./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/xcsp/aim-200-1-6-sat-3.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version d790fecc
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b462258-e4fa-45f6-923f-057bf3d55421/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b462258-e4fa-45f6-923f-057bf3d55421/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b462258-e4fa-45f6-923f-057bf3d55421/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b462258-e4fa-45f6-923f-057bf3d55421/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/xcsp/aim-200-1-6-sat-3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b462258-e4fa-45f6-923f-057bf3d55421/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b462258-e4fa-45f6-923f-057bf3d55421/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --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 8255c5aea58330e75209ab4ae1d12d1c7530dde28f70a9e3656152d86b1e7db7
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-11-28 05:03:59,972 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-28 05:04:00,105 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b462258-e4fa-45f6-923f-057bf3d55421/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-28 05:04:00,112 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-28 05:04:00,112 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-28 05:04:00,155 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-28 05:04:00,156 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-28 05:04:00,156 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-28 05:04:00,156 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-28 05:04:00,157 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-28 05:04:00,157 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-28 05:04:00,157 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-28 05:04:00,158 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-28 05:04:00,158 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-28 05:04:00,158 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-28 05:04:00,158 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-28 05:04:00,159 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-28 05:04:00,159 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-28 05:04:00,159 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-28 05:04:00,159 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-28 05:04:00,159 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-28 05:04:00,159 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-28 05:04:00,160 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-28 05:04:00,160 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-28 05:04:00,160 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-28 05:04:00,160 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-28 05:04:00,160 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-28 05:04:00,160 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-28 05:04:00,161 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-28 05:04:00,161 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-28 05:04:00,161 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-28 05:04:00,161 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-28 05:04:00,161 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-28 05:04:00,161 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-28 05:04:00,162 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-28 05:04:00,162 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-28 05:04:00,162 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-28 05:04:00,162 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-28 05:04:00,162 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-28 05:04:00,162 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-28 05:04:00,162 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2024-11-28 05:04:00,162 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-28 05:04:00,162 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-28 05:04:00,162 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-28 05:04:00,163 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-28 05:04:00,163 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-28 05:04:00,163 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-28 05:04:00,163 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-28 05:04:00,163 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
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_5b462258-e4fa-45f6-923f-057bf3d55421/bin/uautomizer-verify-aQ6SnzHsRB
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
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 -> 8255c5aea58330e75209ab4ae1d12d1c7530dde28f70a9e3656152d86b1e7db7
[2024-11-28 05:04:00,531 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-28 05:04:00,548 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-28 05:04:00,554 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-28 05:04:00,556 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-28 05:04:00,557 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-28 05:04:00,558 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b462258-e4fa-45f6-923f-057bf3d55421/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/xcsp/aim-200-1-6-sat-3.c
[2024-11-28 05:04:04,067 INFO  L533              CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b462258-e4fa-45f6-923f-057bf3d55421/bin/uautomizer-verify-aQ6SnzHsRB/data/e6dd934f7/dacb035a3eb84379b03d18fb020861e7/FLAG099aea41c
[2024-11-28 05:04:04,599 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-28 05:04:04,600 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b462258-e4fa-45f6-923f-057bf3d55421/sv-benchmarks/c/xcsp/aim-200-1-6-sat-3.c
[2024-11-28 05:04:04,628 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b462258-e4fa-45f6-923f-057bf3d55421/bin/uautomizer-verify-aQ6SnzHsRB/data/e6dd934f7/dacb035a3eb84379b03d18fb020861e7/FLAG099aea41c
[2024-11-28 05:04:04,647 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b462258-e4fa-45f6-923f-057bf3d55421/bin/uautomizer-verify-aQ6SnzHsRB/data/e6dd934f7/dacb035a3eb84379b03d18fb020861e7
[2024-11-28 05:04:04,649 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-28 05:04:04,651 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-28 05:04:04,653 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-28 05:04:04,653 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-28 05:04:04,658 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-28 05:04:04,659 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:04:04" (1/1) ...
[2024-11-28 05:04:04,660 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6417e1b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:04, skipping insertion in model container
[2024-11-28 05:04:04,661 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:04:04" (1/1) ...
