./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_ground.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 5e519f3a
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5527252e-aef6-4dea-a9de-714720a00165/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5527252e-aef6-4dea-a9de-714720a00165/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5527252e-aef6-4dea-a9de-714720a00165/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5527252e-aef6-4dea-a9de-714720a00165/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_ground.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5527252e-aef6-4dea-a9de-714720a00165/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5527252e-aef6-4dea-a9de-714720a00165/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0286582125bb2879636b8cf3b934bed172850a3a3b0d880c07306d10439134a7
--- Real Ultimate output ---
[0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset.
This is Ultimate 0.2.2-dev-5e519f3
[2022-11-02 21:03:12,410 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-11-02 21:03:12,413 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-11-02 21:03:12,477 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-11-02 21:03:12,478 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-11-02 21:03:12,482 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-11-02 21:03:12,484 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-11-02 21:03:12,489 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-11-02 21:03:12,491 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-11-02 21:03:12,494 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-11-02 21:03:12,495 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-11-02 21:03:12,496 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-11-02 21:03:12,497 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-11-02 21:03:12,498 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-11-02 21:03:12,499 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-11-02 21:03:12,500 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-11-02 21:03:12,500 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-11-02 21:03:12,501 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-11-02 21:03:12,507 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-11-02 21:03:12,515 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-11-02 21:03:12,517 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-11-02 21:03:12,519 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-11-02 21:03:12,523 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-11-02 21:03:12,524 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-11-02 21:03:12,533 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-11-02 21:03:12,533 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-11-02 21:03:12,534 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-11-02 21:03:12,535 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-11-02 21:03:12,536 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-11-02 21:03:12,537 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-11-02 21:03:12,537 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-11-02 21:03:12,538 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-11-02 21:03:12,541 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-11-02 21:03:12,542 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-11-02 21:03:12,543 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-11-02 21:03:12,543 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-11-02 21:03:12,544 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-11-02 21:03:12,544 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-11-02 21:03:12,545 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-11-02 21:03:12,546 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-11-02 21:03:12,546 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-11-02 21:03:12,547 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5527252e-aef6-4dea-a9de-714720a00165/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-32bit-Automizer_Default.epf
[2022-11-02 21:03:12,582 INFO L113 SettingsManager]: Loading preferences was successful
[2022-11-02 21:03:12,582 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-11-02 21:03:12,583 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-11-02 21:03:12,583 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-11-02 21:03:12,584 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-11-02 21:03:12,584 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-11-02 21:03:12,585 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-11-02 21:03:12,585 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-11-02 21:03:12,585 INFO L138 SettingsManager]: * Use SBE=true
[2022-11-02 21:03:12,586 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-11-02 21:03:12,586 INFO L138 SettingsManager]: * sizeof long=4
[2022-11-02 21:03:12,586 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-11-02 21:03:12,587 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-11-02 21:03:12,587 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-11-02 21:03:12,587 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-11-02 21:03:12,587 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-11-02 21:03:12,588 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-11-02 21:03:12,588 INFO L138 SettingsManager]: * sizeof long double=12
[2022-11-02 21:03:12,588 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-11-02 21:03:12,589 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-11-02 21:03:12,589 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-11-02 21:03:12,589 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-11-02 21:03:12,589 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-11-02 21:03:12,590 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-11-02 21:03:12,590 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 21:03:12,590 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-11-02 21:03:12,591 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-11-02 21:03:12,591 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-11-02 21:03:12,591 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2022-11-02 21:03:12,591 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-11-02 21:03:12,592 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2022-11-02 21:03:12,592 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2022-11-02 21:03:12,592 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-11-02 21:03:12,592 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_5527252e-aef6-4dea-a9de-714720a00165/bin/uautomizer-Dbtcem3rbc/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5527252e-aef6-4dea-a9de-714720a00165/bin/uautomizer-Dbtcem3rbc
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0286582125bb2879636b8cf3b934bed172850a3a3b0d880c07306d10439134a7
[2022-11-02 21:03:12,913 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-11-02 21:03:12,948 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-11-02 21:03:12,950 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-11-02 21:03:12,952 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-11-02 21:03:12,953 INFO L275 PluginConnector]: CDTParser initialized
[2022-11-02 21:03:12,954 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5527252e-aef6-4dea-a9de-714720a00165/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_ground.i
[2022-11-02 21:03:13,035 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5527252e-aef6-4dea-a9de-714720a00165/bin/uautomizer-Dbtcem3rbc/data/012995943/de600822e28a4c3b9cc41475c267e31a/FLAGc8407ab32
[2022-11-02 21:03:13,452 INFO L306 CDTParser]: Found 1 translation units.
[2022-11-02 21:03:13,453 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5527252e-aef6-4dea-a9de-714720a00165/sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_ground.i
[2022-11-02 21:03:13,460 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5527252e-aef6-4dea-a9de-714720a00165/bin/uautomizer-Dbtcem3rbc/data/012995943/de600822e28a4c3b9cc41475c267e31a/FLAGc8407ab32
[2022-11-02 21:03:13,854 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5527252e-aef6-4dea-a9de-714720a00165/bin/uautomizer-Dbtcem3rbc/data/012995943/de600822e28a4c3b9cc41475c267e31a
[2022-11-02 21:03:13,856 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-11-02 21:03:13,858 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2022-11-02 21:03:13,863 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-11-02 21:03:13,863 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-11-02 21:03:13,867 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-11-02 21:03:13,867 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:03:13" (1/1) ...
