./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound5.c --full-output --architecture 32bit


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


Checking for overflows
Using default analysis
Version 826ab2ba
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) )

 --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7f61497696f0e412e267c342267f07f29bf3ce290f707b3aa1a4f0ac00ff0274
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-826ab2b
[2024-11-14 05:40:08,000 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-14 05:40:08,129 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-32bit-Taipan_Default.epf
[2024-11-14 05:40:08,139 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-14 05:40:08,140 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-14 05:40:08,187 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-14 05:40:08,188 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-14 05:40:08,188 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-14 05:40:08,189 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-14 05:40:08,189 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-14 05:40:08,190 INFO  L153        SettingsManager]:  * User list type=DISABLED
[2024-11-14 05:40:08,191 INFO  L151        SettingsManager]: Preferences of Abstract Interpretation differ from their defaults:
[2024-11-14 05:40:08,191 INFO  L153        SettingsManager]:  * Explicit value domain=true
[2024-11-14 05:40:08,191 INFO  L153        SettingsManager]:  * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain
[2024-11-14 05:40:08,191 INFO  L153        SettingsManager]:  * Octagon Domain=false
[2024-11-14 05:40:08,191 INFO  L153        SettingsManager]:  * Abstract domain=CompoundDomain
[2024-11-14 05:40:08,191 INFO  L153        SettingsManager]:  * Check feasibility of abstract posts with an SMT solver=true
[2024-11-14 05:40:08,192 INFO  L153        SettingsManager]:  * Use the RCFG-of-the-future interface=true
[2024-11-14 05:40:08,192 INFO  L153        SettingsManager]:  * Interval Domain=false
[2024-11-14 05:40:08,192 INFO  L151        SettingsManager]: Preferences of Sifa differ from their defaults:
[2024-11-14 05:40:08,192 INFO  L153        SettingsManager]:  * Call Summarizer=TopInputCallSummarizer
[2024-11-14 05:40:08,192 INFO  L153        SettingsManager]:  * Simplification Technique=POLY_PAC
[2024-11-14 05:40:08,193 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-14 05:40:08,193 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-14 05:40:08,193 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-14 05:40:08,193 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-14 05:40:08,193 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-14 05:40:08,193 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-14 05:40:08,193 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-14 05:40:08,193 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-14 05:40:08,193 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-14 05:40:08,194 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-14 05:40:08,194 INFO  L153        SettingsManager]:  * Check absence of signed integer overflows=ASSERTandASSUME
[2024-11-14 05:40:08,194 INFO  L153        SettingsManager]:  * Check unreachability of reach_error function=false
[2024-11-14 05:40:08,194 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-14 05:40:08,194 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-14 05:40:08,194 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-14 05:40:08,194 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-14 05:40:08,194 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-14 05:40:08,194 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-14 05:40:08,195 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2024-11-14 05:40:08,195 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-14 05:40:08,195 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-14 05:40:08,195 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-14 05:40:08,196 INFO  L153        SettingsManager]:  * Trace refinement strategy=SIFA_TAIPAN
[2024-11-14 05:40:08,197 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-14 05:40:08,197 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-14 05:40:08,197 INFO  L153        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2024-11-14 05:40:08,197 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-14 05:40:08,197 INFO  L153        SettingsManager]:  * Abstract interpretation Mode=USE_PREDICATES
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_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E
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 ! overflow) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan
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 -> 7f61497696f0e412e267c342267f07f29bf3ce290f707b3aa1a4f0ac00ff0274
[2024-11-14 05:40:08,588 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-14 05:40:08,598 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-14 05:40:08,602 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-14 05:40:08,603 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-14 05:40:08,604 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-14 05:40:08,605 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound5.c
Unable to find full path for "g++"
[2024-11-14 05:40:10,601 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-14 05:40:10,948 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-14 05:40:10,953 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_unwindbound5.c
[2024-11-14 05:40:10,967 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/data/36f401479/958ea3098f1c47ec84b459f6d2e0042d/FLAG2147400d0
[2024-11-14 05:40:10,992 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/data/36f401479/958ea3098f1c47ec84b459f6d2e0042d
[2024-11-14 05:40:10,997 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-14 05:40:10,999 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-14 05:40:11,001 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-14 05:40:11,002 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-14 05:40:11,007 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-14 05:40:11,008 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:40:10" (1/1) ...
[2024-11-14 05:40:11,009 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@736deeb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:40:11, skipping insertion in model container
[2024-11-14 05:40:11,012 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:40:10" (1/1) ...
[2024-11-14 05:40:11,033 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-14 05:40:11,252 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-14 05:40:11,262 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-14 05:40:11,284 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-14 05:40:11,300 INFO  L204         MainTranslator]: Completed translation
[2024-11-14 05:40:11,301 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:40:11 WrapperNode
[2024-11-14 05:40:11,301 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-14 05:40:11,302 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-14 05:40:11,302 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-14 05:40:11,303 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-14 05:40:11,310 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:40:11" (1/1) ...
[2024-11-14 05:40:11,319 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:40:11" (1/1) ...
[2024-11-14 05:40:11,339 INFO  L138                Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 120
[2024-11-14 05:40:11,340 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-14 05:40:11,340 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-14 05:40:11,340 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-14 05:40:11,340 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-14 05:40:11,349 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:40:11" (1/1) ...
[2024-11-14 05:40:11,349 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:40:11" (1/1) ...
[2024-11-14 05:40:11,351 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:40:11" (1/1) ...
[2024-11-14 05:40:11,352 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:40:11" (1/1) ...
[2024-11-14 05:40:11,355 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:40:11" (1/1) ...
[2024-11-14 05:40:11,359 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:40:11" (1/1) ...
[2024-11-14 05:40:11,360 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:40:11" (1/1) ...
[2024-11-14 05:40:11,361 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:40:11" (1/1) ...
[2024-11-14 05:40:11,363 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-14 05:40:11,364 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-14 05:40:11,364 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-14 05:40:11,364 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-14 05:40:11,366 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:40:11" (1/1) ...
[2024-11-14 05:40:11,373 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2024-11-14 05:40:11,389 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3
[2024-11-14 05:40:11,404 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2024-11-14 05:40:11,420 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2024-11-14 05:40:11,439 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-14 05:40:11,440 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2024-11-14 05:40:11,440 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-14 05:40:11,440 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-14 05:40:11,440 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2024-11-14 05:40:11,440 INFO  L138     BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2024-11-14 05:40:11,523 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-14 05:40:11,530 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-14 05:40:12,077 INFO  L?                        ?]: Removed 137 outVars from TransFormulas that were not future-live.
[2024-11-14 05:40:12,078 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-14 05:40:12,120 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-14 05:40:12,120 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-14 05:40:12,121 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:40:12 BoogieIcfgContainer
[2024-11-14 05:40:12,121 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-14 05:40:12,123 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-14 05:40:12,123 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-14 05:40:12,128 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-14 05:40:12,129 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:40:10" (1/3) ...
[2024-11-14 05:40:12,129 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30d6b1ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:40:12, skipping insertion in model container
[2024-11-14 05:40:12,130 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:40:11" (2/3) ...
[2024-11-14 05:40:12,130 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30d6b1ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:40:12, skipping insertion in model container
[2024-11-14 05:40:12,130 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:40:12" (3/3) ...
[2024-11-14 05:40:12,131 INFO  L112   eAbstractionObserver]: Analyzing ICFG bresenham-ll_unwindbound5.c
[2024-11-14 05:40:12,149 INFO  L217   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-14 05:40:12,151 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to ICFG bresenham-ll_unwindbound5.c that has 2 procedures, 132 locations, 1 initial locations, 1 loop locations, and 60 error locations.
[2024-11-14 05:40:12,219 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-14 05:40:12,239 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=FINITE_AUTOMATA, 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;@634e9f34, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-14 05:40:12,240 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 60 error locations.
[2024-11-14 05:40:12,245 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 132 states, 68 states have (on average 1.9411764705882353) internal successors, (132), 128 states have internal predecessors, (132), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-14 05:40:12,253 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3
[2024-11-14 05:40:12,253 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-14 05:40:12,254 INFO  L215           NwaCegarLoop]: trace histogram [1, 1]
[2024-11-14 05:40:12,254 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] ===
[2024-11-14 05:40:12,259 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 05:40:12,260 INFO  L85        PathProgramCache]: Analyzing trace with hash 6265, now seen corresponding path program 1 times
[2024-11-14 05:40:12,269 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2024-11-14 05:40:12,270 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287505477]
[2024-11-14 05:40:12,270 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:40:12,271 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 05:40:12,364 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 05:40:12,469 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 05:40:12,469 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2024-11-14 05:40:12,470 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287505477]
[2024-11-14 05:40:12,472 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287505477] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-14 05:40:12,473 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-14 05:40:12,473 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2024-11-14 05:40:12,475 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467830882]
[2024-11-14 05:40:12,476 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-14 05:40:12,482 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-14 05:40:12,483 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2024-11-14 05:40:12,509 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-14 05:40:12,510 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-14 05:40:12,514 INFO  L87              Difference]: Start difference. First operand  has 132 states, 68 states have (on average 1.9411764705882353) internal successors, (132), 128 states have internal predecessors, (132), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand  has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-14 05:40:12,839 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-14 05:40:12,839 INFO  L93              Difference]: Finished difference Result 180 states and 184 transitions.
[2024-11-14 05:40:12,841 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-14 05:40:12,842 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2
[2024-11-14 05:40:12,843 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-14 05:40:12,851 INFO  L225             Difference]: With dead ends: 180
[2024-11-14 05:40:12,851 INFO  L226             Difference]: Without dead ends: 125
[2024-11-14 05:40:12,855 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-14 05:40:12,858 INFO  L432           NwaCegarLoop]: 68 mSDtfsCounter, 96 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-14 05:40:12,859 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 70 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-14 05:40:12,878 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 125 states.
[2024-11-14 05:40:12,918 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125.
[2024-11-14 05:40:12,920 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 125 states, 67 states have (on average 1.8656716417910448) internal successors, (125), 122 states have internal predecessors, (125), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-14 05:40:12,927 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 127 transitions.
[2024-11-14 05:40:12,929 INFO  L78                 Accepts]: Start accepts. Automaton has 125 states and 127 transitions. Word has length 2
[2024-11-14 05:40:12,930 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-14 05:40:12,931 INFO  L471      AbstractCegarLoop]: Abstraction has 125 states and 127 transitions.
[2024-11-14 05:40:12,932 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-14 05:40:12,933 INFO  L276                IsEmpty]: Start isEmpty. Operand 125 states and 127 transitions.
[2024-11-14 05:40:12,934 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4
[2024-11-14 05:40:12,934 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-14 05:40:12,935 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1]
[2024-11-14 05:40:12,935 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-14 05:40:12,936 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] ===
[2024-11-14 05:40:12,937 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 05:40:12,937 INFO  L85        PathProgramCache]: Analyzing trace with hash 194251, now seen corresponding path program 1 times
[2024-11-14 05:40:12,937 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2024-11-14 05:40:12,938 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252386939]
[2024-11-14 05:40:12,938 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:40:12,939 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 05:40:12,956 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 05:40:13,010 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 05:40:13,011 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2024-11-14 05:40:13,011 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [252386939]
[2024-11-14 05:40:13,011 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [252386939] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-14 05:40:13,011 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-14 05:40:13,011 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2024-11-14 05:40:13,011 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917049308]
[2024-11-14 05:40:13,011 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-14 05:40:13,013 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-14 05:40:13,013 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2024-11-14 05:40:13,018 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-14 05:40:13,019 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-14 05:40:13,019 INFO  L87              Difference]: Start difference. First operand 125 states and 127 transitions. Second operand  has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-14 05:40:13,221 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-14 05:40:13,222 INFO  L93              Difference]: Finished difference Result 125 states and 127 transitions.
[2024-11-14 05:40:13,223 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-14 05:40:13,223 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3
[2024-11-14 05:40:13,224 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-14 05:40:13,225 INFO  L225             Difference]: With dead ends: 125
[2024-11-14 05:40:13,226 INFO  L226             Difference]: Without dead ends: 121
[2024-11-14 05:40:13,227 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-14 05:40:13,228 INFO  L432           NwaCegarLoop]: 66 mSDtfsCounter, 94 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-14 05:40:13,229 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 67 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-14 05:40:13,232 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 121 states.
[2024-11-14 05:40:13,246 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121.
[2024-11-14 05:40:13,250 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 121 states, 67 states have (on average 1.8059701492537314) internal successors, (121), 118 states have internal predecessors, (121), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-14 05:40:13,251 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 123 transitions.
[2024-11-14 05:40:13,253 INFO  L78                 Accepts]: Start accepts. Automaton has 121 states and 123 transitions. Word has length 3
[2024-11-14 05:40:13,253 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-14 05:40:13,254 INFO  L471      AbstractCegarLoop]: Abstraction has 121 states and 123 transitions.
[2024-11-14 05:40:13,254 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-14 05:40:13,254 INFO  L276                IsEmpty]: Start isEmpty. Operand 121 states and 123 transitions.
[2024-11-14 05:40:13,254 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5
[2024-11-14 05:40:13,254 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-14 05:40:13,255 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1]
[2024-11-14 05:40:13,255 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-14 05:40:13,255 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] ===
[2024-11-14 05:40:13,256 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 05:40:13,257 INFO  L85        PathProgramCache]: Analyzing trace with hash 6021819, now seen corresponding path program 1 times
[2024-11-14 05:40:13,257 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2024-11-14 05:40:13,257 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179354426]
[2024-11-14 05:40:13,257 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:40:13,258 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 05:40:13,277 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 05:40:13,344 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 05:40:13,345 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2024-11-14 05:40:13,345 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179354426]
[2024-11-14 05:40:13,345 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179354426] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-14 05:40:13,345 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-14 05:40:13,345 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2024-11-14 05:40:13,345 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245956158]
[2024-11-14 05:40:13,346 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-14 05:40:13,346 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-14 05:40:13,346 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2024-11-14 05:40:13,348 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-14 05:40:13,348 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-14 05:40:13,348 INFO  L87              Difference]: Start difference. First operand 121 states and 123 transitions. Second operand  has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-14 05:40:13,675 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-14 05:40:13,675 INFO  L93              Difference]: Finished difference Result 121 states and 123 transitions.
[2024-11-14 05:40:13,676 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-14 05:40:13,677 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4
[2024-11-14 05:40:13,677 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-14 05:40:13,678 INFO  L225             Difference]: With dead ends: 121
[2024-11-14 05:40:13,678 INFO  L226             Difference]: Without dead ends: 120
[2024-11-14 05:40:13,678 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-14 05:40:13,679 INFO  L432           NwaCegarLoop]: 52 mSDtfsCounter, 87 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-14 05:40:13,679 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 53 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-14 05:40:13,684 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 120 states.
[2024-11-14 05:40:13,692 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120.
[2024-11-14 05:40:13,693 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 120 states, 67 states have (on average 1.791044776119403) internal successors, (120), 117 states have internal predecessors, (120), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-14 05:40:13,694 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 122 transitions.
[2024-11-14 05:40:13,695 INFO  L78                 Accepts]: Start accepts. Automaton has 120 states and 122 transitions. Word has length 4
[2024-11-14 05:40:13,695 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-14 05:40:13,695 INFO  L471      AbstractCegarLoop]: Abstraction has 120 states and 122 transitions.
[2024-11-14 05:40:13,695 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-14 05:40:13,695 INFO  L276                IsEmpty]: Start isEmpty. Operand 120 states and 122 transitions.
[2024-11-14 05:40:13,695 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 6
[2024-11-14 05:40:13,696 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-14 05:40:13,696 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1]
[2024-11-14 05:40:13,696 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-14 05:40:13,696 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] ===
[2024-11-14 05:40:13,697 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 05:40:13,697 INFO  L85        PathProgramCache]: Analyzing trace with hash 186676429, now seen corresponding path program 1 times
[2024-11-14 05:40:13,697 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2024-11-14 05:40:13,697 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505118101]
[2024-11-14 05:40:13,697 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:40:13,698 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 05:40:13,705 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 05:40:13,737 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 05:40:13,738 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2024-11-14 05:40:13,738 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505118101]
[2024-11-14 05:40:13,738 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505118101] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-14 05:40:13,738 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-14 05:40:13,738 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2024-11-14 05:40:13,739 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492074802]
[2024-11-14 05:40:13,739 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-14 05:40:13,739 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-14 05:40:13,739 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2024-11-14 05:40:13,740 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-14 05:40:13,740 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-14 05:40:13,740 INFO  L87              Difference]: Start difference. First operand 120 states and 122 transitions. Second operand  has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-14 05:40:14,060 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-14 05:40:14,060 INFO  L93              Difference]: Finished difference Result 120 states and 122 transitions.
[2024-11-14 05:40:14,060 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-14 05:40:14,061 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5
[2024-11-14 05:40:14,061 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-14 05:40:14,062 INFO  L225             Difference]: With dead ends: 120
[2024-11-14 05:40:14,062 INFO  L226             Difference]: Without dead ends: 119
[2024-11-14 05:40:14,062 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-14 05:40:14,065 INFO  L432           NwaCegarLoop]: 52 mSDtfsCounter, 86 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-14 05:40:14,066 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 53 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-14 05:40:14,067 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 119 states.
[2024-11-14 05:40:14,077 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119.
[2024-11-14 05:40:14,082 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 119 states, 67 states have (on average 1.7761194029850746) internal successors, (119), 116 states have internal predecessors, (119), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-14 05:40:14,084 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 121 transitions.
[2024-11-14 05:40:14,087 INFO  L78                 Accepts]: Start accepts. Automaton has 119 states and 121 transitions. Word has length 5
[2024-11-14 05:40:14,087 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-14 05:40:14,088 INFO  L471      AbstractCegarLoop]: Abstraction has 119 states and 121 transitions.
[2024-11-14 05:40:14,088 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-14 05:40:14,088 INFO  L276                IsEmpty]: Start isEmpty. Operand 119 states and 121 transitions.
[2024-11-14 05:40:14,089 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2024-11-14 05:40:14,089 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-14 05:40:14,089 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2024-11-14 05:40:14,089 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-14 05:40:14,089 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] ===
[2024-11-14 05:40:14,090 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 05:40:14,090 INFO  L85        PathProgramCache]: Analyzing trace with hash -992576753, now seen corresponding path program 1 times
[2024-11-14 05:40:14,090 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2024-11-14 05:40:14,090 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35726111]
[2024-11-14 05:40:14,090 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:40:14,090 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 05:40:14,116 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 05:40:14,216 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 05:40:14,216 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2024-11-14 05:40:14,217 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35726111]
[2024-11-14 05:40:14,217 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35726111] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-14 05:40:14,217 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-14 05:40:14,217 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-14 05:40:14,217 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929747573]
[2024-11-14 05:40:14,217 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-14 05:40:14,217 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-14 05:40:14,218 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2024-11-14 05:40:14,218 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-14 05:40:14,218 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-14 05:40:14,219 INFO  L87              Difference]: Start difference. First operand 119 states and 121 transitions. Second operand  has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-14 05:40:14,278 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-14 05:40:14,279 INFO  L93              Difference]: Finished difference Result 167 states and 169 transitions.