[2024-11-28 05:04:04,731 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-28 05:04:05,288 WARN  L250   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_5b462258-e4fa-45f6-923f-057bf3d55421/sv-benchmarks/c/xcsp/aim-200-1-6-sat-3.c[38158,38171]
[2024-11-28 05:04:05,340 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-28 05:04:05,352 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-28 05:04:05,570 WARN  L250   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_5b462258-e4fa-45f6-923f-057bf3d55421/sv-benchmarks/c/xcsp/aim-200-1-6-sat-3.c[38158,38171]
[2024-11-28 05:04:05,584 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-28 05:04:05,600 INFO  L204         MainTranslator]: Completed translation
[2024-11-28 05:04:05,601 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:05 WrapperNode
[2024-11-28 05:04:05,601 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-28 05:04:05,602 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-28 05:04:05,602 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-28 05:04:05,602 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-28 05:04:05,610 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:05" (1/1) ...
[2024-11-28 05:04:05,678 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:05" (1/1) ...
[2024-11-28 05:04:06,207 INFO  L138                Inliner]: procedures = 13, calls = 718, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 6887
[2024-11-28 05:04:06,208 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-28 05:04:06,210 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-28 05:04:06,210 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-28 05:04:06,210 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-28 05:04:06,223 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:05" (1/1) ...
[2024-11-28 05:04:06,223 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:05" (1/1) ...
[2024-11-28 05:04:06,344 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:05" (1/1) ...
[2024-11-28 05:04:06,510 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-28 05:04:06,511 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:05" (1/1) ...
[2024-11-28 05:04:06,511 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:05" (1/1) ...
[2024-11-28 05:04:06,806 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:05" (1/1) ...
[2024-11-28 05:04:06,856 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:05" (1/1) ...
[2024-11-28 05:04:06,918 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:05" (1/1) ...
[2024-11-28 05:04:06,959 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:05" (1/1) ...
[2024-11-28 05:04:06,979 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:05" (1/1) ...
[2024-11-28 05:04:07,058 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-28 05:04:07,059 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-28 05:04:07,060 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-28 05:04:07,060 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-28 05:04:07,061 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:05" (1/1) ...
[2024-11-28 05:04:07,068 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-28 05:04:07,083 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b462258-e4fa-45f6-923f-057bf3d55421/bin/uautomizer-verify-aQ6SnzHsRB/z3
[2024-11-28 05:04:07,102 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b462258-e4fa-45f6-923f-057bf3d55421/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-28 05:04:07,107 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b462258-e4fa-45f6-923f-057bf3d55421/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-28 05:04:07,141 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-28 05:04:07,141 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-28 05:04:07,141 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-28 05:04:07,141 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-28 05:04:07,142 INFO  L130     BoogieDeclarations]: Found specification of procedure assume
[2024-11-28 05:04:07,142 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume
[2024-11-28 05:04:07,546 INFO  L234             CfgBuilder]: Building ICFG
[2024-11-28 05:04:07,549 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-28 05:04:24,759 INFO  L?                        ?]: Removed 1607 outVars from TransFormulas that were not future-live.
[2024-11-28 05:04:24,759 INFO  L283             CfgBuilder]: Performing block encoding
[2024-11-28 05:04:24,879 INFO  L307             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-28 05:04:24,879 INFO  L312             CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-28 05:04:24,880 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:04:24 BoogieIcfgContainer
[2024-11-28 05:04:24,880 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-28 05:04:24,885 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-28 05:04:24,885 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-28 05:04:24,891 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-28 05:04:24,892 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:04:04" (1/3) ...
[2024-11-28 05:04:24,893 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d4cd453 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:04:24, skipping insertion in model container
[2024-11-28 05:04:24,893 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:04:05" (2/3) ...
[2024-11-28 05:04:24,893 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d4cd453 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:04:24, skipping insertion in model container
[2024-11-28 05:04:24,894 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:04:24" (3/3) ...
[2024-11-28 05:04:24,897 INFO  L128   eAbstractionObserver]: Analyzing ICFG aim-200-1-6-sat-3.c
[2024-11-28 05:04:24,920 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-28 05:04:24,922 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG aim-200-1-6-sat-3.c that has 2 procedures, 3168 locations, 1 initial locations, 0 loop locations, and 1 error locations.