[2022-11-02 21:03:13,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e24444d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:03:13, skipping insertion in model container
[2022-11-02 21:03:13,869 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:03:13" (1/1) ...
[2022-11-02 21:03:13,876 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-11-02 21:03:13,895 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-11-02 21:03:14,124 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_5527252e-aef6-4dea-a9de-714720a00165/sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_ground.i[838,851]
[2022-11-02 21:03:14,208 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-02 21:03:14,218 INFO L203 MainTranslator]: Completed pre-run
[2022-11-02 21:03:14,232 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_5527252e-aef6-4dea-a9de-714720a00165/sv-benchmarks/c/array-examples/data_structures_set_multi_proc_trivial_ground.i[838,851]
[2022-11-02 21:03:14,246 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-02 21:03:14,260 INFO L208 MainTranslator]: Completed translation
[2022-11-02 21:03:14,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:03:14 WrapperNode
[2022-11-02 21:03:14,261 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-11-02 21:03:14,262 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-11-02 21:03:14,263 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-11-02 21:03:14,263 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2022-11-02 21:03:14,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:03:14" (1/1) ...
[2022-11-02 21:03:14,298 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:03:14" (1/1) ...
[2022-11-02 21:03:14,337 INFO L138 Inliner]: procedures = 18, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 158
[2022-11-02 21:03:14,341 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-11-02 21:03:14,342 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-11-02 21:03:14,342 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-11-02 21:03:14,343 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-11-02 21:03:14,353 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:03:14" (1/1) ...
[2022-11-02 21:03:14,354 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:03:14" (1/1) ...
[2022-11-02 21:03:14,374 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:03:14" (1/1) ...
[2022-11-02 21:03:14,375 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:03:14" (1/1) ...
[2022-11-02 21:03:14,381 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:03:14" (1/1) ...
[2022-11-02 21:03:14,397 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:03:14" (1/1) ...
[2022-11-02 21:03:14,398 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:03:14" (1/1) ...
[2022-11-02 21:03:14,412 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:03:14" (1/1) ...
[2022-11-02 21:03:14,415 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-11-02 21:03:14,416 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-11-02 21:03:14,416 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-11-02 21:03:14,416 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-11-02 21:03:14,417 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:03:14" (1/1) ...
[2022-11-02 21:03:14,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 21:03:14,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5527252e-aef6-4dea-a9de-714720a00165/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 21:03:14,454 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5527252e-aef6-4dea-a9de-714720a00165/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-11-02 21:03:14,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5527252e-aef6-4dea-a9de-714720a00165/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-11-02 21:03:14,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-11-02 21:03:14,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2022-11-02 21:03:14,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-11-02 21:03:14,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2022-11-02 21:03:14,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-11-02 21:03:14,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-11-02 21:03:14,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2022-11-02 21:03:14,509 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2022-11-02 21:03:14,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2022-11-02 21:03:14,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-11-02 21:03:14,597 INFO L235 CfgBuilder]: Building ICFG
[2022-11-02 21:03:14,599 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-11-02 21:03:14,881 INFO L276 CfgBuilder]: Performing block encoding
[2022-11-02 21:03:14,901 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-11-02 21:03:14,901 INFO L300 CfgBuilder]: Removed 10 assume(true) statements.
[2022-11-02 21:03:14,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:03:14 BoogieIcfgContainer
[2022-11-02 21:03:14,904 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-11-02 21:03:14,906 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-11-02 21:03:14,906 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-11-02 21:03:14,910 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-11-02 21:03:14,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:03:13" (1/3) ...
[2022-11-02 21:03:14,924 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59bcfefc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:03:14, skipping insertion in model container
[2022-11-02 21:03:14,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:03:14" (2/3) ...
[2022-11-02 21:03:14,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59bcfefc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:03:14, skipping insertion in model container
[2022-11-02 21:03:14,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:03:14" (3/3) ...
[2022-11-02 21:03:14,926 INFO L112 eAbstractionObserver]: Analyzing ICFG data_structures_set_multi_proc_trivial_ground.i
[2022-11-02 21:03:14,947 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-11-02 21:03:14,963 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-11-02 21:03:15,037 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-11-02 21:03:15,046 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4d4e4369, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-11-02 21:03:15,046 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-11-02 21:03:15,052 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 42 states have (on average 1.5714285714285714) internal successors, (66), 43 states have internal predecessors, (66), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2022-11-02 21:03:15,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2022-11-02 21:03:15,062 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 21:03:15,062 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 21:03:15,063 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 21:03:15,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 21:03:15,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1977750346, now seen corresponding path program 1 times
[2022-11-02 21:03:15,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 21:03:15,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510952241]
[2022-11-02 21:03:15,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 21:03:15,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 21:03:15,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 21:03:15,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 21:03:15,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 21:03:15,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510952241]
[2022-11-02 21:03:15,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510952241] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 21:03:15,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 21:03:15,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-11-02 21:03:15,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748680368]
[2022-11-02 21:03:15,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 21:03:15,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-02 21:03:15,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 21:03:15,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-02 21:03:15,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-02 21:03:15,493 INFO L87 Difference]: Start difference. First operand has 48 states, 42 states have (on average 1.5714285714285714) internal successors, (66), 43 states have internal predecessors, (66), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 21:03:15,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 21:03:15,626 INFO L93 Difference]: Finished difference Result 131 states and 207 transitions.
[2022-11-02 21:03:15,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-11-02 21:03:15,629 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10
[2022-11-02 21:03:15,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 21:03:15,641 INFO L225 Difference]: With dead ends: 131
[2022-11-02 21:03:15,641 INFO L226 Difference]: Without dead ends: 79
[2022-11-02 21:03:15,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-02 21:03:15,665 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 40 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-11-02 21:03:15,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 92 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-11-02 21:03:15,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states.
[2022-11-02 21:03:15,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 45.
[2022-11-02 21:03:15,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 40 states have (on average 1.3) internal successors, (52), 40 states have internal predecessors, (52), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2022-11-02 21:03:15,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 58 transitions.
[2022-11-02 21:03:15,739 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 58 transitions. Word has length 10
[2022-11-02 21:03:15,739 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 21:03:15,740 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 58 transitions.
[2022-11-02 21:03:15,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 21:03:15,741 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 58 transitions.
[2022-11-02 21:03:15,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2022-11-02 21:03:15,742 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 21:03:15,742 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 21:03:15,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-11-02 21:03:15,744 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 21:03:15,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 21:03:15,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1322552780, now seen corresponding path program 1 times
[2022-11-02 21:03:15,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 21:03:15,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381610754]
[2022-11-02 21:03:15,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 21:03:15,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 21:03:15,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 21:03:15,921 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 21:03:15,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 21:03:15,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381610754]
[2022-11-02 21:03:15,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381610754] provided 0 perfect and 1 imperfect interpolant sequences
[2022-11-02 21:03:15,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1964346362]
[2022-11-02 21:03:15,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 21:03:15,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 21:03:15,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5527252e-aef6-4dea-a9de-714720a00165/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 21:03:15,935 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5527252e-aef6-4dea-a9de-714720a00165/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-11-02 21:03:15,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5527252e-aef6-4dea-a9de-714720a00165/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2022-11-02 21:03:16,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 21:03:16,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core
[2022-11-02 21:03:16,018 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 21:03:16,068 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 21:03:16,069 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-11-02 21:03:16,098 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 21:03:16,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1964346362] provided 0 perfect and 2 imperfect interpolant sequences
[2022-11-02 21:03:16,099 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-11-02 21:03:16,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7
[2022-11-02 21:03:16,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600857561]
[2022-11-02 21:03:16,101 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-11-02 21:03:16,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-11-02 21:03:16,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 21:03:16,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-11-02 21:03:16,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2022-11-02 21:03:16,103 INFO L87 Difference]: Start difference. First operand 45 states and 58 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 21:03:16,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 21:03:16,384 INFO L93 Difference]: Finished difference Result 223 states and 303 transitions.
[2022-11-02 21:03:16,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2022-11-02 21:03:16,391 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12
[2022-11-02 21:03:16,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 21:03:16,394 INFO L225 Difference]: With dead ends: 223
[2022-11-02 21:03:16,394 INFO L226 Difference]: Without dead ends: 183
[2022-11-02 21:03:16,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42
[2022-11-02 21:03:16,405 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 144 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2022-11-02 21:03:16,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 263 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2022-11-02 21:03:16,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states.
[2022-11-02 21:03:16,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 51.
[2022-11-02 21:03:16,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 46 states have (on average 1.2608695652173914) internal successors, (58), 46 states have internal predecessors, (58), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2022-11-02 21:03:16,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 64 transitions.
[2022-11-02 21:03:16,447 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 64 transitions. Word has length 12
[2022-11-02 21:03:16,447 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 21:03:16,447 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 64 transitions.
[2022-11-02 21:03:16,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 21:03:16,447 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 64 transitions.
[2022-11-02 21:03:16,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2022-11-02 21:03:16,448 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 21:03:16,450 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 21:03:16,485 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5527252e-aef6-4dea-a9de-714720a00165/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2022-11-02 21:03:16,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5527252e-aef6-4dea-a9de-714720a00165/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 21:03:16,663 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 21:03:16,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 21:03:16,664 INFO L85 PathProgramCache]: Analyzing trace with hash -201790894, now seen corresponding path program 2 times
[2022-11-02 21:03:16,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 21:03:16,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937252]
[2022-11-02 21:03:16,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 21:03:16,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 21:03:16,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 21:03:16,831 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked.
[2022-11-02 21:03:16,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 21:03:16,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937252]
[2022-11-02 21:03:16,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937252] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 21:03:16,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 21:03:16,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-11-02 21:03:16,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981985982]
[2022-11-02 21:03:16,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 21:03:16,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-11-02 21:03:16,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 21:03:16,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-11-02 21:03:16,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2022-11-02 21:03:16,835 INFO L87 Difference]: Start difference. First operand 51 states and 64 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 21:03:16,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 21:03:16,899 INFO L93 Difference]: Finished difference Result 98 states and 126 transitions.
[2022-11-02 21:03:16,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2022-11-02 21:03:16,900 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18
[2022-11-02 21:03:16,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 21:03:16,901 INFO L225 Difference]: With dead ends: 98
[2022-11-02 21:03:16,901 INFO L226 Difference]: Without dead ends: 57
[2022-11-02 21:03:16,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2022-11-02 21:03:16,903 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 21 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-11-02 21:03:16,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 95 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-11-02 21:03:16,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states.
[2022-11-02 21:03:16,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 56.
[2022-11-02 21:03:16,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 52 states have (on average 1.25) internal successors, (65), 52 states have internal predecessors, (65), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-11-02 21:03:16,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 69 transitions.
[2022-11-02 21:03:16,914 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 69 transitions. Word has length 18
[2022-11-02 21:03:16,914 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 21:03:16,914 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 69 transitions.
[2022-11-02 21:03:16,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 21:03:16,915 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 69 transitions.
[2022-11-02 21:03:16,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30
[2022-11-02 21:03:16,916 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 21:03:16,916 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 21:03:16,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-11-02 21:03:16,916 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 21:03:16,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 21:03:16,917 INFO L85 PathProgramCache]: Analyzing trace with hash 8512802, now seen corresponding path program 1 times
[2022-11-02 21:03:16,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 21:03:16,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015481780]
[2022-11-02 21:03:16,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 21:03:16,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 21:03:16,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 21:03:17,033 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked.
[2022-11-02 21:03:17,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 21:03:17,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015481780]
[2022-11-02 21:03:17,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015481780] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 21:03:17,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 21:03:17,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-11-02 21:03:17,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601058287]
[2022-11-02 21:03:17,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 21:03:17,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-02 21:03:17,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 21:03:17,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-02 21:03:17,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-02 21:03:17,038 INFO L87 Difference]: Start difference. First operand 56 states and 69 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 21:03:17,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 21:03:17,080 INFO L93 Difference]: Finished difference Result 117 states and 148 transitions.
[2022-11-02 21:03:17,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-11-02 21:03:17,081 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29
[2022-11-02 21:03:17,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 21:03:17,083 INFO L225 Difference]: With dead ends: 117
[2022-11-02 21:03:17,083 INFO L226 Difference]: Without dead ends: 77
[2022-11-02 21:03:17,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-02 21:03:17,085 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 20 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-11-02 21:03:17,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 84 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-11-02 21:03:17,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states.
[2022-11-02 21:03:17,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 57.
[2022-11-02 21:03:17,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 53 states have (on average 1.2452830188679245) internal successors, (66), 53 states have internal predecessors, (66), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2022-11-02 21:03:17,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 70 transitions.
[2022-11-02 21:03:17,096 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 70 transitions. Word has length 29
[2022-11-02 21:03:17,096 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 21:03:17,097 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 70 transitions.
[2022-11-02 21:03:17,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 21:03:17,097 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 70 transitions.
[2022-11-02 21:03:17,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2022-11-02 21:03:17,099 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 21:03:17,099 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 21:03:17,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2022-11-02 21:03:17,100 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 21:03:17,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 21:03:17,101 INFO L85 PathProgramCache]: Analyzing trace with hash 383662240, now seen corresponding path program 1 times
[2022-11-02 21:03:17,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 21:03:17,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148563829]
[2022-11-02 21:03:17,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 21:03:17,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 21:03:17,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 21:03:17,201 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked.
[2022-11-02 21:03:17,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 21:03:17,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148563829]
[2022-11-02 21:03:17,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148563829] provided 0 perfect and 1 imperfect interpolant sequences
[2022-11-02 21:03:17,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [702860792]
[2022-11-02 21:03:17,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 21:03:17,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 21:03:17,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5527252e-aef6-4dea-a9de-714720a00165/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 21:03:17,205 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5527252e-aef6-4dea-a9de-714720a00165/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-11-02 21:03:17,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5527252e-aef6-4dea-a9de-714720a00165/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2022-11-02 21:03:17,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 21:03:17,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 6 conjunts are in the unsatisfiable core
[2022-11-02 21:03:17,338 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 21:03:17,401 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2022-11-02 21:03:17,401 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-11-02 21:03:17,511 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2022-11-02 21:03:17,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [702860792] provided 0 perfect and 2 imperfect interpolant sequences
[2022-11-02 21:03:17,512 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-11-02 21:03:17,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 14
[2022-11-02 21:03:17,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008880216]
[2022-11-02 21:03:17,519 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-11-02 21:03:17,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2022-11-02 21:03:17,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 21:03:17,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2022-11-02 21:03:17,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182
[2022-11-02 21:03:17,523 INFO L87 Difference]: Start difference. First operand 57 states and 70 transitions. Second operand has 14 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 14 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 21:03:18,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 21:03:18,541 INFO L93 Difference]: Finished difference Result 623 states and 861 transitions.
[2022-11-02 21:03:18,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states.
[2022-11-02 21:03:18,542 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 14 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31
[2022-11-02 21:03:18,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 21:03:18,546 INFO L225 Difference]: With dead ends: 623
[2022-11-02 21:03:18,546 INFO L226 Difference]: Without dead ends: 577
[2022-11-02 21:03:18,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=396, Invalid=726, Unknown=0, NotChecked=0, Total=1122
[2022-11-02 21:03:18,549 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 1127 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 319 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1149 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 319 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2022-11-02 21:03:18,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1149 Valid, 428 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [319 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2022-11-02 21:03:18,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states.
[2022-11-02 21:03:18,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 88.
[2022-11-02 21:03:18,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 83 states have (on average 1.216867469879518) internal successors, (101), 83 states have internal predecessors, (101), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2022-11-02 21:03:18,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 107 transitions.
[2022-11-02 21:03:18,579 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 107 transitions. Word has length 31
[2022-11-02 21:03:18,579 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 21:03:18,580 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 107 transitions.
[2022-11-02 21:03:18,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 14 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 21:03:18,580 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 107 transitions.
[2022-11-02 21:03:18,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46
[2022-11-02 21:03:18,581 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 21:03:18,582 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 21:03:18,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5527252e-aef6-4dea-a9de-714720a00165/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2022-11-02 21:03:18,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5527252e-aef6-4dea-a9de-714720a00165/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-02 21:03:18,795 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 21:03:18,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 21:03:18,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1437829230, now seen corresponding path program 2 times
[2022-11-02 21:03:18,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 21:03:18,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023169028]
[2022-11-02 21:03:18,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 21:03:18,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 21:03:18,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 21:03:19,058 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked.
[2022-11-02 21:03:19,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 21:03:19,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023169028]
[2022-11-02 21:03:19,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023169028] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 21:03:19,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 21:03:19,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-11-02 21:03:19,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485119452]
[2022-11-02 21:03:19,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 21:03:19,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-11-02 21:03:19,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 21:03:19,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-11-02 21:03:19,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-11-02 21:03:19,062 INFO L87 Difference]: Start difference. First operand 88 states and 107 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 21:03:19,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 21:03:19,096 INFO L93 Difference]: Finished difference Result 153 states and 192 transitions.
[2022-11-02 21:03:19,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2022-11-02 21:03:19,097 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45
[2022-11-02 21:03:19,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 21:03:19,099 INFO L225 Difference]: With dead ends: 153
[2022-11-02 21:03:19,099 INFO L226 Difference]: Without dead ends: 114
[2022-11-02 21:03:19,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2022-11-02 21:03:19,106 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 18 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-11-02 21:03:19,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 177 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-11-02 21:03:19,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states.
[2022-11-02 21:03:19,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 91.
[2022-11-02 21:03:19,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 86 states have (on average 1.2093023255813953) internal successors, (104), 86 states have internal predecessors, (104), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2022-11-02 21:03:19,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 110 transitions.
[2022-11-02 21:03:19,152 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 110 transitions. Word has length 45
[2022-11-02 21:03:19,153 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 21:03:19,153 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 110 transitions.
[2022-11-02 21:03:19,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 21:03:19,154 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 110 transitions.
[2022-11-02 21:03:19,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46
[2022-11-02 21:03:19,157 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 21:03:19,158 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 21:03:19,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2022-11-02 21:03:19,159 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-11-02 21:03:19,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 21:03:19,160 INFO L85 PathProgramCache]: Analyzing trace with hash 311045192, now seen corresponding path program 1 times
[2022-11-02 21:03:19,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-11-02 21:03:19,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600479580]
[2022-11-02 21:03:19,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 21:03:19,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-02 21:03:19,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 21:03:19,398 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked.
[2022-11-02 21:03:19,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-11-02 21:03:19,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600479580]
[2022-11-02 21:03:19,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600479580] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 21:03:19,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 21:03:19,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-11-02 21:03:19,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947884007]
[2022-11-02 21:03:19,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 21:03:19,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-11-02 21:03:19,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-11-02 21:03:19,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-11-02 21:03:19,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-11-02 21:03:19,402 INFO L87 Difference]: Start difference. First operand 91 states and 110 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 21:03:19,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 21:03:19,425 INFO L93 Difference]: Finished difference Result 100 states and 121 transitions.
[2022-11-02 21:03:19,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2022-11-02 21:03:19,426 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45
[2022-11-02 21:03:19,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 21:03:19,428 INFO L225 Difference]: With dead ends: 100
[2022-11-02 21:03:19,428 INFO L226 Difference]: Without dead ends: 0
[2022-11-02 21:03:19,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2022-11-02 21:03:19,434 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 15 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-11-02 21:03:19,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 28 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-11-02 21:03:19,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2022-11-02 21:03:19,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2022-11-02 21:03:19,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 21:03:19,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2022-11-02 21:03:19,437 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45
[2022-11-02 21:03:19,437 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 21:03:19,438 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2022-11-02 21:03:19,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-02 21:03:19,438 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2022-11-02 21:03:19,438 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2022-11-02 21:03:19,441 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2022-11-02 21:03:19,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2022-11-02 21:03:19,446 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2022-11-02 21:03:19,724 INFO L899 garLoopResultBuilder]: For program point L52(lines 52 54) no Hoare annotation was computed.
[2022-11-02 21:03:19,724 INFO L899 garLoopResultBuilder]: For program point L52-2(lines 52 54) no Hoare annotation was computed.
[2022-11-02 21:03:19,724 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed.
[2022-11-02 21:03:19,724 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2022-11-02 21:03:19,725 INFO L899 garLoopResultBuilder]: For program point L61-2(lines 61 65) no Hoare annotation was computed.
[2022-11-02 21:03:19,725 INFO L895 garLoopResultBuilder]: At program point L61-3(lines 61 65) the Hoare annotation is: (and (= |ULTIMATE.start_main_~n~0#1| 0) (= |ULTIMATE.start_main_~x~0#1| 0))
[2022-11-02 21:03:19,725 INFO L899 garLoopResultBuilder]: For program point L61-4(lines 61 65) no Hoare annotation was computed.
[2022-11-02 21:03:19,725 INFO L899 garLoopResultBuilder]: For program point L62-2(lines 62 64) no Hoare annotation was computed.
[2022-11-02 21:03:19,726 INFO L895 garLoopResultBuilder]: At program point L62-3(lines 62 64) the Hoare annotation is: false
[2022-11-02 21:03:19,726 INFO L895 garLoopResultBuilder]: At program point L63(line 63) the Hoare annotation is: false
[2022-11-02 21:03:19,726 INFO L899 garLoopResultBuilder]: For program point L63-1(line 63) no Hoare annotation was computed.
[2022-11-02 21:03:19,726 INFO L899 garLoopResultBuilder]: For program point L55-2(lines 55 59) no Hoare annotation was computed.
[2022-11-02 21:03:19,726 INFO L899 garLoopResultBuilder]: For program point L22-2(lines 22 24) no Hoare annotation was computed.
[2022-11-02 21:03:19,726 INFO L895 garLoopResultBuilder]: At program point L55-3(lines 55 59) the Hoare annotation is: (and (= |ULTIMATE.start_elem_exists_~size#1| 0) (= |ULTIMATE.start_elem_exists_~i~0#1| 0) (= |ULTIMATE.start_main_~n~0#1| 0) (= |ULTIMATE.start_main_~x~0#1| 0))
[2022-11-02 21:03:19,727 INFO L895 garLoopResultBuilder]: At program point L22-3(lines 22 24) the Hoare annotation is: (and (= |ULTIMATE.start_elem_exists_~size#1| 0) (= |ULTIMATE.start_elem_exists_~i~0#1| 0) (= |ULTIMATE.start_main_~n~0#1| 0) (= |ULTIMATE.start_main_~x~0#1| 0))
[2022-11-02 21:03:19,727 INFO L899 garLoopResultBuilder]: For program point L22-4(lines 22 24) no Hoare annotation was computed.
[2022-11-02 21:03:19,727 INFO L899 garLoopResultBuilder]: For program point L47-2(lines 47 50) no Hoare annotation was computed.
[2022-11-02 21:03:19,727 INFO L895 garLoopResultBuilder]: At program point L47-3(lines 47 50) the Hoare annotation is: (and (= |ULTIMATE.start_main_~n~0#1| 0) (= |ULTIMATE.start_main_~x~0#1| 0))
[2022-11-02 21:03:19,727 INFO L899 garLoopResultBuilder]: For program point L47-4(lines 47 50) no Hoare annotation was computed.
[2022-11-02 21:03:19,727 INFO L899 garLoopResultBuilder]: For program point L39-2(lines 39 43) no Hoare annotation was computed.
[2022-11-02 21:03:19,728 INFO L895 garLoopResultBuilder]: At program point L39-3(lines 39 43) the Hoare annotation is: (and (= |ULTIMATE.start_main_~n~0#1| 0) (= |ULTIMATE.start_main_~x~0#1| 0))
[2022-11-02 21:03:19,728 INFO L899 garLoopResultBuilder]: For program point L39-4(lines 39 43) no Hoare annotation was computed.
[2022-11-02 21:03:19,728 INFO L899 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed.
[2022-11-02 21:03:19,728 INFO L899 garLoopResultBuilder]: For program point L56-2(lines 56 58) no Hoare annotation was computed.
[2022-11-02 21:03:19,728 INFO L895 garLoopResultBuilder]: At program point L56-3(lines 56 58) the Hoare annotation is: false
[2022-11-02 21:03:19,728 INFO L899 garLoopResultBuilder]: For program point L40-2(lines 40 42) no Hoare annotation was computed.
[2022-11-02 21:03:19,728 INFO L895 garLoopResultBuilder]: At program point L40-3(lines 40 42) the Hoare annotation is: false
[2022-11-02 21:03:19,729 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed.
[2022-11-02 21:03:19,729 INFO L895 garLoopResultBuilder]: At program point L57(line 57) the Hoare annotation is: false
[2022-11-02 21:03:19,729 INFO L899 garLoopResultBuilder]: For program point L57-1(line 57) no Hoare annotation was computed.
[2022-11-02 21:03:19,729 INFO L895 garLoopResultBuilder]: At program point L41(line 41) the Hoare annotation is: false
[2022-11-02 21:03:19,729 INFO L899 garLoopResultBuilder]: For program point L41-1(line 41) no Hoare annotation was computed.
[2022-11-02 21:03:19,729 INFO L902 garLoopResultBuilder]: At program point L66(lines 27 67) the Hoare annotation is: true
[2022-11-02 21:03:19,729 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2022-11-02 21:03:19,730 INFO L899 garLoopResultBuilder]: For program point L33-2(lines 33 36) no Hoare annotation was computed.
[2022-11-02 21:03:19,730 INFO L895 garLoopResultBuilder]: At program point L33-3(lines 33 36) the Hoare annotation is: (= |ULTIMATE.start_main_~n~0#1| 0)
[2022-11-02 21:03:19,730 INFO L899 garLoopResultBuilder]: For program point L33-4(lines 33 36) no Hoare annotation was computed.
[2022-11-02 21:03:19,730 INFO L895 garLoopResultBuilder]: At program point L25(lines 20 26) the Hoare annotation is: (and (= |ULTIMATE.start_elem_exists_~size#1| 0) (= |ULTIMATE.start_elem_exists_~i~0#1| 0) (= 0 |ULTIMATE.start_elem_exists_#res#1|) (= |ULTIMATE.start_main_~n~0#1| 0) (= |ULTIMATE.start_main_~x~0#1| 0))
[2022-11-02 21:03:19,730 INFO L895 garLoopResultBuilder]: At program point L18(lines 16 19) the Hoare annotation is: false
[2022-11-02 21:03:19,730 INFO L899 garLoopResultBuilder]: For program point L51-2(lines 51 60) no Hoare annotation was computed.
[2022-11-02 21:03:19,731 INFO L895 garLoopResultBuilder]: At program point L51-3(lines 51 60) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~n~0#1| 0)) (.cse1 (= |ULTIMATE.start_main_~x~0#1| 0))) (or (and (= |ULTIMATE.start_elem_exists_~size#1| 0) (= |ULTIMATE.start_elem_exists_~i~0#1| 0) .cse0 .cse1) (and .cse0 (= |ULTIMATE.start_main_~v~0#1| 0) .cse1)))
[2022-11-02 21:03:19,731 INFO L899 garLoopResultBuilder]: For program point L51-4(lines 51 60) no Hoare annotation was computed.
[2022-11-02 21:03:19,731 INFO L902 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(line 13) the Hoare annotation is: true
[2022-11-02 21:03:19,731 INFO L899 garLoopResultBuilder]: For program point L13(line 13) no Hoare annotation was computed.
[2022-11-02 21:03:19,731 INFO L899 garLoopResultBuilder]: For program point L13-1(line 13) no Hoare annotation was computed.
[2022-11-02 21:03:19,731 INFO L899 garLoopResultBuilder]: For program point L13-3(line 13) no Hoare annotation was computed.
[2022-11-02 21:03:19,732 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(line 13) no Hoare annotation was computed.
[2022-11-02 21:03:19,732 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed.
[2022-11-02 21:03:19,736 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1]
[2022-11-02 21:03:19,738 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2022-11-02 21:03:19,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 09:03:19 BoogieIcfgContainer
[2022-11-02 21:03:19,757 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-11-02 21:03:19,758 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2022-11-02 21:03:19,758 INFO L271 PluginConnector]: Initializing Witness Printer...
[2022-11-02 21:03:19,758 INFO L275 PluginConnector]: Witness Printer initialized
[2022-11-02 21:03:19,759 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:03:14" (3/4) ...
[2022-11-02 21:03:19,762 INFO L137 WitnessPrinter]: Generating witness for correct program
[2022-11-02 21:03:19,770 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert
[2022-11-02 21:03:19,776 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges
[2022-11-02 21:03:19,776 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges
[2022-11-02 21:03:19,776 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges
[2022-11-02 21:03:19,777 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2022-11-02 21:03:19,807 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((size == 0 && i == 0) && 0 == \result) && n == 0) && x == 0
[2022-11-02 21:03:19,822 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5527252e-aef6-4dea-a9de-714720a00165/bin/uautomizer-Dbtcem3rbc/witness.graphml
[2022-11-02 21:03:19,822 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2022-11-02 21:03:19,823 INFO L158 Benchmark]: Toolchain (without parser) took 5965.43ms. Allocated memory was 136.3MB in the beginning and 167.8MB in the end (delta: 31.5MB). Free memory was 100.4MB in the beginning and 80.6MB in the end (delta: 19.8MB). Peak memory consumption was 49.8MB. Max. memory is 16.1GB.
[2022-11-02 21:03:19,824 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 79.7MB. Free memory was 49.4MB in the beginning and 49.4MB in the end (delta: 29.3kB). There was no memory consumed. Max. memory is 16.1GB.
[2022-11-02 21:03:19,824 INFO L158 Benchmark]: CACSL2BoogieTranslator took 399.03ms. Allocated memory is still 136.3MB. Free memory was 100.3MB in the beginning and 112.4MB in the end (delta: -12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2022-11-02 21:03:19,824 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.59ms. Allocated memory is still 136.3MB. Free memory was 112.4MB in the beginning and 110.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-02 21:03:19,825 INFO L158 Benchmark]: Boogie Preprocessor took 72.84ms. Allocated memory is still 136.3MB. Free memory was 110.3MB in the beginning and 108.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-02 21:03:19,825 INFO L158 Benchmark]: RCFGBuilder took 488.18ms. Allocated memory is still 136.3MB. Free memory was 108.9MB in the beginning and 93.7MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
[2022-11-02 21:03:19,826 INFO L158 Benchmark]: TraceAbstraction took 4851.20ms. Allocated memory was 136.3MB in the beginning and 167.8MB in the end (delta: 31.5MB). Free memory was 93.5MB in the beginning and 83.7MB in the end (delta: 9.8MB). Peak memory consumption was 44.4MB. Max. memory is 16.1GB.
[2022-11-02 21:03:19,826 INFO L158 Benchmark]: Witness Printer took 64.82ms. Allocated memory is still 167.8MB. Free memory was 83.7MB in the beginning and 80.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-02 21:03:19,828 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.30ms. Allocated memory is still 79.7MB. Free memory was 49.4MB in the beginning and 49.4MB in the end (delta: 29.3kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 399.03ms. Allocated memory is still 136.3MB. Free memory was 100.3MB in the beginning and 112.4MB in the end (delta: -12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 78.59ms. Allocated memory is still 136.3MB. Free memory was 112.4MB in the beginning and 110.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 72.84ms. Allocated memory is still 136.3MB. Free memory was 110.3MB in the beginning and 108.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 488.18ms. Allocated memory is still 136.3MB. Free memory was 108.9MB in the beginning and 93.7MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
* TraceAbstraction took 4851.20ms. Allocated memory was 136.3MB in the beginning and 167.8MB in the end (delta: 31.5MB). Free memory was 93.5MB in the beginning and 83.7MB in the end (delta: 9.8MB). Peak memory consumption was 44.4MB. Max. memory is 16.1GB.
* Witness Printer took 64.82ms. Allocated memory is still 167.8MB. Free memory was 83.7MB in the beginning and 80.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- 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: 13]: 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
CFG has 2 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.7s, OverallIterations: 7, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1425 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1385 mSDsluCounter, 1167 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 799 mSDsCounter, 355 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 465 IncrementalHoareTripleChecker+Invalid, 820 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 355 mSolverCounterUnsat, 368 mSDtfsCounter, 465 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 131 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=91occurred in iteration=6, InterpolantAutomatonStates: 58, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 699 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 17 LocationsWithAnnotation, 35 PreInvPairs, 58 NumberOfFragments, 99 HoareAnnotationTreeSize, 35 FomulaSimplifications, 92 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 17 FomulaSimplificationsInter, 438 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 233 NumberOfCodeBlocks, 233 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 265 ConstructedInterpolants, 0 QuantifiedInterpolants, 427 SizeOfPredicates, 0 NumberOfNonLiveVariables, 245 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 11 InterpolantComputations, 5 PerfectInterpolantSequences, 258/294 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
1 specifications checked. All of them hold
- InvariantResult [Line: 39]: Loop Invariant
Derived loop invariant: n == 0 && x == 0
- InvariantResult [Line: 27]: Loop Invariant
Derived loop invariant: 1
- InvariantResult [Line: 55]: Loop Invariant
Derived loop invariant: ((size == 0 && i == 0) && n == 0) && x == 0
- InvariantResult [Line: 51]: Loop Invariant
Derived loop invariant: (((size == 0 && i == 0) && n == 0) && x == 0) || ((n == 0 && v == 0) && x == 0)
- InvariantResult [Line: 20]: Loop Invariant
Derived loop invariant: (((size == 0 && i == 0) && 0 == \result) && n == 0) && x == 0
- InvariantResult [Line: 61]: Loop Invariant
Derived loop invariant: n == 0 && x == 0
- InvariantResult [Line: 16]: Loop Invariant
Derived loop invariant: 0
- InvariantResult [Line: 40]: Loop Invariant
Derived loop invariant: 0
- InvariantResult [Line: 47]: Loop Invariant
Derived loop invariant: n == 0 && x == 0
- InvariantResult [Line: 56]: Loop Invariant
Derived loop invariant: 0
- InvariantResult [Line: 22]: Loop Invariant
Derived loop invariant: ((size == 0 && i == 0) && n == 0) && x == 0
- InvariantResult [Line: 33]: Loop Invariant
Derived loop invariant: n == 0
- InvariantResult [Line: 62]: Loop Invariant
Derived loop invariant: 0
RESULT: Ultimate proved your program to be correct!
[2022-11-02 21:03:19,885 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5527252e-aef6-4dea-a9de-714720a00165/bin/uautomizer-Dbtcem3rbc/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