: 857, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1085, positive: 1052, positive conditional: 195, positive unconditional: 857, negative: 33, negative conditional: 20, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1071, positive: 1052, positive conditional: 195, positive unconditional: 857, negative: 19, negative conditional: 6, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1071, positive: 1052, positive conditional: 195, positive unconditional: 857, negative: 19, negative conditional: 6, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1089, positive: 1052, positive conditional: 185, positive unconditional: 867, negative: 37, negative conditional: 18, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1089, positive: 1052, positive conditional: 93, positive unconditional: 959, negative: 37, negative conditional: 6, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1089, positive: 1052, positive conditional: 93, positive unconditional: 959, negative: 37, negative conditional: 6, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 872, positive: 857, positive conditional: 0, positive unconditional: 857, negative: 15, negative conditional: 2, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 872, positive: 855, positive conditional: 0, positive unconditional: 855, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 17, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 15, negative conditional: 2, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 60, positive: 27, positive conditional: 0, positive unconditional: 27, negative: 34, negative conditional: 6, negative unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0]  ], Cache Queries: [ total: 1089, positive: 195, positive conditional: 93, positive unconditional: 102, negative: 22, negative conditional: 4, negative unconditional: 18, unknown: 872, unknown conditional: 2, unknown unconditional: 870] , Statistics on independence cache: Total cache size (in pairs): 872, Positive cache size: 857, Positive conditional cache size: 0, Positive unconditional cache size: 857, Negative cache size: 15, Negative conditional cache size: 2, Negative unconditional cache size: 13, Eliminated conditions: 104, Maximal queried relation: 4, Independence queries for same thread: 14
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - PositiveResult [Line: 19]: call to reach_error is unreachable
    For all program executions holds that call to reach_error is unreachable at this location
  - PositiveResult [Line: 19]: call to reach_error is unreachable
    For all program executions holds that call to reach_error is unreachable at this location
  - PositiveResult [Line: 19]: call to reach_error is unreachable
    For all program executions holds that call to reach_error is unreachable at this location
  - PositiveResult [Line: 19]: call to reach_error is unreachable
    For all program executions holds that call to reach_error is unreachable at this location
  - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: t_funThread1of1ForFork0 with 1 thread instances
    CFG has 3 procedures, 123 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.9s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 35, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 249 NumberOfCodeBlocks, 249 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 244 ConstructedInterpolants, 0 QuantifiedInterpolants, 807 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
  - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances
    CFG has 3 procedures, 123 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.6s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 191 NumberOfCodeBlocks, 191 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 187 ConstructedInterpolants, 0 QuantifiedInterpolants, 782 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
  - AllSpecificationsHoldResult: All specifications hold
    4 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2021-11-20 07:47:22,163 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a4c763-5850-4470-8afa-9cda194ce9f6/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Forceful destruction successful, exit code 0
[2021-11-20 07:47:22,368 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a4c763-5850-4470-8afa-9cda194ce9f6/bin/ugemcutter-b9s2R6iq4d/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0
[2021-11-20 07:47:22,569 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18a4c763-5850-4470-8afa-9cda194ce9f6/bin/ugemcutter-b9s2R6iq4d/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---

Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE