./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cyclic_scheduler.3.prop1-func-interl.c --full-output --architecture 64bit


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


Checking for ERROR reachability
Using default analysis
Version d790fecc
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cf98fd-c94a-43ca-86e1-b56cb031634a/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cf98fd-c94a-43ca-86e1-b56cb031634a/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cf98fd-c94a-43ca-86e1-b56cb031634a/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cf98fd-c94a-43ca-86e1-b56cb031634a/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cyclic_scheduler.3.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cf98fd-c94a-43ca-86e1-b56cb031634a/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cf98fd-c94a-43ca-86e1-b56cb031634a/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fccd0da7383ea8f4dc1e1db10d13474c22452cb599ee4449d6079e41ee05e51d
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-11-28 04:26:01,351 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-28 04:26:01,442 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cf98fd-c94a-43ca-86e1-b56cb031634a/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf
[2024-11-28 04:26:01,448 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-28 04:26:01,449 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-28 04:26:01,480 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-28 04:26:01,481 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-28 04:26:01,481 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-28 04:26:01,481 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-28 04:26:01,482 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-28 04:26:01,483 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-28 04:26:01,484 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-28 04:26:01,484 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-28 04:26:01,484 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-28 04:26:01,484 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-28 04:26:01,484 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-28 04:26:01,484 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-28 04:26:01,485 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-28 04:26:01,485 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-28 04:26:01,485 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-28 04:26:01,485 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-28 04:26:01,485 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-28 04:26:01,486 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-28 04:26:01,486 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-28 04:26:01,487 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-28 04:26:01,487 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-28 04:26:01,487 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-28 04:26:01,487 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-28 04:26:01,487 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-28 04:26:01,487 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-28 04:26:01,488 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-28 04:26:01,488 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-28 04:26:01,489 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-28 04:26:01,489 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-28 04:26:01,489 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-28 04:26:01,489 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-28 04:26:01,489 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-28 04:26:01,489 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2024-11-28 04:26:01,490 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-28 04:26:01,490 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-28 04:26:01,490 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-28 04:26:01,490 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-28 04:26:01,490 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-28 04:26:01,490 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-28 04:26:01,491 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-28 04:26:01,491 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cf98fd-c94a-43ca-86e1-b56cb031634a/bin/uautomizer-verify-aQ6SnzHsRB
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fccd0da7383ea8f4dc1e1db10d13474c22452cb599ee4449d6079e41ee05e51d
[2024-11-28 04:26:01,841 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-28 04:26:01,859 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-28 04:26:01,864 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-28 04:26:01,866 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-28 04:26:01,866 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-28 04:26:01,870 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cf98fd-c94a-43ca-86e1-b56cb031634a/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cyclic_scheduler.3.prop1-func-interl.c
[2024-11-28 04:26:05,462 INFO  L533              CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cf98fd-c94a-43ca-86e1-b56cb031634a/bin/uautomizer-verify-aQ6SnzHsRB/data/328b76126/ec1d0facae174afebdc2bc3e9d1b2e78/FLAGb57494783
[2024-11-28 04:26:06,224 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-28 04:26:06,225 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cf98fd-c94a-43ca-86e1-b56cb031634a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cyclic_scheduler.3.prop1-func-interl.c
[2024-11-28 04:26:06,276 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cf98fd-c94a-43ca-86e1-b56cb031634a/bin/uautomizer-verify-aQ6SnzHsRB/data/328b76126/ec1d0facae174afebdc2bc3e9d1b2e78/FLAGb57494783
[2024-11-28 04:26:06,303 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cf98fd-c94a-43ca-86e1-b56cb031634a/bin/uautomizer-verify-aQ6SnzHsRB/data/328b76126/ec1d0facae174afebdc2bc3e9d1b2e78
[2024-11-28 04:26:06,307 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-28 04:26:06,310 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-28 04:26:06,312 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-28 04:26:06,312 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-28 04:26:06,319 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-28 04:26:06,320 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:26:06" (1/1) ...
[2024-11-28 04:26:06,321 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67d3fb4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:26:06, skipping insertion in model container
[2024-11-28 04:26:06,322 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:26:06" (1/1) ...
[2024-11-28 04:26:06,476 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-28 04:26:06,774 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cf98fd-c94a-43ca-86e1-b56cb031634a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cyclic_scheduler.3.prop1-func-interl.c[1183,1196]
[2024-11-28 04:26:07,864 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-28 04:26:07,877 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-28 04:26:07,891 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cf98fd-c94a-43ca-86e1-b56cb031634a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cyclic_scheduler.3.prop1-func-interl.c[1183,1196]
[2024-11-28 04:26:08,626 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-28 04:26:08,647 INFO  L204         MainTranslator]: Completed translation
[2024-11-28 04:26:08,648 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:26:08 WrapperNode
[2024-11-28 04:26:08,648 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-28 04:26:08,649 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-28 04:26:08,650 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-28 04:26:08,650 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-28 04:26:08,662 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:26:08" (1/1) ...
[2024-11-28 04:26:08,859 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:26:08" (1/1) ...
[2024-11-28 04:26:11,306 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 19612
[2024-11-28 04:26:11,307 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-28 04:26:11,308 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-28 04:26:11,308 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-28 04:26:11,308 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-28 04:26:11,320 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:26:08" (1/1) ...
[2024-11-28 04:26:11,320 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:26:08" (1/1) ...
[2024-11-28 04:26:12,180 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:26:08" (1/1) ...
[2024-11-28 04:26:12,600 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-28 04:26:12,601 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:26:08" (1/1) ...
[2024-11-28 04:26:12,601 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:26:08" (1/1) ...
[2024-11-28 04:26:13,327 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:26:08" (1/1) ...
[2024-11-28 04:26:13,388 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:26:08" (1/1) ...
[2024-11-28 04:26:13,503 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:26:08" (1/1) ...
[2024-11-28 04:26:13,597 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:26:08" (1/1) ...
[2024-11-28 04:26:13,679 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:26:08" (1/1) ...
[2024-11-28 04:26:14,345 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-28 04:26:14,347 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-28 04:26:14,347 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-28 04:26:14,347 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-28 04:26:14,348 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:26:08" (1/1) ...
[2024-11-28 04:26:14,358 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-28 04:26:14,376 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cf98fd-c94a-43ca-86e1-b56cb031634a/bin/uautomizer-verify-aQ6SnzHsRB/z3
[2024-11-28 04:26:14,393 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cf98fd-c94a-43ca-86e1-b56cb031634a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-28 04:26:14,396 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cf98fd-c94a-43ca-86e1-b56cb031634a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-28 04:26:14,425 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-28 04:26:14,426 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-28 04:26:14,426 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-28 04:26:14,426 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-28 04:26:15,971 INFO  L234             CfgBuilder]: Building ICFG
[2024-11-28 04:26:15,974 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-28 04:27:09,489 INFO  L?                        ?]: Removed 10884 outVars from TransFormulas that were not future-live.
[2024-11-28 04:27:09,489 INFO  L283             CfgBuilder]: Performing block encoding
[2024-11-28 04:27:09,614 INFO  L307             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-28 04:27:09,618 INFO  L312             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-28 04:27:09,619 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:27:09 BoogieIcfgContainer
[2024-11-28 04:27:09,621 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-28 04:27:09,623 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-28 04:27:09,624 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-28 04:27:09,630 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-28 04:27:09,632 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:26:06" (1/3) ...
[2024-11-28 04:27:09,633 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b2157a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:27:09, skipping insertion in model container
[2024-11-28 04:27:09,634 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:26:08" (2/3) ...
[2024-11-28 04:27:09,634 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b2157a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:27:09, skipping insertion in model container
[2024-11-28 04:27:09,635 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:27:09" (3/3) ...
[2024-11-28 04:27:09,637 INFO  L128   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cyclic_scheduler.3.prop1-func-interl.c
[2024-11-28 04:27:09,654 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-28 04:27:09,656 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.cyclic_scheduler.3.prop1-func-interl.c that has 1 procedures, 7002 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-11-28 04:27:09,861 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-28 04:27:09,874 INFO  L333      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1a3b0155, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-28 04:27:09,874 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-28 04:27:09,901 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 7002 states, 7000 states have (on average 1.4998571428571428) internal successors, (10499), 7001 states have internal predecessors, (10499), 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)
[2024-11-28 04:27:09,935 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 326
[2024-11-28 04:27:09,938 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-28 04:27:09,939 INFO  L218           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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-28 04:27:09,940 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-28 04:27:09,948 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 04:27:09,948 INFO  L85        PathProgramCache]: Analyzing trace with hash 131367883, now seen corresponding path program 1 times
[2024-11-28 04:27:09,956 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 04:27:09,957 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369184080]
[2024-11-28 04:27:09,957 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 04:27:09,958 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 04:27:10,502 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 04:27:12,100 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 04:27:12,101 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-28 04:27:12,103 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369184080]
[2024-11-28 04:27:12,104 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369184080] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-28 04:27:12,105 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-28 04:27:12,105 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-28 04:27:12,108 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246528476]
[2024-11-28 04:27:12,109 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-28 04:27:12,115 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-28 04:27:12,116 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-28 04:27:12,142 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-28 04:27:12,142 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-28 04:27:12,160 INFO  L87              Difference]: Start difference. First operand  has 7002 states, 7000 states have (on average 1.4998571428571428) internal successors, (10499), 7001 states have internal predecessors, (10499), 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) Second operand  has 4 states, 4 states have (on average 81.25) internal successors, (325), 4 states have internal predecessors, (325), 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)
[2024-11-28 04:27:12,697 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-28 04:27:12,698 INFO  L93              Difference]: Finished difference Result 13529 states and 20289 transitions.
[2024-11-28 04:27:12,699 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-28 04:27:12,700 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 81.25) internal successors, (325), 4 states have internal predecessors, (325), 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 325
[2024-11-28 04:27:12,705 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-28 04:27:12,760 INFO  L225             Difference]: With dead ends: 13529
[2024-11-28 04:27:12,763 INFO  L226             Difference]: Without dead ends: 7001
[2024-11-28 04:27:12,783 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-28 04:27:12,788 INFO  L435           NwaCegarLoop]: 10493 mSDtfsCounter, 0 mSDsluCounter, 20980 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31473 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-28 04:27:12,788 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31473 Invalid, 11 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-28 04:27:12,818 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7001 states.
[2024-11-28 04:27:13,030 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7001 to 7001.
[2024-11-28 04:27:13,046 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7001 states, 7000 states have (on average 1.4995714285714286) internal successors, (10497), 7000 states have internal predecessors, (10497), 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)
[2024-11-28 04:27:13,084 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7001 states to 7001 states and 10497 transitions.
[2024-11-28 04:27:13,086 INFO  L78                 Accepts]: Start accepts. Automaton has 7001 states and 10497 transitions. Word has length 325
[2024-11-28 04:27:13,087 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-28 04:27:13,087 INFO  L471      AbstractCegarLoop]: Abstraction has 7001 states and 10497 transitions.
[2024-11-28 04:27:13,088 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 81.25) internal successors, (325), 4 states have internal predecessors, (325), 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)
[2024-11-28 04:27:13,088 INFO  L276                IsEmpty]: Start isEmpty. Operand 7001 states and 10497 transitions.
[2024-11-28 04:27:13,093 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 327
[2024-11-28 04:27:13,093 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-28 04:27:13,093 INFO  L218           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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-28 04:27:13,094 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-28 04:27:13,094 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-28 04:27:13,095 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 04:27:13,095 INFO  L85        PathProgramCache]: Analyzing trace with hash -220865690, now seen corresponding path program 1 times
[2024-11-28 04:27:13,095 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 04:27:13,095 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634822539]
[2024-11-28 04:27:13,096 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 04:27:13,096 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 04:27:13,314 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 04:27:14,022 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 04:27:14,026 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-28 04:27:14,026 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634822539]
[2024-11-28 04:27:14,026 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634822539] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-28 04:27:14,026 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-28 04:27:14,026 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-28 04:27:14,026 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024738113]
[2024-11-28 04:27:14,026 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-28 04:27:14,028 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-28 04:27:14,028 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-28 04:27:14,029 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-28 04:27:14,031 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-28 04:27:14,032 INFO  L87              Difference]: Start difference. First operand 7001 states and 10497 transitions. Second operand  has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 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)
[2024-11-28 04:27:14,348 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-28 04:27:14,348 INFO  L93              Difference]: Finished difference Result 13530 states and 20287 transitions.
[2024-11-28 04:27:14,348 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-28 04:27:14,349 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 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 326
[2024-11-28 04:27:14,349 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-28 04:27:14,374 INFO  L225             Difference]: With dead ends: 13530
[2024-11-28 04:27:14,374 INFO  L226             Difference]: Without dead ends: 7003
[2024-11-28 04:27:14,382 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-28 04:27:14,385 INFO  L435           NwaCegarLoop]: 10493 mSDtfsCounter, 0 mSDsluCounter, 20976 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31469 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-28 04:27:14,385 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31469 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-28 04:27:14,398 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7003 states.
[2024-11-28 04:27:14,519 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7003 to 7003.
[2024-11-28 04:27:14,535 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7003 states, 7002 states have (on average 1.4994287346472437) internal successors, (10499), 7002 states have internal predecessors, (10499), 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)
[2024-11-28 04:27:14,571 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7003 states to 7003 states and 10499 transitions.
[2024-11-28 04:27:14,571 INFO  L78                 Accepts]: Start accepts. Automaton has 7003 states and 10499 transitions. Word has length 326
[2024-11-28 04:27:14,573 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-28 04:27:14,573 INFO  L471      AbstractCegarLoop]: Abstraction has 7003 states and 10499 transitions.
[2024-11-28 04:27:14,574 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 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)
[2024-11-28 04:27:14,578 INFO  L276                IsEmpty]: Start isEmpty. Operand 7003 states and 10499 transitions.
[2024-11-28 04:27:14,583 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 328
[2024-11-28 04:27:14,587 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-28 04:27:14,587 INFO  L218           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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-28 04:27:14,587 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-28 04:27:14,587 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-28 04:27:14,588 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 04:27:14,588 INFO  L85        PathProgramCache]: Analyzing trace with hash 645134340, now seen corresponding path program 1 times
[2024-11-28 04:27:14,588 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 04:27:14,588 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654556504]
[2024-11-28 04:27:14,589 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 04:27:14,589 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 04:27:14,779 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 04:27:15,371 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 04:27:15,373 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-28 04:27:15,373 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654556504]
[2024-11-28 04:27:15,373 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654556504] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-28 04:27:15,373 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-28 04:27:15,374 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-28 04:27:15,374 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219666099]
[2024-11-28 04:27:15,374 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-28 04:27:15,375 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-28 04:27:15,376 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-28 04:27:15,377 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-28 04:27:15,377 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-28 04:27:15,378 INFO  L87              Difference]: Start difference. First operand 7003 states and 10499 transitions. Second operand  has 4 states, 4 states have (on average 81.75) internal successors, (327), 4 states have internal predecessors, (327), 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)
[2024-11-28 04:27:15,671 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-28 04:27:15,671 INFO  L93              Difference]: Finished difference Result 13534 states and 20291 transitions.
[2024-11-28 04:27:15,672 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-28 04:27:15,672 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 81.75) internal successors, (327), 4 states have internal predecessors, (327), 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 327
[2024-11-28 04:27:15,674 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-28 04:27:15,700 INFO  L225             Difference]: With dead ends: 13534
[2024-11-28 04:27:15,701 INFO  L226             Difference]: Without dead ends: 7005
[2024-11-28 04:27:15,708 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-28 04:27:15,710 INFO  L435           NwaCegarLoop]: 10493 mSDtfsCounter, 0 mSDsluCounter, 20970 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31463 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-28 04:27:15,712 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31463 Invalid, 21 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-28 04:27:15,724 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7005 states.
[2024-11-28 04:27:15,842 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7005 to 7005.
[2024-11-28 04:27:15,853 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7005 states, 7004 states have (on average 1.4992861222158766) internal successors, (10501), 7004 states have internal predecessors, (10501), 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)
[2024-11-28 04:27:15,888 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7005 states to 7005 states and 10501 transitions.
[2024-11-28 04:27:15,892 INFO  L78                 Accepts]: Start accepts. Automaton has 7005 states and 10501 transitions. Word has length 327
[2024-11-28 04:27:15,893 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-28 04:27:15,893 INFO  L471      AbstractCegarLoop]: Abstraction has 7005 states and 10501 transitions.
[2024-11-28 04:27:15,893 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 81.75) internal successors, (327), 4 states have internal predecessors, (327), 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)
[2024-11-28 04:27:15,893 INFO  L276                IsEmpty]: Start isEmpty. Operand 7005 states and 10501 transitions.
[2024-11-28 04:27:15,899 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 329
[2024-11-28 04:27:15,903 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-28 04:27:15,903 INFO  L218           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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-28 04:27:15,903 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-28 04:27:15,904 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-28 04:27:15,904 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 04:27:15,905 INFO  L85        PathProgramCache]: Analyzing trace with hash -566783059, now seen corresponding path program 1 times
[2024-11-28 04:27:15,905 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 04:27:15,905 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190595747]
[2024-11-28 04:27:15,905 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 04:27:15,906 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 04:27:16,097 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 04:27:16,835 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 04:27:16,838 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-28 04:27:16,838 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190595747]
[2024-11-28 04:27:16,838 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190595747] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-28 04:27:16,838 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-28 04:27:16,838 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-28 04:27:16,839 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134240800]
[2024-11-28 04:27:16,839 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-28 04:27:16,839 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-28 04:27:16,839 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-28 04:27:16,840 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-28 04:27:16,840 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-28 04:27:16,841 INFO  L87              Difference]: Start difference. First operand 7005 states and 10501 transitions. Second operand  has 5 states, 5 states have (on average 65.6) internal successors, (328), 5 states have internal predecessors, (328), 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)
[2024-11-28 04:27:17,300 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-28 04:27:17,301 INFO  L93              Difference]: Finished difference Result 17885 states and 26812 transitions.
[2024-11-28 04:27:17,301 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-28 04:27:17,301 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 65.6) internal successors, (328), 5 states have internal predecessors, (328), 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 328
[2024-11-28 04:27:17,304 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-28 04:27:17,350 INFO  L225             Difference]: With dead ends: 17885
[2024-11-28 04:27:17,350 INFO  L226             Difference]: Without dead ends: 11354
[2024-11-28 04:27:17,360 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-28 04:27:17,361 INFO  L435           NwaCegarLoop]: 10489 mSDtfsCounter, 6913 mSDsluCounter, 30752 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6913 SdHoareTripleChecker+Valid, 41241 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-28 04:27:17,362 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [6913 Valid, 41241 Invalid, 30 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-28 04:27:17,381 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11354 states.
[2024-11-28 04:27:17,544 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11354 to 7165.
[2024-11-28 04:27:17,555 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7165 states, 7164 states have (on average 1.4993020658849805) internal successors, (10741), 7164 states have internal predecessors, (10741), 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)
[2024-11-28 04:27:17,583 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7165 states to 7165 states and 10741 transitions.
[2024-11-28 04:27:17,584 INFO  L78                 Accepts]: Start accepts. Automaton has 7165 states and 10741 transitions. Word has length 328
[2024-11-28 04:27:17,584 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-28 04:27:17,585 INFO  L471      AbstractCegarLoop]: Abstraction has 7165 states and 10741 transitions.
[2024-11-28 04:27:17,585 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 65.6) internal successors, (328), 5 states have internal predecessors, (328), 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)
[2024-11-28 04:27:17,585 INFO  L276                IsEmpty]: Start isEmpty. Operand 7165 states and 10741 transitions.
[2024-11-28 04:27:17,960 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3592
[2024-11-28 04:27:17,960 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-28 04:27:17,962 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2024-11-28 04:27:17,963 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-28 04:27:17,963 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-28 04:27:17,965 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 04:27:17,967 INFO  L85        PathProgramCache]: Analyzing trace with hash -316577823, now seen corresponding path program 1 times
[2024-11-28 04:27:17,967 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 04:27:17,968 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955421098]
[2024-11-28 04:27:17,968 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 04:27:17,969 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 04:27:47,183 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 04:28:00,745 INFO  L134       CoverageAnalysis]: Checked inductivity of 86 backedges. 6 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 04:28:00,745 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-28 04:28:00,746 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955421098]
[2024-11-28 04:28:00,746 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955421098] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-28 04:28:00,746 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1049453057]
[2024-11-28 04:28:00,747 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 04:28:00,747 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-28 04:28:00,747 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cf98fd-c94a-43ca-86e1-b56cb031634a/bin/uautomizer-verify-aQ6SnzHsRB/z3
[2024-11-28 04:28:00,752 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cf98fd-c94a-43ca-86e1-b56cb031634a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-28 04:28:00,824 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cf98fd-c94a-43ca-86e1-b56cb031634a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-28 04:28:08,729 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 04:28:08,818 INFO  L256         TraceCheckSpWp]: Trace formula consists of 15622 conjuncts, 80 conjuncts are in the unsatisfiable core
[2024-11-28 04:28:09,036 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-11-28 04:28:37,622 INFO  L134       CoverageAnalysis]: Checked inductivity of 86 backedges. 4 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 04:28:37,622 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2024-11-28 04:29:09,172 INFO  L134       CoverageAnalysis]: Checked inductivity of 86 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 04:29:09,173 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1049453057] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-28 04:29:09,173 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences.
[2024-11-28 04:29:09,175 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [6, 27] total 45
[2024-11-28 04:29:09,175 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267817867]
[2024-11-28 04:29:09,175 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-28 04:29:09,180 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2024-11-28 04:29:09,180 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-28 04:29:09,186 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2024-11-28 04:29:09,188 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=211, Invalid=1769, Unknown=0, NotChecked=0, Total=1980
[2024-11-28 04:29:09,190 INFO  L87              Difference]: Start difference. First operand 7165 states and 10741 transitions. Second operand  has 16 states, 16 states have (on average 224.4375) internal successors, (3591), 16 states have internal predecessors, (3591), 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)
[2024-11-28 04:29:57,270 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-28 04:29:57,270 INFO  L93              Difference]: Finished difference Result 29008 states and 43492 transitions.
[2024-11-28 04:29:57,271 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. 
[2024-11-28 04:29:57,272 INFO  L78                 Accepts]: Start accepts. Automaton has  has 16 states, 16 states have (on average 224.4375) internal successors, (3591), 16 states have internal predecessors, (3591), 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 3591
[2024-11-28 04:29:57,278 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-28 04:29:57,320 INFO  L225             Difference]: With dead ends: 29008
[2024-11-28 04:29:57,320 INFO  L226             Difference]: Without dead ends: 22477
[2024-11-28 04:29:57,331 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 7203 GetRequests, 7146 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 955 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=327, Invalid=3095, Unknown=0, NotChecked=0, Total=3422
[2024-11-28 04:29:57,331 INFO  L435           NwaCegarLoop]: 13487 mSDtfsCounter, 25568 mSDsluCounter, 159519 mSDsCounter, 0 mSdLazyCounter, 53134 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25568 SdHoareTripleChecker+Valid, 173006 SdHoareTripleChecker+Invalid, 53140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.6s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 53134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.5s IncrementalHoareTripleChecker+Time
[2024-11-28 04:29:57,332 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [25568 Valid, 173006 Invalid, 53140 Unknown, 0 Unchecked, 0.6s Time], IncrementalHoareTripleChecker [6 Valid, 53134 Invalid, 0 Unknown, 0 Unchecked, 45.5s Time]
[2024-11-28 04:29:57,355 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 22477 states.
[2024-11-28 04:29:57,691 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 22477 to 13528.
[2024-11-28 04:29:57,711 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13528 states, 13527 states have (on average 1.4995934057810305) internal successors, (20285), 13527 states have internal predecessors, (20285), 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)
[2024-11-28 04:29:57,741 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13528 states to 13528 states and 20285 transitions.
[2024-11-28 04:29:57,742 INFO  L78                 Accepts]: Start accepts. Automaton has 13528 states and 20285 transitions. Word has length 3591
[2024-11-28 04:29:57,748 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-28 04:29:57,749 INFO  L471      AbstractCegarLoop]: Abstraction has 13528 states and 20285 transitions.
[2024-11-28 04:29:57,750 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 16 states, 16 states have (on average 224.4375) internal successors, (3591), 16 states have internal predecessors, (3591), 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)
[2024-11-28 04:29:57,750 INFO  L276                IsEmpty]: Start isEmpty. Operand 13528 states and 20285 transitions.
[2024-11-28 04:29:57,999 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3593
[2024-11-28 04:29:57,999 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-28 04:29:58,001 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2024-11-28 04:29:58,064 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cf98fd-c94a-43ca-86e1-b56cb031634a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-28 04:29:58,202 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cf98fd-c94a-43ca-86e1-b56cb031634a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-28 04:29:58,203 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-28 04:29:58,205 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 04:29:58,207 INFO  L85        PathProgramCache]: Analyzing trace with hash 340569260, now seen corresponding path program 1 times
[2024-11-28 04:29:58,207 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 04:29:58,207 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685003321]
[2024-11-28 04:29:58,209 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 04:29:58,210 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 04:30:25,237 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 04:30:37,501 INFO  L134       CoverageAnalysis]: Checked inductivity of 86 backedges. 6 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 04:30:37,501 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-28 04:30:37,501 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685003321]
[2024-11-28 04:30:37,501 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685003321] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-28 04:30:37,501 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [312056084]
[2024-11-28 04:30:37,503 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 04:30:37,503 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-28 04:30:37,504 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cf98fd-c94a-43ca-86e1-b56cb031634a/bin/uautomizer-verify-aQ6SnzHsRB/z3
[2024-11-28 04:30:37,506 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cf98fd-c94a-43ca-86e1-b56cb031634a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-28 04:30:37,517 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cf98fd-c94a-43ca-86e1-b56cb031634a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-28 04:30:45,522 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 04:30:45,614 INFO  L256         TraceCheckSpWp]: Trace formula consists of 15623 conjuncts, 132 conjuncts are in the unsatisfiable core
[2024-11-28 04:30:45,710 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-11-28 04:31:06,287 INFO  L134       CoverageAnalysis]: Checked inductivity of 86 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 04:31:06,287 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-28 04:31:06,287 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [312056084] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-28 04:31:06,287 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-28 04:31:06,288 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [47] imperfect sequences [6] total 51
[2024-11-28 04:31:06,288 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630907856]
[2024-11-28 04:31:06,288 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-28 04:31:06,291 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 47 states
[2024-11-28 04:31:06,292 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-28 04:31:06,295 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants.
[2024-11-28 04:31:06,295 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=2383, Unknown=0, NotChecked=0, Total=2550
[2024-11-28 04:31:06,297 INFO  L87              Difference]: Start difference. First operand 13528 states and 20285 transitions. Second operand  has 47 states, 47 states have (on average 76.42553191489361) internal successors, (3592), 47 states have internal predecessors, (3592), 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)
[2024-11-28 04:31:17,055 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-28 04:31:17,055 INFO  L93              Difference]: Finished difference Result 77659 states and 116459 transitions.
[2024-11-28 04:31:17,055 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. 
[2024-11-28 04:31:17,056 INFO  L78                 Accepts]: Start accepts. Automaton has  has 47 states, 47 states have (on average 76.42553191489361) internal successors, (3592), 47 states have internal predecessors, (3592), 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 3592
[2024-11-28 04:31:17,062 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-28 04:31:17,228 INFO  L225             Difference]: With dead ends: 77659
[2024-11-28 04:31:17,229 INFO  L226             Difference]: Without dead ends: 64765
[2024-11-28 04:31:17,243 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3648 GetRequests, 3550 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2011 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=730, Invalid=9170, Unknown=0, NotChecked=0, Total=9900
[2024-11-28 04:31:17,245 INFO  L435           NwaCegarLoop]: 27270 mSDtfsCounter, 61974 mSDsluCounter, 763130 mSDsCounter, 0 mSdLazyCounter, 3961 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61974 SdHoareTripleChecker+Valid, 790400 SdHoareTripleChecker+Invalid, 3988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.4s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 3961 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time
[2024-11-28 04:31:17,245 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [61974 Valid, 790400 Invalid, 3988 Unknown, 0 Unchecked, 1.4s Time], IncrementalHoareTripleChecker [27 Valid, 3961 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time]
[2024-11-28 04:31:17,299 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 64765 states.
[2024-11-28 04:31:17,991 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 64765 to 27034.
[2024-11-28 04:31:18,025 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 27034 states, 27033 states have (on average 1.4994266267154959) internal successors, (40534), 27033 states have internal predecessors, (40534), 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)
[2024-11-28 04:31:18,086 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 27034 states to 27034 states and 40534 transitions.
[2024-11-28 04:31:18,087 INFO  L78                 Accepts]: Start accepts. Automaton has 27034 states and 40534 transitions. Word has length 3592
[2024-11-28 04:31:18,093 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-28 04:31:18,093 INFO  L471      AbstractCegarLoop]: Abstraction has 27034 states and 40534 transitions.
[2024-11-28 04:31:18,094 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 47 states, 47 states have (on average 76.42553191489361) internal successors, (3592), 47 states have internal predecessors, (3592), 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)
[2024-11-28 04:31:18,094 INFO  L276                IsEmpty]: Start isEmpty. Operand 27034 states and 40534 transitions.
[2024-11-28 04:31:18,232 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3593
[2024-11-28 04:31:18,232 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-28 04:31:18,234 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2024-11-28 04:31:18,293 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cf98fd-c94a-43ca-86e1-b56cb031634a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-11-28 04:31:18,435 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cf98fd-c94a-43ca-86e1-b56cb031634a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5
[2024-11-28 04:31:18,435 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-28 04:31:18,437 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 04:31:18,438 INFO  L85        PathProgramCache]: Analyzing trace with hash -1493923168, now seen corresponding path program 1 times
[2024-11-28 04:31:18,438 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 04:31:18,439 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172020426]
[2024-11-28 04:31:18,439 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 04:31:18,440 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 04:31:46,022 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 04:31:55,305 INFO  L134       CoverageAnalysis]: Checked inductivity of 86 backedges. 6 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 04:31:55,306 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-28 04:31:55,306 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172020426]
[2024-11-28 04:31:55,306 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172020426] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-28 04:31:55,306 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [82920675]
[2024-11-28 04:31:55,307 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 04:31:55,307 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-28 04:31:55,307 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cf98fd-c94a-43ca-86e1-b56cb031634a/bin/uautomizer-verify-aQ6SnzHsRB/z3
[2024-11-28 04:31:55,310 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cf98fd-c94a-43ca-86e1-b56cb031634a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-28 04:31:55,312 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cf98fd-c94a-43ca-86e1-b56cb031634a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-28 04:32:02,874 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 04:32:03,001 INFO  L256         TraceCheckSpWp]: Trace formula consists of 15625 conjuncts, 198 conjuncts are in the unsatisfiable core
[2024-11-28 04:32:03,064 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-11-28 04:32:48,692 INFO  L134       CoverageAnalysis]: Checked inductivity of 86 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 04:32:48,693 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-28 04:32:48,693 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [82920675] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-28 04:32:48,693 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-28 04:32:48,693 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [6] total 38
[2024-11-28 04:32:48,694 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596219788]
[2024-11-28 04:32:48,694 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-28 04:32:48,696 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 34 states
[2024-11-28 04:32:48,696 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-28 04:32:48,700 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants.
[2024-11-28 04:32:48,700 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=1240, Unknown=0, NotChecked=0, Total=1406
[2024-11-28 04:32:48,702 INFO  L87              Difference]: Start difference. First operand 27034 states and 40534 transitions. Second operand  has 34 states, 34 states have (on average 105.6470588235294) internal successors, (3592), 34 states have internal predecessors, (3592), 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)
[2024-11-28 04:33:28,564 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-28 04:33:28,564 INFO  L93              Difference]: Finished difference Result 71801 states and 107656 transitions.
[2024-11-28 04:33:28,565 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. 
[2024-11-28 04:33:28,566 INFO  L78                 Accepts]: Start accepts. Automaton has  has 34 states, 34 states have (on average 105.6470588235294) internal successors, (3592), 34 states have internal predecessors, (3592), 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 3592
[2024-11-28 04:33:28,572 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-28 04:33:28,673 INFO  L225             Difference]: With dead ends: 71801
[2024-11-28 04:33:28,673 INFO  L226             Difference]: Without dead ends: 45241
[2024-11-28 04:33:28,700 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3630 GetRequests, 3562 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1092 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=473, Invalid=4357, Unknown=0, NotChecked=0, Total=4830
[2024-11-28 04:33:28,702 INFO  L435           NwaCegarLoop]: 10579 mSDtfsCounter, 58681 mSDsluCounter, 168634 mSDsCounter, 0 mSdLazyCounter, 50191 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58681 SdHoareTripleChecker+Valid, 179213 SdHoareTripleChecker+Invalid, 50199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.6s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 50191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.6s IncrementalHoareTripleChecker+Time
[2024-11-28 04:33:28,702 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [58681 Valid, 179213 Invalid, 50199 Unknown, 0 Unchecked, 0.6s Time], IncrementalHoareTripleChecker [8 Valid, 50191 Invalid, 0 Unknown, 0 Unchecked, 35.6s Time]
[2024-11-28 04:33:28,733 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 45241 states.
[2024-11-28 04:33:29,124 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 45241 to 31431.
[2024-11-28 04:33:29,155 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 31431 states, 31430 states have (on average 1.4993954820235444) internal successors, (47126), 31430 states have internal predecessors, (47126), 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)
[2024-11-28 04:33:29,202 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 31431 states to 31431 states and 47126 transitions.
[2024-11-28 04:33:29,202 INFO  L78                 Accepts]: Start accepts. Automaton has 31431 states and 47126 transitions. Word has length 3592
[2024-11-28 04:33:29,205 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-28 04:33:29,205 INFO  L471      AbstractCegarLoop]: Abstraction has 31431 states and 47126 transitions.
[2024-11-28 04:33:29,206 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 34 states, 34 states have (on average 105.6470588235294) internal successors, (3592), 34 states have internal predecessors, (3592), 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)
[2024-11-28 04:33:29,206 INFO  L276                IsEmpty]: Start isEmpty. Operand 31431 states and 47126 transitions.
[2024-11-28 04:33:29,443 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3593
[2024-11-28 04:33:29,443 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-28 04:33:29,445 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2024-11-28 04:33:29,508 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cf98fd-c94a-43ca-86e1-b56cb031634a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2024-11-28 04:33:29,646 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cf98fd-c94a-43ca-86e1-b56cb031634a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6
[2024-11-28 04:33:29,646 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-28 04:33:29,651 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 04:33:29,653 INFO  L85        PathProgramCache]: Analyzing trace with hash -53998593, now seen corresponding path program 1 times
[2024-11-28 04:33:29,653 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 04:33:29,653 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692788565]
[2024-11-28 04:33:29,654 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 04:33:29,655 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 04:33:34,353 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 04:33:41,553 INFO  L134       CoverageAnalysis]: Checked inductivity of 86 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 04:33:41,553 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-28 04:33:41,554 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692788565]
[2024-11-28 04:33:41,554 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692788565] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-28 04:33:41,554 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-28 04:33:41,554 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-28 04:33:41,555 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683909792]
[2024-11-28 04:33:41,555 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-28 04:33:41,558 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-28 04:33:41,558 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-28 04:33:41,561 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-28 04:33:41,561 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-28 04:33:41,562 INFO  L87              Difference]: Start difference. First operand 31431 states and 47126 transitions. Second operand  has 5 states, 5 states have (on average 718.4) internal successors, (3592), 5 states have internal predecessors, (3592), 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)
[2024-11-28 04:33:42,008 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-28 04:33:42,008 INFO  L93              Difference]: Finished difference Result 80104 states and 120103 transitions.
[2024-11-28 04:33:42,008 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-28 04:33:42,009 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 718.4) internal successors, (3592), 5 states have internal predecessors, (3592), 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 3592
[2024-11-28 04:33:42,010 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-28 04:33:42,101 INFO  L225             Difference]: With dead ends: 80104
[2024-11-28 04:33:42,101 INFO  L226             Difference]: Without dead ends: 49147
[2024-11-28 04:33:42,161 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-28 04:33:42,162 INFO  L435           NwaCegarLoop]: 10489 mSDtfsCounter, 6826 mSDsluCounter, 30753 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6826 SdHoareTripleChecker+Valid, 41242 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-28 04:33:42,167 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [6826 Valid, 41242 Invalid, 29 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-28 04:33:42,247 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 49147 states.
[2024-11-28 04:33:42,837 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 49147 to 31743.
[2024-11-28 04:33:42,864 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 31743 states, 31742 states have (on average 1.4992754079768131) internal successors, (47590), 31742 states have internal predecessors, (47590), 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)
[2024-11-28 04:33:42,915 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 31743 states to 31743 states and 47590 transitions.
[2024-11-28 04:33:42,915 INFO  L78                 Accepts]: Start accepts. Automaton has 31743 states and 47590 transitions. Word has length 3592
[2024-11-28 04:33:42,916 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-28 04:33:42,916 INFO  L471      AbstractCegarLoop]: Abstraction has 31743 states and 47590 transitions.
[2024-11-28 04:33:42,917 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 718.4) internal successors, (3592), 5 states have internal predecessors, (3592), 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)
[2024-11-28 04:33:42,917 INFO  L276                IsEmpty]: Start isEmpty. Operand 31743 states and 47590 transitions.
[2024-11-28 04:33:43,086 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3594
[2024-11-28 04:33:43,086 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-28 04:33:43,089 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-28 04:33:43,092 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-28 04:33:43,092 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-28 04:33:43,094 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 04:33:43,099 INFO  L85        PathProgramCache]: Analyzing trace with hash -2126757962, now seen corresponding path program 1 times
[2024-11-28 04:33:43,100 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 04:33:43,100 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240329245]
[2024-11-28 04:33:43,101 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 04:33:43,101 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 04:33:48,130 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 04:33:56,659 INFO  L134       CoverageAnalysis]: Checked inductivity of 86 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 04:33:56,659 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-28 04:33:56,659 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240329245]
[2024-11-28 04:33:56,659 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240329245] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-28 04:33:56,659 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-28 04:33:56,660 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-28 04:33:56,660 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187764854]
[2024-11-28 04:33:56,660 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-28 04:33:56,664 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-28 04:33:56,664 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-28 04:33:56,667 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-28 04:33:56,667 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-28 04:33:56,668 INFO  L87              Difference]: Start difference. First operand 31743 states and 47590 transitions. Second operand  has 4 states, 4 states have (on average 898.25) internal successors, (3593), 4 states have internal predecessors, (3593), 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)
[2024-11-28 04:33:56,951 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-28 04:33:56,952 INFO  L93              Difference]: Finished difference Result 62736 states and 94060 transitions.
[2024-11-28 04:33:56,952 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-28 04:33:56,953 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 898.25) internal successors, (3593), 4 states have internal predecessors, (3593), 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 3593
[2024-11-28 04:33:56,955 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-28 04:33:56,991 INFO  L225             Difference]: With dead ends: 62736
[2024-11-28 04:33:56,991 INFO  L226             Difference]: Without dead ends: 31779
[2024-11-28 04:33:57,016 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-28 04:33:57,017 INFO  L435           NwaCegarLoop]: 10493 mSDtfsCounter, 4 mSDsluCounter, 20970 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 31463 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-28 04:33:57,017 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 31463 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-28 04:33:57,048 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 31779 states.
[2024-11-28 04:33:57,777 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 31779 to 31779.
[2024-11-28 04:33:57,800 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 31779 states, 31778 states have (on average 1.4990874189690981) internal successors, (47638), 31778 states have internal predecessors, (47638), 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)
[2024-11-28 04:33:57,846 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 31779 states to 31779 states and 47638 transitions.
