./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/xcsp/aim-200-3-4-sat-2.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_334607c2-9daf-4720-96a9-fe44a51cbc0d/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334607c2-9daf-4720-96a9-fe44a51cbc0d/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334607c2-9daf-4720-96a9-fe44a51cbc0d/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334607c2-9daf-4720-96a9-fe44a51cbc0d/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/xcsp/aim-200-3-4-sat-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334607c2-9daf-4720-96a9-fe44a51cbc0d/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334607c2-9daf-4720-96a9-fe44a51cbc0d/bin/uautomizer-verify-84ZbGMXZE1 --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 6c07e861b3e354f14684008a943ed22651d6c1651a7540e2374723db9ecfaa17
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-02 12:20:18,724 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-12-02 12:20:18,782 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334607c2-9daf-4720-96a9-fe44a51cbc0d/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-12-02 12:20:18,787 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-12-02 12:20:18,787 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-02 12:20:18,810 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-02 12:20:18,811 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-02 12:20:18,811 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-02 12:20:18,811 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-02 12:20:18,812 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-12-02 12:20:18,812 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-02 12:20:18,812 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-02 12:20:18,812 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-02 12:20:18,812 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-12-02 12:20:18,812 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-12-02 12:20:18,813 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-02 12:20:18,813 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-12-02 12:20:18,813 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-12-02 12:20:18,813 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-12-02 12:20:18,813 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-12-02 12:20:18,813 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-12-02 12:20:18,813 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-12-02 12:20:18,813 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-02 12:20:18,813 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-12-02 12:20:18,814 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-12-02 12:20:18,814 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-12-02 12:20:18,814 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-02 12:20:18,814 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-12-02 12:20:18,814 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-02 12:20:18,814 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-12-02 12:20:18,814 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 12:20:18,814 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-12-02 12:20:18,815 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 12:20:18,815 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-02 12:20:18,815 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-12-02 12:20:18,815 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 12:20:18,815 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-12-02 12:20:18,815 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 12:20:18,815 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-02 12:20:18,815 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-12-02 12:20:18,815 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2024-12-02 12:20:18,815 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-12-02 12:20:18,816 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-12-02 12:20:18,816 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-12-02 12:20:18,816 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-02 12:20:18,816 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-02 12:20:18,816 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-12-02 12:20:18,816 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-02 12:20:18,816 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_334607c2-9daf-4720-96a9-fe44a51cbc0d/bin/uautomizer-verify-84ZbGMXZE1
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 -> 6c07e861b3e354f14684008a943ed22651d6c1651a7540e2374723db9ecfaa17
[2024-12-02 12:20:19,045 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-02 12:20:19,053 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-02 12:20:19,056 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-02 12:20:19,057 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-12-02 12:20:19,057 INFO  L274        PluginConnector]: CDTParser initialized
[2024-12-02 12:20:19,058 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334607c2-9daf-4720-96a9-fe44a51cbc0d/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/xcsp/aim-200-3-4-sat-2.c
[2024-12-02 12:20:21,741 INFO  L533              CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334607c2-9daf-4720-96a9-fe44a51cbc0d/bin/uautomizer-verify-84ZbGMXZE1/data/b6daaf60e/a198d3c60b834657b0b27734bc81ba06/FLAG97fe858b5
[2024-12-02 12:20:22,039 INFO  L384              CDTParser]: Found 1 translation units.
[2024-12-02 12:20:22,040 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334607c2-9daf-4720-96a9-fe44a51cbc0d/sv-benchmarks/c/xcsp/aim-200-3-4-sat-2.c
[2024-12-02 12:20:22,053 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334607c2-9daf-4720-96a9-fe44a51cbc0d/bin/uautomizer-verify-84ZbGMXZE1/data/b6daaf60e/a198d3c60b834657b0b27734bc81ba06/FLAG97fe858b5
[2024-12-02 12:20:22,282 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334607c2-9daf-4720-96a9-fe44a51cbc0d/bin/uautomizer-verify-84ZbGMXZE1/data/b6daaf60e/a198d3c60b834657b0b27734bc81ba06
[2024-12-02 12:20:22,284 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-02 12:20:22,285 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-02 12:20:22,286 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-02 12:20:22,286 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-02 12:20:22,289 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-02 12:20:22,290 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:20:22" (1/1) ...
[2024-12-02 12:20:22,290 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1856cb34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:20:22, skipping insertion in model container
[2024-12-02 12:20:22,291 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:20:22" (1/1) ...
[2024-12-02 12:20:22,324 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-12-02 12:20:22,706 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_334607c2-9daf-4720-96a9-fe44a51cbc0d/sv-benchmarks/c/xcsp/aim-200-3-4-sat-2.c[59014,59027]
[2024-12-02 12:20:22,729 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-12-02 12:20:22,739 INFO  L200         MainTranslator]: Completed pre-run
[2024-12-02 12:20:22,890 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_334607c2-9daf-4720-96a9-fe44a51cbc0d/sv-benchmarks/c/xcsp/aim-200-3-4-sat-2.c[59014,59027]
[2024-12-02 12:20:22,914 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-12-02 12:20:22,927 INFO  L204         MainTranslator]: Completed translation
[2024-12-02 12:20:22,927 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:20:22 WrapperNode
[2024-12-02 12:20:22,927 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-02 12:20:22,928 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-02 12:20:22,928 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-02 12:20:22,928 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-02 12:20:22,935 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:20:22" (1/1) ...
[2024-12-02 12:20:23,024 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:20:22" (1/1) ...
[2024-12-02 12:20:23,560 INFO  L138                Inliner]: procedures = 13, calls = 1043, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 13260
[2024-12-02 12:20:23,561 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-02 12:20:23,561 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-02 12:20:23,561 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-02 12:20:23,561 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-12-02 12:20:23,610 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:20:22" (1/1) ...
[2024-12-02 12:20:23,610 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:20:22" (1/1) ...
[2024-12-02 12:20:23,691 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:20:22" (1/1) ...
[2024-12-02 12:20:23,792 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].
[2024-12-02 12:20:23,792 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:20:22" (1/1) ...
[2024-12-02 12:20:23,792 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:20:22" (1/1) ...
[2024-12-02 12:20:24,017 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:20:22" (1/1) ...
[2024-12-02 12:20:24,034 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:20:22" (1/1) ...
[2024-12-02 12:20:24,138 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:20:22" (1/1) ...
[2024-12-02 12:20:24,162 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:20:22" (1/1) ...
[2024-12-02 12:20:24,184 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:20:22" (1/1) ...
[2024-12-02 12:20:24,267 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-02 12:20:24,268 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-02 12:20:24,268 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-12-02 12:20:24,268 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-12-02 12:20:24,269 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:20:22" (1/1) ...
[2024-12-02 12:20:24,274 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 12:20:24,287 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334607c2-9daf-4720-96a9-fe44a51cbc0d/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:20:24,299 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334607c2-9daf-4720-96a9-fe44a51cbc0d/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-12-02 12:20:24,301 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334607c2-9daf-4720-96a9-fe44a51cbc0d/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-12-02 12:20:24,325 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-12-02 12:20:24,325 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-02 12:20:24,325 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-02 12:20:24,325 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-12-02 12:20:24,325 INFO  L130     BoogieDeclarations]: Found specification of procedure assume
[2024-12-02 12:20:24,325 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume
[2024-12-02 12:20:24,723 INFO  L234             CfgBuilder]: Building ICFG
[2024-12-02 12:20:24,725 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-02 12:20:52,200 INFO  L?                        ?]: Removed 2900 outVars from TransFormulas that were not future-live.
[2024-12-02 12:20:52,201 INFO  L283             CfgBuilder]: Performing block encoding
[2024-12-02 12:20:52,263 INFO  L307             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-02 12:20:52,263 INFO  L312             CfgBuilder]: Removed 0 assume(true) statements.
[2024-12-02 12:20:52,263 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:20:52 BoogieIcfgContainer
[2024-12-02 12:20:52,263 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-02 12:20:52,265 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-12-02 12:20:52,265 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-12-02 12:20:52,268 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-12-02 12:20:52,268 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:20:22" (1/3) ...
[2024-12-02 12:20:52,269 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ee85f6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:20:52, skipping insertion in model container
[2024-12-02 12:20:52,269 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:20:22" (2/3) ...
[2024-12-02 12:20:52,269 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ee85f6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:20:52, skipping insertion in model container
[2024-12-02 12:20:52,269 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:20:52" (3/3) ...
[2024-12-02 12:20:52,270 INFO  L128   eAbstractionObserver]: Analyzing ICFG aim-200-3-4-sat-2.c
[2024-12-02 12:20:52,281 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-12-02 12:20:52,282 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG aim-200-3-4-sat-2.c that has 2 procedures, 6086 locations, 1 initial locations, 0 loop locations, and 1 error locations.
[2024-12-02 12:20:52,436 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 12:20:52,447 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;@7b7c305b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 12:20:52,447 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-12-02 12:20:52,462 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 6086 states, 5047 states have (on average 1.5555775708341588) internal successors, (7851), 5048 states have internal predecessors, (7851), 1036 states have call successors, (1036), 1 states have call predecessors, (1036), 1 states have return successors, (1036), 1036 states have call predecessors, (1036), 1036 states have call successors, (1036)
[2024-12-02 12:20:52,996 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7421
[2024-12-02 12:20:52,997 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 12:20:53,000 INFO  L218           NwaCegarLoop]: trace histogram [1036, 1036, 1036, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:20:53,001 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 12:20:53,007 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:20:53,009 INFO  L85        PathProgramCache]: Analyzing trace with hash -638829907, now seen corresponding path program 1 times
[2024-12-02 12:20:53,016 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:20:53,017 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210616213]
[2024-12-02 12:20:53,019 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:20:53,020 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:20:53,432 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:21:01,998 INFO  L134       CoverageAnalysis]: Checked inductivity of 2144520 backedges. 0 proven. 2070 refuted. 0 times theorem prover too weak. 2142450 trivial. 0 not checked.
[2024-12-02 12:21:01,998 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:21:01,999 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210616213]
[2024-12-02 12:21:01,999 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210616213] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 12:21:01,999 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [808058726]
[2024-12-02 12:21:02,001 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:21:02,001 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:21:02,002 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334607c2-9daf-4720-96a9-fe44a51cbc0d/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:21:02,004 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334607c2-9daf-4720-96a9-fe44a51cbc0d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 12:21:02,004 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334607c2-9daf-4720-96a9-fe44a51cbc0d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-12-02 12:21:04,405 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:21:04,451 INFO  L256         TraceCheckSpWp]: Trace formula consists of 14589 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-12-02 12:21:04,544 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 12:21:04,834 INFO  L134       CoverageAnalysis]: Checked inductivity of 2144520 backedges. 2070 proven. 0 refuted. 0 times theorem prover too weak. 2142450 trivial. 0 not checked.
[2024-12-02 12:21:04,834 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 12:21:04,834 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [808058726] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 12:21:04,834 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-02 12:21:04,835 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-12-02 12:21:04,837 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248940383]
[2024-12-02 12:21:04,837 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 12:21:04,846 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-12-02 12:21:04,847 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:21:04,866 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-12-02 12:21:04,866 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-12-02 12:21:04,877 INFO  L87              Difference]: Start difference. First operand  has 6086 states, 5047 states have (on average 1.5555775708341588) internal successors, (7851), 5048 states have internal predecessors, (7851), 1036 states have call successors, (1036), 1 states have call predecessors, (1036), 1 states have return successors, (1036), 1036 states have call predecessors, (1036), 1036 states have call successors, (1036) Second operand  has 2 states, 2 states have (on average 1122.5) internal successors, (2245), 2 states have internal predecessors, (2245), 2 states have call successors, (1036), 2 states have call predecessors, (1036), 1 states have return successors, (1036), 1 states have call predecessors, (1036), 2 states have call successors, (1036)
[2024-12-02 12:21:05,230 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:21:05,230 INFO  L93              Difference]: Finished difference Result 12166 states and 20876 transitions.
[2024-12-02 12:21:05,231 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-12-02 12:21:05,235 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 1122.5) internal successors, (2245), 2 states have internal predecessors, (2245), 2 states have call successors, (1036), 2 states have call predecessors, (1036), 1 states have return successors, (1036), 1 states have call predecessors, (1036), 2 states have call successors, (1036) Word has length 7420
[2024-12-02 12:21:05,235 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:21:05,275 INFO  L225             Difference]: With dead ends: 12166
[2024-12-02 12:21:05,275 INFO  L226             Difference]: Without dead ends: 6083
[2024-12-02 12:21:05,298 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 7421 GetRequests, 7421 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-12-02 12:21:05,301 INFO  L435           NwaCegarLoop]: 9919 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, 9919 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
[2024-12-02 12:21:05,301 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9919 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 12:21:05,328 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6083 states.
[2024-12-02 12:21:06,268 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6083 to 6083.
[2024-12-02 12:21:06,282 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6083 states, 5045 states have (on average 1.5554013875123884) internal successors, (7847), 5045 states have internal predecessors, (7847), 1036 states have call successors, (1036), 1 states have call predecessors, (1036), 1 states have return successors, (1036), 1036 states have call predecessors, (1036), 1036 states have call successors, (1036)
[2024-12-02 12:21:06,317 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6083 states to 6083 states and 9919 transitions.
[2024-12-02 12:21:06,324 INFO  L78                 Accepts]: Start accepts. Automaton has 6083 states and 9919 transitions. Word has length 7420
[2024-12-02 12:21:06,326 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:21:06,326 INFO  L471      AbstractCegarLoop]: Abstraction has 6083 states and 9919 transitions.
[2024-12-02 12:21:06,328 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 1122.5) internal successors, (2245), 2 states have internal predecessors, (2245), 2 states have call successors, (1036), 2 states have call predecessors, (1036), 1 states have return successors, (1036), 1 states have call predecessors, (1036), 2 states have call successors, (1036)
[2024-12-02 12:21:06,328 INFO  L276                IsEmpty]: Start isEmpty. Operand 6083 states and 9919 transitions.
[2024-12-02 12:21:06,651 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7421
[2024-12-02 12:21:06,651 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 12:21:06,653 INFO  L218           NwaCegarLoop]: trace histogram [1036, 1036, 1036, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:21:06,676 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334607c2-9daf-4720-96a9-fe44a51cbc0d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-12-02 12:21:06,854 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334607c2-9daf-4720-96a9-fe44a51cbc0d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2024-12-02 12:21:06,854 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 12:21:06,856 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:21:06,858 INFO  L85        PathProgramCache]: Analyzing trace with hash -1572588319, now seen corresponding path program 1 times
[2024-12-02 12:21:06,858 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:21:06,858 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674697548]
[2024-12-02 12:21:06,859 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:21:06,859 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:21:11,802 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:23:51,065 INFO  L134       CoverageAnalysis]: Checked inductivity of 2144520 backedges. 5484 proven. 25296 refuted. 0 times theorem prover too weak. 2113740 trivial. 0 not checked.
[2024-12-02 12:23:51,065 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:23:51,066 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674697548]
[2024-12-02 12:23:51,066 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674697548] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 12:23:51,066 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [802908435]
[2024-12-02 12:23:51,069 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:23:51,069 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:23:51,070 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334607c2-9daf-4720-96a9-fe44a51cbc0d/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:23:51,074 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334607c2-9daf-4720-96a9-fe44a51cbc0d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 12:23:51,075 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334607c2-9daf-4720-96a9-fe44a51cbc0d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-12-02 12:23:54,622 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:23:54,701 INFO  L256         TraceCheckSpWp]: Trace formula consists of 14589 conjuncts, 45 conjuncts are in the unsatisfiable core
[2024-12-02 12:23:54,936 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 12:24:55,264 INFO  L134       CoverageAnalysis]: Checked inductivity of 2144520 backedges. 348456 proven. 18012 refuted. 0 times theorem prover too weak. 1778052 trivial. 0 not checked.
[2024-12-02 12:24:55,264 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 12:25:57,145 INFO  L134       CoverageAnalysis]: Checked inductivity of 2144520 backedges. 4476 proven. 20196 refuted. 0 times theorem prover too weak. 2119848 trivial. 0 not checked.
[2024-12-02 12:25:57,145 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [802908435] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 12:25:57,145 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 12:25:57,147 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 16, 16] total 44
[2024-12-02 12:25:57,147 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578034668]
[2024-12-02 12:25:57,148 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 12:25:57,174 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 44 states
[2024-12-02 12:25:57,174 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:25:57,214 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants.
[2024-12-02 12:25:57,216 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=1616, Unknown=0, NotChecked=0, Total=1892
[2024-12-02 12:25:57,227 INFO  L87              Difference]: Start difference. First operand 6083 states and 9919 transitions. Second operand  has 44 states, 29 states have (on average 215.0) internal successors, (6235), 32 states have internal predecessors, (6235), 37 states have call successors, (2860), 2 states have call predecessors, (2860), 3 states have return successors, (2862), 34 states have call predecessors, (2862), 37 states have call successors, (2862)
[2024-12-02 12:27:45,972 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:27:45,972 INFO  L93              Difference]: Finished difference Result 100614 states and 163913 transitions.
[2024-12-02 12:27:45,972 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. 
[2024-12-02 12:27:45,977 INFO  L78                 Accepts]: Start accepts. Automaton has  has 44 states, 29 states have (on average 215.0) internal successors, (6235), 32 states have internal predecessors, (6235), 37 states have call successors, (2860), 2 states have call predecessors, (2860), 3 states have return successors, (2862), 34 states have call predecessors, (2862), 37 states have call successors, (2862) Word has length 7420
[2024-12-02 12:27:45,990 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:27:46,209 INFO  L225             Difference]: With dead ends: 100614
[2024-12-02 12:27:46,209 INFO  L226             Difference]: Without dead ends: 95558
[2024-12-02 12:27:46,261 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 14983 GetRequests, 14837 SyntacticMatches, 9 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5159 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=5687, Invalid=13495, Unknown=0, NotChecked=0, Total=19182
[2024-12-02 12:27:46,263 INFO  L435           NwaCegarLoop]: 32701 mSDtfsCounter, 376857 mSDsluCounter, 339853 mSDsCounter, 0 mSdLazyCounter, 56202 mSolverCounterSat, 27911 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 65.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376884 SdHoareTripleChecker+Valid, 372554 SdHoareTripleChecker+Invalid, 84113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.4s SdHoareTripleChecker+Time, 27911 IncrementalHoareTripleChecker+Valid, 56202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 74.1s IncrementalHoareTripleChecker+Time
[2024-12-02 12:27:46,263 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [376884 Valid, 372554 Invalid, 84113 Unknown, 0 Unchecked, 1.4s Time], IncrementalHoareTripleChecker [27911 Valid, 56202 Invalid, 0 Unknown, 0 Unchecked, 74.1s Time]
[2024-12-02 12:27:46,346 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 95558 states.
[2024-12-02 12:27:57,249 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 95558 to 81230.
[2024-12-02 12:27:57,352 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 81230 states, 71303 states have (on average 1.5749547704865152) internal successors, (112299), 71303 states have internal predecessors, (112299), 9925 states have call successors, (9925), 1 states have call predecessors, (9925), 1 states have return successors, (9925), 9925 states have call predecessors, (9925), 9925 states have call successors, (9925)
[2024-12-02 12:27:57,605 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 81230 states to 81230 states and 132149 transitions.
[2024-12-02 12:27:57,650 INFO  L78                 Accepts]: Start accepts. Automaton has 81230 states and 132149 transitions. Word has length 7420
[2024-12-02 12:27:57,664 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:27:57,664 INFO  L471      AbstractCegarLoop]: Abstraction has 81230 states and 132149 transitions.
[2024-12-02 12:27:57,667 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 44 states, 29 states have (on average 215.0) internal successors, (6235), 32 states have internal predecessors, (6235), 37 states have call successors, (2860), 2 states have call predecessors, (2860), 3 states have return successors, (2862), 34 states have call predecessors, (2862), 37 states have call successors, (2862)
[2024-12-02 12:27:57,668 INFO  L276                IsEmpty]: Start isEmpty. Operand 81230 states and 132149 transitions.
[2024-12-02 12:27:58,666 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7423
[2024-12-02 12:27:58,666 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 12:27:58,671 INFO  L218           NwaCegarLoop]: trace histogram [1036, 1036, 1036, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 12:27:58,693 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334607c2-9daf-4720-96a9-fe44a51cbc0d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-12-02 12:27:58,871 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334607c2-9daf-4720-96a9-fe44a51cbc0d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:27:58,872 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 12:27:58,875 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:27:58,877 INFO  L85        PathProgramCache]: Analyzing trace with hash -882363843, now seen corresponding path program 1 times
[2024-12-02 12:27:58,877 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:27:58,878 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815244923]
[2024-12-02 12:27:58,879 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:27:58,879 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:28:02,492 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:28:34,994 INFO  L134       CoverageAnalysis]: Checked inductivity of 2144520 backedges. 972 proven. 5232 refuted. 0 times theorem prover too weak. 2138316 trivial. 0 not checked.
[2024-12-02 12:28:34,994 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:28:34,994 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815244923]
[2024-12-02 12:28:34,995 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815244923] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 12:28:34,995 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [550995882]
[2024-12-02 12:28:34,996 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:28:34,996 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:28:34,996 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334607c2-9daf-4720-96a9-fe44a51cbc0d/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:28:34,998 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334607c2-9daf-4720-96a9-fe44a51cbc0d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 12:28:34,999 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334607c2-9daf-4720-96a9-fe44a51cbc0d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-12-02 12:28:36,953 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:28:37,000 INFO  L256         TraceCheckSpWp]: Trace formula consists of 14595 conjuncts, 24 conjuncts are in the unsatisfiable core
[2024-12-02 12:28:37,408 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 12:28:47,449 INFO  L134       CoverageAnalysis]: Checked inductivity of 2144520 backedges. 39324 proven. 9924 refuted. 0 times theorem prover too weak. 2095272 trivial. 0 not checked.
[2024-12-02 12:28:47,449 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 12:29:07,010 INFO  L134       CoverageAnalysis]: Checked inductivity of 2144520 backedges. 2352 proven. 10032 refuted. 0 times theorem prover too weak. 2132136 trivial. 0 not checked.
[2024-12-02 12:29:07,011 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [550995882] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 12:29:07,011 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 12:29:07,012 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11, 11] total 18
[2024-12-02 12:29:07,012 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711357833]
[2024-12-02 12:29:07,012 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 12:29:07,020 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 18 states
[2024-12-02 12:29:07,020 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 12:29:07,027 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2024-12-02 12:29:07,028 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306
[2024-12-02 12:29:07,030 INFO  L87              Difference]: Start difference. First operand 81230 states and 132149 transitions. Second operand  has 18 states, 14 states have (on average 353.85714285714283) internal successors, (4954), 14 states have internal predecessors, (4954), 13 states have call successors, (2261), 2 states have call predecessors, (2261), 3 states have return successors, (2263), 13 states have call predecessors, (2263), 13 states have call successors, (2263)
[2024-12-02 12:29:41,739 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 12:29:41,740 INFO  L93              Difference]: Finished difference Result 711617 states and 1158105 transitions.
[2024-12-02 12:29:41,740 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. 
[2024-12-02 12:29:41,742 INFO  L78                 Accepts]: Start accepts. Automaton has  has 18 states, 14 states have (on average 353.85714285714283) internal successors, (4954), 14 states have internal predecessors, (4954), 13 states have call successors, (2261), 2 states have call predecessors, (2261), 3 states have return successors, (2263), 13 states have call predecessors, (2263), 13 states have call successors, (2263) Word has length 7422
[2024-12-02 12:29:41,751 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 12:29:42,989 INFO  L225             Difference]: With dead ends: 711617
[2024-12-02 12:29:42,989 INFO  L226             Difference]: Without dead ends: 605395
[2024-12-02 12:29:43,167 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 14874 GetRequests, 14834 SyntacticMatches, 5 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=362, Invalid=970, Unknown=0, NotChecked=0, Total=1332
[2024-12-02 12:29:43,168 INFO  L435           NwaCegarLoop]: 23116 mSDtfsCounter, 140124 mSDsluCounter, 105477 mSDsCounter, 0 mSdLazyCounter, 18695 mSolverCounterSat, 9034 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140130 SdHoareTripleChecker+Valid, 128593 SdHoareTripleChecker+Invalid, 27729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 9034 IncrementalHoareTripleChecker+Valid, 18695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.9s IncrementalHoareTripleChecker+Time
[2024-12-02 12:29:43,168 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [140130 Valid, 128593 Invalid, 27729 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [9034 Valid, 18695 Invalid, 0 Unknown, 0 Unchecked, 14.9s Time]
[2024-12-02 12:29:43,373 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 605395 states.
[2024-12-02 12:30:50,159 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 605395 to 603573.
[2024-12-02 12:30:50,598 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 603573 states, 531700 states have (on average 1.5765826593943952) internal successors, (838269), 531700 states have internal predecessors, (838269), 71871 states have call successors, (71871), 1 states have call predecessors, (71871), 1 states have return successors, (71871), 71871 states have call predecessors, (71871), 71871 states have call successors, (71871)
[2024-12-02 12:30:53,253 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 603573 states to 603573 states and 982011 transitions.
[2024-12-02 12:30:53,440 INFO  L78                 Accepts]: Start accepts. Automaton has 603573 states and 982011 transitions. Word has length 7422
[2024-12-02 12:30:53,445 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 12:30:53,445 INFO  L471      AbstractCegarLoop]: Abstraction has 603573 states and 982011 transitions.
[2024-12-02 12:30:53,447 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 18 states, 14 states have (on average 353.85714285714283) internal successors, (4954), 14 states have internal predecessors, (4954), 13 states have call successors, (2261), 2 states have call predecessors, (2261), 3 states have return successors, (2263), 13 states have call predecessors, (2263), 13 states have call successors, (2263)
[2024-12-02 12:30:53,447 INFO  L276                IsEmpty]: Start isEmpty. Operand 603573 states and 982011 transitions.
[2024-12-02 12:30:55,044 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7423
[2024-12-02 12:30:55,044 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 12:30:55,046 INFO  L218           NwaCegarLoop]: trace histogram [1036, 1036, 1036, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2024-12-02 12:30:55,066 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334607c2-9daf-4720-96a9-fe44a51cbc0d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2024-12-02 12:30:55,247 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334607c2-9daf-4720-96a9-fe44a51cbc0d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:30:55,247 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 12:30:55,248 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 12:30:55,250 INFO  L85        PathProgramCache]: Analyzing trace with hash -544604803, now seen corresponding path program 1 times
[2024-12-02 12:30:55,250 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 12:30:55,250 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105226088]
[2024-12-02 12:30:55,251 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:30:55,251 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 12:30:57,765 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:32:00,082 INFO  L134       CoverageAnalysis]: Checked inductivity of 2144520 backedges. 1092 proven. 11292 refuted. 0 times theorem prover too weak. 2132136 trivial. 0 not checked.
[2024-12-02 12:32:00,083 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 12:32:00,083 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105226088]
[2024-12-02 12:32:00,083 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105226088] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 12:32:00,083 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [962819187]
[2024-12-02 12:32:00,084 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 12:32:00,084 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 12:32:00,084 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334607c2-9daf-4720-96a9-fe44a51cbc0d/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 12:32:00,086 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334607c2-9daf-4720-96a9-fe44a51cbc0d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 12:32:00,087 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_334607c2-9daf-4720-96a9-fe44a51cbc0d/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-12-02 12:32:02,193 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 12:32:02,245 INFO  L256         TraceCheckSpWp]: Trace formula consists of 14595 conjuncts, 35 conjuncts are in the unsatisfiable core
[2024-12-02 12:32:02,297 INFO  L279         TraceCheckSpWp]: Computing forward predicates...