[2024-11-28 05:04:25,136 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-28 05:04:25,154 INFO  L333      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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@3e6b79c3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-28 05:04:25,154 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-28 05:04:25,169 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 3168 states, 2454 states have (on average 1.5264873675631623) internal successors, (3746), 2455 states have internal predecessors, (3746), 711 states have call successors, (711), 1 states have call predecessors, (711), 1 states have return successors, (711), 711 states have call predecessors, (711), 711 states have call successors, (711)
[2024-11-28 05:04:25,540 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4715
[2024-11-28 05:04:25,541 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-28 05:04:25,544 INFO  L218           NwaCegarLoop]: trace histogram [711, 711, 711, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2024-11-28 05:04:25,545 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-28 05:04:25,553 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 05:04:25,555 INFO  L85        PathProgramCache]: Analyzing trace with hash 855175962, now seen corresponding path program 1 times
[2024-11-28 05:04:25,564 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 05:04:25,565 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365352600]
[2024-11-28 05:04:25,567 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 05:04:25,568 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 05:04:26,045 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 05:04:32,100 INFO  L134       CoverageAnalysis]: Checked inductivity of 1009620 backedges. 0 proven. 1420 refuted. 0 times theorem prover too weak. 1008200 trivial. 0 not checked.
[2024-11-28 05:04:32,102 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-28 05:04:32,105 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365352600]
[2024-11-28 05:04:32,106 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365352600] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-28 05:04:32,107 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2067810097]
[2024-11-28 05:04:32,108 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 05:04:32,108 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-28 05:04:32,109 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b462258-e4fa-45f6-923f-057bf3d55421/bin/uautomizer-verify-aQ6SnzHsRB/z3
[2024-11-28 05:04:32,113 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b462258-e4fa-45f6-923f-057bf3d55421/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-28 05:04:32,116 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b462258-e4fa-45f6-923f-057bf3d55421/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-28 05:04:34,397 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 05:04:34,431 INFO  L256         TraceCheckSpWp]: Trace formula consists of 9071 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-28 05:04:34,536 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-11-28 05:04:35,108 INFO  L134       CoverageAnalysis]: Checked inductivity of 1009620 backedges. 1420 proven. 0 refuted. 0 times theorem prover too weak. 1008200 trivial. 0 not checked.
[2024-11-28 05:04:35,108 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-28 05:04:35,108 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2067810097] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-28 05:04:35,108 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-28 05:04:35,110 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-28 05:04:35,112 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439747136]
[2024-11-28 05:04:35,113 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-28 05:04:35,125 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-28 05:04:35,125 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-28 05:04:35,161 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-28 05:04:35,162 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-28 05:04:35,175 INFO  L87              Difference]: Start difference. First operand  has 3168 states, 2454 states have (on average 1.5264873675631623) internal successors, (3746), 2455 states have internal predecessors, (3746), 711 states have call successors, (711), 1 states have call predecessors, (711), 1 states have return successors, (711), 711 states have call predecessors, (711), 711 states have call successors, (711) Second operand  has 2 states, 2 states have (on average 582.0) internal successors, (1164), 2 states have internal predecessors, (1164), 2 states have call successors, (711), 2 states have call predecessors, (711), 1 states have return successors, (711), 1 states have call predecessors, (711), 2 states have call successors, (711)
[2024-11-28 05:04:35,672 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-28 05:04:35,673 INFO  L93              Difference]: Finished difference Result 6330 states and 11041 transitions.
[2024-11-28 05:04:35,674 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-28 05:04:35,678 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 582.0) internal successors, (1164), 2 states have internal predecessors, (1164), 2 states have call successors, (711), 2 states have call predecessors, (711), 1 states have return successors, (711), 1 states have call predecessors, (711), 2 states have call successors, (711) Word has length 4714
[2024-11-28 05:04:35,682 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-28 05:04:35,739 INFO  L225             Difference]: With dead ends: 6330
[2024-11-28 05:04:35,740 INFO  L226             Difference]: Without dead ends: 3165
[2024-11-28 05:04:35,762 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 4715 GetRequests, 4715 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-28 05:04:35,770 INFO  L435           NwaCegarLoop]: 5164 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5164 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-28 05:04:35,773 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5164 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-28 05:04:35,802 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3165 states.
[2024-11-28 05:04:36,623 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3165 to 3165.
[2024-11-28 05:04:36,632 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3165 states, 2452 states have (on average 1.5261011419249593) internal successors, (3742), 2452 states have internal predecessors, (3742), 711 states have call successors, (711), 1 states have call predecessors, (711), 1 states have return successors, (711), 711 states have call predecessors, (711), 711 states have call successors, (711)
[2024-11-28 05:04:36,664 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3165 states to 3165 states and 5164 transitions.
[2024-11-28 05:04:36,672 INFO  L78                 Accepts]: Start accepts. Automaton has 3165 states and 5164 transitions. Word has length 4714
[2024-11-28 05:04:36,674 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-28 05:04:36,674 INFO  L471      AbstractCegarLoop]: Abstraction has 3165 states and 5164 transitions.
[2024-11-28 05:04:36,676 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 582.0) internal successors, (1164), 2 states have internal predecessors, (1164), 2 states have call successors, (711), 2 states have call predecessors, (711), 1 states have return successors, (711), 1 states have call predecessors, (711), 2 states have call successors, (711)
[2024-11-28 05:04:36,676 INFO  L276                IsEmpty]: Start isEmpty. Operand 3165 states and 5164 transitions.
[2024-11-28 05:04:36,885 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4715
[2024-11-28 05:04:36,885 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-28 05:04:36,887 INFO  L218           NwaCegarLoop]: trace histogram [711, 711, 711, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2024-11-28 05:04:36,904 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b462258-e4fa-45f6-923f-057bf3d55421/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-28 05:04:37,088 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b462258-e4fa-45f6-923f-057bf3d55421/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2024-11-28 05:04:37,088 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-28 05:04:37,090 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 05:04:37,092 INFO  L85        PathProgramCache]: Analyzing trace with hash 1837175716, now seen corresponding path program 1 times
[2024-11-28 05:04:37,092 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 05:04:37,092 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632109640]
[2024-11-28 05:04:37,093 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 05:04:37,094 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 05:04:41,993 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 05:06:39,092 INFO  L134       CoverageAnalysis]: Checked inductivity of 1009620 backedges. 5160 proven. 15870 refuted. 0 times theorem prover too weak. 988590 trivial. 0 not checked.
[2024-11-28 05:06:39,093 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-28 05:06:39,093 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632109640]
[2024-11-28 05:06:39,094 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632109640] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-28 05:06:39,096 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1602948507]
[2024-11-28 05:06:39,098 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 05:06:39,099 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-28 05:06:39,099 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b462258-e4fa-45f6-923f-057bf3d55421/bin/uautomizer-verify-aQ6SnzHsRB/z3
[2024-11-28 05:06:39,103 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b462258-e4fa-45f6-923f-057bf3d55421/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-28 05:06:39,106 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b462258-e4fa-45f6-923f-057bf3d55421/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-28 05:06:41,636 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 05:06:41,695 INFO  L256         TraceCheckSpWp]: Trace formula consists of 9071 conjuncts, 34 conjuncts are in the unsatisfiable core
[2024-11-28 05:06:41,785 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-11-28 05:07:00,516 INFO  L134       CoverageAnalysis]: Checked inductivity of 1009620 backedges. 291240 proven. 8532 refuted. 0 times theorem prover too weak. 709848 trivial. 0 not checked.
[2024-11-28 05:07:00,516 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2024-11-28 05:07:28,040 INFO  L134       CoverageAnalysis]: Checked inductivity of 1009620 backedges. 1944 proven. 10746 refuted. 0 times theorem prover too weak. 996930 trivial. 0 not checked.
[2024-11-28 05:07:28,040 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1602948507] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-28 05:07:28,041 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-28 05:07:28,043 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 13, 13] total 35
[2024-11-28 05:07:28,043 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503010716]
[2024-11-28 05:07:28,043 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-28 05:07:28,068 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 35 states
[2024-11-28 05:07:28,068 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-28 05:07:28,076 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants.
[2024-11-28 05:07:28,078 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=1032, Unknown=0, NotChecked=0, Total=1190
[2024-11-28 05:07:28,083 INFO  L87              Difference]: Start difference. First operand 3165 states and 5164 transitions. Second operand  has 35 states, 23 states have (on average 117.82608695652173) internal successors, (2710), 25 states have internal predecessors, (2710), 29 states have call successors, (1839), 2 states have call predecessors, (1839), 3 states have return successors, (1842), 27 states have call predecessors, (1842), 29 states have call successors, (1842)
[2024-11-28 05:08:08,059 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-28 05:08:08,059 INFO  L93              Difference]: Finished difference Result 20740 states and 33783 transitions.
[2024-11-28 05:08:08,060 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. 
[2024-11-28 05:08:08,064 INFO  L78                 Accepts]: Start accepts. Automaton has  has 35 states, 23 states have (on average 117.82608695652173) internal successors, (2710), 25 states have internal predecessors, (2710), 29 states have call successors, (1839), 2 states have call predecessors, (1839), 3 states have return successors, (1842), 27 states have call predecessors, (1842), 29 states have call successors, (1842) Word has length 4714
[2024-11-28 05:08:08,080 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-28 05:08:08,195 INFO  L225             Difference]: With dead ends: 20740
[2024-11-28 05:08:08,195 INFO  L226             Difference]: Without dead ends: 18378
[2024-11-28 05:08:08,208 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 9516 GetRequests, 9432 SyntacticMatches, 6 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1382 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=1873, Invalid=4447, Unknown=0, NotChecked=0, Total=6320
[2024-11-28 05:08:08,211 INFO  L435           NwaCegarLoop]: 10517 mSDtfsCounter, 116573 mSDsluCounter, 85842 mSDsCounter, 0 mSdLazyCounter, 16256 mSolverCounterSat, 9884 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116573 SdHoareTripleChecker+Valid, 96359 SdHoareTripleChecker+Invalid, 26140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.5s SdHoareTripleChecker+Time, 9884 IncrementalHoareTripleChecker+Valid, 16256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.1s IncrementalHoareTripleChecker+Time
[2024-11-28 05:08:08,211 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [116573 Valid, 96359 Invalid, 26140 Unknown, 0 Unchecked, 0.5s Time], IncrementalHoareTripleChecker [9884 Valid, 16256 Invalid, 0 Unknown, 0 Unchecked, 31.1s Time]
[2024-11-28 05:08:08,241 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 18378 states.
[2024-11-28 05:08:10,763 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 18378 to 8708.
[2024-11-28 05:08:10,782 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8708 states, 7321 states have (on average 1.5573009151755224) internal successors, (11401), 7321 states have internal predecessors, (11401), 1385 states have call successors, (1385), 1 states have call predecessors, (1385), 1 states have return successors, (1385), 1385 states have call predecessors, (1385), 1385 states have call successors, (1385)
[2024-11-28 05:08:10,816 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8708 states to 8708 states and 14171 transitions.
[2024-11-28 05:08:10,827 INFO  L78                 Accepts]: Start accepts. Automaton has 8708 states and 14171 transitions. Word has length 4714
[2024-11-28 05:08:10,837 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-28 05:08:10,837 INFO  L471      AbstractCegarLoop]: Abstraction has 8708 states and 14171 transitions.
[2024-11-28 05:08:10,840 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 35 states, 23 states have (on average 117.82608695652173) internal successors, (2710), 25 states have internal predecessors, (2710), 29 states have call successors, (1839), 2 states have call predecessors, (1839), 3 states have return successors, (1842), 27 states have call predecessors, (1842), 29 states have call successors, (1842)
[2024-11-28 05:08:10,841 INFO  L276                IsEmpty]: Start isEmpty. Operand 8708 states and 14171 transitions.
[2024-11-28 05:08:11,188 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4717
[2024-11-28 05:08:11,188 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-28 05:08:11,191 INFO  L218           NwaCegarLoop]: trace histogram [711, 711, 711, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2024-11-28 05:08:11,223 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b462258-e4fa-45f6-923f-057bf3d55421/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-28 05:08:11,392 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b462258-e4fa-45f6-923f-057bf3d55421/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-28 05:08:11,392 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-28 05:08:11,395 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 05:08:11,397 INFO  L85        PathProgramCache]: Analyzing trace with hash 940170454, now seen corresponding path program 1 times
[2024-11-28 05:08:11,402 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 05:08:11,402 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307653699]
[2024-11-28 05:08:11,403 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 05:08:11,403 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 05:08:14,895 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 05:08:46,323 INFO  L134       CoverageAnalysis]: Checked inductivity of 1009620 backedges. 1080 proven. 3174 refuted. 0 times theorem prover too weak. 1005366 trivial. 0 not checked.
[2024-11-28 05:08:46,323 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-28 05:08:46,323 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307653699]
[2024-11-28 05:08:46,323 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307653699] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-28 05:08:46,323 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [822587618]
[2024-11-28 05:08:46,324 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 05:08:46,324 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-28 05:08:46,324 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b462258-e4fa-45f6-923f-057bf3d55421/bin/uautomizer-verify-aQ6SnzHsRB/z3
[2024-11-28 05:08:46,326 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b462258-e4fa-45f6-923f-057bf3d55421/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-28 05:08:46,328 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b462258-e4fa-45f6-923f-057bf3d55421/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-28 05:08:48,406 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 05:08:48,446 INFO  L256         TraceCheckSpWp]: Trace formula consists of 9077 conjuncts, 36 conjuncts are in the unsatisfiable core
[2024-11-28 05:08:48,525 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-11-28 05:09:03,041 INFO  L134       CoverageAnalysis]: Checked inductivity of 1009620 backedges. 366944 proven. 6132 refuted. 0 times theorem prover too weak. 636544 trivial. 0 not checked.
[2024-11-28 05:09:03,041 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2024-11-28 05:09:22,286 INFO  L134       CoverageAnalysis]: Checked inductivity of 1009620 backedges. 3552 proven. 9138 refuted. 0 times theorem prover too weak. 996930 trivial. 0 not checked.
[2024-11-28 05:09:22,287 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [822587618] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-28 05:09:22,287 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-28 05:09:22,288 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 15, 15] total 28
[2024-11-28 05:09:22,288 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631832806]
[2024-11-28 05:09:22,288 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-28 05:09:22,297 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 28 states
[2024-11-28 05:09:22,297 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-28 05:09:22,305 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants.
[2024-11-28 05:09:22,306 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=599, Unknown=0, NotChecked=0, Total=756
[2024-11-28 05:09:22,309 INFO  L87              Difference]: Start difference. First operand 8708 states and 14171 transitions. Second operand  has 28 states, 22 states have (on average 119.63636363636364) internal successors, (2632), 22 states have internal predecessors, (2632), 18 states have call successors, (1712), 2 states have call predecessors, (1712), 3 states have return successors, (1714), 18 states have call predecessors, (1714), 18 states have call successors, (1714)
[2024-11-28 05:09:39,611 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-28 05:09:39,612 INFO  L93              Difference]: Finished difference Result 27490 states and 44816 transitions.
[2024-11-28 05:09:39,612 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. 
[2024-11-28 05:09:39,615 INFO  L78                 Accepts]: Start accepts. Automaton has  has 28 states, 22 states have (on average 119.63636363636364) internal successors, (2632), 22 states have internal predecessors, (2632), 18 states have call successors, (1712), 2 states have call predecessors, (1712), 3 states have return successors, (1714), 18 states have call predecessors, (1714), 18 states have call successors, (1714) Word has length 4716
[2024-11-28 05:09:39,622 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-28 05:09:39,769 INFO  L225             Difference]: With dead ends: 27490
[2024-11-28 05:09:39,769 INFO  L226             Difference]: Without dead ends: 21819
[2024-11-28 05:09:39,788 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 9472 GetRequests, 9412 SyntacticMatches, 4 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 606 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=894, Invalid=2412, Unknown=0, NotChecked=0, Total=3306
[2024-11-28 05:09:39,795 INFO  L435           NwaCegarLoop]: 6515 mSDtfsCounter, 26017 mSDsluCounter, 44694 mSDsCounter, 0 mSdLazyCounter, 9205 mSolverCounterSat, 1395 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26057 SdHoareTripleChecker+Valid, 51209 SdHoareTripleChecker+Invalid, 10600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1395 IncrementalHoareTripleChecker+Valid, 9205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time
[2024-11-28 05:09:39,795 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [26057 Valid, 51209 Invalid, 10600 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1395 Valid, 9205 Invalid, 0 Unknown, 0 Unchecked, 13.5s Time]
[2024-11-28 05:09:39,822 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 21819 states.
[2024-11-28 05:09:43,834 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 21819 to 19973.
[2024-11-28 05:09:43,914 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 19973 states, 17237 states have (on average 1.568138307130011) internal successors, (27030), 17237 states have internal predecessors, (27030), 2734 states have call successors, (2734), 1 states have call predecessors, (2734), 1 states have return successors, (2734), 2734 states have call predecessors, (2734), 2734 states have call successors, (2734)
[2024-11-28 05:09:44,015 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 19973 states to 19973 states and 32498 transitions.
[2024-11-28 05:09:44,036 INFO  L78                 Accepts]: Start accepts. Automaton has 19973 states and 32498 transitions. Word has length 4716
[2024-11-28 05:09:44,042 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-28 05:09:44,043 INFO  L471      AbstractCegarLoop]: Abstraction has 19973 states and 32498 transitions.
[2024-11-28 05:09:44,045 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 28 states, 22 states have (on average 119.63636363636364) internal successors, (2632), 22 states have internal predecessors, (2632), 18 states have call successors, (1712), 2 states have call predecessors, (1712), 3 states have return successors, (1714), 18 states have call predecessors, (1714), 18 states have call successors, (1714)
[2024-11-28 05:09:44,045 INFO  L276                IsEmpty]: Start isEmpty. Operand 19973 states and 32498 transitions.
[2024-11-28 05:09:44,621 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4717
[2024-11-28 05:09:44,622 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-28 05:09:44,624 INFO  L218           NwaCegarLoop]: trace histogram [711, 711, 711, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2024-11-28 05:09:44,662 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b462258-e4fa-45f6-923f-057bf3d55421/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-11-28 05:09:44,825 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b462258-e4fa-45f6-923f-057bf3d55421/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-28 05:09:44,826 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-28 05:09:44,827 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 05:09:44,831 INFO  L85        PathProgramCache]: Analyzing trace with hash -310996056, now seen corresponding path program 1 times
[2024-11-28 05:09:44,831 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 05:09:44,832 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262706666]
[2024-11-28 05:09:44,833 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 05:09:44,833 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 05:09:47,955 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 05:13:08,749 INFO  L134       CoverageAnalysis]: Checked inductivity of 1009620 backedges. 5844 proven. 27516 refuted. 0 times theorem prover too weak. 976260 trivial. 0 not checked.
[2024-11-28 05:13:08,749 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-28 05:13:08,750 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262706666]
[2024-11-28 05:13:08,750 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262706666] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-28 05:13:08,750 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1711704708]
[2024-11-28 05:13:08,753 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 05:13:08,754 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-28 05:13:08,755 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b462258-e4fa-45f6-923f-057bf3d55421/bin/uautomizer-verify-aQ6SnzHsRB/z3
[2024-11-28 05:13:08,763 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b462258-e4fa-45f6-923f-057bf3d55421/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-28 05:13:08,768 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b462258-e4fa-45f6-923f-057bf3d55421/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-28 05:13:11,716 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 05:13:11,773 INFO  L256         TraceCheckSpWp]: Trace formula consists of 9077 conjuncts, 46 conjuncts are in the unsatisfiable core
[2024-11-28 05:13:11,898 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-11-28 05:13:54,591 INFO  L134       CoverageAnalysis]: Checked inductivity of 1009620 backedges. 47288 proven. 13680 refuted. 0 times theorem prover too weak. 948652 trivial. 0 not checked.
[2024-11-28 05:13:54,592 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2024-11-28 05:14:32,583 INFO  L134       CoverageAnalysis]: Checked inductivity of 1009620 backedges. 2808 proven. 14064 refuted. 0 times theorem prover too weak. 992748 trivial. 0 not checked.
[2024-11-28 05:14:32,584 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1711704708] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-28 05:14:32,584 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-28 05:14:32,586 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 17, 17] total 57
[2024-11-28 05:14:32,587 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989521896]
[2024-11-28 05:14:32,587 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-28 05:14:32,611 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 57 states
[2024-11-28 05:14:32,611 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-28 05:14:32,638 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants.
[2024-11-28 05:14:32,641 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=319, Invalid=2873, Unknown=0, NotChecked=0, Total=3192
[2024-11-28 05:14:32,659 INFO  L87              Difference]: Start difference. First operand 19973 states and 32498 transitions. Second operand  has 57 states, 37 states have (on average 88.37837837837837) internal successors, (3270), 42 states have internal predecessors, (3270), 54 states have call successors, (1988), 2 states have call predecessors, (1988), 3 states have return successors, (1990), 49 states have call predecessors, (1990), 54 states have call successors, (1990)