[2024-11-28 04:33:57,846 INFO  L78                 Accepts]: Start accepts. Automaton has 31779 states and 47638 transitions. Word has length 3593
[2024-11-28 04:33:57,847 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-28 04:33:57,847 INFO  L471      AbstractCegarLoop]: Abstraction has 31779 states and 47638 transitions.
[2024-11-28 04:33:57,848 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 898.25) internal successors, (3593), 4 states have internal predecessors, (3593), 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)
[2024-11-28 04:33:57,849 INFO  L276                IsEmpty]: Start isEmpty. Operand 31779 states and 47638 transitions.
[2024-11-28 04:33:57,961 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3594
[2024-11-28 04:33:57,961 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-28 04:33:57,963 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2024-11-28 04:33:57,963 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-11-28 04:33:57,964 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-28 04:33:57,965 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 04:33:57,966 INFO  L85        PathProgramCache]: Analyzing trace with hash -596160904, now seen corresponding path program 1 times
[2024-11-28 04:33:57,967 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 04:33:57,967 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822041969]
[2024-11-28 04:33:57,968 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 04:33:57,968 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 04:34:27,876 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 04:34:38,916 INFO  L134       CoverageAnalysis]: Checked inductivity of 86 backedges. 6 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 04:34:38,916 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-28 04:34:38,917 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822041969]
[2024-11-28 04:34:38,917 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822041969] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-28 04:34:38,917 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [59444513]
[2024-11-28 04:34:38,917 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 04:34:38,918 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-28 04:34:38,918 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cf98fd-c94a-43ca-86e1-b56cb031634a/bin/uautomizer-verify-aQ6SnzHsRB/z3
[2024-11-28 04:34:38,920 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cf98fd-c94a-43ca-86e1-b56cb031634a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-28 04:34:38,942 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cf98fd-c94a-43ca-86e1-b56cb031634a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-28 04:34:50,755 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 04:34:50,848 INFO  L256         TraceCheckSpWp]: Trace formula consists of 15628 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-11-28 04:34:50,886 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-11-28 04:35:02,672 INFO  L134       CoverageAnalysis]: Checked inductivity of 86 backedges. 6 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 04:35:02,672 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2024-11-28 04:35:15,865 INFO  L134       CoverageAnalysis]: Checked inductivity of 86 backedges. 6 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 04:35:15,865 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [59444513] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-28 04:35:15,865 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-28 04:35:15,866 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10
[2024-11-28 04:35:15,866 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770070845]
[2024-11-28 04:35:15,866 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-28 04:35:15,872 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-28 04:35:15,872 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-28 04:35:15,876 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-28 04:35:15,876 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90
[2024-11-28 04:35:15,877 INFO  L87              Difference]: Start difference. First operand 31779 states and 47638 transitions. Second operand  has 10 states, 10 states have (on average 391.2) internal successors, (3912), 10 states have internal predecessors, (3912), 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)
[2024-11-28 04:35:22,138 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-28 04:35:22,138 INFO  L93              Difference]: Finished difference Result 141599 states and 212275 transitions.
[2024-11-28 04:35:22,138 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-11-28 04:35:22,139 INFO  L78                 Accepts]: Start accepts. Automaton has  has 10 states, 10 states have (on average 391.2) internal successors, (3912), 10 states have internal predecessors, (3912), 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 3593
[2024-11-28 04:35:22,142 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-28 04:35:22,182 INFO  L225             Difference]: With dead ends: 141599
[2024-11-28 04:35:22,183 INFO  L226             Difference]: Without dead ends: 58952
[2024-11-28 04:35:22,223 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 7192 GetRequests, 7183 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110
[2024-11-28 04:35:22,223 INFO  L435           NwaCegarLoop]: 10142 mSDtfsCounter, 27780 mSDsluCounter, 57046 mSDsCounter, 0 mSdLazyCounter, 5178 mSolverCounterSat, 801 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27780 SdHoareTripleChecker+Valid, 67188 SdHoareTripleChecker+Invalid, 5979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 801 IncrementalHoareTripleChecker+Valid, 5178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time
[2024-11-28 04:35:22,224 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [27780 Valid, 67188 Invalid, 5979 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [801 Valid, 5178 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time]
[2024-11-28 04:35:22,269 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 58952 states.
[2024-11-28 04:35:22,816 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 58952 to 31779.
[2024-11-28 04:35:22,839 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 31779 states, 31778 states have (on average 1.4990559506576877) internal successors, (47637), 31778 states have internal predecessors, (47637), 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)
[2024-11-28 04:35:22,871 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 31779 states to 31779 states and 47637 transitions.
[2024-11-28 04:35:22,871 INFO  L78                 Accepts]: Start accepts. Automaton has 31779 states and 47637 transitions. Word has length 3593
[2024-11-28 04:35:22,872 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-28 04:35:22,872 INFO  L471      AbstractCegarLoop]: Abstraction has 31779 states and 47637 transitions.
[2024-11-28 04:35:22,873 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 10 states have (on average 391.2) internal successors, (3912), 10 states have internal predecessors, (3912), 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)
[2024-11-28 04:35:22,873 INFO  L276                IsEmpty]: Start isEmpty. Operand 31779 states and 47637 transitions.
[2024-11-28 04:35:22,981 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3595
[2024-11-28 04:35:22,981 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-28 04:35:22,982 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2024-11-28 04:35:23,038 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cf98fd-c94a-43ca-86e1-b56cb031634a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-11-28 04:35:23,183 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33cf98fd-c94a-43ca-86e1-b56cb031634a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9
[2024-11-28 04:35:23,183 INFO  L396      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-28 04:35:23,184 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 04:35:23,185 INFO  L85        PathProgramCache]: Analyzing trace with hash 330157025, now seen corresponding path program 1 times
[2024-11-28 04:35:23,185 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 04:35:23,185 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938502577]
[2024-11-28 04:35:23,186 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 04:35:23,186 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 04:35:52,446 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat