./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 6497de01
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e9e12f6-89c7-4ec7-b14f-89fc3cb8297a/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e9e12f6-89c7-4ec7-b14f-89fc3cb8297a/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e9e12f6-89c7-4ec7-b14f-89fc3cb8297a/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e9e12f6-89c7-4ec7-b14f-89fc3cb8297a/bin/uautomizer-verify-LYvppIcaGC/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_6e9e12f6-89c7-4ec7-b14f-89fc3cb8297a/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e9e12f6-89c7-4ec7-b14f-89fc3cb8297a/bin/uautomizer-verify-LYvppIcaGC --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-6497de0
[2024-11-24 00:29:23,470 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-24 00:29:23,560 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e9e12f6-89c7-4ec7-b14f-89fc3cb8297a/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-24 00:29:23,571 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-24 00:29:23,571 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-24 00:29:23,626 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-24 00:29:23,627 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-24 00:29:23,628 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-24 00:29:23,628 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-24 00:29:23,629 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-24 00:29:23,630 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-24 00:29:23,630 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-24 00:29:23,631 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-24 00:29:23,631 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-24 00:29:23,632 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-24 00:29:23,632 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-24 00:29:23,632 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-24 00:29:23,633 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-24 00:29:23,633 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-24 00:29:23,633 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-24 00:29:23,633 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-24 00:29:23,634 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-24 00:29:23,634 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-24 00:29:23,634 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-24 00:29:23,634 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-24 00:29:23,634 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-24 00:29:23,634 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-24 00:29:23,635 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-24 00:29:23,635 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-24 00:29:23,635 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-24 00:29:23,635 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-24 00:29:23,635 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-24 00:29:23,636 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 00:29:23,637 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-24 00:29:23,637 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-24 00:29:23,637 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-24 00:29:23,637 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-24 00:29:23,637 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 00:29:23,637 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-24 00:29:23,638 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-24 00:29:23,638 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2024-11-24 00:29:23,638 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-24 00:29:23,638 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-24 00:29:23,638 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-24 00:29:23,638 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-24 00:29:23,638 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-24 00:29:23,638 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-24 00:29:23,638 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-24 00:29:23,639 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_6e9e12f6-89c7-4ec7-b14f-89fc3cb8297a/bin/uautomizer-verify-LYvppIcaGC
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
[2024-11-24 00:29:24,027 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-24 00:29:24,037 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-24 00:29:24,041 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-24 00:29:24,043 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-24 00:29:24,043 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-24 00:29:24,045 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e9e12f6-89c7-4ec7-b14f-89fc3cb8297a/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/xcsp/aim-200-3-4-sat-2.c
[2024-11-24 00:29:27,687 INFO  L533              CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e9e12f6-89c7-4ec7-b14f-89fc3cb8297a/bin/uautomizer-verify-LYvppIcaGC/data/3ad752387/260f50f019fb4da58b35589db60783ab/FLAGb9f42f89c
[2024-11-24 00:29:28,136 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-24 00:29:28,137 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e9e12f6-89c7-4ec7-b14f-89fc3cb8297a/sv-benchmarks/c/xcsp/aim-200-3-4-sat-2.c
[2024-11-24 00:29:28,158 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e9e12f6-89c7-4ec7-b14f-89fc3cb8297a/bin/uautomizer-verify-LYvppIcaGC/data/3ad752387/260f50f019fb4da58b35589db60783ab/FLAGb9f42f89c
[2024-11-24 00:29:28,176 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e9e12f6-89c7-4ec7-b14f-89fc3cb8297a/bin/uautomizer-verify-LYvppIcaGC/data/3ad752387/260f50f019fb4da58b35589db60783ab
[2024-11-24 00:29:28,179 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-24 00:29:28,181 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-24 00:29:28,182 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-24 00:29:28,182 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-24 00:29:28,187 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-24 00:29:28,188 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:29:28" (1/1) ...
[2024-11-24 00:29:28,189 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e0c8c5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:28, skipping insertion in model container
[2024-11-24 00:29:28,190 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:29:28" (1/1) ...
[2024-11-24 00:29:28,262 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-24 00:29:28,966 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_6e9e12f6-89c7-4ec7-b14f-89fc3cb8297a/sv-benchmarks/c/xcsp/aim-200-3-4-sat-2.c[59014,59027]
[2024-11-24 00:29:29,042 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-24 00:29:29,063 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-24 00:29:29,445 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_6e9e12f6-89c7-4ec7-b14f-89fc3cb8297a/sv-benchmarks/c/xcsp/aim-200-3-4-sat-2.c[59014,59027]
[2024-11-24 00:29:29,474 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-24 00:29:29,491 INFO  L204         MainTranslator]: Completed translation
[2024-11-24 00:29:29,492 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:29 WrapperNode
[2024-11-24 00:29:29,492 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-24 00:29:29,493 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-24 00:29:29,494 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-24 00:29:29,494 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-24 00:29:29,503 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:29" (1/1) ...
[2024-11-24 00:29:29,621 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:29" (1/1) ...
[2024-11-24 00:29:30,518 INFO  L138                Inliner]: procedures = 13, calls = 1043, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 13260
[2024-11-24 00:29:30,519 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-24 00:29:30,519 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-24 00:29:30,520 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-24 00:29:30,520 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-24 00:29:30,529 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:29" (1/1) ...
[2024-11-24 00:29:30,529 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:29" (1/1) ...
[2024-11-24 00:29:30,720 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:29" (1/1) ...
[2024-11-24 00:29:30,927 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].
[2024-11-24 00:29:30,927 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:29" (1/1) ...
[2024-11-24 00:29:30,928 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:29" (1/1) ...
[2024-11-24 00:29:31,290 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:29" (1/1) ...
[2024-11-24 00:29:31,335 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:29" (1/1) ...
[2024-11-24 00:29:31,442 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:29" (1/1) ...
[2024-11-24 00:29:31,496 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:29" (1/1) ...
[2024-11-24 00:29:31,536 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:29" (1/1) ...
[2024-11-24 00:29:31,798 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-24 00:29:31,801 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-24 00:29:31,801 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-24 00:29:31,801 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-24 00:29:31,803 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:29" (1/1) ...
[2024-11-24 00:29:31,814 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-24 00:29:31,834 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e9e12f6-89c7-4ec7-b14f-89fc3cb8297a/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:29:31,853 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e9e12f6-89c7-4ec7-b14f-89fc3cb8297a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-24 00:29:31,866 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e9e12f6-89c7-4ec7-b14f-89fc3cb8297a/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-24 00:29:31,898 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-24 00:29:31,898 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-24 00:29:31,899 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-24 00:29:31,899 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-24 00:29:31,899 INFO  L130     BoogieDeclarations]: Found specification of procedure assume
[2024-11-24 00:29:31,900 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume
[2024-11-24 00:29:32,447 INFO  L234             CfgBuilder]: Building ICFG
[2024-11-24 00:29:32,450 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-24 00:30:08,045 INFO  L?                        ?]: Removed 2900 outVars from TransFormulas that were not future-live.
[2024-11-24 00:30:08,045 INFO  L283             CfgBuilder]: Performing block encoding
[2024-11-24 00:30:08,189 INFO  L307             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-24 00:30:08,190 INFO  L312             CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-24 00:30:08,190 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:30:08 BoogieIcfgContainer
[2024-11-24 00:30:08,190 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-24 00:30:08,196 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-24 00:30:08,196 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-24 00:30:08,205 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-24 00:30:08,205 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:29:28" (1/3) ...
[2024-11-24 00:30:08,206 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50b86755 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:30:08, skipping insertion in model container
[2024-11-24 00:30:08,206 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:29:29" (2/3) ...
[2024-11-24 00:30:08,207 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50b86755 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:30:08, skipping insertion in model container
[2024-11-24 00:30:08,207 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:30:08" (3/3) ...
[2024-11-24 00:30:08,208 INFO  L128   eAbstractionObserver]: Analyzing ICFG aim-200-3-4-sat-2.c
[2024-11-24 00:30:08,231 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-24 00:30:08,234 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.
[2024-11-24 00:30:08,508 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-24 00:30:08,527 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;@6e9858a9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-24 00:30:08,527 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-24 00:30:08,556 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)
[2024-11-24 00:30:09,060 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7421
[2024-11-24 00:30:09,060 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-24 00:30:09,064 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]
[2024-11-24 00:30:09,065 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:30:09,074 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:30:09,078 INFO  L85        PathProgramCache]: Analyzing trace with hash -638829907, now seen corresponding path program 1 times
[2024-11-24 00:30:09,088 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:30:09,088 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952331992]
[2024-11-24 00:30:09,091 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:30:09,092 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:30:09,758 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:30:25,071 INFO  L134       CoverageAnalysis]: Checked inductivity of 2144520 backedges. 0 proven. 2070 refuted. 0 times theorem prover too weak. 2142450 trivial. 0 not checked.
[2024-11-24 00:30:25,073 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:30:25,077 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952331992]
[2024-11-24 00:30:25,078 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952331992] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:30:25,078 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [188010876]
[2024-11-24 00:30:25,081 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:30:25,081 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:30:25,082 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e9e12f6-89c7-4ec7-b14f-89fc3cb8297a/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:30:25,086 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e9e12f6-89c7-4ec7-b14f-89fc3cb8297a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:30:25,087 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e9e12f6-89c7-4ec7-b14f-89fc3cb8297a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-24 00:30:29,135 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:30:29,189 INFO  L256         TraceCheckSpWp]: Trace formula consists of 14589 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-24 00:30:29,344 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:30:30,107 INFO  L134       CoverageAnalysis]: Checked inductivity of 2144520 backedges. 2070 proven. 0 refuted. 0 times theorem prover too weak. 2142450 trivial. 0 not checked.
[2024-11-24 00:30:30,107 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-24 00:30:30,107 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [188010876] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-24 00:30:30,107 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-24 00:30:30,110 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-24 00:30:30,112 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986007539]
[2024-11-24 00:30:30,113 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-24 00:30:30,135 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-24 00:30:30,135 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:30:30,173 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-24 00:30:30,174 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-24 00:30:30,192 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)
[2024-11-24 00:30:30,737 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:30:30,737 INFO  L93              Difference]: Finished difference Result 12166 states and 20876 transitions.
[2024-11-24 00:30:30,739 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-24 00:30:30,744 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
[2024-11-24 00:30:30,748 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:30:30,813 INFO  L225             Difference]: With dead ends: 12166
[2024-11-24 00:30:30,813 INFO  L226             Difference]: Without dead ends: 6083
[2024-11-24 00:30:30,841 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
[2024-11-24 00:30:30,844 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, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-24 00:30:30,845 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9919 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-24 00:30:30,875 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6083 states.
[2024-11-24 00:30:32,227 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6083 to 6083.
[2024-11-24 00:30:32,250 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)
[2024-11-24 00:30:32,301 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6083 states to 6083 states and 9919 transitions.
[2024-11-24 00:30:32,315 INFO  L78                 Accepts]: Start accepts. Automaton has 6083 states and 9919 transitions. Word has length 7420
[2024-11-24 00:30:32,318 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:30:32,319 INFO  L471      AbstractCegarLoop]: Abstraction has 6083 states and 9919 transitions.
[2024-11-24 00:30:32,328 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)
[2024-11-24 00:30:32,328 INFO  L276                IsEmpty]: Start isEmpty. Operand 6083 states and 9919 transitions.
[2024-11-24 00:30:32,861 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7421
[2024-11-24 00:30:32,861 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-24 00:30:32,865 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]
[2024-11-24 00:30:32,890 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e9e12f6-89c7-4ec7-b14f-89fc3cb8297a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2024-11-24 00:30:33,067 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e9e12f6-89c7-4ec7-b14f-89fc3cb8297a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2024-11-24 00:30:33,067 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:30:33,070 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:30:33,073 INFO  L85        PathProgramCache]: Analyzing trace with hash -1572588319, now seen corresponding path program 1 times
[2024-11-24 00:30:33,073 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:30:33,073 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560213279]
[2024-11-24 00:30:33,074 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:30:33,074 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:30:40,305 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:34:03,761 INFO  L134       CoverageAnalysis]: Checked inductivity of 2144520 backedges. 5484 proven. 25296 refuted. 0 times theorem prover too weak. 2113740 trivial. 0 not checked.
[2024-11-24 00:34:03,762 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:34:03,762 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560213279]
[2024-11-24 00:34:03,764 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560213279] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:34:03,764 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1373678143]
[2024-11-24 00:34:03,770 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:34:03,771 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:34:03,771 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e9e12f6-89c7-4ec7-b14f-89fc3cb8297a/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:34:03,776 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e9e12f6-89c7-4ec7-b14f-89fc3cb8297a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:34:03,780 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e9e12f6-89c7-4ec7-b14f-89fc3cb8297a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-24 00:34:08,564 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:34:08,654 INFO  L256         TraceCheckSpWp]: Trace formula consists of 14589 conjuncts, 45 conjuncts are in the unsatisfiable core
[2024-11-24 00:34:08,819 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:35:24,258 INFO  L134       CoverageAnalysis]: Checked inductivity of 2144520 backedges. 348456 proven. 18012 refuted. 0 times theorem prover too weak. 1778052 trivial. 0 not checked.
[2024-11-24 00:35:24,259 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:36:35,202 INFO  L134       CoverageAnalysis]: Checked inductivity of 2144520 backedges. 4476 proven. 20196 refuted. 0 times theorem prover too weak. 2119848 trivial. 0 not checked.
[2024-11-24 00:36:35,202 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1373678143] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 00:36:35,203 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 00:36:35,208 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 16, 16] total 44
[2024-11-24 00:36:35,209 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293338451]
[2024-11-24 00:36:35,210 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:36:35,252 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 44 states
[2024-11-24 00:36:35,253 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:36:35,304 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants.
[2024-11-24 00:36:35,306 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=1616, Unknown=0, NotChecked=0, Total=1892
[2024-11-24 00:36:35,324 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)
[2024-11-24 00:38:49,317 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-24 00:38:49,317 INFO  L93              Difference]: Finished difference Result 100614 states and 163913 transitions.
[2024-11-24 00:38:49,318 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. 
[2024-11-24 00:38:49,330 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
[2024-11-24 00:38:49,368 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-24 00:38:49,928 INFO  L225             Difference]: With dead ends: 100614
[2024-11-24 00:38:49,928 INFO  L226             Difference]: Without dead ends: 95558
[2024-11-24 00:38:49,972 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 14983 GetRequests, 14837 SyntacticMatches, 9 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5159 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=5687, Invalid=13495, Unknown=0, NotChecked=0, Total=19182
[2024-11-24 00:38:49,975 INFO  L435           NwaCegarLoop]: 32701 mSDtfsCounter, 376857 mSDsluCounter, 339853 mSDsCounter, 0 mSdLazyCounter, 56202 mSolverCounterSat, 27911 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 82.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376884 SdHoareTripleChecker+Valid, 372554 SdHoareTripleChecker+Invalid, 84113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.5s SdHoareTripleChecker+Time, 27911 IncrementalHoareTripleChecker+Valid, 56202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 91.7s IncrementalHoareTripleChecker+Time
[2024-11-24 00:38:49,982 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [376884 Valid, 372554 Invalid, 84113 Unknown, 0 Unchecked, 1.5s Time], IncrementalHoareTripleChecker [27911 Valid, 56202 Invalid, 0 Unknown, 0 Unchecked, 91.7s Time]
[2024-11-24 00:38:50,099 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 95558 states.
[2024-11-24 00:39:06,093 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 95558 to 81230.
[2024-11-24 00:39:06,225 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)
[2024-11-24 00:39:06,446 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 81230 states to 81230 states and 132149 transitions.
[2024-11-24 00:39:06,493 INFO  L78                 Accepts]: Start accepts. Automaton has 81230 states and 132149 transitions. Word has length 7420
[2024-11-24 00:39:06,513 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-24 00:39:06,513 INFO  L471      AbstractCegarLoop]: Abstraction has 81230 states and 132149 transitions.
[2024-11-24 00:39:06,516 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)
[2024-11-24 00:39:06,517 INFO  L276                IsEmpty]: Start isEmpty. Operand 81230 states and 132149 transitions.
[2024-11-24 00:39:08,243 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7423
[2024-11-24 00:39:08,244 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-24 00:39:08,249 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]
[2024-11-24 00:39:08,286 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e9e12f6-89c7-4ec7-b14f-89fc3cb8297a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-24 00:39:08,454 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e9e12f6-89c7-4ec7-b14f-89fc3cb8297a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:39:08,455 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-24 00:39:08,458 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-24 00:39:08,464 INFO  L85        PathProgramCache]: Analyzing trace with hash -882363843, now seen corresponding path program 1 times
[2024-11-24 00:39:08,464 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-24 00:39:08,464 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495879673]
[2024-11-24 00:39:08,465 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:39:08,465 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-24 00:39:13,177 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:39:54,324 INFO  L134       CoverageAnalysis]: Checked inductivity of 2144520 backedges. 972 proven. 5232 refuted. 0 times theorem prover too weak. 2138316 trivial. 0 not checked.
[2024-11-24 00:39:54,324 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-24 00:39:54,325 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495879673]
[2024-11-24 00:39:54,325 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495879673] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-24 00:39:54,325 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [101540515]
[2024-11-24 00:39:54,327 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-24 00:39:54,327 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-24 00:39:54,327 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e9e12f6-89c7-4ec7-b14f-89fc3cb8297a/bin/uautomizer-verify-LYvppIcaGC/z3
[2024-11-24 00:39:54,333 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e9e12f6-89c7-4ec7-b14f-89fc3cb8297a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-24 00:39:54,335 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e9e12f6-89c7-4ec7-b14f-89fc3cb8297a/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-24 00:39:57,110 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-24 00:39:57,163 INFO  L256         TraceCheckSpWp]: Trace formula consists of 14595 conjuncts, 24 conjuncts are in the unsatisfiable core
[2024-11-24 00:39:57,242 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-11-24 00:40:12,681 INFO  L134       CoverageAnalysis]: Checked inductivity of 2144520 backedges. 39324 proven. 9924 refuted. 0 times theorem prover too weak. 2095272 trivial. 0 not checked.
[2024-11-24 00:40:12,681 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2024-11-24 00:40:45,297 INFO  L134       CoverageAnalysis]: Checked inductivity of 2144520 backedges. 2352 proven. 10032 refuted. 0 times theorem prover too weak. 2132136 trivial. 0 not checked.
[2024-11-24 00:40:45,297 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [101540515] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-24 00:40:45,297 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-24 00:40:45,299 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11, 11] total 18
[2024-11-24 00:40:45,299 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853483162]
[2024-11-24 00:40:45,299 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-24 00:40:45,310 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 18 states
[2024-11-24 00:40:45,310 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-24 00:40:45,320 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2024-11-24 00:40:45,321 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306
[2024-11-24 00:40:45,324 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)