[2024-11-14 05:40:14,280 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-14 05:40:14,280 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7
[2024-11-14 05:40:14,280 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-14 05:40:14,282 INFO  L225             Difference]: With dead ends: 167
[2024-11-14 05:40:14,282 INFO  L226             Difference]: Without dead ends: 123
[2024-11-14 05:40:14,282 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-14 05:40:14,283 INFO  L432           NwaCegarLoop]: 115 mSDtfsCounter, 4 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-14 05:40:14,286 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 339 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-14 05:40:14,287 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 123 states.
[2024-11-14 05:40:14,300 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123.
[2024-11-14 05:40:14,300 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 123 states, 71 states have (on average 1.732394366197183) internal successors, (123), 120 states have internal predecessors, (123), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-14 05:40:14,301 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 125 transitions.
[2024-11-14 05:40:14,305 INFO  L78                 Accepts]: Start accepts. Automaton has 123 states and 125 transitions. Word has length 7
[2024-11-14 05:40:14,305 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-14 05:40:14,305 INFO  L471      AbstractCegarLoop]: Abstraction has 123 states and 125 transitions.
[2024-11-14 05:40:14,306 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-14 05:40:14,306 INFO  L276                IsEmpty]: Start isEmpty. Operand 123 states and 125 transitions.
[2024-11-14 05:40:14,306 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2024-11-14 05:40:14,306 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-14 05:40:14,306 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-14 05:40:14,306 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-14 05:40:14,307 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] ===
[2024-11-14 05:40:14,307 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 05:40:14,307 INFO  L85        PathProgramCache]: Analyzing trace with hash 995832163, now seen corresponding path program 1 times
[2024-11-14 05:40:14,308 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2024-11-14 05:40:14,308 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653266408]
[2024-11-14 05:40:14,308 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:40:14,308 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 05:40:14,328 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-14 05:40:14,334 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2068315219]
[2024-11-14 05:40:14,338 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:40:14,338 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-14 05:40:14,339 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3
[2024-11-14 05:40:14,347 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-14 05:40:14,357 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-14 05:40:14,430 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 05:40:14,432 INFO  L255         TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-14 05:40:14,437 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-14 05:40:14,460 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 05:40:14,461 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-14 05:40:14,461 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2024-11-14 05:40:14,461 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653266408]
[2024-11-14 05:40:14,462 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-11-14 05:40:14,462 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2068315219]
[2024-11-14 05:40:14,462 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2068315219] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-14 05:40:14,462 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-14 05:40:14,462 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-14 05:40:14,463 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148750313]
[2024-11-14 05:40:14,463 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-14 05:40:14,463 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-14 05:40:14,463 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2024-11-14 05:40:14,464 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-14 05:40:14,464 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-14 05:40:14,464 INFO  L87              Difference]: Start difference. First operand 123 states and 125 transitions. Second operand  has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-14 05:40:14,645 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-14 05:40:14,645 INFO  L93              Difference]: Finished difference Result 191 states and 196 transitions.
[2024-11-14 05:40:14,646 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-14 05:40:14,646 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10
[2024-11-14 05:40:14,646 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-14 05:40:14,647 INFO  L225             Difference]: With dead ends: 191
[2024-11-14 05:40:14,647 INFO  L226             Difference]: Without dead ends: 185
[2024-11-14 05:40:14,648 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-14 05:40:14,649 INFO  L432           NwaCegarLoop]: 110 mSDtfsCounter, 61 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-14 05:40:14,649 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 212 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-14 05:40:14,650 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 185 states.
[2024-11-14 05:40:14,658 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 147.
[2024-11-14 05:40:14,658 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 147 states, 94 states have (on average 1.7127659574468086) internal successors, (161), 143 states have internal predecessors, (161), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-14 05:40:14,659 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 165 transitions.
[2024-11-14 05:40:14,660 INFO  L78                 Accepts]: Start accepts. Automaton has 147 states and 165 transitions. Word has length 10
[2024-11-14 05:40:14,660 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-14 05:40:14,660 INFO  L471      AbstractCegarLoop]: Abstraction has 147 states and 165 transitions.
[2024-11-14 05:40:14,660 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-14 05:40:14,660 INFO  L276                IsEmpty]: Start isEmpty. Operand 147 states and 165 transitions.
[2024-11-14 05:40:14,660 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2024-11-14 05:40:14,661 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-14 05:40:14,661 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-14 05:40:14,684 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2024-11-14 05:40:14,865 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-14 05:40:14,866 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] ===
[2024-11-14 05:40:14,866 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 05:40:14,866 INFO  L85        PathProgramCache]: Analyzing trace with hash -782996539, now seen corresponding path program 1 times
[2024-11-14 05:40:14,866 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2024-11-14 05:40:14,866 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415478618]
[2024-11-14 05:40:14,867 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:40:14,867 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 05:40:14,884 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-14 05:40:14,884 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2017836848]
[2024-11-14 05:40:14,884 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:40:14,885 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-14 05:40:14,885 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3
[2024-11-14 05:40:14,888 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-14 05:40:14,895 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-14 05:40:14,945 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 05:40:14,947 INFO  L255         TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-14 05:40:14,948 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-14 05:40:14,973 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 05:40:14,974 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-14 05:40:14,974 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2024-11-14 05:40:14,974 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415478618]
[2024-11-14 05:40:14,974 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-11-14 05:40:14,974 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2017836848]
[2024-11-14 05:40:14,974 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2017836848] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-14 05:40:14,974 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-14 05:40:14,975 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-14 05:40:14,975 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062687216]
[2024-11-14 05:40:14,975 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-14 05:40:14,975 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-14 05:40:14,975 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2024-11-14 05:40:14,976 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-14 05:40:14,976 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-14 05:40:14,976 INFO  L87              Difference]: Start difference. First operand 147 states and 165 transitions. Second operand  has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-14 05:40:15,102 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-14 05:40:15,102 INFO  L93              Difference]: Finished difference Result 253 states and 276 transitions.
[2024-11-14 05:40:15,103 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-14 05:40:15,103 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12
[2024-11-14 05:40:15,103 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-14 05:40:15,104 INFO  L225             Difference]: With dead ends: 253
[2024-11-14 05:40:15,105 INFO  L226             Difference]: Without dead ends: 247
[2024-11-14 05:40:15,105 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-14 05:40:15,106 INFO  L432           NwaCegarLoop]: 109 mSDtfsCounter, 94 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-14 05:40:15,106 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 210 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-14 05:40:15,107 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 247 states.
[2024-11-14 05:40:15,128 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 199.
[2024-11-14 05:40:15,129 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 199 states, 145 states have (on average 1.703448275862069) internal successors, (247), 194 states have internal predecessors, (247), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-11-14 05:40:15,130 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 253 transitions.
[2024-11-14 05:40:15,130 INFO  L78                 Accepts]: Start accepts. Automaton has 199 states and 253 transitions. Word has length 12
[2024-11-14 05:40:15,131 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-14 05:40:15,131 INFO  L471      AbstractCegarLoop]: Abstraction has 199 states and 253 transitions.
[2024-11-14 05:40:15,131 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-14 05:40:15,131 INFO  L276                IsEmpty]: Start isEmpty. Operand 199 states and 253 transitions.
[2024-11-14 05:40:15,131 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2024-11-14 05:40:15,132 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-14 05:40:15,132 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-14 05:40:15,153 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-11-14 05:40:15,335 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-14 05:40:15,336 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] ===
[2024-11-14 05:40:15,336 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 05:40:15,336 INFO  L85        PathProgramCache]: Analyzing trace with hash -840395225, now seen corresponding path program 1 times
[2024-11-14 05:40:15,336 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2024-11-14 05:40:15,336 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659072160]
[2024-11-14 05:40:15,336 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:40:15,336 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 05:40:15,359 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-14 05:40:15,362 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1999241213]
[2024-11-14 05:40:15,363 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:40:15,363 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-14 05:40:15,363 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3
[2024-11-14 05:40:15,369 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-14 05:40:15,374 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-14 05:40:15,422 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 05:40:15,423 INFO  L255         TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-14 05:40:15,424 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-14 05:40:15,480 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 05:40:15,480 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-14 05:40:15,480 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2024-11-14 05:40:15,480 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659072160]
[2024-11-14 05:40:15,481 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-11-14 05:40:15,481 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1999241213]
[2024-11-14 05:40:15,481 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1999241213] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-14 05:40:15,481 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-14 05:40:15,481 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-14 05:40:15,481 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962037889]
[2024-11-14 05:40:15,481 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-14 05:40:15,481 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-14 05:40:15,482 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2024-11-14 05:40:15,482 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-14 05:40:15,482 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-14 05:40:15,482 INFO  L87              Difference]: Start difference. First operand 199 states and 253 transitions. Second operand  has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-14 05:40:15,821 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-14 05:40:15,822 INFO  L93              Difference]: Finished difference Result 291 states and 354 transitions.
[2024-11-14 05:40:15,825 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-14 05:40:15,826 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14
[2024-11-14 05:40:15,827 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-14 05:40:15,829 INFO  L225             Difference]: With dead ends: 291
[2024-11-14 05:40:15,829 INFO  L226             Difference]: Without dead ends: 289
[2024-11-14 05:40:15,829 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-14 05:40:15,830 INFO  L432           NwaCegarLoop]: 75 mSDtfsCounter, 143 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-14 05:40:15,830 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 228 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-14 05:40:15,833 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 289 states.
[2024-11-14 05:40:15,851 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 200.
[2024-11-14 05:40:15,852 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 200 states, 146 states have (on average 1.6917808219178083) internal successors, (247), 195 states have internal predecessors, (247), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-11-14 05:40:15,854 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 253 transitions.
[2024-11-14 05:40:15,855 INFO  L78                 Accepts]: Start accepts. Automaton has 200 states and 253 transitions. Word has length 14
[2024-11-14 05:40:15,855 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-14 05:40:15,855 INFO  L471      AbstractCegarLoop]: Abstraction has 200 states and 253 transitions.
[2024-11-14 05:40:15,855 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-14 05:40:15,855 INFO  L276                IsEmpty]: Start isEmpty. Operand 200 states and 253 transitions.
[2024-11-14 05:40:15,856 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2024-11-14 05:40:15,857 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-14 05:40:15,857 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-14 05:40:15,877 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-11-14 05:40:16,057 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-14 05:40:16,058 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] ===
[2024-11-14 05:40:16,058 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 05:40:16,058 INFO  L85        PathProgramCache]: Analyzing trace with hash -282448134, now seen corresponding path program 1 times
[2024-11-14 05:40:16,058 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2024-11-14 05:40:16,058 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600581387]
[2024-11-14 05:40:16,058 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:40:16,058 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 05:40:16,079 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-14 05:40:16,084 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [333421353]
[2024-11-14 05:40:16,084 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:40:16,084 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-14 05:40:16,084 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3
[2024-11-14 05:40:16,087 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-14 05:40:16,090 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-14 05:40:16,145 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 05:40:16,146 INFO  L255         TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-14 05:40:16,147 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-14 05:40:16,186 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 05:40:16,186 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-14 05:40:16,187 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2024-11-14 05:40:16,187 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600581387]
[2024-11-14 05:40:16,187 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-11-14 05:40:16,187 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [333421353]
[2024-11-14 05:40:16,187 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [333421353] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-14 05:40:16,187 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-14 05:40:16,187 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-14 05:40:16,188 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121566684]
[2024-11-14 05:40:16,188 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-14 05:40:16,188 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-14 05:40:16,188 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2024-11-14 05:40:16,188 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-14 05:40:16,189 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-14 05:40:16,189 INFO  L87              Difference]: Start difference. First operand 200 states and 253 transitions. Second operand  has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-14 05:40:16,464 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-14 05:40:16,465 INFO  L93              Difference]: Finished difference Result 290 states and 352 transitions.
[2024-11-14 05:40:16,465 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-14 05:40:16,465 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15
[2024-11-14 05:40:16,466 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-14 05:40:16,467 INFO  L225             Difference]: With dead ends: 290
[2024-11-14 05:40:16,467 INFO  L226             Difference]: Without dead ends: 288
[2024-11-14 05:40:16,468 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-14 05:40:16,468 INFO  L432           NwaCegarLoop]: 77 mSDtfsCounter, 141 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-14 05:40:16,468 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 231 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-14 05:40:16,470 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 288 states.
[2024-11-14 05:40:16,479 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 201.
[2024-11-14 05:40:16,480 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 201 states, 147 states have (on average 1.6802721088435375) internal successors, (247), 196 states have internal predecessors, (247), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-11-14 05:40:16,481 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 253 transitions.
[2024-11-14 05:40:16,481 INFO  L78                 Accepts]: Start accepts. Automaton has 201 states and 253 transitions. Word has length 15
[2024-11-14 05:40:16,481 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-14 05:40:16,481 INFO  L471      AbstractCegarLoop]: Abstraction has 201 states and 253 transitions.
[2024-11-14 05:40:16,482 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-14 05:40:16,482 INFO  L276                IsEmpty]: Start isEmpty. Operand 201 states and 253 transitions.
[2024-11-14 05:40:16,482 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2024-11-14 05:40:16,482 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-14 05:40:16,482 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-14 05:40:16,505 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-11-14 05:40:16,683 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-14 05:40:16,683 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] ===
[2024-11-14 05:40:16,684 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 05:40:16,684 INFO  L85        PathProgramCache]: Analyzing trace with hash -165957495, now seen corresponding path program 1 times
[2024-11-14 05:40:16,684 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2024-11-14 05:40:16,684 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831798443]
[2024-11-14 05:40:16,684 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:40:16,684 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 05:40:16,700 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-14 05:40:16,705 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [145246627]
[2024-11-14 05:40:16,705 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:40:16,705 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-14 05:40:16,705 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3
[2024-11-14 05:40:16,707 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-14 05:40:16,710 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-14 05:40:16,758 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 05:40:16,759 INFO  L255         TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-14 05:40:16,760 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-14 05:40:16,795 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 05:40:16,795 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-14 05:40:16,795 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2024-11-14 05:40:16,795 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831798443]
[2024-11-14 05:40:16,795 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-11-14 05:40:16,796 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [145246627]
[2024-11-14 05:40:16,796 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [145246627] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-14 05:40:16,796 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-14 05:40:16,796 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-14 05:40:16,796 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614044150]
[2024-11-14 05:40:16,796 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-14 05:40:16,797 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-14 05:40:16,797 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2024-11-14 05:40:16,797 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-14 05:40:16,798 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-14 05:40:16,798 INFO  L87              Difference]: Start difference. First operand 201 states and 253 transitions. Second operand  has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-14 05:40:17,031 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-14 05:40:17,031 INFO  L93              Difference]: Finished difference Result 276 states and 296 transitions.
[2024-11-14 05:40:17,033 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-14 05:40:17,033 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16
[2024-11-14 05:40:17,033 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-14 05:40:17,035 INFO  L225             Difference]: With dead ends: 276
[2024-11-14 05:40:17,035 INFO  L226             Difference]: Without dead ends: 274
[2024-11-14 05:40:17,035 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-14 05:40:17,036 INFO  L432           NwaCegarLoop]: 77 mSDtfsCounter, 194 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-14 05:40:17,036 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 251 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-14 05:40:17,037 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 274 states.
[2024-11-14 05:40:17,050 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 201.
[2024-11-14 05:40:17,050 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 201 states, 147 states have (on average 1.6598639455782314) internal successors, (244), 196 states have internal predecessors, (244), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-11-14 05:40:17,052 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 250 transitions.
[2024-11-14 05:40:17,052 INFO  L78                 Accepts]: Start accepts. Automaton has 201 states and 250 transitions. Word has length 16
[2024-11-14 05:40:17,053 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-14 05:40:17,055 INFO  L471      AbstractCegarLoop]: Abstraction has 201 states and 250 transitions.
[2024-11-14 05:40:17,056 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-14 05:40:17,056 INFO  L276                IsEmpty]: Start isEmpty. Operand 201 states and 250 transitions.
[2024-11-14 05:40:17,056 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2024-11-14 05:40:17,056 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-14 05:40:17,056 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-14 05:40:17,083 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2024-11-14 05:40:17,257 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9
[2024-11-14 05:40:17,257 INFO  L396      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] ===
[2024-11-14 05:40:17,262 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 05:40:17,263 INFO  L85        PathProgramCache]: Analyzing trace with hash -849714980, now seen corresponding path program 1 times
[2024-11-14 05:40:17,263 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2024-11-14 05:40:17,263 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131122306]
[2024-11-14 05:40:17,263 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:40:17,263 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 05:40:17,282 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-14 05:40:17,287 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1811490445]
[2024-11-14 05:40:17,287 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:40:17,287 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-14 05:40:17,287 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3
[2024-11-14 05:40:17,290 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-14 05:40:17,294 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-11-14 05:40:17,339 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 05:40:17,340 INFO  L255         TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-14 05:40:17,341 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-14 05:40:17,394 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 05:40:17,396 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-14 05:40:17,397 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2024-11-14 05:40:17,397 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131122306]
[2024-11-14 05:40:17,397 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-11-14 05:40:17,397 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1811490445]
[2024-11-14 05:40:17,397 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1811490445] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-14 05:40:17,397 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-14 05:40:17,398 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-14 05:40:17,398 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400580227]
[2024-11-14 05:40:17,398 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-14 05:40:17,398 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-14 05:40:17,398 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2024-11-14 05:40:17,399 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-14 05:40:17,399 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-14 05:40:17,399 INFO  L87              Difference]: Start difference. First operand 201 states and 250 transitions. Second operand  has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-14 05:40:17,649 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-14 05:40:17,649 INFO  L93              Difference]: Finished difference Result 274 states and 293 transitions.
[2024-11-14 05:40:17,650 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-14 05:40:17,650 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2024-11-14 05:40:17,650 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-14 05:40:17,652 INFO  L225             Difference]: With dead ends: 274
[2024-11-14 05:40:17,652 INFO  L226             Difference]: Without dead ends: 272
[2024-11-14 05:40:17,653 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-14 05:40:17,653 INFO  L432           NwaCegarLoop]: 79 mSDtfsCounter, 191 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-14 05:40:17,654 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 253 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-14 05:40:17,655 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 272 states.
[2024-11-14 05:40:17,665 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 201.
[2024-11-14 05:40:17,665 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 201 states, 147 states have (on average 1.6394557823129252) internal successors, (241), 196 states have internal predecessors, (241), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-11-14 05:40:17,667 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 247 transitions.
[2024-11-14 05:40:17,667 INFO  L78                 Accepts]: Start accepts. Automaton has 201 states and 247 transitions. Word has length 17
[2024-11-14 05:40:17,667 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-14 05:40:17,667 INFO  L471      AbstractCegarLoop]: Abstraction has 201 states and 247 transitions.
[2024-11-14 05:40:17,668 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-14 05:40:17,668 INFO  L276                IsEmpty]: Start isEmpty. Operand 201 states and 247 transitions.
[2024-11-14 05:40:17,668 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2024-11-14 05:40:17,668 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-14 05:40:17,668 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-14 05:40:17,692 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0
[2024-11-14 05:40:17,869 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10
[2024-11-14 05:40:17,870 INFO  L396      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] ===
[2024-11-14 05:40:17,870 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 05:40:17,870 INFO  L85        PathProgramCache]: Analyzing trace with hash -571360533, now seen corresponding path program 1 times
[2024-11-14 05:40:17,870 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2024-11-14 05:40:17,870 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805049564]
[2024-11-14 05:40:17,871 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:40:17,871 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 05:40:17,888 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-14 05:40:17,889 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1638201240]
[2024-11-14 05:40:17,889 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:40:17,889 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-14 05:40:17,889 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3
[2024-11-14 05:40:17,893 INFO  L229       MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-14 05:40:17,898 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2024-11-14 05:40:17,953 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 05:40:17,954 INFO  L255         TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-14 05:40:17,956 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-14 05:40:18,095 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 05:40:18,095 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-14 05:40:18,095 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2024-11-14 05:40:18,095 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805049564]
[2024-11-14 05:40:18,095 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-11-14 05:40:18,095 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1638201240]
[2024-11-14 05:40:18,095 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1638201240] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-14 05:40:18,096 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-14 05:40:18,096 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-14 05:40:18,096 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103499296]
[2024-11-14 05:40:18,096 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-14 05:40:18,096 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-14 05:40:18,096 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2024-11-14 05:40:18,097 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-14 05:40:18,097 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-14 05:40:18,097 INFO  L87              Difference]: Start difference. First operand 201 states and 247 transitions. Second operand  has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-14 05:40:18,666 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-14 05:40:18,666 INFO  L93              Difference]: Finished difference Result 289 states and 338 transitions.
[2024-11-14 05:40:18,667 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2024-11-14 05:40:18,667 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18
[2024-11-14 05:40:18,667 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-14 05:40:18,669 INFO  L225             Difference]: With dead ends: 289
[2024-11-14 05:40:18,669 INFO  L226             Difference]: Without dead ends: 287
[2024-11-14 05:40:18,670 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2024-11-14 05:40:18,670 INFO  L432           NwaCegarLoop]: 70 mSDtfsCounter, 216 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-14 05:40:18,671 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 265 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-14 05:40:18,672 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 287 states.
[2024-11-14 05:40:18,681 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 204.
[2024-11-14 05:40:18,681 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 204 states, 150 states have (on average 1.62) internal successors, (243), 199 states have internal predecessors, (243), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-11-14 05:40:18,683 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 249 transitions.
[2024-11-14 05:40:18,683 INFO  L78                 Accepts]: Start accepts. Automaton has 204 states and 249 transitions. Word has length 18
[2024-11-14 05:40:18,683 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-14 05:40:18,683 INFO  L471      AbstractCegarLoop]: Abstraction has 204 states and 249 transitions.
[2024-11-14 05:40:18,684 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-14 05:40:18,684 INFO  L276                IsEmpty]: Start isEmpty. Operand 204 states and 249 transitions.
[2024-11-14 05:40:18,684 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2024-11-14 05:40:18,684 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-14 05:40:18,684 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-14 05:40:18,708 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0
[2024-11-14 05:40:18,885 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11
[2024-11-14 05:40:18,885 INFO  L396      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] ===
[2024-11-14 05:40:18,886 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 05:40:18,886 INFO  L85        PathProgramCache]: Analyzing trace with hash -532307266, now seen corresponding path program 1 times
[2024-11-14 05:40:18,886 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2024-11-14 05:40:18,886 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786069379]
[2024-11-14 05:40:18,886 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:40:18,887 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 05:40:18,906 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-14 05:40:18,911 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [167342197]
[2024-11-14 05:40:18,911 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:40:18,911 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-14 05:40:18,911 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3
[2024-11-14 05:40:18,914 INFO  L229       MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-14 05:40:18,919 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2024-11-14 05:40:18,966 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 05:40:18,968 INFO  L255         TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-14 05:40:18,969 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-14 05:40:19,107 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 05:40:19,109 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-14 05:40:19,109 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2024-11-14 05:40:19,109 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786069379]
[2024-11-14 05:40:19,110 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-11-14 05:40:19,110 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [167342197]
[2024-11-14 05:40:19,110 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [167342197] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-14 05:40:19,110 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-14 05:40:19,110 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-14 05:40:19,110 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821370506]
[2024-11-14 05:40:19,110 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-14 05:40:19,111 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-14 05:40:19,111 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2024-11-14 05:40:19,111 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-14 05:40:19,112 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-14 05:40:19,112 INFO  L87              Difference]: Start difference. First operand 204 states and 249 transitions. Second operand  has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-14 05:40:19,601 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-14 05:40:19,601 INFO  L93              Difference]: Finished difference Result 288 states and 336 transitions.
[2024-11-14 05:40:19,601 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2024-11-14 05:40:19,602 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19
[2024-11-14 05:40:19,602 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-14 05:40:19,603 INFO  L225             Difference]: With dead ends: 288
[2024-11-14 05:40:19,603 INFO  L226             Difference]: Without dead ends: 286
[2024-11-14 05:40:19,604 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2024-11-14 05:40:19,604 INFO  L432           NwaCegarLoop]: 72 mSDtfsCounter, 214 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-14 05:40:19,605 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 268 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-14 05:40:19,606 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 286 states.
[2024-11-14 05:40:19,614 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 205.
[2024-11-14 05:40:19,615 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 205 states, 151 states have (on average 1.609271523178808) internal successors, (243), 200 states have internal predecessors, (243), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-11-14 05:40:19,617 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 249 transitions.
[2024-11-14 05:40:19,617 INFO  L78                 Accepts]: Start accepts. Automaton has 205 states and 249 transitions. Word has length 19
[2024-11-14 05:40:19,617 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-14 05:40:19,618 INFO  L471      AbstractCegarLoop]: Abstraction has 205 states and 249 transitions.
[2024-11-14 05:40:19,618 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-14 05:40:19,618 INFO  L276                IsEmpty]: Start isEmpty. Operand 205 states and 249 transitions.
[2024-11-14 05:40:19,618 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2024-11-14 05:40:19,618 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-14 05:40:19,619 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-14 05:40:19,643 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0
[2024-11-14 05:40:19,825 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-14 05:40:19,826 INFO  L396      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] ===
[2024-11-14 05:40:19,827 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 05:40:19,827 INFO  L85        PathProgramCache]: Analyzing trace with hash 678344013, now seen corresponding path program 1 times
[2024-11-14 05:40:19,827 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2024-11-14 05:40:19,827 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190366045]
[2024-11-14 05:40:19,828 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:40:19,828 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 05:40:19,863 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-14 05:40:19,868 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1423196115]
[2024-11-14 05:40:19,868 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:40:19,872 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-14 05:40:19,873 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3
[2024-11-14 05:40:19,875 INFO  L229       MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-14 05:40:19,885 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2024-11-14 05:40:19,969 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 05:40:19,980 INFO  L255         TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-11-14 05:40:19,985 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-14 05:40:20,262 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 05:40:20,263 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-14 05:40:20,263 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2024-11-14 05:40:20,263 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190366045]
[2024-11-14 05:40:20,263 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-11-14 05:40:20,263 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1423196115]
[2024-11-14 05:40:20,263 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1423196115] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-14 05:40:20,264 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-14 05:40:20,264 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-14 05:40:20,264 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820406533]
[2024-11-14 05:40:20,264 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-14 05:40:20,264 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-14 05:40:20,265 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2024-11-14 05:40:20,265 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-14 05:40:20,265 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-11-14 05:40:20,265 INFO  L87              Difference]: Start difference. First operand 205 states and 249 transitions. Second operand  has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-14 05:40:20,774 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-14 05:40:20,775 INFO  L93              Difference]: Finished difference Result 276 states and 334 transitions.
[2024-11-14 05:40:20,775 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-11-14 05:40:20,775 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2024-11-14 05:40:20,776 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-14 05:40:20,777 INFO  L225             Difference]: With dead ends: 276
[2024-11-14 05:40:20,777 INFO  L226             Difference]: Without dead ends: 274
[2024-11-14 05:40:20,779 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72
[2024-11-14 05:40:20,780 INFO  L432           NwaCegarLoop]: 57 mSDtfsCounter, 284 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-14 05:40:20,781 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 194 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-14 05:40:20,782 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 274 states.
[2024-11-14 05:40:20,791 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 206.
[2024-11-14 05:40:20,792 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 206 states, 152 states have (on average 1.5986842105263157) internal successors, (243), 201 states have internal predecessors, (243), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-11-14 05:40:20,793 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 249 transitions.
[2024-11-14 05:40:20,793 INFO  L78                 Accepts]: Start accepts. Automaton has 206 states and 249 transitions. Word has length 20
[2024-11-14 05:40:20,794 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-14 05:40:20,794 INFO  L471      AbstractCegarLoop]: Abstraction has 206 states and 249 transitions.
[2024-11-14 05:40:20,794 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-14 05:40:20,794 INFO  L276                IsEmpty]: Start isEmpty. Operand 206 states and 249 transitions.
[2024-11-14 05:40:20,795 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2024-11-14 05:40:20,795 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-14 05:40:20,795 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-14 05:40:20,819 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0
[2024-11-14 05:40:20,996 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13
[2024-11-14 05:40:20,996 INFO  L396      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] ===
[2024-11-14 05:40:20,996 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 05:40:20,996 INFO  L85        PathProgramCache]: Analyzing trace with hash -446172000, now seen corresponding path program 1 times
[2024-11-14 05:40:20,997 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2024-11-14 05:40:20,997 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942949666]
[2024-11-14 05:40:20,997 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:40:20,997 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 05:40:21,014 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-14 05:40:21,014 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [707493921]
[2024-11-14 05:40:21,015 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:40:21,015 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-14 05:40:21,015 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3
[2024-11-14 05:40:21,019 INFO  L229       MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-14 05:40:21,021 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process
[2024-11-14 05:40:21,066 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 05:40:21,067 INFO  L255         TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-11-14 05:40:21,068 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-14 05:40:21,305 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 05:40:21,305 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-14 05:40:21,305 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2024-11-14 05:40:21,306 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942949666]
[2024-11-14 05:40:21,306 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-11-14 05:40:21,306 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [707493921]
[2024-11-14 05:40:21,306 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [707493921] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-14 05:40:21,306 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-14 05:40:21,306 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-14 05:40:21,306 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766463242]
[2024-11-14 05:40:21,307 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-14 05:40:21,307 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-14 05:40:21,307 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2024-11-14 05:40:21,308 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-14 05:40:21,308 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-11-14 05:40:21,308 INFO  L87              Difference]: Start difference. First operand 206 states and 249 transitions. Second operand  has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-14 05:40:21,949 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-14 05:40:21,950 INFO  L93              Difference]: Finished difference Result 276 states and 332 transitions.
[2024-11-14 05:40:21,950 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-11-14 05:40:21,951 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21
[2024-11-14 05:40:21,951 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-14 05:40:21,952 INFO  L225             Difference]: With dead ends: 276
[2024-11-14 05:40:21,952 INFO  L226             Difference]: Without dead ends: 274
[2024-11-14 05:40:21,953 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72
[2024-11-14 05:40:21,953 INFO  L432           NwaCegarLoop]: 57 mSDtfsCounter, 283 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-14 05:40:21,953 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 193 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-14 05:40:21,955 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 274 states.
[2024-11-14 05:40:21,963 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 207.
[2024-11-14 05:40:21,963 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 207 states, 153 states have (on average 1.588235294117647) internal successors, (243), 202 states have internal predecessors, (243), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-11-14 05:40:21,965 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 249 transitions.
[2024-11-14 05:40:21,965 INFO  L78                 Accepts]: Start accepts. Automaton has 207 states and 249 transitions. Word has length 21
[2024-11-14 05:40:21,965 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-14 05:40:21,966 INFO  L471      AbstractCegarLoop]: Abstraction has 207 states and 249 transitions.
[2024-11-14 05:40:21,966 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-14 05:40:21,966 INFO  L276                IsEmpty]: Start isEmpty. Operand 207 states and 249 transitions.
[2024-11-14 05:40:21,966 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2024-11-14 05:40:21,967 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-14 05:40:21,967 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-14 05:40:21,992 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0
[2024-11-14 05:40:22,170 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14
[2024-11-14 05:40:22,171 INFO  L396      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] ===
[2024-11-14 05:40:22,171 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 05:40:22,172 INFO  L85        PathProgramCache]: Analyzing trace with hash 1013807633, now seen corresponding path program 1 times
[2024-11-14 05:40:22,172 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2024-11-14 05:40:22,172 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982056121]
[2024-11-14 05:40:22,172 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:40:22,172 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 05:40:22,186 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-14 05:40:22,187 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1287531059]
[2024-11-14 05:40:22,187 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:40:22,187 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-14 05:40:22,187 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3
[2024-11-14 05:40:22,189 INFO  L229       MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-14 05:40:22,192 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process
[2024-11-14 05:40:22,244 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 05:40:22,247 INFO  L255         TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-11-14 05:40:22,249 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-14 05:40:22,555 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 05:40:22,555 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-14 05:40:22,556 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2024-11-14 05:40:22,556 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982056121]
[2024-11-14 05:40:22,556 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-11-14 05:40:22,556 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1287531059]
[2024-11-14 05:40:22,556 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1287531059] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-14 05:40:22,556 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-14 05:40:22,556 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-14 05:40:22,557 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874977069]
[2024-11-14 05:40:22,557 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-14 05:40:22,557 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-14 05:40:22,557 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2024-11-14 05:40:22,558 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-14 05:40:22,558 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-11-14 05:40:22,558 INFO  L87              Difference]: Start difference. First operand 207 states and 249 transitions. Second operand  has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-14 05:40:23,205 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-14 05:40:23,205 INFO  L93              Difference]: Finished difference Result 268 states and 330 transitions.
[2024-11-14 05:40:23,206 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-11-14 05:40:23,206 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24
[2024-11-14 05:40:23,206 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-14 05:40:23,208 INFO  L225             Difference]: With dead ends: 268
[2024-11-14 05:40:23,208 INFO  L226             Difference]: Without dead ends: 264
[2024-11-14 05:40:23,209 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72
[2024-11-14 05:40:23,209 INFO  L432           NwaCegarLoop]: 39 mSDtfsCounter, 333 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2024-11-14 05:40:23,210 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 127 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2024-11-14 05:40:23,211 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 264 states.
[2024-11-14 05:40:23,248 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 208.
[2024-11-14 05:40:23,250 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 208 states, 156 states have (on average 1.5576923076923077) internal successors, (243), 203 states have internal predecessors, (243), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-11-14 05:40:23,251 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 249 transitions.
[2024-11-14 05:40:23,251 INFO  L78                 Accepts]: Start accepts. Automaton has 208 states and 249 transitions. Word has length 24
[2024-11-14 05:40:23,252 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-14 05:40:23,252 INFO  L471      AbstractCegarLoop]: Abstraction has 208 states and 249 transitions.
[2024-11-14 05:40:23,252 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-14 05:40:23,252 INFO  L276                IsEmpty]: Start isEmpty. Operand 208 states and 249 transitions.
[2024-11-14 05:40:23,253 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2024-11-14 05:40:23,254 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-14 05:40:23,254 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-14 05:40:23,279 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0
[2024-11-14 05:40:23,454 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15
[2024-11-14 05:40:23,455 INFO  L396      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] ===
[2024-11-14 05:40:23,455 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 05:40:23,455 INFO  L85        PathProgramCache]: Analyzing trace with hash 1363265636, now seen corresponding path program 1 times
[2024-11-14 05:40:23,455 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2024-11-14 05:40:23,456 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968694819]
[2024-11-14 05:40:23,456 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:40:23,456 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 05:40:23,480 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-14 05:40:23,480 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1434736718]
[2024-11-14 05:40:23,481 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:40:23,481 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-14 05:40:23,481 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3
[2024-11-14 05:40:23,487 INFO  L229       MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-14 05:40:23,490 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process
[2024-11-14 05:40:23,546 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 05:40:23,547 INFO  L255         TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-11-14 05:40:23,549 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-14 05:40:23,841 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 05:40:23,841 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-14 05:40:23,841 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2024-11-14 05:40:23,841 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968694819]
[2024-11-14 05:40:23,842 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-11-14 05:40:23,842 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1434736718]
[2024-11-14 05:40:23,842 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1434736718] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-14 05:40:23,842 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-14 05:40:23,842 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-14 05:40:23,842 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84677215]
[2024-11-14 05:40:23,843 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-14 05:40:23,843 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-14 05:40:23,843 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2024-11-14 05:40:23,844 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-14 05:40:23,844 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-11-14 05:40:23,844 INFO  L87              Difference]: Start difference. First operand 208 states and 249 transitions. Second operand  has 6 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-14 05:40:24,404 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-14 05:40:24,405 INFO  L93              Difference]: Finished difference Result 266 states and 324 transitions.
[2024-11-14 05:40:24,405 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-11-14 05:40:24,405 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25
[2024-11-14 05:40:24,405 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-14 05:40:24,407 INFO  L225             Difference]: With dead ends: 266
[2024-11-14 05:40:24,407 INFO  L226             Difference]: Without dead ends: 262
[2024-11-14 05:40:24,407 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72
[2024-11-14 05:40:24,408 INFO  L432           NwaCegarLoop]: 39 mSDtfsCounter, 257 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-14 05:40:24,408 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 129 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-14 05:40:24,409 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 262 states.
[2024-11-14 05:40:24,415 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 207.
[2024-11-14 05:40:24,416 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 207 states, 157 states have (on average 1.535031847133758) internal successors, (241), 202 states have internal predecessors, (241), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-11-14 05:40:24,417 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 247 transitions.
[2024-11-14 05:40:24,417 INFO  L78                 Accepts]: Start accepts. Automaton has 207 states and 247 transitions. Word has length 25
[2024-11-14 05:40:24,418 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-14 05:40:24,418 INFO  L471      AbstractCegarLoop]: Abstraction has 207 states and 247 transitions.
[2024-11-14 05:40:24,418 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-14 05:40:24,418 INFO  L276                IsEmpty]: Start isEmpty. Operand 207 states and 247 transitions.
[2024-11-14 05:40:24,418 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2024-11-14 05:40:24,419 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-14 05:40:24,420 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-14 05:40:24,443 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0
[2024-11-14 05:40:24,620 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16
[2024-11-14 05:40:24,621 INFO  L396      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] ===
[2024-11-14 05:40:24,621 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 05:40:24,621 INFO  L85        PathProgramCache]: Analyzing trace with hash -688438157, now seen corresponding path program 1 times
[2024-11-14 05:40:24,621 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2024-11-14 05:40:24,622 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706736075]
[2024-11-14 05:40:24,622 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:40:24,622 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 05:40:24,640 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 05:40:24,755 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 05:40:24,756 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2024-11-14 05:40:24,756 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706736075]
[2024-11-14 05:40:24,756 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706736075] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-14 05:40:24,756 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-14 05:40:24,756 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-14 05:40:24,757 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106274315]
[2024-11-14 05:40:24,757 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-14 05:40:24,757 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-14 05:40:24,759 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2024-11-14 05:40:24,759 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-14 05:40:24,759 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-14 05:40:24,760 INFO  L87              Difference]: Start difference. First operand 207 states and 247 transitions. Second operand  has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-14 05:40:25,251 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-14 05:40:25,252 INFO  L93              Difference]: Finished difference Result 232 states and 278 transitions.
[2024-11-14 05:40:25,252 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-14 05:40:25,253 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26
[2024-11-14 05:40:25,253 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-14 05:40:25,254 INFO  L225             Difference]: With dead ends: 232
[2024-11-14 05:40:25,254 INFO  L226             Difference]: Without dead ends: 230
[2024-11-14 05:40:25,255 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-14 05:40:25,255 INFO  L432           NwaCegarLoop]: 70 mSDtfsCounter, 92 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-14 05:40:25,256 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 143 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-14 05:40:25,257 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 230 states.
[2024-11-14 05:40:25,265 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 208.
[2024-11-14 05:40:25,266 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 208 states, 158 states have (on average 1.5253164556962024) internal successors, (241), 203 states have internal predecessors, (241), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-11-14 05:40:25,267 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 247 transitions.
[2024-11-14 05:40:25,267 INFO  L78                 Accepts]: Start accepts. Automaton has 208 states and 247 transitions. Word has length 26
[2024-11-14 05:40:25,268 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-14 05:40:25,268 INFO  L471      AbstractCegarLoop]: Abstraction has 208 states and 247 transitions.
[2024-11-14 05:40:25,268 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-14 05:40:25,268 INFO  L276                IsEmpty]: Start isEmpty. Operand 208 states and 247 transitions.
[2024-11-14 05:40:25,269 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2024-11-14 05:40:25,269 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-14 05:40:25,269 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-14 05:40:25,269 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2024-11-14 05:40:25,270 INFO  L396      AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] ===
[2024-11-14 05:40:25,270 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 05:40:25,270 INFO  L85        PathProgramCache]: Analyzing trace with hash 133253702, now seen corresponding path program 1 times
[2024-11-14 05:40:25,270 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2024-11-14 05:40:25,271 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719304233]
[2024-11-14 05:40:25,271 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:40:25,271 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 05:40:25,283 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 05:40:25,350 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 05:40:25,350 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2024-11-14 05:40:25,350 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719304233]
[2024-11-14 05:40:25,351 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719304233] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-14 05:40:25,351 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-14 05:40:25,351 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-14 05:40:25,351 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119449507]
[2024-11-14 05:40:25,351 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-14 05:40:25,352 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-14 05:40:25,352 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2024-11-14 05:40:25,352 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-14 05:40:25,352 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-14 05:40:25,352 INFO  L87              Difference]: Start difference. First operand 208 states and 247 transitions. Second operand  has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-14 05:40:25,823 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-14 05:40:25,823 INFO  L93              Difference]: Finished difference Result 226 states and 270 transitions.
[2024-11-14 05:40:25,823 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-14 05:40:25,824 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27
[2024-11-14 05:40:25,824 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-14 05:40:25,825 INFO  L225             Difference]: With dead ends: 226
[2024-11-14 05:40:25,825 INFO  L226             Difference]: Without dead ends: 224
[2024-11-14 05:40:25,825 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-14 05:40:25,826 INFO  L432           NwaCegarLoop]: 72 mSDtfsCounter, 67 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-14 05:40:25,826 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 147 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-14 05:40:25,828 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 224 states.
[2024-11-14 05:40:25,836 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 209.
[2024-11-14 05:40:25,837 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 209 states, 159 states have (on average 1.5157232704402517) internal successors, (241), 204 states have internal predecessors, (241), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-11-14 05:40:25,838 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 247 transitions.
[2024-11-14 05:40:25,839 INFO  L78                 Accepts]: Start accepts. Automaton has 209 states and 247 transitions. Word has length 27
[2024-11-14 05:40:25,839 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-14 05:40:25,839 INFO  L471      AbstractCegarLoop]: Abstraction has 209 states and 247 transitions.
[2024-11-14 05:40:25,839 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-14 05:40:25,840 INFO  L276                IsEmpty]: Start isEmpty. Operand 209 states and 247 transitions.
[2024-11-14 05:40:25,840 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 36
[2024-11-14 05:40:25,840 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-14 05:40:25,841 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-14 05:40:25,841 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2024-11-14 05:40:25,841 INFO  L396      AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] ===
[2024-11-14 05:40:25,842 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 05:40:25,842 INFO  L85        PathProgramCache]: Analyzing trace with hash -547019888, now seen corresponding path program 1 times
[2024-11-14 05:40:25,842 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2024-11-14 05:40:25,842 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650163441]
[2024-11-14 05:40:25,842 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:40:25,842 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 05:40:25,857 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 05:40:25,940 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 05:40:25,940 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2024-11-14 05:40:25,940 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650163441]
[2024-11-14 05:40:25,941 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650163441] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-14 05:40:25,941 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-14 05:40:25,941 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-14 05:40:25,941 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247147412]
[2024-11-14 05:40:25,941 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-14 05:40:25,942 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-14 05:40:25,942 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2024-11-14 05:40:25,943 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-14 05:40:25,943 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-14 05:40:25,943 INFO  L87              Difference]: Start difference. First operand 209 states and 247 transitions. Second operand  has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-14 05:40:26,282 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-14 05:40:26,282 INFO  L93              Difference]: Finished difference Result 225 states and 268 transitions.
[2024-11-14 05:40:26,282 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-14 05:40:26,283 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35
[2024-11-14 05:40:26,283 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-14 05:40:26,284 INFO  L225             Difference]: With dead ends: 225
[2024-11-14 05:40:26,284 INFO  L226             Difference]: Without dead ends: 224
[2024-11-14 05:40:26,284 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-14 05:40:26,285 INFO  L432           NwaCegarLoop]: 50 mSDtfsCounter, 172 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-14 05:40:26,285 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 100 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-14 05:40:26,286 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 224 states.
[2024-11-14 05:40:26,296 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 213.
[2024-11-14 05:40:26,296 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 213 states, 163 states have (on average 1.50920245398773) internal successors, (246), 208 states have internal predecessors, (246), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-11-14 05:40:26,298 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 252 transitions.
[2024-11-14 05:40:26,298 INFO  L78                 Accepts]: Start accepts. Automaton has 213 states and 252 transitions. Word has length 35
[2024-11-14 05:40:26,300 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-14 05:40:26,300 INFO  L471      AbstractCegarLoop]: Abstraction has 213 states and 252 transitions.
[2024-11-14 05:40:26,300 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-14 05:40:26,300 INFO  L276                IsEmpty]: Start isEmpty. Operand 213 states and 252 transitions.
[2024-11-14 05:40:26,301 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 37
[2024-11-14 05:40:26,301 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-14 05:40:26,301 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-14 05:40:26,301 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19
[2024-11-14 05:40:26,302 INFO  L396      AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] ===
[2024-11-14 05:40:26,302 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 05:40:26,302 INFO  L85        PathProgramCache]: Analyzing trace with hash 222252762, now seen corresponding path program 1 times
[2024-11-14 05:40:26,302 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2024-11-14 05:40:26,303 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427362336]
[2024-11-14 05:40:26,303 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:40:26,303 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 05:40:26,315 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 05:40:26,409 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 05:40:26,409 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2024-11-14 05:40:26,409 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427362336]
[2024-11-14 05:40:26,409 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427362336] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-14 05:40:26,410 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-14 05:40:26,410 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-14 05:40:26,410 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439615239]
[2024-11-14 05:40:26,410 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-14 05:40:26,411 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-14 05:40:26,411 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2024-11-14 05:40:26,412 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-14 05:40:26,412 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-14 05:40:26,412 INFO  L87              Difference]: Start difference. First operand 213 states and 252 transitions. Second operand  has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-14 05:40:26,559 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-14 05:40:26,559 INFO  L93              Difference]: Finished difference Result 213 states and 252 transitions.
[2024-11-14 05:40:26,560 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-14 05:40:26,560 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36
[2024-11-14 05:40:26,560 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-14 05:40:26,561 INFO  L225             Difference]: With dead ends: 213
[2024-11-14 05:40:26,561 INFO  L226             Difference]: Without dead ends: 212
[2024-11-14 05:40:26,562 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-14 05:40:26,562 INFO  L432           NwaCegarLoop]: 66 mSDtfsCounter, 68 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-14 05:40:26,563 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 130 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-14 05:40:26,563 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 212 states.
[2024-11-14 05:40:26,572 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212.
[2024-11-14 05:40:26,572 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 212 states, 163 states have (on average 1.4969325153374233) internal successors, (244), 207 states have internal predecessors, (244), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-11-14 05:40:26,595 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 250 transitions.
[2024-11-14 05:40:26,595 INFO  L78                 Accepts]: Start accepts. Automaton has 212 states and 250 transitions. Word has length 36
[2024-11-14 05:40:26,595 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-14 05:40:26,595 INFO  L471      AbstractCegarLoop]: Abstraction has 212 states and 250 transitions.
[2024-11-14 05:40:26,596 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-14 05:40:26,596 INFO  L276                IsEmpty]: Start isEmpty. Operand 212 states and 250 transitions.
[2024-11-14 05:40:26,596 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 38
[2024-11-14 05:40:26,597 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-14 05:40:26,600 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-14 05:40:26,600 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20
[2024-11-14 05:40:26,600 INFO  L396      AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] ===
[2024-11-14 05:40:26,601 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 05:40:26,601 INFO  L85        PathProgramCache]: Analyzing trace with hash -1404264302, now seen corresponding path program 1 times
[2024-11-14 05:40:26,601 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2024-11-14 05:40:26,601 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134481214]
[2024-11-14 05:40:26,601 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:40:26,601 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 05:40:26,616 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 05:40:26,712 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 05:40:26,712 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2024-11-14 05:40:26,712 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134481214]
[2024-11-14 05:40:26,712 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134481214] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-14 05:40:26,712 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-14 05:40:26,713 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-14 05:40:26,713 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082689241]
[2024-11-14 05:40:26,713 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-14 05:40:26,713 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-14 05:40:26,714 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2024-11-14 05:40:26,715 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-14 05:40:26,715 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-14 05:40:26,715 INFO  L87              Difference]: Start difference. First operand 212 states and 250 transitions. Second operand  has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-14 05:40:27,107 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-14 05:40:27,109 INFO  L93              Difference]: Finished difference Result 212 states and 250 transitions.
[2024-11-14 05:40:27,110 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-14 05:40:27,110 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 37
[2024-11-14 05:40:27,110 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-14 05:40:27,112 INFO  L225             Difference]: With dead ends: 212
[2024-11-14 05:40:27,112 INFO  L226             Difference]: Without dead ends: 211
[2024-11-14 05:40:27,112 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-14 05:40:27,115 INFO  L432           NwaCegarLoop]: 52 mSDtfsCounter, 63 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-14 05:40:27,115 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 102 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-14 05:40:27,117 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 211 states.
[2024-11-14 05:40:27,126 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211.
[2024-11-14 05:40:27,127 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 211 states, 163 states have (on average 1.49079754601227) internal successors, (243), 206 states have internal predecessors, (243), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-11-14 05:40:27,128 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 249 transitions.
[2024-11-14 05:40:27,129 INFO  L78                 Accepts]: Start accepts. Automaton has 211 states and 249 transitions. Word has length 37
[2024-11-14 05:40:27,129 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-14 05:40:27,129 INFO  L471      AbstractCegarLoop]: Abstraction has 211 states and 249 transitions.
[2024-11-14 05:40:27,130 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-14 05:40:27,130 INFO  L276                IsEmpty]: Start isEmpty. Operand 211 states and 249 transitions.
[2024-11-14 05:40:27,130 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 39
[2024-11-14 05:40:27,131 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-14 05:40:27,131 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-14 05:40:27,131 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21
[2024-11-14 05:40:27,131 INFO  L396      AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] ===
[2024-11-14 05:40:27,132 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 05:40:27,132 INFO  L85        PathProgramCache]: Analyzing trace with hash -1163456484, now seen corresponding path program 1 times
[2024-11-14 05:40:27,132 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2024-11-14 05:40:27,132 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136448016]
[2024-11-14 05:40:27,132 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:40:27,132 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 05:40:27,145 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 05:40:27,210 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 05:40:27,210 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2024-11-14 05:40:27,210 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136448016]
[2024-11-14 05:40:27,210 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136448016] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-14 05:40:27,211 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-14 05:40:27,211 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-14 05:40:27,211 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946666876]
[2024-11-14 05:40:27,211 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-14 05:40:27,211 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-14 05:40:27,212 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2024-11-14 05:40:27,212 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-14 05:40:27,212 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-14 05:40:27,212 INFO  L87              Difference]: Start difference. First operand 211 states and 249 transitions. Second operand  has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-14 05:40:27,338 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-14 05:40:27,338 INFO  L93              Difference]: Finished difference Result 231 states and 271 transitions.
[2024-11-14 05:40:27,339 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-14 05:40:27,339 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38
[2024-11-14 05:40:27,339 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-14 05:40:27,340 INFO  L225             Difference]: With dead ends: 231
[2024-11-14 05:40:27,340 INFO  L226             Difference]: Without dead ends: 229
[2024-11-14 05:40:27,341 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-14 05:40:27,341 INFO  L432           NwaCegarLoop]: 102 mSDtfsCounter, 17 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-14 05:40:27,342 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 297 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-14 05:40:27,343 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 229 states.
[2024-11-14 05:40:27,352 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 226.
[2024-11-14 05:40:27,353 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 226 states, 178 states have (on average 1.4662921348314606) internal successors, (261), 221 states have internal predecessors, (261), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-11-14 05:40:27,355 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 267 transitions.
[2024-11-14 05:40:27,355 INFO  L78                 Accepts]: Start accepts. Automaton has 226 states and 267 transitions. Word has length 38
[2024-11-14 05:40:27,355 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-14 05:40:27,356 INFO  L471      AbstractCegarLoop]: Abstraction has 226 states and 267 transitions.
[2024-11-14 05:40:27,356 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-14 05:40:27,356 INFO  L276                IsEmpty]: Start isEmpty. Operand 226 states and 267 transitions.
[2024-11-14 05:40:27,356 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 39
[2024-11-14 05:40:27,357 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-14 05:40:27,357 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-14 05:40:27,357 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22
[2024-11-14 05:40:27,357 INFO  L396      AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] ===
[2024-11-14 05:40:27,358 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 05:40:27,358 INFO  L85        PathProgramCache]: Analyzing trace with hash -582520282, now seen corresponding path program 1 times
[2024-11-14 05:40:27,358 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2024-11-14 05:40:27,358 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442793875]
[2024-11-14 05:40:27,358 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:40:27,358 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 05:40:27,370 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 05:40:27,483 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 05:40:27,483 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2024-11-14 05:40:27,483 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442793875]
[2024-11-14 05:40:27,483 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442793875] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-14 05:40:27,483 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-14 05:40:27,484 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-14 05:40:27,484 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859668644]
[2024-11-14 05:40:27,484 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-14 05:40:27,484 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-14 05:40:27,484 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2024-11-14 05:40:27,485 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-14 05:40:27,485 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-14 05:40:27,485 INFO  L87              Difference]: Start difference. First operand 226 states and 267 transitions. Second operand  has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-14 05:40:27,860 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-14 05:40:27,860 INFO  L93              Difference]: Finished difference Result 227 states and 267 transitions.
[2024-11-14 05:40:27,861 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-14 05:40:27,861 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38
[2024-11-14 05:40:27,861 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-14 05:40:27,863 INFO  L225             Difference]: With dead ends: 227
[2024-11-14 05:40:27,863 INFO  L226             Difference]: Without dead ends: 226
[2024-11-14 05:40:27,863 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-14 05:40:27,864 INFO  L432           NwaCegarLoop]: 56 mSDtfsCounter, 151 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-14 05:40:27,864 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 147 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-14 05:40:27,865 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 226 states.
[2024-11-14 05:40:27,901 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226.
[2024-11-14 05:40:27,902 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 226 states, 178 states have (on average 1.4606741573033708) internal successors, (260), 221 states have internal predecessors, (260), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-11-14 05:40:27,904 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 266 transitions.
[2024-11-14 05:40:27,904 INFO  L78                 Accepts]: Start accepts. Automaton has 226 states and 266 transitions. Word has length 38
[2024-11-14 05:40:27,904 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-14 05:40:27,904 INFO  L471      AbstractCegarLoop]: Abstraction has 226 states and 266 transitions.
[2024-11-14 05:40:27,904 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-14 05:40:27,905 INFO  L276                IsEmpty]: Start isEmpty. Operand 226 states and 266 transitions.
[2024-11-14 05:40:27,905 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 40
[2024-11-14 05:40:27,905 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-14 05:40:27,905 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-14 05:40:27,906 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23
[2024-11-14 05:40:27,906 INFO  L396      AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] ===
[2024-11-14 05:40:27,906 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 05:40:27,906 INFO  L85        PathProgramCache]: Analyzing trace with hash -878259436, now seen corresponding path program 1 times
[2024-11-14 05:40:27,907 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2024-11-14 05:40:27,907 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934975435]
[2024-11-14 05:40:27,907 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:40:27,907 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 05:40:27,919 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 05:40:28,010 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 05:40:28,010 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2024-11-14 05:40:28,010 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934975435]
[2024-11-14 05:40:28,010 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934975435] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-14 05:40:28,011 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-14 05:40:28,011 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-14 05:40:28,011 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111640943]
[2024-11-14 05:40:28,011 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-14 05:40:28,011 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-14 05:40:28,012 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2024-11-14 05:40:28,012 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-14 05:40:28,012 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-14 05:40:28,013 INFO  L87              Difference]: Start difference. First operand 226 states and 266 transitions. Second operand  has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-14 05:40:28,090 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-14 05:40:28,090 INFO  L93              Difference]: Finished difference Result 268 states and 280 transitions.
[2024-11-14 05:40:28,090 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-14 05:40:28,091 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39
[2024-11-14 05:40:28,091 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-14 05:40:28,092 INFO  L225             Difference]: With dead ends: 268
[2024-11-14 05:40:28,093 INFO  L226             Difference]: Without dead ends: 266
[2024-11-14 05:40:28,093 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-14 05:40:28,094 INFO  L432           NwaCegarLoop]: 101 mSDtfsCounter, 62 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-14 05:40:28,094 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 294 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-14 05:40:28,095 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 266 states.
[2024-11-14 05:40:28,106 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 234.
[2024-11-14 05:40:28,107 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 234 states, 186 states have (on average 1.435483870967742) internal successors, (267), 229 states have internal predecessors, (267), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-11-14 05:40:28,111 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 273 transitions.
[2024-11-14 05:40:28,111 INFO  L78                 Accepts]: Start accepts. Automaton has 234 states and 273 transitions. Word has length 39
[2024-11-14 05:40:28,111 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-14 05:40:28,111 INFO  L471      AbstractCegarLoop]: Abstraction has 234 states and 273 transitions.
[2024-11-14 05:40:28,112 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-14 05:40:28,112 INFO  L276                IsEmpty]: Start isEmpty. Operand 234 states and 273 transitions.
[2024-11-14 05:40:28,112 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 42
[2024-11-14 05:40:28,112 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-14 05:40:28,112 INFO  L215           NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-14 05:40:28,112 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24
[2024-11-14 05:40:28,113 INFO  L396      AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] ===
[2024-11-14 05:40:28,113 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 05:40:28,113 INFO  L85        PathProgramCache]: Analyzing trace with hash -145909784, now seen corresponding path program 1 times
[2024-11-14 05:40:28,113 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2024-11-14 05:40:28,113 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017722147]
[2024-11-14 05:40:28,113 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:40:28,113 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 05:40:28,128 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 05:40:28,269 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 05:40:28,269 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2024-11-14 05:40:28,269 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017722147]
[2024-11-14 05:40:28,270 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017722147] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-14 05:40:28,270 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1170405557]
[2024-11-14 05:40:28,270 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:40:28,270 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-14 05:40:28,270 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3
[2024-11-14 05:40:28,273 INFO  L229       MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-14 05:40:28,276 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process
[2024-11-14 05:40:28,340 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 05:40:28,341 INFO  L255         TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-14 05:40:28,343 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-14 05:40:28,467 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 05:40:28,467 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-14 05:40:28,467 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1170405557] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-14 05:40:28,467 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-14 05:40:28,468 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8
[2024-11-14 05:40:28,468 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123555370]
[2024-11-14 05:40:28,468 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-14 05:40:28,468 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-14 05:40:28,468 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2024-11-14 05:40:28,469 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-14 05:40:28,469 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72
[2024-11-14 05:40:28,470 INFO  L87              Difference]: Start difference. First operand 234 states and 273 transitions. Second operand  has 6 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-14 05:40:28,534 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-14 05:40:28,534 INFO  L93              Difference]: Finished difference Result 234 states and 273 transitions.
[2024-11-14 05:40:28,535 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2024-11-14 05:40:28,535 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 41
[2024-11-14 05:40:28,535 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-14 05:40:28,536 INFO  L225             Difference]: With dead ends: 234
[2024-11-14 05:40:28,536 INFO  L226             Difference]: Without dead ends: 233
[2024-11-14 05:40:28,537 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132
[2024-11-14 05:40:28,537 INFO  L432           NwaCegarLoop]: 106 mSDtfsCounter, 82 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-14 05:40:28,538 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 216 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-14 05:40:28,542 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 233 states.
[2024-11-14 05:40:28,558 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233.
[2024-11-14 05:40:28,560 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 233 states, 186 states have (on average 1.424731182795699) internal successors, (265), 228 states have internal predecessors, (265), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-11-14 05:40:28,561 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 271 transitions.
[2024-11-14 05:40:28,561 INFO  L78                 Accepts]: Start accepts. Automaton has 233 states and 271 transitions. Word has length 41
[2024-11-14 05:40:28,562 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-14 05:40:28,562 INFO  L471      AbstractCegarLoop]: Abstraction has 233 states and 271 transitions.
[2024-11-14 05:40:28,562 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-14 05:40:28,564 INFO  L276                IsEmpty]: Start isEmpty. Operand 233 states and 271 transitions.
[2024-11-14 05:40:28,564 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 43
[2024-11-14 05:40:28,565 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-14 05:40:28,565 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-14 05:40:28,589 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0
[2024-11-14 05:40:28,768 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25
[2024-11-14 05:40:28,769 INFO  L396      AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] ===
[2024-11-14 05:40:28,769 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 05:40:28,769 INFO  L85        PathProgramCache]: Analyzing trace with hash -228235960, now seen corresponding path program 1 times
[2024-11-14 05:40:28,769 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2024-11-14 05:40:28,769 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788235516]
[2024-11-14 05:40:28,769 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:40:28,769 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 05:40:28,782 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 05:40:28,883 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 05:40:28,884 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2024-11-14 05:40:28,884 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788235516]
[2024-11-14 05:40:28,884 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788235516] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-14 05:40:28,884 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [136848329]
[2024-11-14 05:40:28,884 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:40:28,884 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-14 05:40:28,884 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3
[2024-11-14 05:40:28,887 INFO  L229       MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-14 05:40:28,890 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process
[2024-11-14 05:40:28,967 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 05:40:28,968 INFO  L255         TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-14 05:40:28,970 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-14 05:40:29,071 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 05:40:29,071 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-14 05:40:29,209 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 05:40:29,209 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [136848329] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-14 05:40:29,209 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [407292261]
[2024-11-14 05:40:29,241 INFO  L159        IcfgInterpreter]: Started Sifa with 40 locations of interest
[2024-11-14 05:40:29,241 INFO  L166        IcfgInterpreter]: Building call graph
[2024-11-14 05:40:29,245 INFO  L171        IcfgInterpreter]: Initial procedures are [ULTIMATE.start]
[2024-11-14 05:40:29,251 INFO  L176        IcfgInterpreter]: Starting interpretation
[2024-11-14 05:40:29,252 INFO  L197        IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs
[2024-11-14 05:40:36,569 INFO  L197        IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 156 for LOIs
[2024-11-14 05:40:36,959 INFO  L180        IcfgInterpreter]: Interpretation finished
[2024-11-14 05:40:57,742 INFO  L133             SifaRunner]: Sifa could not show that error location is unreachable, found '12674#(and (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x~0#1| 9223372036854775807) (= |ULTIMATE.start_main_~xy~0#1| 0) (<= |ULTIMATE.start_main_~X~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~Y~0#1| 2147483648)) (= |ULTIMATE.start_main_~y~0#1| 0) (<= 2147483647 ~counter~0) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~Y~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~X~0#1|) (<= (+ |ULTIMATE.start_main_~v~0#1| 1) (* 2 |ULTIMATE.start_main_~Y~0#1|)) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~v~0#1|)))' at error location
[2024-11-14 05:40:57,742 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED
[2024-11-14 05:40:57,742 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-14 05:40:57,742 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 5] total 12
[2024-11-14 05:40:57,742 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172192710]
[2024-11-14 05:40:57,742 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-14 05:40:57,743 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2024-11-14 05:40:57,743 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2024-11-14 05:40:57,743 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2024-11-14 05:40:57,744 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=1073, Unknown=1, NotChecked=0, Total=1260
[2024-11-14 05:40:57,744 INFO  L87              Difference]: Start difference. First operand 233 states and 271 transitions. Second operand  has 13 states, 12 states have (on average 7.416666666666667) internal successors, (89), 13 states have internal predecessors, (89), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2024-11-14 05:40:59,355 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-14 05:40:59,355 INFO  L93              Difference]: Finished difference Result 642 states and 762 transitions.
[2024-11-14 05:40:59,356 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. 
[2024-11-14 05:40:59,356 INFO  L78                 Accepts]: Start accepts. Automaton has  has 13 states, 12 states have (on average 7.416666666666667) internal successors, (89), 13 states have internal predecessors, (89), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 42
[2024-11-14 05:40:59,356 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-14 05:40:59,359 INFO  L225             Difference]: With dead ends: 642
[2024-11-14 05:40:59,360 INFO  L226             Difference]: Without dead ends: 579
[2024-11-14 05:40:59,361 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 84 SyntacticMatches, 12 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 832 ImplicationChecksByTransitivity, 21.9s TimeCoverageRelationStatistics Valid=249, Invalid=1472, Unknown=1, NotChecked=0, Total=1722
[2024-11-14 05:40:59,361 INFO  L432           NwaCegarLoop]: 113 mSDtfsCounter, 299 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-11-14 05:40:59,362 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 656 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-11-14 05:40:59,363 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 579 states.
[2024-11-14 05:40:59,388 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 405.
[2024-11-14 05:40:59,389 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 405 states, 351 states have (on average 1.4700854700854702) internal successors, (516), 393 states have internal predecessors, (516), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7)
[2024-11-14 05:40:59,392 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 530 transitions.
[2024-11-14 05:40:59,392 INFO  L78                 Accepts]: Start accepts. Automaton has 405 states and 530 transitions. Word has length 42
[2024-11-14 05:40:59,392 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-14 05:40:59,392 INFO  L471      AbstractCegarLoop]: Abstraction has 405 states and 530 transitions.
[2024-11-14 05:40:59,393 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 13 states, 12 states have (on average 7.416666666666667) internal successors, (89), 13 states have internal predecessors, (89), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2024-11-14 05:40:59,393 INFO  L276                IsEmpty]: Start isEmpty. Operand 405 states and 530 transitions.
[2024-11-14 05:40:59,393 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 45
[2024-11-14 05:40:59,393 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-14 05:40:59,393 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-14 05:40:59,419 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0
[2024-11-14 05:40:59,594 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26
[2024-11-14 05:40:59,597 INFO  L396      AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] ===
[2024-11-14 05:40:59,598 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 05:40:59,598 INFO  L85        PathProgramCache]: Analyzing trace with hash -291423766, now seen corresponding path program 1 times
[2024-11-14 05:40:59,598 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2024-11-14 05:40:59,599 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271836943]
[2024-11-14 05:40:59,599 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:40:59,599 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 05:40:59,623 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-14 05:40:59,627 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [564443544]
[2024-11-14 05:40:59,627 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:40:59,627 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-14 05:40:59,627 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3
[2024-11-14 05:40:59,630 INFO  L229       MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-14 05:40:59,632 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process
[2024-11-14 05:40:59,696 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 05:40:59,697 INFO  L255         TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-11-14 05:40:59,699 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-14 05:41:01,043 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 05:41:01,043 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-14 05:41:02,227 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 05:41:02,227 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2024-11-14 05:41:02,227 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271836943]
[2024-11-14 05:41:02,227 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-11-14 05:41:02,227 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [564443544]
[2024-11-14 05:41:02,227 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [564443544] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-14 05:41:02,227 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1080108342]
[2024-11-14 05:41:02,230 INFO  L159        IcfgInterpreter]: Started Sifa with 40 locations of interest
[2024-11-14 05:41:02,230 INFO  L166        IcfgInterpreter]: Building call graph
[2024-11-14 05:41:02,231 INFO  L171        IcfgInterpreter]: Initial procedures are [ULTIMATE.start]
[2024-11-14 05:41:02,231 INFO  L176        IcfgInterpreter]: Starting interpretation
[2024-11-14 05:41:02,231 INFO  L197        IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs
[2024-11-14 05:41:06,508 INFO  L197        IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 156 for LOIs
[2024-11-14 05:41:06,828 INFO  L180        IcfgInterpreter]: Interpretation finished
[2024-11-14 05:41:50,098 INFO  L133             SifaRunner]: Sifa could not show that error location is unreachable, found '14072#(and (exists ((|v_ULTIMATE.start_main_~x~0#1_40| Int) (|v_ULTIMATE.start_main_~Y~0#1_79| Int) (v_~counter~0_18 Int)) (and (<= 2 ~counter~0) (<= 1 |#StackHeapBarrier|) (<= 1 |v_ULTIMATE.start_main_~x~0#1_40|) (<= (+ |ULTIMATE.start_main_~v~0#1| 1) (* 2 |v_ULTIMATE.start_main_~Y~0#1_79|)) (= |ULTIMATE.start_main_~xy~0#1| 0) (<= |ULTIMATE.start_main_~X~0#1| 2147483647) (<= |v_ULTIMATE.start_main_~x~0#1_40| 9223372036854775807) (<= 0 (+ |v_ULTIMATE.start_main_~Y~0#1_79| 2147483648)) (= |ULTIMATE.start_main_~y~0#1| 0) (<= (+ 9223372036854775809 (* |v_ULTIMATE.start_main_~x~0#1_40| |v_ULTIMATE.start_main_~Y~0#1_79|)) 0) (= ~counter~0 (+ v_~counter~0_18 1)) (<= 0 |ULTIMATE.start_main_~X~0#1|) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~v~0#1|)))) (<= ~counter~0 5))' at error location
[2024-11-14 05:41:50,098 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED
[2024-11-14 05:41:50,098 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-14 05:41:50,098 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9
[2024-11-14 05:41:50,098 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886166428]
[2024-11-14 05:41:50,098 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-14 05:41:50,099 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-14 05:41:50,099 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2024-11-14 05:41:50,100 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-14 05:41:50,100 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=873, Unknown=2, NotChecked=0, Total=1056
[2024-11-14 05:41:50,100 INFO  L87              Difference]: Start difference. First operand 405 states and 530 transitions. Second operand  has 10 states, 9 states have (on average 9.222222222222221) internal successors, (83), 10 states have internal predecessors, (83), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-14 05:41:56,167 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-14 05:41:56,168 INFO  L93              Difference]: Finished difference Result 433 states and 554 transitions.
[2024-11-14 05:41:56,168 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-11-14 05:41:56,169 INFO  L78                 Accepts]: Start accepts. Automaton has  has 10 states, 9 states have (on average 9.222222222222221) internal successors, (83), 10 states have internal predecessors, (83), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44
[2024-11-14 05:41:56,169 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-14 05:41:56,170 INFO  L225             Difference]: With dead ends: 433
[2024-11-14 05:41:56,171 INFO  L226             Difference]: Without dead ends: 431
[2024-11-14 05:41:56,171 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 87 SyntacticMatches, 12 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 44.5s TimeCoverageRelationStatistics Valid=203, Invalid=985, Unknown=2, NotChecked=0, Total=1190
[2024-11-14 05:41:56,172 INFO  L432           NwaCegarLoop]: 74 mSDtfsCounter, 318 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time
[2024-11-14 05:41:56,172 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 389 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time]
[2024-11-14 05:41:56,173 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 431 states.
[2024-11-14 05:41:56,192 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 411.
[2024-11-14 05:41:56,193 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 411 states, 357 states have (on average 1.4565826330532212) internal successors, (520), 399 states have internal predecessors, (520), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7)
[2024-11-14 05:41:56,195 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 534 transitions.
[2024-11-14 05:41:56,195 INFO  L78                 Accepts]: Start accepts. Automaton has 411 states and 534 transitions. Word has length 44
[2024-11-14 05:41:56,196 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-14 05:41:56,196 INFO  L471      AbstractCegarLoop]: Abstraction has 411 states and 534 transitions.
[2024-11-14 05:41:56,196 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 9 states have (on average 9.222222222222221) internal successors, (83), 10 states have internal predecessors, (83), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-14 05:41:56,196 INFO  L276                IsEmpty]: Start isEmpty. Operand 411 states and 534 transitions.
[2024-11-14 05:41:56,196 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 46
[2024-11-14 05:41:56,197 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-14 05:41:56,197 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-14 05:41:56,220 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0
[2024-11-14 05:41:56,401 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27
[2024-11-14 05:41:56,402 INFO  L396      AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] ===
[2024-11-14 05:41:56,402 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 05:41:56,402 INFO  L85        PathProgramCache]: Analyzing trace with hash -444202097, now seen corresponding path program 1 times
[2024-11-14 05:41:56,402 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2024-11-14 05:41:56,402 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246859579]
[2024-11-14 05:41:56,402 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:41:56,403 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 05:41:56,416 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-14 05:41:56,417 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1836261296]
[2024-11-14 05:41:56,417 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:41:56,417 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-14 05:41:56,417 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3
[2024-11-14 05:41:56,420 INFO  L229       MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-14 05:41:56,422 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process
[2024-11-14 05:41:56,473 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 05:41:56,474 INFO  L255         TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-11-14 05:41:56,476 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-14 05:41:57,475 INFO  L134       CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 05:41:57,476 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-14 05:41:58,620 INFO  L134       CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 05:41:58,620 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2024-11-14 05:41:58,620 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246859579]
[2024-11-14 05:41:58,620 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-11-14 05:41:58,620 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1836261296]
[2024-11-14 05:41:58,620 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1836261296] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-14 05:41:58,621 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [310073255]
[2024-11-14 05:41:58,623 INFO  L159        IcfgInterpreter]: Started Sifa with 40 locations of interest
[2024-11-14 05:41:58,623 INFO  L166        IcfgInterpreter]: Building call graph
[2024-11-14 05:41:58,623 INFO  L171        IcfgInterpreter]: Initial procedures are [ULTIMATE.start]
[2024-11-14 05:41:58,624 INFO  L176        IcfgInterpreter]: Starting interpretation
[2024-11-14 05:41:58,624 INFO  L197        IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs
[2024-11-14 05:42:02,402 INFO  L197        IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 156 for LOIs
[2024-11-14 05:42:02,593 INFO  L180        IcfgInterpreter]: Interpretation finished
[2024-11-14 05:42:41,137 INFO  L133             SifaRunner]: Sifa could not show that error location is unreachable, found '15265#(and (exists ((|v_ULTIMATE.start_main_~x~0#1_48| Int) (v_~counter~0_25 Int) (|v_ULTIMATE.start_main_~Y~0#1_80| Int)) (and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~xy~0#1| 0) (<= |ULTIMATE.start_main_~X~0#1| 2147483647) (<= 1 v_~counter~0_25) (= |ULTIMATE.start_main_~y~0#1| 0) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~x~0#1_48| |v_ULTIMATE.start_main_~Y~0#1_80|)) (<= 1 |v_ULTIMATE.start_main_~x~0#1_48|) (<= 0 |ULTIMATE.start_main_~X~0#1|) (<= |v_ULTIMATE.start_main_~x~0#1_48| 9223372036854775807) (= (+ v_~counter~0_25 1) ~counter~0) (<= (+ |ULTIMATE.start_main_~v~0#1| 1) (* 2 |v_ULTIMATE.start_main_~Y~0#1_80|)) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~v~0#1|)) (<= |v_ULTIMATE.start_main_~Y~0#1_80| 2147483647))) (<= ~counter~0 5))' at error location
[2024-11-14 05:42:41,137 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED
[2024-11-14 05:42:41,137 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-14 05:42:41,137 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9
[2024-11-14 05:42:41,138 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110771692]
[2024-11-14 05:42:41,138 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-14 05:42:41,138 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-14 05:42:41,138 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2024-11-14 05:42:41,139 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-14 05:42:41,140 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=876, Unknown=0, NotChecked=0, Total=1056
[2024-11-14 05:42:41,141 INFO  L87              Difference]: Start difference. First operand 411 states and 534 transitions. Second operand  has 10 states, 9 states have (on average 9.444444444444445) internal successors, (85), 10 states have internal predecessors, (85), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-14 05:42:46,569 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-14 05:42:46,569 INFO  L93              Difference]: Finished difference Result 435 states and 550 transitions.
[2024-11-14 05:42:46,570 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-11-14 05:42:46,570 INFO  L78                 Accepts]: Start accepts. Automaton has  has 10 states, 9 states have (on average 9.444444444444445) internal successors, (85), 10 states have internal predecessors, (85), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45
[2024-11-14 05:42:46,570 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-14 05:42:46,572 INFO  L225             Difference]: With dead ends: 435
[2024-11-14 05:42:46,572 INFO  L226             Difference]: Without dead ends: 433
[2024-11-14 05:42:46,573 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 90 SyntacticMatches, 12 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 39.4s TimeCoverageRelationStatistics Valid=201, Invalid=989, Unknown=0, NotChecked=0, Total=1190
[2024-11-14 05:42:46,574 INFO  L432           NwaCegarLoop]: 74 mSDtfsCounter, 380 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time
[2024-11-14 05:42:46,574 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [381 Valid, 280 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time]
[2024-11-14 05:42:46,575 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 433 states.
[2024-11-14 05:42:46,596 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 413.
[2024-11-14 05:42:46,597 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 413 states, 359 states have (on average 1.4428969359331476) internal successors, (518), 401 states have internal predecessors, (518), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7)
[2024-11-14 05:42:46,599 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 532 transitions.
[2024-11-14 05:42:46,599 INFO  L78                 Accepts]: Start accepts. Automaton has 413 states and 532 transitions. Word has length 45
[2024-11-14 05:42:46,600 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-14 05:42:46,600 INFO  L471      AbstractCegarLoop]: Abstraction has 413 states and 532 transitions.
[2024-11-14 05:42:46,600 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 9 states have (on average 9.444444444444445) internal successors, (85), 10 states have internal predecessors, (85), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-14 05:42:46,600 INFO  L276                IsEmpty]: Start isEmpty. Operand 413 states and 532 transitions.
[2024-11-14 05:42:46,601 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 49
[2024-11-14 05:42:46,601 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-14 05:42:46,601 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-14 05:42:46,627 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0
[2024-11-14 05:42:46,801 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28
[2024-11-14 05:42:46,802 INFO  L396      AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] ===
[2024-11-14 05:42:46,802 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 05:42:46,802 INFO  L85        PathProgramCache]: Analyzing trace with hash -430374098, now seen corresponding path program 1 times
[2024-11-14 05:42:46,802 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2024-11-14 05:42:46,802 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278461559]
[2024-11-14 05:42:46,803 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:42:46,803 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 05:42:46,818 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-14 05:42:46,819 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [295808056]
[2024-11-14 05:42:46,819 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:42:46,820 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-14 05:42:46,820 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3
[2024-11-14 05:42:46,823 INFO  L229       MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-14 05:42:46,825 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process
[2024-11-14 05:42:46,885 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 05:42:46,886 INFO  L255         TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 12 conjuncts are in the unsatisfiable core
[2024-11-14 05:42:46,887 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-14 05:42:48,367 INFO  L134       CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 05:42:48,367 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-14 05:42:49,592 INFO  L134       CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 05:42:49,592 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2024-11-14 05:42:49,593 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278461559]
[2024-11-14 05:42:49,593 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-11-14 05:42:49,593 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [295808056]
[2024-11-14 05:42:49,593 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [295808056] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-14 05:42:49,593 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1561833135]
[2024-11-14 05:42:49,595 INFO  L159        IcfgInterpreter]: Started Sifa with 40 locations of interest
[2024-11-14 05:42:49,596 INFO  L166        IcfgInterpreter]: Building call graph
[2024-11-14 05:42:49,596 INFO  L171        IcfgInterpreter]: Initial procedures are [ULTIMATE.start]
[2024-11-14 05:42:49,596 INFO  L176        IcfgInterpreter]: Starting interpretation
[2024-11-14 05:42:49,596 INFO  L197        IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs
[2024-11-14 05:42:53,523 INFO  L197        IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 156 for LOIs
[2024-11-14 05:42:53,661 INFO  L180        IcfgInterpreter]: Interpretation finished
[2024-11-14 05:43:35,621 INFO  L133             SifaRunner]: Sifa could not show that error location is unreachable, found '16482#(and (= (* |ULTIMATE.start_main_~X~0#1| |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_main_~xy~0#1|) (<= 0 (+ (* |ULTIMATE.start_main_~Y~0#1| |ULTIMATE.start_main_~x~0#1|) 9223372036854775808)) (exists ((|v_ULTIMATE.start_main_~xy~0#1_80| Int) (v_~counter~0_32 Int)) (and (<= 2 ~counter~0) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~x~0#1| 9223372036854775807) (<= |ULTIMATE.start_main_~X~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~Y~0#1| 2147483648)) (= |ULTIMATE.start_main_~y~0#1| 0) (<= 1 |ULTIMATE.start_main_~x~0#1|) (= ~counter~0 (+ v_~counter~0_32 1)) (<= 0 |ULTIMATE.start_main_~X~0#1|) (<= (+ |ULTIMATE.start_main_~v~0#1| 1) (* 2 |ULTIMATE.start_main_~Y~0#1|)) (= |v_ULTIMATE.start_main_~xy~0#1_80| 0) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~v~0#1|)))) (<= ~counter~0 5) (<= (+ (* |ULTIMATE.start_main_~Y~0#1| |ULTIMATE.start_main_~x~0#1|) 4611686018427387905) 0))' at error location
[2024-11-14 05:43:35,621 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED
[2024-11-14 05:43:35,621 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-14 05:43:35,622 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11
[2024-11-14 05:43:35,622 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147316807]
[2024-11-14 05:43:35,622 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-14 05:43:35,622 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-11-14 05:43:35,622 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2024-11-14 05:43:35,623 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-11-14 05:43:35,623 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=994, Unknown=1, NotChecked=0, Total=1190
[2024-11-14 05:43:35,623 INFO  L87              Difference]: Start difference. First operand 413 states and 532 transitions. Second operand  has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 12 states have internal predecessors, (91), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-14 05:43:44,819 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-14 05:43:44,819 INFO  L93              Difference]: Finished difference Result 507 states and 625 transitions.
[2024-11-14 05:43:44,819 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. 
[2024-11-14 05:43:44,820 INFO  L78                 Accepts]: Start accepts. Automaton has  has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 12 states have internal predecessors, (91), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 48
[2024-11-14 05:43:44,820 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-14 05:43:44,822 INFO  L225             Difference]: With dead ends: 507
[2024-11-14 05:43:44,822 INFO  L226             Difference]: Without dead ends: 505
[2024-11-14 05:43:44,823 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 96 SyntacticMatches, 13 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 661 ImplicationChecksByTransitivity, 44.6s TimeCoverageRelationStatistics Valid=299, Invalid=1592, Unknown=1, NotChecked=0, Total=1892
[2024-11-14 05:43:44,824 INFO  L432           NwaCegarLoop]: 50 mSDtfsCounter, 603 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 603 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time
[2024-11-14 05:43:44,825 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [603 Valid, 281 Invalid, 677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time]
[2024-11-14 05:43:44,826 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 505 states.
[2024-11-14 05:43:44,849 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 423.
[2024-11-14 05:43:44,850 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 423 states, 369 states have (on average 1.4254742547425474) internal successors, (526), 411 states have internal predecessors, (526), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7)
[2024-11-14 05:43:44,852 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 540 transitions.
[2024-11-14 05:43:44,852 INFO  L78                 Accepts]: Start accepts. Automaton has 423 states and 540 transitions. Word has length 48
[2024-11-14 05:43:44,853 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-14 05:43:44,853 INFO  L471      AbstractCegarLoop]: Abstraction has 423 states and 540 transitions.
[2024-11-14 05:43:44,853 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 12 states have internal predecessors, (91), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-14 05:43:44,853 INFO  L276                IsEmpty]: Start isEmpty. Operand 423 states and 540 transitions.
[2024-11-14 05:43:44,854 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 50
[2024-11-14 05:43:44,854 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-14 05:43:44,854 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-14 05:43:44,879 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0
[2024-11-14 05:43:45,058 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-14 05:43:45,059 INFO  L396      AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] ===
[2024-11-14 05:43:45,060 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 05:43:45,060 INFO  L85        PathProgramCache]: Analyzing trace with hash -456695085, now seen corresponding path program 1 times
[2024-11-14 05:43:45,060 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2024-11-14 05:43:45,060 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598171662]
[2024-11-14 05:43:45,060 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:43:45,060 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 05:43:45,079 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-14 05:43:45,080 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1455333013]
[2024-11-14 05:43:45,081 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:43:45,081 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-14 05:43:45,081 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3
[2024-11-14 05:43:45,084 INFO  L229       MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-14 05:43:45,086 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process
[2024-11-14 05:43:45,147 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 05:43:45,148 INFO  L255         TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 13 conjuncts are in the unsatisfiable core
[2024-11-14 05:43:45,150 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-14 05:43:46,765 INFO  L134       CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 05:43:46,765 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-14 05:43:49,417 INFO  L134       CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 05:43:49,417 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2024-11-14 05:43:49,417 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598171662]
[2024-11-14 05:43:49,417 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-11-14 05:43:49,417 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1455333013]
[2024-11-14 05:43:49,418 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1455333013] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-14 05:43:49,418 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [216000579]
[2024-11-14 05:43:49,424 INFO  L159        IcfgInterpreter]: Started Sifa with 40 locations of interest
[2024-11-14 05:43:49,424 INFO  L166        IcfgInterpreter]: Building call graph
[2024-11-14 05:43:49,425 INFO  L171        IcfgInterpreter]: Initial procedures are [ULTIMATE.start]
[2024-11-14 05:43:49,425 INFO  L176        IcfgInterpreter]: Starting interpretation
[2024-11-14 05:43:49,425 INFO  L197        IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs
[2024-11-14 05:43:52,922 INFO  L197        IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 156 for LOIs
[2024-11-14 05:43:53,100 INFO  L180        IcfgInterpreter]: Interpretation finished
[2024-11-14 05:44:34,282 INFO  L133             SifaRunner]: Sifa could not show that error location is unreachable, found '17803#(and (<= 4611686018427387904 (* |ULTIMATE.start_main_~Y~0#1| |ULTIMATE.start_main_~x~0#1|)) (= (* |ULTIMATE.start_main_~X~0#1| |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_main_~xy~0#1|) (exists ((v_~counter~0_39 Int) (|v_ULTIMATE.start_main_~xy~0#1_86| Int)) (and (<= 2 ~counter~0) (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~X~0#1| 2147483647) (= |v_ULTIMATE.start_main_~xy~0#1_86| 0) (= |ULTIMATE.start_main_~y~0#1| 0) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~Y~0#1| 2147483647) (= (+ v_~counter~0_39 1) ~counter~0) (<= 0 |ULTIMATE.start_main_~X~0#1|) (<= (+ |ULTIMATE.start_main_~v~0#1| 1) (* 2 |ULTIMATE.start_main_~Y~0#1|)) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~v~0#1|)))) (<= (* |ULTIMATE.start_main_~Y~0#1| |ULTIMATE.start_main_~x~0#1|) 9223372036854775807) (<= ~counter~0 5))' at error location
[2024-11-14 05:44:34,283 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED
[2024-11-14 05:44:34,283 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-14 05:44:34,283 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13
[2024-11-14 05:44:34,283 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622583480]
[2024-11-14 05:44:34,283 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-14 05:44:34,283 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2024-11-14 05:44:34,283 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2024-11-14 05:44:34,284 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2024-11-14 05:44:34,284 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=1141, Unknown=1, NotChecked=0, Total=1332
[2024-11-14 05:44:34,285 INFO  L87              Difference]: Start difference. First operand 423 states and 540 transitions. Second operand  has 14 states, 13 states have (on average 7.153846153846154) internal successors, (93), 14 states have internal predecessors, (93), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-14 05:44:47,567 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-14 05:44:47,567 INFO  L93              Difference]: Finished difference Result 523 states and 657 transitions.
[2024-11-14 05:44:47,568 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. 
[2024-11-14 05:44:47,568 INFO  L78                 Accepts]: Start accepts. Automaton has  has 14 states, 13 states have (on average 7.153846153846154) internal successors, (93), 14 states have internal predecessors, (93), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 49
[2024-11-14 05:44:47,568 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-14 05:44:47,570 INFO  L225             Difference]: With dead ends: 523
[2024-11-14 05:44:47,570 INFO  L226             Difference]: Without dead ends: 521
[2024-11-14 05:44:47,572 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 97 SyntacticMatches, 13 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 917 ImplicationChecksByTransitivity, 46.3s TimeCoverageRelationStatistics Valid=427, Invalid=2542, Unknown=1, NotChecked=0, Total=2970
[2024-11-14 05:44:47,573 INFO  L432           NwaCegarLoop]: 48 mSDtfsCounter, 912 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 904 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 912 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time
[2024-11-14 05:44:47,573 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [912 Valid, 318 Invalid, 932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 904 Invalid, 0 Unknown, 0 Unchecked, 9.7s Time]
[2024-11-14 05:44:47,574 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 521 states.
[2024-11-14 05:44:47,597 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 457.
[2024-11-14 05:44:47,598 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 457 states, 402 states have (on average 1.427860696517413) internal successors, (574), 444 states have internal predecessors, (574), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8)
[2024-11-14 05:44:47,599 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 590 transitions.
[2024-11-14 05:44:47,600 INFO  L78                 Accepts]: Start accepts. Automaton has 457 states and 590 transitions. Word has length 49
[2024-11-14 05:44:47,600 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-14 05:44:47,600 INFO  L471      AbstractCegarLoop]: Abstraction has 457 states and 590 transitions.
[2024-11-14 05:44:47,600 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 14 states, 13 states have (on average 7.153846153846154) internal successors, (93), 14 states have internal predecessors, (93), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-14 05:44:47,601 INFO  L276                IsEmpty]: Start isEmpty. Operand 457 states and 590 transitions.
[2024-11-14 05:44:47,601 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 51
[2024-11-14 05:44:47,601 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-14 05:44:47,601 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-14 05:44:47,625 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0
[2024-11-14 05:44:47,802 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-14 05:44:47,802 INFO  L396      AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] ===
[2024-11-14 05:44:47,803 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 05:44:47,803 INFO  L85        PathProgramCache]: Analyzing trace with hash 1007891994, now seen corresponding path program 1 times
[2024-11-14 05:44:47,803 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2024-11-14 05:44:47,803 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501513923]
[2024-11-14 05:44:47,803 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:44:47,803 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 05:44:47,816 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-14 05:44:47,817 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1903854145]
[2024-11-14 05:44:47,817 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:44:47,817 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-14 05:44:47,818 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3
[2024-11-14 05:44:47,820 INFO  L229       MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-14 05:44:47,822 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process
[2024-11-14 05:44:47,890 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 05:44:47,891 INFO  L255         TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-14 05:44:47,892 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-14 05:44:49,231 INFO  L134       CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 05:44:49,232 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-14 05:44:50,441 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2024-11-14 05:44:50,441 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501513923]
[2024-11-14 05:44:50,441 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-11-14 05:44:50,441 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1903854145]
[2024-11-14 05:44:50,441 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1903854145] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-14 05:44:50,441 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1563145911]
[2024-11-14 05:44:50,446 INFO  L159        IcfgInterpreter]: Started Sifa with 44 locations of interest
[2024-11-14 05:44:50,446 INFO  L166        IcfgInterpreter]: Building call graph
[2024-11-14 05:44:50,446 INFO  L171        IcfgInterpreter]: Initial procedures are [ULTIMATE.start]
[2024-11-14 05:44:50,446 INFO  L176        IcfgInterpreter]: Starting interpretation
[2024-11-14 05:44:50,446 INFO  L197        IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs
[2024-11-14 05:44:54,707 INFO  L197        IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 129 for LOIs
[2024-11-14 05:44:54,776 INFO  L180        IcfgInterpreter]: Interpretation finished
[2024-11-14 05:45:27,097 INFO  L133             SifaRunner]: Sifa could not show that error location is unreachable, found '19114#(and (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 0 (+ (* |ULTIMATE.start_main_~Y~0#1| |ULTIMATE.start_main_~x~0#1|) 9223372036854775808)) (<= |ULTIMATE.start_main_~x~0#1| 9223372036854775807) (<= 0 (+ |ULTIMATE.start_main_~Y~0#1| 2147483648)) (<= |ULTIMATE.start_main_~v~0#1| 9223372036854775807) (<= 1 ~counter~0) (<= (* |ULTIMATE.start_main_~Y~0#1| |ULTIMATE.start_main_~x~0#1|) 9223372036854775807) (<= ~counter~0 5) (<= |ULTIMATE.start_main_~Y~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~v~0#1| 8589934590)) (exists ((|v_ULTIMATE.start_main_~X~0#1_65| Int) (|v_ULTIMATE.start_main_~y~0#1_42| Int)) (and (<= (+ 9223372036854775809 (* |v_ULTIMATE.start_main_~X~0#1_65| |v_ULTIMATE.start_main_~y~0#1_42|)) 0) (<= |v_ULTIMATE.start_main_~y~0#1_42| 9223372036854775807) (<= 0 |v_ULTIMATE.start_main_~y~0#1_42|) (<= 0 (+ |v_ULTIMATE.start_main_~X~0#1_65| 2147483648)))) (= (* |ULTIMATE.start_main_~Y~0#1| |ULTIMATE.start_main_~x~0#1|) |ULTIMATE.start_main_~yx~0#1|))' at error location
[2024-11-14 05:45:27,097 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED
[2024-11-14 05:45:27,098 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences.
[2024-11-14 05:45:27,098 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5
[2024-11-14 05:45:27,098 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201961325]
[2024-11-14 05:45:27,098 INFO  L85    oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton
[2024-11-14 05:45:27,098 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-14 05:45:27,098 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2024-11-14 05:45:27,099 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-14 05:45:27,099 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=361, Invalid=1279, Unknown=0, NotChecked=0, Total=1640
[2024-11-14 05:45:27,100 INFO  L87              Difference]: Start difference. First operand 457 states and 590 transitions. Second operand  has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-14 05:45:30,427 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-14 05:45:30,427 INFO  L93              Difference]: Finished difference Result 492 states and 614 transitions.
[2024-11-14 05:45:30,428 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-11-14 05:45:30,428 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50
[2024-11-14 05:45:30,428 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-14 05:45:30,430 INFO  L225             Difference]: With dead ends: 492
[2024-11-14 05:45:30,430 INFO  L226             Difference]: Without dead ends: 488
[2024-11-14 05:45:30,431 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 73 SyntacticMatches, 8 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 653 ImplicationChecksByTransitivity, 33.3s TimeCoverageRelationStatistics Valid=382, Invalid=1424, Unknown=0, NotChecked=0, Total=1806
[2024-11-14 05:45:30,432 INFO  L432           NwaCegarLoop]: 148 mSDtfsCounter, 171 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time
[2024-11-14 05:45:30,432 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 453 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time]
[2024-11-14 05:45:30,436 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 488 states.
[2024-11-14 05:45:30,460 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 456.
[2024-11-14 05:45:30,461 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 456 states, 404 states have (on average 1.4034653465346534) internal successors, (567), 443 states have internal predecessors, (567), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8)
[2024-11-14 05:45:30,463 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 583 transitions.
[2024-11-14 05:45:30,463 INFO  L78                 Accepts]: Start accepts. Automaton has 456 states and 583 transitions. Word has length 50
[2024-11-14 05:45:30,463 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-14 05:45:30,463 INFO  L471      AbstractCegarLoop]: Abstraction has 456 states and 583 transitions.
[2024-11-14 05:45:30,463 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-14 05:45:30,463 INFO  L276                IsEmpty]: Start isEmpty. Operand 456 states and 583 transitions.
[2024-11-14 05:45:30,464 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2024-11-14 05:45:30,464 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-14 05:45:30,464 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-14 05:45:30,489 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0
[2024-11-14 05:45:30,664 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-14 05:45:30,665 INFO  L396      AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] ===
[2024-11-14 05:45:30,666 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 05:45:30,666 INFO  L85        PathProgramCache]: Analyzing trace with hash 1179880803, now seen corresponding path program 1 times
[2024-11-14 05:45:30,666 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2024-11-14 05:45:30,666 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894678480]
[2024-11-14 05:45:30,666 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:45:30,666 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 05:45:30,679 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-14 05:45:30,680 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1013616440]
[2024-11-14 05:45:30,680 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:45:30,680 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-14 05:45:30,681 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3
[2024-11-14 05:45:30,683 INFO  L229       MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-14 05:45:30,685 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process
[2024-11-14 05:45:30,749 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 05:45:30,751 INFO  L255         TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-14 05:45:30,753 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-14 05:45:32,907 INFO  L134       CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 05:45:32,907 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-14 05:45:34,290 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2024-11-14 05:45:34,290 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894678480]
[2024-11-14 05:45:34,290 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-11-14 05:45:34,291 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1013616440]
[2024-11-14 05:45:34,291 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1013616440] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-14 05:45:34,291 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [27773668]
[2024-11-14 05:45:34,293 INFO  L159        IcfgInterpreter]: Started Sifa with 44 locations of interest
[2024-11-14 05:45:34,293 INFO  L166        IcfgInterpreter]: Building call graph
[2024-11-14 05:45:34,293 INFO  L171        IcfgInterpreter]: Initial procedures are [ULTIMATE.start]
[2024-11-14 05:45:34,294 INFO  L176        IcfgInterpreter]: Starting interpretation
[2024-11-14 05:45:34,294 INFO  L197        IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs
[2024-11-14 05:45:38,627 INFO  L197        IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 129 for LOIs
[2024-11-14 05:45:38,710 INFO  L180        IcfgInterpreter]: Interpretation finished
[2024-11-14 05:46:17,781 INFO  L133             SifaRunner]: Sifa could not show that error location is unreachable, found '20376#(and (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= 0 (+ (* |ULTIMATE.start_main_~Y~0#1| |ULTIMATE.start_main_~x~0#1|) 9223372036854775808)) (<= |ULTIMATE.start_main_~x~0#1| 9223372036854775807) (<= 0 (+ |ULTIMATE.start_main_~Y~0#1| 2147483648)) (<= |ULTIMATE.start_main_~v~0#1| 9223372036854775807) (<= 1 ~counter~0) (<= (* |ULTIMATE.start_main_~Y~0#1| |ULTIMATE.start_main_~x~0#1|) 9223372036854775807) (<= ~counter~0 5) (<= |ULTIMATE.start_main_~Y~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~v~0#1| 8589934590)) (exists ((|v_ULTIMATE.start_main_~y~0#1_49| Int) (|v_ULTIMATE.start_main_~X~0#1_66| Int)) (and (<= 0 |v_ULTIMATE.start_main_~y~0#1_49|) (<= |v_ULTIMATE.start_main_~y~0#1_49| 9223372036854775807) (<= |v_ULTIMATE.start_main_~X~0#1_66| 2147483647) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~X~0#1_66| |v_ULTIMATE.start_main_~y~0#1_49|)))) (= (* |ULTIMATE.start_main_~Y~0#1| |ULTIMATE.start_main_~x~0#1|) |ULTIMATE.start_main_~yx~0#1|))' at error location
[2024-11-14 05:46:17,781 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED
[2024-11-14 05:46:17,781 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences.
[2024-11-14 05:46:17,781 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6
[2024-11-14 05:46:17,781 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260560800]
[2024-11-14 05:46:17,781 INFO  L85    oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton
[2024-11-14 05:46:17,781 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-14 05:46:17,781 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2024-11-14 05:46:17,782 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-14 05:46:17,782 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=338, Invalid=1384, Unknown=0, NotChecked=0, Total=1722
[2024-11-14 05:46:17,782 INFO  L87              Difference]: Start difference. First operand 456 states and 583 transitions. Second operand  has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-14 05:46:19,923 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-14 05:46:19,923 INFO  L93              Difference]: Finished difference Result 616 states and 773 transitions.
[2024-11-14 05:46:19,923 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-11-14 05:46:19,924 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51
[2024-11-14 05:46:19,924 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-14 05:46:19,926 INFO  L225             Difference]: With dead ends: 616
[2024-11-14 05:46:19,926 INFO  L226             Difference]: Without dead ends: 614
[2024-11-14 05:46:19,927 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 75 SyntacticMatches, 8 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 619 ImplicationChecksByTransitivity, 40.0s TimeCoverageRelationStatistics Valid=347, Invalid=1459, Unknown=0, NotChecked=0, Total=1806
[2024-11-14 05:46:19,927 INFO  L432           NwaCegarLoop]: 81 mSDtfsCounter, 431 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time
[2024-11-14 05:46:19,928 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 321 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time]
[2024-11-14 05:46:19,929 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 614 states.
[2024-11-14 05:46:19,959 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 544.
[2024-11-14 05:46:19,960 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 544 states, 490 states have (on average 1.4326530612244899) internal successors, (702), 529 states have internal predecessors, (702), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10)
[2024-11-14 05:46:19,962 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 722 transitions.
[2024-11-14 05:46:19,963 INFO  L78                 Accepts]: Start accepts. Automaton has 544 states and 722 transitions. Word has length 51
[2024-11-14 05:46:19,963 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-14 05:46:19,963 INFO  L471      AbstractCegarLoop]: Abstraction has 544 states and 722 transitions.
[2024-11-14 05:46:19,963 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 7 states have internal predecessors, (49), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-14 05:46:19,963 INFO  L276                IsEmpty]: Start isEmpty. Operand 544 states and 722 transitions.
[2024-11-14 05:46:19,964 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 53
[2024-11-14 05:46:19,964 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-14 05:46:19,964 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-14 05:46:19,989 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0
[2024-11-14 05:46:20,168 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-14 05:46:20,169 INFO  L396      AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] ===
[2024-11-14 05:46:20,169 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 05:46:20,169 INFO  L85        PathProgramCache]: Analyzing trace with hash 1053183090, now seen corresponding path program 1 times
[2024-11-14 05:46:20,169 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2024-11-14 05:46:20,169 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013952221]
[2024-11-14 05:46:20,169 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:46:20,170 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 05:46:20,183 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-14 05:46:20,184 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1336984581]
[2024-11-14 05:46:20,184 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:46:20,185 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-14 05:46:20,185 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3
[2024-11-14 05:46:20,188 INFO  L229       MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-14 05:46:20,191 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process
[2024-11-14 05:46:20,259 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 05:46:20,260 INFO  L255         TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-14 05:46:20,261 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-14 05:46:20,946 INFO  L134       CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2024-11-14 05:46:20,946 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-14 05:46:21,625 INFO  L134       CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2024-11-14 05:46:21,625 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2024-11-14 05:46:21,625 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013952221]
[2024-11-14 05:46:21,625 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-11-14 05:46:21,625 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1336984581]
[2024-11-14 05:46:21,626 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1336984581] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-14 05:46:21,626 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1093565256]
[2024-11-14 05:46:21,629 INFO  L159        IcfgInterpreter]: Started Sifa with 40 locations of interest
[2024-11-14 05:46:21,629 INFO  L166        IcfgInterpreter]: Building call graph
[2024-11-14 05:46:21,629 INFO  L171        IcfgInterpreter]: Initial procedures are [ULTIMATE.start]
[2024-11-14 05:46:21,629 INFO  L176        IcfgInterpreter]: Starting interpretation
[2024-11-14 05:46:21,629 INFO  L197        IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs
[2024-11-14 05:46:25,207 INFO  L197        IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 156 for LOIs
[2024-11-14 05:46:25,381 INFO  L180        IcfgInterpreter]: Interpretation finished
[2024-11-14 05:47:24,256 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSifa [1093565256] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-14 05:47:24,256 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences.
[2024-11-14 05:47:24,256 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [4, 4] total 27
[2024-11-14 05:47:24,257 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5029778]
[2024-11-14 05:47:24,257 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-14 05:47:24,257 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 24 states
[2024-11-14 05:47:24,257 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2024-11-14 05:47:24,258 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants.
[2024-11-14 05:47:24,258 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=607, Unknown=1, NotChecked=0, Total=756
[2024-11-14 05:47:24,258 INFO  L87              Difference]: Start difference. First operand 544 states and 722 transitions. Second operand  has 24 states, 21 states have (on average 1.8095238095238095) internal successors, (38), 21 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-14 05:47:34,460 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.54s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0]
[2024-11-14 05:47:37,132 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0]
[2024-11-14 05:47:39,333 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0]
[2024-11-14 05:47:48,870 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0]
[2024-11-14 05:47:58,678 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.55s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0]
[2024-11-14 05:48:11,158 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.62s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0]
[2024-11-14 05:48:24,566 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0]
[2024-11-14 05:48:28,450 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0]
[2024-11-14 05:48:29,771 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0]
[2024-11-14 05:48:34,430 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0]
[2024-11-14 05:48:38,942 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0]
[2024-11-14 05:48:41,642 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0]
[2024-11-14 05:48:46,388 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0]
[2024-11-14 05:48:49,994 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0]
[2024-11-14 05:48:51,992 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0]
[2024-11-14 05:48:54,493 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0]
[2024-11-14 05:49:00,397 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0]
[2024-11-14 05:49:03,005 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0]
[2024-11-14 05:49:07,146 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0]
[2024-11-14 05:49:13,198 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0]
[2024-11-14 05:49:15,469 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0]
[2024-11-14 05:49:17,982 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0]
[2024-11-14 05:49:20,152 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0]
[2024-11-14 05:49:28,450 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0]
[2024-11-14 05:49:30,717 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0]
[2024-11-14 05:49:38,989 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-14 05:49:38,989 INFO  L93              Difference]: Finished difference Result 600 states and 777 transitions.
[2024-11-14 05:49:38,989 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. 
[2024-11-14 05:49:38,990 INFO  L78                 Accepts]: Start accepts. Automaton has  has 24 states, 21 states have (on average 1.8095238095238095) internal successors, (38), 21 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 52
[2024-11-14 05:49:38,990 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-14 05:49:38,992 INFO  L225             Difference]: With dead ends: 600
[2024-11-14 05:49:38,992 INFO  L226             Difference]: Without dead ends: 591
[2024-11-14 05:49:38,993 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 110 SyntacticMatches, 18 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 677 ImplicationChecksByTransitivity, 99.1s TimeCoverageRelationStatistics Valid=578, Invalid=2280, Unknown=4, NotChecked=0, Total=2862
[2024-11-14 05:49:38,994 INFO  L432           NwaCegarLoop]: 25 mSDtfsCounter, 171 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 1857 mSolverCounterSat, 35 mSolverCounterUnsat, 19 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 92.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 1911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1857 IncrementalHoareTripleChecker+Invalid, 19 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 94.5s IncrementalHoareTripleChecker+Time
[2024-11-14 05:49:38,994 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 179 Invalid, 1911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1857 Invalid, 19 Unknown, 0 Unchecked, 94.5s Time]
[2024-11-14 05:49:38,995 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 591 states.
[2024-11-14 05:49:39,030 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 536.
[2024-11-14 05:49:39,031 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 536 states, 479 states have (on average 1.3987473903966596) internal successors, (670), 518 states have internal predecessors, (670), 10 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10)
[2024-11-14 05:49:39,032 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 690 transitions.
[2024-11-14 05:49:39,032 INFO  L78                 Accepts]: Start accepts. Automaton has 536 states and 690 transitions. Word has length 52
[2024-11-14 05:49:39,032 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-14 05:49:39,032 INFO  L471      AbstractCegarLoop]: Abstraction has 536 states and 690 transitions.
[2024-11-14 05:49:39,033 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 24 states, 21 states have (on average 1.8095238095238095) internal successors, (38), 21 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-14 05:49:39,033 INFO  L276                IsEmpty]: Start isEmpty. Operand 536 states and 690 transitions.
[2024-11-14 05:49:39,033 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 53
[2024-11-14 05:49:39,033 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-14 05:49:39,033 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-14 05:49:39,053 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0
[2024-11-14 05:49:39,234 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-14 05:49:39,234 INFO  L396      AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr58ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] ===
[2024-11-14 05:49:39,235 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 05:49:39,235 INFO  L85        PathProgramCache]: Analyzing trace with hash 2075251601, now seen corresponding path program 1 times
[2024-11-14 05:49:39,235 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2024-11-14 05:49:39,235 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77972204]
[2024-11-14 05:49:39,235 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:49:39,235 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 05:49:39,244 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 05:49:39,705 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 05:49:39,705 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2024-11-14 05:49:39,706 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77972204]
[2024-11-14 05:49:39,706 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77972204] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-14 05:49:39,706 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-14 05:49:39,706 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-14 05:49:39,707 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059975691]
[2024-11-14 05:49:39,707 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-14 05:49:39,707 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-14 05:49:39,707 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2024-11-14 05:49:39,708 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-14 05:49:39,708 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-14 05:49:39,708 INFO  L87              Difference]: Start difference. First operand 536 states and 690 transitions. Second operand  has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-14 05:49:42,960 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-14 05:49:42,960 INFO  L93              Difference]: Finished difference Result 541 states and 695 transitions.
[2024-11-14 05:49:42,960 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-14 05:49:42,960 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 52
[2024-11-14 05:49:42,961 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-14 05:49:42,962 INFO  L225             Difference]: With dead ends: 541
[2024-11-14 05:49:42,962 INFO  L226             Difference]: Without dead ends: 540
[2024-11-14 05:49:42,963 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-14 05:49:42,963 INFO  L432           NwaCegarLoop]: 65 mSDtfsCounter, 47 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time
[2024-11-14 05:49:42,963 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 119 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time]
[2024-11-14 05:49:42,964 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 540 states.
[2024-11-14 05:49:43,001 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 539.
[2024-11-14 05:49:43,001 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 539 states, 482 states have (on average 1.396265560165975) internal successors, (673), 521 states have internal predecessors, (673), 10 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10)
[2024-11-14 05:49:43,003 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 693 transitions.
[2024-11-14 05:49:43,003 INFO  L78                 Accepts]: Start accepts. Automaton has 539 states and 693 transitions. Word has length 52
[2024-11-14 05:49:43,003 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-14 05:49:43,004 INFO  L471      AbstractCegarLoop]: Abstraction has 539 states and 693 transitions.
[2024-11-14 05:49:43,004 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-14 05:49:43,004 INFO  L276                IsEmpty]: Start isEmpty. Operand 539 states and 693 transitions.
[2024-11-14 05:49:43,004 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 54
[2024-11-14 05:49:43,004 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-14 05:49:43,005 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-14 05:49:43,005 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34
[2024-11-14 05:49:43,005 INFO  L396      AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr59ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] ===
[2024-11-14 05:49:43,005 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 05:49:43,005 INFO  L85        PathProgramCache]: Analyzing trace with hash -91709632, now seen corresponding path program 1 times
[2024-11-14 05:49:43,005 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2024-11-14 05:49:43,006 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442574834]
[2024-11-14 05:49:43,006 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:49:43,006 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 05:49:43,017 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 05:49:43,414 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 05:49:43,414 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2024-11-14 05:49:43,414 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442574834]
[2024-11-14 05:49:43,414 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442574834] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-14 05:49:43,414 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-14 05:49:43,414 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-14 05:49:43,414 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546739420]
[2024-11-14 05:49:43,414 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-14 05:49:43,415 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-14 05:49:43,415 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2024-11-14 05:49:43,415 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-14 05:49:43,415 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-14 05:49:43,415 INFO  L87              Difference]: Start difference. First operand 539 states and 693 transitions. Second operand  has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-14 05:49:46,290 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-14 05:49:46,290 INFO  L93              Difference]: Finished difference Result 541 states and 694 transitions.
[2024-11-14 05:49:46,291 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-14 05:49:46,292 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53
[2024-11-14 05:49:46,292 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-14 05:49:46,294 INFO  L225             Difference]: With dead ends: 541
[2024-11-14 05:49:46,294 INFO  L226             Difference]: Without dead ends: 518
[2024-11-14 05:49:46,294 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-14 05:49:46,295 INFO  L432           NwaCegarLoop]: 68 mSDtfsCounter, 44 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time
[2024-11-14 05:49:46,297 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 122 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time]
[2024-11-14 05:49:46,299 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 518 states.
[2024-11-14 05:49:46,324 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 518.
[2024-11-14 05:49:46,324 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 518 states, 461 states have (on average 1.4121475054229935) internal successors, (651), 500 states have internal predecessors, (651), 10 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10)
[2024-11-14 05:49:46,326 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 671 transitions.
[2024-11-14 05:49:46,326 INFO  L78                 Accepts]: Start accepts. Automaton has 518 states and 671 transitions. Word has length 53
[2024-11-14 05:49:46,327 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-14 05:49:46,327 INFO  L471      AbstractCegarLoop]: Abstraction has 518 states and 671 transitions.
[2024-11-14 05:49:46,327 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-11-14 05:49:46,327 INFO  L276                IsEmpty]: Start isEmpty. Operand 518 states and 671 transitions.
[2024-11-14 05:49:46,327 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 55
[2024-11-14 05:49:46,327 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-14 05:49:46,328 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-14 05:49:46,328 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35
[2024-11-14 05:49:46,328 INFO  L396      AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] ===
[2024-11-14 05:49:46,328 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 05:49:46,328 INFO  L85        PathProgramCache]: Analyzing trace with hash -1503330028, now seen corresponding path program 1 times
[2024-11-14 05:49:46,329 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2024-11-14 05:49:46,329 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340442231]
[2024-11-14 05:49:46,329 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:49:46,329 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 05:49:46,340 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-14 05:49:46,341 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [260450437]
[2024-11-14 05:49:46,341 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:49:46,341 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-14 05:49:46,341 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3
[2024-11-14 05:49:46,347 INFO  L229       MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-14 05:49:46,348 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process
[2024-11-14 05:49:46,401 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 05:49:46,406 INFO  L255         TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 20 conjuncts are in the unsatisfiable core
[2024-11-14 05:49:46,408 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-14 05:49:52,186 INFO  L134       CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 05:49:52,186 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-14 05:49:55,098 INFO  L134       CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 05:49:55,098 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2024-11-14 05:49:55,098 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340442231]
[2024-11-14 05:49:55,098 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-11-14 05:49:55,098 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [260450437]
[2024-11-14 05:49:55,098 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [260450437] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-14 05:49:55,099 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [990820971]
[2024-11-14 05:49:55,100 INFO  L159        IcfgInterpreter]: Started Sifa with 40 locations of interest
[2024-11-14 05:49:55,101 INFO  L166        IcfgInterpreter]: Building call graph
[2024-11-14 05:49:55,101 INFO  L171        IcfgInterpreter]: Initial procedures are [ULTIMATE.start]
[2024-11-14 05:49:55,101 INFO  L176        IcfgInterpreter]: Starting interpretation
[2024-11-14 05:49:55,101 INFO  L197        IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs
[2024-11-14 05:49:58,258 INFO  L197        IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 156 for LOIs
[2024-11-14 05:49:58,393 INFO  L180        IcfgInterpreter]: Interpretation finished
[2024-11-14 05:51:26,001 INFO  L133             SifaRunner]: Sifa could not show that error location is unreachable, found '25855#(and (<= 0 (+ (* |ULTIMATE.start_main_~Y~0#1| |ULTIMATE.start_main_~x~0#1|) 4611686018427387904)) (<= ~counter~0 5) (exists ((v_~counter~0_65 Int) (|v_ULTIMATE.start_main_~xy~0#1_105| Int) (|v_ULTIMATE.start_main_~X~0#1_67| Int)) (and (<= |v_ULTIMATE.start_main_~X~0#1_67| 2147483647) (<= 1 |#StackHeapBarrier|) (<= (+ (* (* |ULTIMATE.start_main_~Y~0#1| |ULTIMATE.start_main_~x~0#1|) 2) 9223372036854775809) |v_ULTIMATE.start_main_~X~0#1_67|) (<= 1 v_~counter~0_65) (<= 0 (+ |ULTIMATE.start_main_~Y~0#1| 2147483648)) (= |ULTIMATE.start_main_~y~0#1| 0) (= ~counter~0 (+ v_~counter~0_65 1)) (<= 1 |ULTIMATE.start_main_~x~0#1|) (<= (+ |ULTIMATE.start_main_~v~0#1| 1) (* 2 |ULTIMATE.start_main_~Y~0#1|)) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~v~0#1|)) (= |v_ULTIMATE.start_main_~xy~0#1_105| 0))))' at error location
[2024-11-14 05:51:26,001 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED
[2024-11-14 05:51:26,001 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-14 05:51:26,001 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13
[2024-11-14 05:51:26,001 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502611518]
[2024-11-14 05:51:26,001 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-14 05:51:26,002 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2024-11-14 05:51:26,002 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2024-11-14 05:51:26,002 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2024-11-14 05:51:26,003 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=1141, Unknown=2, NotChecked=0, Total=1332
[2024-11-14 05:51:26,003 INFO  L87              Difference]: Start difference. First operand 518 states and 671 transitions. Second operand  has 14 states, 13 states have (on average 7.923076923076923) internal successors, (103), 14 states have internal predecessors, (103), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-14 05:51:54,396 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-14 05:51:54,396 INFO  L93              Difference]: Finished difference Result 608 states and 773 transitions.
[2024-11-14 05:51:54,396 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. 
[2024-11-14 05:51:54,396 INFO  L78                 Accepts]: Start accepts. Automaton has  has 14 states, 13 states have (on average 7.923076923076923) internal successors, (103), 14 states have internal predecessors, (103), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 54
[2024-11-14 05:51:54,397 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-14 05:51:54,398 INFO  L225             Difference]: With dead ends: 608
[2024-11-14 05:51:54,398 INFO  L226             Difference]: Without dead ends: 603
[2024-11-14 05:51:54,399 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 108 SyntacticMatches, 17 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 837 ImplicationChecksByTransitivity, 97.7s TimeCoverageRelationStatistics Valid=389, Invalid=2261, Unknown=2, NotChecked=0, Total=2652
[2024-11-14 05:51:54,399 INFO  L432           NwaCegarLoop]: 37 mSDtfsCounter, 800 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 889 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 800 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.7s IncrementalHoareTripleChecker+Time
[2024-11-14 05:51:54,399 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [800 Valid, 230 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 889 Invalid, 0 Unknown, 0 Unchecked, 20.7s Time]
[2024-11-14 05:51:54,400 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 603 states.
[2024-11-14 05:51:54,439 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 544.
[2024-11-14 05:51:54,440 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 544 states, 487 states have (on average 1.3921971252566736) internal successors, (678), 526 states have internal predecessors, (678), 10 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10)
[2024-11-14 05:51:54,442 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 698 transitions.
[2024-11-14 05:51:54,442 INFO  L78                 Accepts]: Start accepts. Automaton has 544 states and 698 transitions. Word has length 54
[2024-11-14 05:51:54,443 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-14 05:51:54,443 INFO  L471      AbstractCegarLoop]: Abstraction has 544 states and 698 transitions.
[2024-11-14 05:51:54,443 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 14 states, 13 states have (on average 7.923076923076923) internal successors, (103), 14 states have internal predecessors, (103), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-14 05:51:54,443 INFO  L276                IsEmpty]: Start isEmpty. Operand 544 states and 698 transitions.
[2024-11-14 05:51:54,443 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 55
[2024-11-14 05:51:54,444 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-14 05:51:54,444 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-14 05:51:54,468 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0
[2024-11-14 05:51:54,644 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36
[2024-11-14 05:51:54,645 INFO  L396      AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] ===
[2024-11-14 05:51:54,645 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 05:51:54,646 INFO  L85        PathProgramCache]: Analyzing trace with hash -183285666, now seen corresponding path program 1 times
[2024-11-14 05:51:54,646 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2024-11-14 05:51:54,646 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625021657]
[2024-11-14 05:51:54,646 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:51:54,646 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 05:51:54,659 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-14 05:51:54,660 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1555955672]
[2024-11-14 05:51:54,660 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:51:54,660 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-14 05:51:54,661 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3
[2024-11-14 05:51:54,663 INFO  L229       MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-14 05:51:54,667 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process
[2024-11-14 05:51:54,728 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 05:51:54,729 INFO  L255         TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 14 conjuncts are in the unsatisfiable core
[2024-11-14 05:51:54,731 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-14 05:51:58,726 INFO  L134       CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 05:51:58,726 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-14 05:52:01,467 INFO  L134       CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 05:52:01,467 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2024-11-14 05:52:01,467 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625021657]
[2024-11-14 05:52:01,467 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-11-14 05:52:01,467 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1555955672]
[2024-11-14 05:52:01,467 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1555955672] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-14 05:52:01,467 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [336920950]
[2024-11-14 05:52:01,469 INFO  L159        IcfgInterpreter]: Started Sifa with 44 locations of interest
[2024-11-14 05:52:01,469 INFO  L166        IcfgInterpreter]: Building call graph
[2024-11-14 05:52:01,469 INFO  L171        IcfgInterpreter]: Initial procedures are [ULTIMATE.start]
[2024-11-14 05:52:01,470 INFO  L176        IcfgInterpreter]: Starting interpretation
[2024-11-14 05:52:01,470 INFO  L197        IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs
[2024-11-14 05:52:05,496 INFO  L197        IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 129 for LOIs
[2024-11-14 05:52:05,611 INFO  L180        IcfgInterpreter]: Interpretation finished
[2024-11-14 05:52:55,475 INFO  L133             SifaRunner]: Sifa could not show that error location is unreachable, found '27463#(and (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 9223372036854775807) (<= 0 |ULTIMATE.start_main_~y~0#1|) (<= (+ (* |ULTIMATE.start_main_~X~0#1| |ULTIMATE.start_main_~y~0#1|) 4611686018427387905) 0) (<= 0 (+ |ULTIMATE.start_main_~Y~0#1| 2147483648)) (<= |ULTIMATE.start_main_~v~0#1| 9223372036854775807) (<= 1 ~counter~0) (<= 0 (+ |ULTIMATE.start_main_~yx~0#1| 4611686018427387904)) (<= 0 (+ |ULTIMATE.start_main_~X~0#1| 2147483648)) (<= ~counter~0 5) (<= 0 (+ (* |ULTIMATE.start_main_~X~0#1| |ULTIMATE.start_main_~y~0#1|) 9223372036854775808)) (<= |ULTIMATE.start_main_~Y~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~v~0#1| 8589934590)) (<= |ULTIMATE.start_main_~y~0#1| 9223372036854775807) (<= |ULTIMATE.start_main_~yx~0#1| 4611686018427387903) (= (* |ULTIMATE.start_main_~Y~0#1| |ULTIMATE.start_main_~x~0#1|) |ULTIMATE.start_main_~yx~0#1|))' at error location
[2024-11-14 05:52:55,475 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED
[2024-11-14 05:52:55,475 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-14 05:52:55,475 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11
[2024-11-14 05:52:55,475 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371025963]
[2024-11-14 05:52:55,475 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-14 05:52:55,476 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-11-14 05:52:55,476 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2024-11-14 05:52:55,477 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-11-14 05:52:55,478 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=378, Invalid=1428, Unknown=0, NotChecked=0, Total=1806
[2024-11-14 05:52:55,478 INFO  L87              Difference]: Start difference. First operand 544 states and 698 transitions. Second operand  has 12 states, 11 states have (on average 9.363636363636363) internal successors, (103), 12 states have internal predecessors, (103), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-14 05:53:13,825 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-14 05:53:13,825 INFO  L93              Difference]: Finished difference Result 800 states and 1008 transitions.
[2024-11-14 05:53:13,826 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. 
[2024-11-14 05:53:13,826 INFO  L78                 Accepts]: Start accepts. Automaton has  has 12 states, 11 states have (on average 9.363636363636363) internal successors, (103), 12 states have internal predecessors, (103), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 54
[2024-11-14 05:53:13,826 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-14 05:53:13,829 INFO  L225             Difference]: With dead ends: 800
[2024-11-14 05:53:13,829 INFO  L226             Difference]: Without dead ends: 799
[2024-11-14 05:53:13,830 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 111 SyntacticMatches, 8 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1262 ImplicationChecksByTransitivity, 56.0s TimeCoverageRelationStatistics Valid=597, Invalid=2595, Unknown=0, NotChecked=0, Total=3192
[2024-11-14 05:53:13,831 INFO  L432           NwaCegarLoop]: 80 mSDtfsCounter, 807 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 894 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 807 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time
[2024-11-14 05:53:13,831 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [807 Valid, 514 Invalid, 910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 894 Invalid, 0 Unknown, 0 Unchecked, 14.0s Time]
[2024-11-14 05:53:13,832 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 799 states.
[2024-11-14 05:53:13,882 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 799 to 641.
[2024-11-14 05:53:13,883 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 641 states, 582 states have (on average 1.407216494845361) internal successors, (819), 621 states have internal predecessors, (819), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12)
[2024-11-14 05:53:13,885 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 843 transitions.
[2024-11-14 05:53:13,885 INFO  L78                 Accepts]: Start accepts. Automaton has 641 states and 843 transitions. Word has length 54
[2024-11-14 05:53:13,885 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-14 05:53:13,886 INFO  L471      AbstractCegarLoop]: Abstraction has 641 states and 843 transitions.
[2024-11-14 05:53:13,886 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 12 states, 11 states have (on average 9.363636363636363) internal successors, (103), 12 states have internal predecessors, (103), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-14 05:53:13,886 INFO  L276                IsEmpty]: Start isEmpty. Operand 641 states and 843 transitions.
[2024-11-14 05:53:13,886 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 56
[2024-11-14 05:53:13,886 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-14 05:53:13,887 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-14 05:53:13,909 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0
[2024-11-14 05:53:14,090 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37
[2024-11-14 05:53:14,090 INFO  L396      AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] ===
[2024-11-14 05:53:14,091 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 05:53:14,091 INFO  L85        PathProgramCache]: Analyzing trace with hash -1386888281, now seen corresponding path program 1 times
[2024-11-14 05:53:14,091 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2024-11-14 05:53:14,091 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729686957]
[2024-11-14 05:53:14,091 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:53:14,091 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 05:53:14,100 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-14 05:53:14,101 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1383924666]
[2024-11-14 05:53:14,101 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:53:14,101 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-14 05:53:14,101 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3
[2024-11-14 05:53:14,103 INFO  L229       MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-14 05:53:14,105 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process
[2024-11-14 05:53:14,155 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 05:53:14,156 INFO  L255         TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 14 conjuncts are in the unsatisfiable core
[2024-11-14 05:53:14,156 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-14 05:53:17,915 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 05:53:17,915 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-14 05:53:20,668 INFO  L134       CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 05:53:20,668 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2024-11-14 05:53:20,668 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729686957]
[2024-11-14 05:53:20,668 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-11-14 05:53:20,668 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1383924666]
[2024-11-14 05:53:20,668 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1383924666] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-14 05:53:20,669 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1883155608]
[2024-11-14 05:53:20,670 INFO  L159        IcfgInterpreter]: Started Sifa with 44 locations of interest
[2024-11-14 05:53:20,670 INFO  L166        IcfgInterpreter]: Building call graph
[2024-11-14 05:53:20,671 INFO  L171        IcfgInterpreter]: Initial procedures are [ULTIMATE.start]
[2024-11-14 05:53:20,671 INFO  L176        IcfgInterpreter]: Starting interpretation
[2024-11-14 05:53:20,671 INFO  L197        IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs
[2024-11-14 05:53:24,157 INFO  L197        IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 129 for LOIs
[2024-11-14 05:53:24,228 INFO  L180        IcfgInterpreter]: Interpretation finished
[2024-11-14 05:54:12,564 INFO  L133             SifaRunner]: Sifa could not show that error location is unreachable, found '29385#(and (<= 1 |#StackHeapBarrier|) (<= 0 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 9223372036854775807) (<= |ULTIMATE.start_main_~X~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~y~0#1|) (<= 0 (+ |ULTIMATE.start_main_~Y~0#1| 2147483648)) (<= |ULTIMATE.start_main_~v~0#1| 9223372036854775807) (<= 4611686018427387904 (* |ULTIMATE.start_main_~X~0#1| |ULTIMATE.start_main_~y~0#1|)) (<= (* |ULTIMATE.start_main_~X~0#1| |ULTIMATE.start_main_~y~0#1|) 9223372036854775807) (<= 1 ~counter~0) (<= 0 (+ |ULTIMATE.start_main_~yx~0#1| 4611686018427387904)) (<= ~counter~0 5) (<= |ULTIMATE.start_main_~Y~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~v~0#1| 8589934590)) (<= |ULTIMATE.start_main_~yx~0#1| 4611686018427387903) (= (* |ULTIMATE.start_main_~Y~0#1| |ULTIMATE.start_main_~x~0#1|) |ULTIMATE.start_main_~yx~0#1|))' at error location
[2024-11-14 05:54:12,564 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED
[2024-11-14 05:54:12,564 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-14 05:54:12,564 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11
[2024-11-14 05:54:12,564 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721844726]
[2024-11-14 05:54:12,564 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-14 05:54:12,565 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-11-14 05:54:12,565 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2024-11-14 05:54:12,565 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-11-14 05:54:12,566 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=357, Invalid=1449, Unknown=0, NotChecked=0, Total=1806
[2024-11-14 05:54:12,566 INFO  L87              Difference]: Start difference. First operand 641 states and 843 transitions. Second operand  has 12 states, 11 states have (on average 9.545454545454545) internal successors, (105), 12 states have internal predecessors, (105), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-14 05:54:29,803 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-14 05:54:29,803 INFO  L93              Difference]: Finished difference Result 798 states and 1001 transitions.
[2024-11-14 05:54:29,804 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. 
[2024-11-14 05:54:29,804 INFO  L78                 Accepts]: Start accepts. Automaton has  has 12 states, 11 states have (on average 9.545454545454545) internal successors, (105), 12 states have internal predecessors, (105), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 55
[2024-11-14 05:54:29,804 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-14 05:54:29,807 INFO  L225             Difference]: With dead ends: 798
[2024-11-14 05:54:29,807 INFO  L226             Difference]: Without dead ends: 796
[2024-11-14 05:54:29,809 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 114 SyntacticMatches, 8 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1198 ImplicationChecksByTransitivity, 54.4s TimeCoverageRelationStatistics Valid=537, Invalid=2655, Unknown=0, NotChecked=0, Total=3192
[2024-11-14 05:54:29,809 INFO  L432           NwaCegarLoop]: 84 mSDtfsCounter, 847 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 787 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 847 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time
[2024-11-14 05:54:29,810 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [847 Valid, 498 Invalid, 806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 787 Invalid, 0 Unknown, 0 Unchecked, 12.7s Time]
[2024-11-14 05:54:29,811 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 796 states.
[2024-11-14 05:54:29,862 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 641.
[2024-11-14 05:54:29,863 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 641 states, 582 states have (on average 1.3917525773195876) internal successors, (810), 621 states have internal predecessors, (810), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12)
[2024-11-14 05:54:29,865 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 834 transitions.
[2024-11-14 05:54:29,867 INFO  L78                 Accepts]: Start accepts. Automaton has 641 states and 834 transitions. Word has length 55
[2024-11-14 05:54:29,868 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-14 05:54:29,868 INFO  L471      AbstractCegarLoop]: Abstraction has 641 states and 834 transitions.
[2024-11-14 05:54:29,868 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 12 states, 11 states have (on average 9.545454545454545) internal successors, (105), 12 states have internal predecessors, (105), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-11-14 05:54:29,868 INFO  L276                IsEmpty]: Start isEmpty. Operand 641 states and 834 transitions.
[2024-11-14 05:54:29,869 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 57
[2024-11-14 05:54:29,869 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-14 05:54:29,869 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-14 05:54:29,893 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0
[2024-11-14 05:54:30,069 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38
[2024-11-14 05:54:30,070 INFO  L396      AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 57 more)] ===
[2024-11-14 05:54:30,070 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-14 05:54:30,070 INFO  L85        PathProgramCache]: Analyzing trace with hash -43863680, now seen corresponding path program 1 times
[2024-11-14 05:54:30,070 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2024-11-14 05:54:30,070 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097755630]
[2024-11-14 05:54:30,070 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:54:30,070 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-14 05:54:30,080 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-11-14 05:54:30,080 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2058251396]
[2024-11-14 05:54:30,080 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-14 05:54:30,081 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-14 05:54:30,081 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3
[2024-11-14 05:54:30,083 INFO  L229       MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-14 05:54:30,086 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_418b67cc-3f49-4f5c-ac71-507b03ed5bf1/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process
[2024-11-14 05:54:30,143 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-14 05:54:30,144 INFO  L255         TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 23 conjuncts are in the unsatisfiable core
[2024-11-14 05:54:30,145 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-14 05:54:37,435 INFO  L134       CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 05:54:37,435 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-14 05:54:41,460 INFO  L134       CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-14 05:54:41,460 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2024-11-14 05:54:41,460 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097755630]
[2024-11-14 05:54:41,460 WARN  L311   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-11-14 05:54:41,460 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2058251396]
[2024-11-14 05:54:41,460 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2058251396] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-14 05:54:41,460 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1088229600]
[2024-11-14 05:54:41,462 INFO  L159        IcfgInterpreter]: Started Sifa with 44 locations of interest
[2024-11-14 05:54:41,462 INFO  L166        IcfgInterpreter]: Building call graph
[2024-11-14 05:54:41,462 INFO  L171        IcfgInterpreter]: Initial procedures are [ULTIMATE.start]
[2024-11-14 05:54:41,462 INFO  L176        IcfgInterpreter]: Starting interpretation
[2024-11-14 05:54:41,462 INFO  L197        IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs
[2024-11-14 05:54:45,010 INFO  L197        IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 129 for LOIs
[2024-11-14 05:54:45,083 INFO  L180        IcfgInterpreter]: Interpretation finished