./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_0e2a0369-52fe-4f6b-8994-83a98e939c10/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e2a0369-52fe-4f6b-8994-83a98e939c10/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e2a0369-52fe-4f6b-8994-83a98e939c10/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e2a0369-52fe-4f6b-8994-83a98e939c10/bin/uautomizer-verify-aQ6SnzHsRB/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_0e2a0369-52fe-4f6b-8994-83a98e939c10/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e2a0369-52fe-4f6b-8994-83a98e939c10/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6c07e861b3e354f14684008a943ed22651d6c1651a7540e2374723db9ecfaa17
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-11-27 19:50:51,523 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-27 19:50:51,623 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e2a0369-52fe-4f6b-8994-83a98e939c10/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-27 19:50:51,633 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-27 19:50:51,633 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-27 19:50:51,672 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-27 19:50:51,674 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-27 19:50:51,674 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-27 19:50:51,674 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-27 19:50:51,675 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-27 19:50:51,676 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-27 19:50:51,676 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-27 19:50:51,676 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-27 19:50:51,676 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-27 19:50:51,677 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-27 19:50:51,677 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-27 19:50:51,677 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-27 19:50:51,678 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-27 19:50:51,678 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-27 19:50:51,678 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-27 19:50:51,678 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-27 19:50:51,678 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-27 19:50:51,678 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-27 19:50:51,678 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-27 19:50:51,678 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-27 19:50:51,678 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-27 19:50:51,678 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-27 19:50:51,678 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-27 19:50:51,678 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-27 19:50:51,679 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-27 19:50:51,679 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-27 19:50:51,679 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-27 19:50:51,679 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-27 19:50:51,679 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-27 19:50:51,679 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-27 19:50:51,679 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-27 19:50:51,679 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-27 19:50:51,679 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-27 19:50:51,679 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-27 19:50:51,680 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-27 19:50:51,680 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2024-11-27 19:50:51,680 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-27 19:50:51,680 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-27 19:50:51,680 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-27 19:50:51,680 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-27 19:50:51,680 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-27 19:50:51,680 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-27 19:50:51,680 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-27 19:50:51,680 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_0e2a0369-52fe-4f6b-8994-83a98e939c10/bin/uautomizer-verify-aQ6SnzHsRB
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c07e861b3e354f14684008a943ed22651d6c1651a7540e2374723db9ecfaa17
[2024-11-27 19:50:51,969 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-27 19:50:51,977 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-27 19:50:51,980 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-27 19:50:51,981 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-27 19:50:51,982 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-27 19:50:51,983 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e2a0369-52fe-4f6b-8994-83a98e939c10/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/xcsp/aim-200-3-4-sat-2.c
[2024-11-27 19:50:55,035 INFO  L533              CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e2a0369-52fe-4f6b-8994-83a98e939c10/bin/uautomizer-verify-aQ6SnzHsRB/data/bef99d826/a74bedbc5e154ec4af6ab9c808ae96d8/FLAG1b5c4a62d
[2024-11-27 19:50:55,575 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-27 19:50:55,579 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e2a0369-52fe-4f6b-8994-83a98e939c10/sv-benchmarks/c/xcsp/aim-200-3-4-sat-2.c
[2024-11-27 19:50:55,605 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e2a0369-52fe-4f6b-8994-83a98e939c10/bin/uautomizer-verify-aQ6SnzHsRB/data/bef99d826/a74bedbc5e154ec4af6ab9c808ae96d8/FLAG1b5c4a62d
[2024-11-27 19:50:56,119 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e2a0369-52fe-4f6b-8994-83a98e939c10/bin/uautomizer-verify-aQ6SnzHsRB/data/bef99d826/a74bedbc5e154ec4af6ab9c808ae96d8
[2024-11-27 19:50:56,122 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-27 19:50:56,124 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-27 19:50:56,126 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-27 19:50:56,126 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-27 19:50:56,131 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-27 19:50:56,132 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:50:56" (1/1) ...
[2024-11-27 19:50:56,136 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30b60b98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:56, skipping insertion in model container
[2024-11-27 19:50:56,136 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:50:56" (1/1) ...
[2024-11-27 19:50:56,194 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-27 19:50:56,900 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_0e2a0369-52fe-4f6b-8994-83a98e939c10/sv-benchmarks/c/xcsp/aim-200-3-4-sat-2.c[59014,59027]
[2024-11-27 19:50:56,941 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-27 19:50:56,954 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-27 19:50:57,302 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_0e2a0369-52fe-4f6b-8994-83a98e939c10/sv-benchmarks/c/xcsp/aim-200-3-4-sat-2.c[59014,59027]
[2024-11-27 19:50:57,317 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-27 19:50:57,335 INFO  L204         MainTranslator]: Completed translation
[2024-11-27 19:50:57,336 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:57 WrapperNode
[2024-11-27 19:50:57,337 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-27 19:50:57,338 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-27 19:50:57,338 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-27 19:50:57,338 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-27 19:50:57,349 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:57" (1/1) ...
[2024-11-27 19:50:57,431 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:57" (1/1) ...
[2024-11-27 19:50:58,006 INFO  L138                Inliner]: procedures = 13, calls = 1043, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 13260
[2024-11-27 19:50:58,007 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-27 19:50:58,008 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-27 19:50:58,009 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-27 19:50:58,009 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-27 19:50:58,019 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:57" (1/1) ...
[2024-11-27 19:50:58,019 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:57" (1/1) ...
[2024-11-27 19:50:58,126 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:57" (1/1) ...
[2024-11-27 19:50:58,482 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].
[2024-11-27 19:50:58,486 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:57" (1/1) ...
[2024-11-27 19:50:58,486 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:57" (1/1) ...
[2024-11-27 19:50:58,910 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:57" (1/1) ...
[2024-11-27 19:50:58,931 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:57" (1/1) ...
[2024-11-27 19:50:59,077 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:57" (1/1) ...
[2024-11-27 19:50:59,120 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:57" (1/1) ...
[2024-11-27 19:50:59,164 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:57" (1/1) ...
[2024-11-27 19:50:59,289 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-27 19:50:59,291 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-27 19:50:59,292 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-27 19:50:59,292 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-27 19:50:59,293 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:57" (1/1) ...
[2024-11-27 19:50:59,299 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-27 19:50:59,314 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e2a0369-52fe-4f6b-8994-83a98e939c10/bin/uautomizer-verify-aQ6SnzHsRB/z3
[2024-11-27 19:50:59,329 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e2a0369-52fe-4f6b-8994-83a98e939c10/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-27 19:50:59,338 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e2a0369-52fe-4f6b-8994-83a98e939c10/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-27 19:50:59,365 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-27 19:50:59,365 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-27 19:50:59,366 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-27 19:50:59,366 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-27 19:50:59,366 INFO  L130     BoogieDeclarations]: Found specification of procedure assume
[2024-11-27 19:50:59,366 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume
[2024-11-27 19:50:59,815 INFO  L234             CfgBuilder]: Building ICFG
[2024-11-27 19:50:59,817 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-27 19:51:28,879 INFO  L?                        ?]: Removed 2900 outVars from TransFormulas that were not future-live.
[2024-11-27 19:51:28,879 INFO  L283             CfgBuilder]: Performing block encoding
[2024-11-27 19:51:28,994 INFO  L307             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-27 19:51:28,994 INFO  L312             CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-27 19:51:28,995 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:51:28 BoogieIcfgContainer
[2024-11-27 19:51:28,996 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-27 19:51:28,998 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-27 19:51:28,998 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-27 19:51:29,005 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-27 19:51:29,007 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 07:50:56" (1/3) ...
[2024-11-27 19:51:29,008 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8d91e1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:51:29, skipping insertion in model container
[2024-11-27 19:51:29,009 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:50:57" (2/3) ...
[2024-11-27 19:51:29,009 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8d91e1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:51:29, skipping insertion in model container
[2024-11-27 19:51:29,010 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:51:28" (3/3) ...
[2024-11-27 19:51:29,011 INFO  L128   eAbstractionObserver]: Analyzing ICFG aim-200-3-4-sat-2.c
[2024-11-27 19:51:29,028 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-27 19:51:29,030 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.
[2024-11-27 19:51:29,237 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-27 19:51:29,249 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;@23e2c425, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-27 19:51:29,249 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-27 19:51:29,271 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)
[2024-11-27 19:51:29,679 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7421
[2024-11-27 19:51:29,679 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-27 19:51:29,682 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]
[2024-11-27 19:51:29,683 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-27 19:51:29,691 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-27 19:51:29,694 INFO  L85        PathProgramCache]: Analyzing trace with hash -638829907, now seen corresponding path program 1 times
[2024-11-27 19:51:29,701 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-27 19:51:29,702 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059434841]
[2024-11-27 19:51:29,703 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-27 19:51:29,704 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-27 19:51:30,263 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-27 19:51:43,077 INFO  L134       CoverageAnalysis]: Checked inductivity of 2144520 backedges. 0 proven. 2070 refuted. 0 times theorem prover too weak. 2142450 trivial. 0 not checked.
[2024-11-27 19:51:43,078 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-27 19:51:43,078 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059434841]
[2024-11-27 19:51:43,079 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059434841] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-27 19:51:43,079 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [673854003]
[2024-11-27 19:51:43,081 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-27 19:51:43,081 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-27 19:51:43,081 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e2a0369-52fe-4f6b-8994-83a98e939c10/bin/uautomizer-verify-aQ6SnzHsRB/z3
[2024-11-27 19:51:43,083 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e2a0369-52fe-4f6b-8994-83a98e939c10/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-27 19:51:43,084 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e2a0369-52fe-4f6b-8994-83a98e939c10/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-27 19:51:46,071 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-27 19:51:46,116 INFO  L256         TraceCheckSpWp]: Trace formula consists of 14589 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-27 19:51:46,225 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-11-27 19:51:46,700 INFO  L134       CoverageAnalysis]: Checked inductivity of 2144520 backedges. 2070 proven. 0 refuted. 0 times theorem prover too weak. 2142450 trivial. 0 not checked.
[2024-11-27 19:51:46,700 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-27 19:51:46,700 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [673854003] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-27 19:51:46,700 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-27 19:51:46,702 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-27 19:51:46,704 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735806862]
[2024-11-27 19:51:46,705 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-27 19:51:46,724 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-27 19:51:46,724 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-27 19:51:46,752 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-27 19:51:46,752 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-27 19:51:46,768 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)
[2024-11-27 19:51:47,284 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-27 19:51:47,284 INFO  L93              Difference]: Finished difference Result 12166 states and 20876 transitions.
[2024-11-27 19:51:47,285 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-27 19:51:47,291 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
[2024-11-27 19:51:47,291 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-27 19:51:47,347 INFO  L225             Difference]: With dead ends: 12166
[2024-11-27 19:51:47,347 INFO  L226             Difference]: Without dead ends: 6083
[2024-11-27 19:51:47,379 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
[2024-11-27 19:51:47,382 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
[2024-11-27 19:51:47,385 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]
[2024-11-27 19:51:47,417 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6083 states.
[2024-11-27 19:51:48,393 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6083 to 6083.
[2024-11-27 19:51:48,406 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)
[2024-11-27 19:51:48,449 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6083 states to 6083 states and 9919 transitions.
[2024-11-27 19:51:48,460 INFO  L78                 Accepts]: Start accepts. Automaton has 6083 states and 9919 transitions. Word has length 7420
[2024-11-27 19:51:48,462 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-27 19:51:48,463 INFO  L471      AbstractCegarLoop]: Abstraction has 6083 states and 9919 transitions.
[2024-11-27 19:51:48,465 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)
[2024-11-27 19:51:48,465 INFO  L276                IsEmpty]: Start isEmpty. Operand 6083 states and 9919 transitions.
[2024-11-27 19:51:48,932 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7421
[2024-11-27 19:51:48,932 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-27 19:51:48,934 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]
[2024-11-27 19:51:48,956 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e2a0369-52fe-4f6b-8994-83a98e939c10/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-27 19:51:49,135 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e2a0369-52fe-4f6b-8994-83a98e939c10/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2024-11-27 19:51:49,136 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-27 19:51:49,138 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-27 19:51:49,141 INFO  L85        PathProgramCache]: Analyzing trace with hash -1572588319, now seen corresponding path program 1 times
[2024-11-27 19:51:49,141 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-27 19:51:49,141 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424552681]
[2024-11-27 19:51:49,142 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-27 19:51:49,142 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-27 19:51:55,849 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-27 19:55:01,119 INFO  L134       CoverageAnalysis]: Checked inductivity of 2144520 backedges. 5484 proven. 25296 refuted. 0 times theorem prover too weak. 2113740 trivial. 0 not checked.
[2024-11-27 19:55:01,119 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-27 19:55:01,120 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424552681]
[2024-11-27 19:55:01,123 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424552681] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-27 19:55:01,123 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [843544808]
[2024-11-27 19:55:01,128 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-27 19:55:01,129 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-27 19:55:01,129 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e2a0369-52fe-4f6b-8994-83a98e939c10/bin/uautomizer-verify-aQ6SnzHsRB/z3
[2024-11-27 19:55:01,133 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e2a0369-52fe-4f6b-8994-83a98e939c10/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-27 19:55:01,136 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e2a0369-52fe-4f6b-8994-83a98e939c10/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-27 19:55:06,091 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-27 19:55:06,178 INFO  L256         TraceCheckSpWp]: Trace formula consists of 14589 conjuncts, 45 conjuncts are in the unsatisfiable core
[2024-11-27 19:55:06,379 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-11-27 19:56:16,729 INFO  L134       CoverageAnalysis]: Checked inductivity of 2144520 backedges. 348456 proven. 18012 refuted. 0 times theorem prover too weak. 1778052 trivial. 0 not checked.
[2024-11-27 19:56:16,729 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2024-11-27 19:57:30,292 INFO  L134       CoverageAnalysis]: Checked inductivity of 2144520 backedges. 4476 proven. 20196 refuted. 0 times theorem prover too weak. 2119848 trivial. 0 not checked.
[2024-11-27 19:57:30,293 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [843544808] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-27 19:57:30,293 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-27 19:57:30,297 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 16, 16] total 44
[2024-11-27 19:57:30,297 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146806144]
[2024-11-27 19:57:30,297 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-27 19:57:30,376 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 44 states
[2024-11-27 19:57:30,376 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-27 19:57:30,425 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants.
[2024-11-27 19:57:30,426 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=1616, Unknown=0, NotChecked=0, Total=1892
[2024-11-27 19:57:30,445 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)
[2024-11-27 19:59:45,638 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-27 19:59:45,639 INFO  L93              Difference]: Finished difference Result 100614 states and 163913 transitions.
[2024-11-27 19:59:45,640 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. 
[2024-11-27 19:59:45,645 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
[2024-11-27 19:59:45,857 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-27 19:59:46,306 INFO  L225             Difference]: With dead ends: 100614
[2024-11-27 19:59:46,306 INFO  L226             Difference]: Without dead ends: 95558
[2024-11-27 19:59:46,351 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 14983 GetRequests, 14837 SyntacticMatches, 9 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5159 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=5687, Invalid=13495, Unknown=0, NotChecked=0, Total=19182
[2024-11-27 19:59:46,354 INFO  L435           NwaCegarLoop]: 32701 mSDtfsCounter, 376857 mSDsluCounter, 339853 mSDsCounter, 0 mSdLazyCounter, 56202 mSolverCounterSat, 27911 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 83.7s 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, 93.1s IncrementalHoareTripleChecker+Time
[2024-11-27 19:59:46,358 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [376884 Valid, 372554 Invalid, 84113 Unknown, 0 Unchecked, 1.5s Time], IncrementalHoareTripleChecker [27911 Valid, 56202 Invalid, 0 Unknown, 0 Unchecked, 93.1s Time]
[2024-11-27 19:59:46,464 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 95558 states.
[2024-11-27 20:00:03,819 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 95558 to 81230.
[2024-11-27 20:00:04,110 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)
[2024-11-27 20:00:04,563 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 81230 states to 81230 states and 132149 transitions.
[2024-11-27 20:00:04,665 INFO  L78                 Accepts]: Start accepts. Automaton has 81230 states and 132149 transitions. Word has length 7420
[2024-11-27 20:00:04,699 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-27 20:00:04,703 INFO  L471      AbstractCegarLoop]: Abstraction has 81230 states and 132149 transitions.
[2024-11-27 20:00:04,710 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)
[2024-11-27 20:00:04,714 INFO  L276                IsEmpty]: Start isEmpty. Operand 81230 states and 132149 transitions.
[2024-11-27 20:00:07,218 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7423
[2024-11-27 20:00:07,218 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-27 20:00:07,225 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]
[2024-11-27 20:00:07,340 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e2a0369-52fe-4f6b-8994-83a98e939c10/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-27 20:00:07,433 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e2a0369-52fe-4f6b-8994-83a98e939c10/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-27 20:00:07,433 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-27 20:00:07,436 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-27 20:00:07,442 INFO  L85        PathProgramCache]: Analyzing trace with hash -882363843, now seen corresponding path program 1 times
[2024-11-27 20:00:07,446 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-27 20:00:07,446 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142441566]
[2024-11-27 20:00:07,448 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-27 20:00:07,448 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-27 20:00:12,064 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-27 20:00:57,635 INFO  L134       CoverageAnalysis]: Checked inductivity of 2144520 backedges. 972 proven. 5232 refuted. 0 times theorem prover too weak. 2138316 trivial. 0 not checked.
[2024-11-27 20:00:57,635 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-27 20:00:57,635 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142441566]
[2024-11-27 20:00:57,636 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142441566] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-27 20:00:57,636 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1686424665]
[2024-11-27 20:00:57,638 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-27 20:00:57,638 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-27 20:00:57,638 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e2a0369-52fe-4f6b-8994-83a98e939c10/bin/uautomizer-verify-aQ6SnzHsRB/z3
[2024-11-27 20:00:57,640 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e2a0369-52fe-4f6b-8994-83a98e939c10/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-27 20:00:57,642 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e2a0369-52fe-4f6b-8994-83a98e939c10/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-27 20:01:01,490 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-27 20:01:01,569 INFO  L256         TraceCheckSpWp]: Trace formula consists of 14595 conjuncts, 24 conjuncts are in the unsatisfiable core
[2024-11-27 20:01:01,761 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-11-27 20:01:16,046 INFO  L134       CoverageAnalysis]: Checked inductivity of 2144520 backedges. 39324 proven. 9924 refuted. 0 times theorem prover too weak. 2095272 trivial. 0 not checked.
[2024-11-27 20:01:16,046 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2024-11-27 20:01:44,246 INFO  L134       CoverageAnalysis]: Checked inductivity of 2144520 backedges. 2352 proven. 10032 refuted. 0 times theorem prover too weak. 2132136 trivial. 0 not checked.
[2024-11-27 20:01:44,247 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1686424665] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-27 20:01:44,247 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-27 20:01:44,250 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11, 11] total 18
[2024-11-27 20:01:44,250 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427164272]
[2024-11-27 20:01:44,250 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-27 20:01:44,263 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 18 states
[2024-11-27 20:01:44,263 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-27 20:01:44,274 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2024-11-27 20:01:44,274 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306
[2024-11-27 20:01:44,278 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)
[2024-11-27 20:02:40,153 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-27 20:02:40,154 INFO  L93              Difference]: Finished difference Result 711617 states and 1158105 transitions.
[2024-11-27 20:02:40,154 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. 
[2024-11-27 20:02:40,157 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
[2024-11-27 20:02:40,172 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-27 20:02:42,581 INFO  L225             Difference]: With dead ends: 711617
[2024-11-27 20:02:42,581 INFO  L226             Difference]: Without dead ends: 605395
[2024-11-27 20:02:43,026 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 14874 GetRequests, 14834 SyntacticMatches, 5 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=362, Invalid=970, Unknown=0, NotChecked=0, Total=1332
[2024-11-27 20:02:43,028 INFO  L435           NwaCegarLoop]: 23116 mSDtfsCounter, 140124 mSDsluCounter, 105477 mSDsCounter, 0 mSdLazyCounter, 18695 mSolverCounterSat, 9034 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140130 SdHoareTripleChecker+Valid, 128593 SdHoareTripleChecker+Invalid, 27729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.5s SdHoareTripleChecker+Time, 9034 IncrementalHoareTripleChecker+Valid, 18695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.6s IncrementalHoareTripleChecker+Time
[2024-11-27 20:02:43,036 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [140130 Valid, 128593 Invalid, 27729 Unknown, 0 Unchecked, 0.5s Time], IncrementalHoareTripleChecker [9034 Valid, 18695 Invalid, 0 Unknown, 0 Unchecked, 23.6s Time]