./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 a0165632
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_516284d5-badb-407a-9849-7dd3ee24e15a/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_516284d5-badb-407a-9849-7dd3ee24e15a/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_516284d5-badb-407a-9849-7dd3ee24e15a/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_516284d5-badb-407a-9849-7dd3ee24e15a/bin/uautomizer-verify-jihMAELWvX/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_516284d5-badb-407a-9849-7dd3ee24e15a/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_516284d5-badb-407a-9849-7dd3ee24e15a/bin/uautomizer-verify-jihMAELWvX --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 0.2.5-dev-a016563
[2024-11-08 18:36:34,567 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-08 18:36:34,662 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_516284d5-badb-407a-9849-7dd3ee24e15a/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-64bit-Automizer_Default.epf
[2024-11-08 18:36:34,667 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-08 18:36:34,668 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-08 18:36:34,696 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-08 18:36:34,697 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-08 18:36:34,697 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-08 18:36:34,698 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-08 18:36:34,699 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-08 18:36:34,699 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-08 18:36:34,700 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-08 18:36:34,700 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-08 18:36:34,701 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-08 18:36:34,701 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-08 18:36:34,702 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-08 18:36:34,702 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-08 18:36:34,703 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-08 18:36:34,703 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-08 18:36:34,704 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-08 18:36:34,704 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-08 18:36:34,706 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-08 18:36:34,707 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-08 18:36:34,708 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-08 18:36:34,708 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-08 18:36:34,709 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-08 18:36:34,709 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-08 18:36:34,710 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-08 18:36:34,710 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-08 18:36:34,710 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 18:36:34,711 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-08 18:36:34,711 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-08 18:36:34,712 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-08 18:36:34,712 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-08 18:36:34,712 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-08 18:36:34,713 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-08 18:36:34,713 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-08 18:36:34,713 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-08 18:36:34,714 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-08 18:36:34,714 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_516284d5-badb-407a-9849-7dd3ee24e15a/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
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_516284d5-badb-407a-9849-7dd3ee24e15a/bin/uautomizer-verify-jihMAELWvX
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
[2024-11-08 18:36:35,043 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-08 18:36:35,070 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-08 18:36:35,073 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-08 18:36:35,074 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-08 18:36:35,075 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-08 18:36:35,076 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_516284d5-badb-407a-9849-7dd3ee24e15a/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cyclic_scheduler.3.prop1-func-interl.c
Unable to find full path for "g++"
[2024-11-08 18:36:37,136 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-08 18:36:37,625 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-08 18:36:37,625 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_516284d5-badb-407a-9849-7dd3ee24e15a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cyclic_scheduler.3.prop1-func-interl.c
[2024-11-08 18:36:37,660 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_516284d5-badb-407a-9849-7dd3ee24e15a/bin/uautomizer-verify-jihMAELWvX/data/637c3d6b3/5398f1f1f644490f97c1a515de29c273/FLAGb304faa2c
[2024-11-08 18:36:37,746 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_516284d5-badb-407a-9849-7dd3ee24e15a/bin/uautomizer-verify-jihMAELWvX/data/637c3d6b3/5398f1f1f644490f97c1a515de29c273
[2024-11-08 18:36:37,750 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-08 18:36:37,752 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-08 18:36:37,754 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-08 18:36:37,754 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-08 18:36:37,762 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-08 18:36:37,765 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:36:37" (1/1) ...
[2024-11-08 18:36:37,766 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@575b5c54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:36:37, skipping insertion in model container
[2024-11-08 18:36:37,766 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:36:37" (1/1) ...
[2024-11-08 18:36:37,922 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-08 18:36:38,274 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_516284d5-badb-407a-9849-7dd3ee24e15a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cyclic_scheduler.3.prop1-func-interl.c[1183,1196]
[2024-11-08 18:36:39,237 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-08 18:36:39,248 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-08 18:36:39,262 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_516284d5-badb-407a-9849-7dd3ee24e15a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cyclic_scheduler.3.prop1-func-interl.c[1183,1196]
[2024-11-08 18:36:40,019 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-08 18:36:40,043 INFO  L204         MainTranslator]: Completed translation
[2024-11-08 18:36:40,044 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:36:40 WrapperNode
[2024-11-08 18:36:40,044 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-08 18:36:40,045 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-08 18:36:40,046 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-08 18:36:40,046 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-08 18:36:40,055 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:36:40" (1/1) ...
[2024-11-08 18:36:40,249 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:36:40" (1/1) ...
[2024-11-08 18:36:42,952 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 19614
[2024-11-08 18:36:42,953 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-08 18:36:42,953 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-08 18:36:42,953 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-08 18:36:42,954 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-08 18:36:42,966 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:36:40" (1/1) ...
[2024-11-08 18:36:42,967 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:36:40" (1/1) ...
[2024-11-08 18:36:43,654 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:36:40" (1/1) ...
[2024-11-08 18:36:44,136 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].
[2024-11-08 18:36:44,136 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:36:40" (1/1) ...
[2024-11-08 18:36:44,136 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:36:40" (1/1) ...
[2024-11-08 18:36:44,976 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:36:40" (1/1) ...
[2024-11-08 18:36:45,209 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:36:40" (1/1) ...
[2024-11-08 18:36:45,300 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:36:40" (1/1) ...
[2024-11-08 18:36:45,369 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:36:40" (1/1) ...
[2024-11-08 18:36:45,740 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-08 18:36:45,741 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-08 18:36:45,741 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-08 18:36:45,741 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-08 18:36:45,743 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:36:40" (1/1) ...
[2024-11-08 18:36:45,751 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 18:36:45,769 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_516284d5-badb-407a-9849-7dd3ee24e15a/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:36:45,784 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_516284d5-badb-407a-9849-7dd3ee24e15a/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-08 18:36:45,787 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_516284d5-badb-407a-9849-7dd3ee24e15a/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-08 18:36:45,821 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-08 18:36:45,821 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-08 18:36:45,821 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-08 18:36:45,822 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-08 18:36:46,930 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-08 18:36:46,933 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-08 18:37:37,133 INFO  L?                        ?]: Removed 10884 outVars from TransFormulas that were not future-live.
[2024-11-08 18:37:37,133 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-08 18:37:37,246 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-08 18:37:37,246 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-08 18:37:37,248 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:37:37 BoogieIcfgContainer
[2024-11-08 18:37:37,248 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-08 18:37:37,253 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-08 18:37:37,253 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-08 18:37:37,258 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-08 18:37:37,258 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:36:37" (1/3) ...
[2024-11-08 18:37:37,259 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43d7c3d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:37:37, skipping insertion in model container
[2024-11-08 18:37:37,260 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:36:40" (2/3) ...
[2024-11-08 18:37:37,260 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43d7c3d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:37:37, skipping insertion in model container
[2024-11-08 18:37:37,261 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:37:37" (3/3) ...
[2024-11-08 18:37:37,262 INFO  L112   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cyclic_scheduler.3.prop1-func-interl.c
[2024-11-08 18:37:37,283 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-08 18:37:37,284 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-08 18:37:37,490 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-08 18:37:37,498 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;@22f4eeaa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-08 18:37:37,499 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-08 18:37:37,527 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 7003 states, 7001 states have (on average 1.4999285816311956) internal successors, (10501), 7002 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)
[2024-11-08 18:37:37,564 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 326
[2024-11-08 18:37:37,567 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 18:37:37,568 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:37:37,569 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 18:37:37,576 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:37:37,577 INFO  L85        PathProgramCache]: Analyzing trace with hash 1496710735, now seen corresponding path program 1 times
[2024-11-08 18:37:37,587 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:37:37,588 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838751781]
[2024-11-08 18:37:37,589 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:37:37,589 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:37:38,156 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:37:39,780 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:37:39,783 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:37:39,783 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838751781]
[2024-11-08 18:37:39,784 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838751781] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:37:39,784 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:37:39,784 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 18:37:39,787 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465025244]
[2024-11-08 18:37:39,789 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:37:39,795 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 18:37:39,795 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:37:39,823 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 18:37:39,824 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 18:37:39,845 INFO  L87              Difference]: Start difference. First operand  has 7003 states, 7001 states have (on average 1.4999285816311956) internal successors, (10501), 7002 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) 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)
[2024-11-08 18:37:40,348 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:37:40,348 INFO  L93              Difference]: Finished difference Result 13530 states and 20292 transitions.
[2024-11-08 18:37:40,349 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-08 18:37:40,351 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
[2024-11-08 18:37:40,356 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:37:40,410 INFO  L225             Difference]: With dead ends: 13530
[2024-11-08 18:37:40,410 INFO  L226             Difference]: Without dead ends: 7001
[2024-11-08 18:37:40,426 INFO  L431           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
[2024-11-08 18:37:40,431 INFO  L432           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, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 18:37:40,432 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31473 Invalid, 11 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 18:37:40,466 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7001 states.
[2024-11-08 18:37:40,659 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7001 to 7001.
[2024-11-08 18:37:40,675 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)
[2024-11-08 18:37:40,697 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7001 states to 7001 states and 10497 transitions.
[2024-11-08 18:37:40,698 INFO  L78                 Accepts]: Start accepts. Automaton has 7001 states and 10497 transitions. Word has length 325
[2024-11-08 18:37:40,702 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:37:40,702 INFO  L471      AbstractCegarLoop]: Abstraction has 7001 states and 10497 transitions.
[2024-11-08 18:37:40,702 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)
[2024-11-08 18:37:40,704 INFO  L276                IsEmpty]: Start isEmpty. Operand 7001 states and 10497 transitions.
[2024-11-08 18:37:40,713 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 327
[2024-11-08 18:37:40,714 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 18:37:40,714 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:37:40,714 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-08 18:37:40,715 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 18:37:40,715 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:37:40,716 INFO  L85        PathProgramCache]: Analyzing trace with hash -844910234, now seen corresponding path program 1 times
[2024-11-08 18:37:40,716 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:37:40,716 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889758730]
[2024-11-08 18:37:40,716 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:37:40,716 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:37:40,941 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:37:41,669 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:37:41,674 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:37:41,674 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889758730]
[2024-11-08 18:37:41,674 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889758730] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:37:41,674 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:37:41,674 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 18:37:41,675 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189234928]
[2024-11-08 18:37:41,675 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:37:41,677 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 18:37:41,681 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:37:41,682 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 18:37:41,682 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 18:37:41,682 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)
[2024-11-08 18:37:42,014 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:37:42,015 INFO  L93              Difference]: Finished difference Result 13530 states and 20287 transitions.
[2024-11-08 18:37:42,015 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-08 18:37:42,016 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
[2024-11-08 18:37:42,016 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:37:42,036 INFO  L225             Difference]: With dead ends: 13530
[2024-11-08 18:37:42,037 INFO  L226             Difference]: Without dead ends: 7003
[2024-11-08 18:37:42,046 INFO  L431           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
[2024-11-08 18:37:42,047 INFO  L432           NwaCegarLoop]: 10493 mSDtfsCounter, 0 mSDsluCounter, 20976 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 18:37:42,049 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31469 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 18:37:42,062 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7003 states.
[2024-11-08 18:37:42,176 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7003 to 7003.
[2024-11-08 18:37:42,200 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)
[2024-11-08 18:37:42,227 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7003 states to 7003 states and 10499 transitions.
[2024-11-08 18:37:42,227 INFO  L78                 Accepts]: Start accepts. Automaton has 7003 states and 10499 transitions. Word has length 326
[2024-11-08 18:37:42,228 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:37:42,229 INFO  L471      AbstractCegarLoop]: Abstraction has 7003 states and 10499 transitions.
[2024-11-08 18:37:42,229 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)
[2024-11-08 18:37:42,231 INFO  L276                IsEmpty]: Start isEmpty. Operand 7003 states and 10499 transitions.
[2024-11-08 18:37:42,239 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 328
[2024-11-08 18:37:42,239 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 18:37:42,240 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:37:42,240 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-08 18:37:42,241 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 18:37:42,242 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:37:42,242 INFO  L85        PathProgramCache]: Analyzing trace with hash -1520377336, now seen corresponding path program 1 times
[2024-11-08 18:37:42,245 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:37:42,246 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747542600]
[2024-11-08 18:37:42,246 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:37:42,246 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:37:42,451 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:37:43,228 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:37:43,228 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:37:43,228 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747542600]
[2024-11-08 18:37:43,230 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747542600] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:37:43,231 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:37:43,231 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 18:37:43,231 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351723271]
[2024-11-08 18:37:43,232 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:37:43,232 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 18:37:43,233 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:37:43,235 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 18:37:43,235 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 18:37:43,237 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)
[2024-11-08 18:37:43,567 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:37:43,568 INFO  L93              Difference]: Finished difference Result 13534 states and 20291 transitions.
[2024-11-08 18:37:43,569 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-08 18:37:43,569 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
[2024-11-08 18:37:43,570 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:37:43,592 INFO  L225             Difference]: With dead ends: 13534
[2024-11-08 18:37:43,592 INFO  L226             Difference]: Without dead ends: 7005
[2024-11-08 18:37:43,600 INFO  L431           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
[2024-11-08 18:37:43,603 INFO  L432           NwaCegarLoop]: 10493 mSDtfsCounter, 0 mSDsluCounter, 20970 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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
[2024-11-08 18:37:43,606 INFO  L433           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]
[2024-11-08 18:37:43,620 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7005 states.
[2024-11-08 18:37:43,743 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7005 to 7005.
[2024-11-08 18:37:43,765 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)
[2024-11-08 18:37:43,798 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7005 states to 7005 states and 10501 transitions.
[2024-11-08 18:37:43,798 INFO  L78                 Accepts]: Start accepts. Automaton has 7005 states and 10501 transitions. Word has length 327
[2024-11-08 18:37:43,799 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:37:43,799 INFO  L471      AbstractCegarLoop]: Abstraction has 7005 states and 10501 transitions.
[2024-11-08 18:37:43,801 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)
[2024-11-08 18:37:43,801 INFO  L276                IsEmpty]: Start isEmpty. Operand 7005 states and 10501 transitions.
[2024-11-08 18:37:43,807 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 329
[2024-11-08 18:37:43,808 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 18:37:43,811 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 18:37:43,812 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-08 18:37:43,812 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 18:37:43,812 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:37:43,812 INFO  L85        PathProgramCache]: Analyzing trace with hash 1021831725, now seen corresponding path program 1 times
[2024-11-08 18:37:43,813 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:37:43,813 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615359306]
[2024-11-08 18:37:43,813 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:37:43,813 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:37:44,010 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:37:44,814 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:37:44,814 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:37:44,814 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615359306]
[2024-11-08 18:37:44,814 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615359306] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:37:44,815 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 18:37:44,815 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-08 18:37:44,815 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102750968]
[2024-11-08 18:37:44,815 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:37:44,816 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-08 18:37:44,816 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:37:44,817 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-08 18:37:44,818 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-08 18:37:44,818 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)
[2024-11-08 18:37:45,339 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:37:45,340 INFO  L93              Difference]: Finished difference Result 17885 states and 26812 transitions.
[2024-11-08 18:37:45,340 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-08 18:37:45,341 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
[2024-11-08 18:37:45,342 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:37:45,377 INFO  L225             Difference]: With dead ends: 17885
[2024-11-08 18:37:45,378 INFO  L226             Difference]: Without dead ends: 11354
[2024-11-08 18:37:45,388 INFO  L431           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
[2024-11-08 18:37:45,389 INFO  L432           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
[2024-11-08 18:37:45,389 INFO  L433           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]
[2024-11-08 18:37:45,411 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11354 states.
[2024-11-08 18:37:45,562 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11354 to 7165.
[2024-11-08 18:37:45,576 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)
[2024-11-08 18:37:45,598 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7165 states to 7165 states and 10741 transitions.
[2024-11-08 18:37:45,599 INFO  L78                 Accepts]: Start accepts. Automaton has 7165 states and 10741 transitions. Word has length 328
[2024-11-08 18:37:45,599 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:37:45,600 INFO  L471      AbstractCegarLoop]: Abstraction has 7165 states and 10741 transitions.
[2024-11-08 18:37:45,600 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)
[2024-11-08 18:37:45,600 INFO  L276                IsEmpty]: Start isEmpty. Operand 7165 states and 10741 transitions.
[2024-11-08 18:37:45,804 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3592
[2024-11-08 18:37:45,804 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 18:37:45,806 INFO  L215           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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[2024-11-08 18:37:45,807 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-08 18:37:45,807 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 18:37:45,807 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:37:45,809 INFO  L85        PathProgramCache]: Analyzing trace with hash 2088444389, now seen corresponding path program 1 times
[2024-11-08 18:37:45,810 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:37:45,810 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893488976]
[2024-11-08 18:37:45,811 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:37:45,811 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:38:18,928 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:38:31,437 INFO  L134       CoverageAnalysis]: Checked inductivity of 86 backedges. 6 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:38:31,437 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:38:31,437 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893488976]
[2024-11-08 18:38:31,438 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893488976] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 18:38:31,438 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1149466490]
[2024-11-08 18:38:31,439 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:38:31,440 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:38:31,440 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_516284d5-badb-407a-9849-7dd3ee24e15a/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:38:31,442 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_516284d5-badb-407a-9849-7dd3ee24e15a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:38:31,444 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_516284d5-badb-407a-9849-7dd3ee24e15a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-08 18:38:38,427 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:38:38,517 INFO  L255         TraceCheckSpWp]: Trace formula consists of 15622 conjuncts, 69 conjuncts are in the unsatisfiable core
[2024-11-08 18:38:38,641 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:39:10,732 INFO  L134       CoverageAnalysis]: Checked inductivity of 86 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:39:10,733 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 18:39:10,733 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1149466490] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:39:10,733 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-08 18:39:10,734 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [6] total 31
[2024-11-08 18:39:10,735 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25180034]
[2024-11-08 18:39:10,735 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:39:10,739 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 27 states
[2024-11-08 18:39:10,740 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:39:10,745 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants.
[2024-11-08 18:39:10,746 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=825, Unknown=0, NotChecked=0, Total=930
[2024-11-08 18:39:10,748 INFO  L87              Difference]: Start difference. First operand 7165 states and 10741 transitions. Second operand  has 27 states, 27 states have (on average 133.0) internal successors, (3591), 27 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)
[2024-11-08 18:39:19,401 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:39:19,401 INFO  L93              Difference]: Finished difference Result 68192 states and 102263 transitions.
[2024-11-08 18:39:19,402 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. 
[2024-11-08 18:39:19,403 INFO  L78                 Accepts]: Start accepts. Automaton has  has 27 states, 27 states have (on average 133.0) internal successors, (3591), 27 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
[2024-11-08 18:39:19,409 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:39:19,566 INFO  L225             Difference]: With dead ends: 68192
[2024-11-08 18:39:19,567 INFO  L226             Difference]: Without dead ends: 61661
[2024-11-08 18:39:19,587 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3641 GetRequests, 3569 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1285 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=600, Invalid=4802, Unknown=0, NotChecked=0, Total=5402
[2024-11-08 18:39:19,589 INFO  L432           NwaCegarLoop]: 27270 mSDtfsCounter, 75013 mSDsluCounter, 466773 mSDsCounter, 0 mSdLazyCounter, 1439 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75013 SdHoareTripleChecker+Valid, 494043 SdHoareTripleChecker+Invalid, 1450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2024-11-08 18:39:19,591 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [75013 Valid, 494043 Invalid, 1450 Unknown, 0 Unchecked, 1.1s Time], IncrementalHoareTripleChecker [11 Valid, 1439 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time]
[2024-11-08 18:39:19,649 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 61661 states.
[2024-11-08 18:39:20,302 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 61661 to 22002.
[2024-11-08 18:39:20,333 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 22002 states, 22001 states have (on average 1.4996591064042544) internal successors, (32994), 22001 states have internal predecessors, (32994), 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)
[2024-11-08 18:39:20,366 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 22002 states to 22002 states and 32994 transitions.
[2024-11-08 18:39:20,367 INFO  L78                 Accepts]: Start accepts. Automaton has 22002 states and 32994 transitions. Word has length 3591
[2024-11-08 18:39:20,372 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:39:20,373 INFO  L471      AbstractCegarLoop]: Abstraction has 22002 states and 32994 transitions.
[2024-11-08 18:39:20,374 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 27 states, 27 states have (on average 133.0) internal successors, (3591), 27 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)
[2024-11-08 18:39:20,374 INFO  L276                IsEmpty]: Start isEmpty. Operand 22002 states and 32994 transitions.
[2024-11-08 18:39:20,493 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3593
[2024-11-08 18:39:20,493 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 18:39:20,495 INFO  L215           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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[2024-11-08 18:39:20,565 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_516284d5-badb-407a-9849-7dd3ee24e15a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-08 18:39:20,696 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_516284d5-badb-407a-9849-7dd3ee24e15a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:39:20,697 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 18:39:20,698 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:39:20,700 INFO  L85        PathProgramCache]: Analyzing trace with hash 1542716374, now seen corresponding path program 1 times
[2024-11-08 18:39:20,700 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:39:20,701 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390300054]
[2024-11-08 18:39:20,701 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:39:20,702 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:39:47,123 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:39:56,938 INFO  L134       CoverageAnalysis]: Checked inductivity of 86 backedges. 6 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:39:56,939 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 18:39:56,939 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390300054]
[2024-11-08 18:39:56,939 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390300054] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 18:39:56,939 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1786748698]
[2024-11-08 18:39:56,940 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:39:56,941 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:39:56,941 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_516284d5-badb-407a-9849-7dd3ee24e15a/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 18:39:56,946 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_516284d5-badb-407a-9849-7dd3ee24e15a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 18:39:56,950 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_516284d5-badb-407a-9849-7dd3ee24e15a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-08 18:40:04,796 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 18:40:04,883 INFO  L255         TraceCheckSpWp]: Trace formula consists of 15625 conjuncts, 17 conjuncts are in the unsatisfiable core
[2024-11-08 18:40:04,977 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 18:40:11,031 INFO  L134       CoverageAnalysis]: Checked inductivity of 86 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 18:40:11,031 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 18:40:11,031 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1786748698] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 18:40:11,031 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-08 18:40:11,034 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [6] total 13
[2024-11-08 18:40:11,035 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755725691]
[2024-11-08 18:40:11,035 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 18:40:11,042 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-08 18:40:11,043 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 18:40:11,046 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-08 18:40:11,047 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156
[2024-11-08 18:40:11,048 INFO  L87              Difference]: Start difference. First operand 22002 states and 32994 transitions. Second operand  has 9 states, 9 states have (on average 399.1111111111111) internal successors, (3592), 9 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)
[2024-11-08 18:40:11,820 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 18:40:11,820 INFO  L93              Difference]: Finished difference Result 61499 states and 92224 transitions.
[2024-11-08 18:40:11,822 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2024-11-08 18:40:11,823 INFO  L78                 Accepts]: Start accepts. Automaton has  has 9 states, 9 states have (on average 399.1111111111111) internal successors, (3592), 9 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
[2024-11-08 18:40:11,831 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 18:40:11,890 INFO  L225             Difference]: With dead ends: 61499
[2024-11-08 18:40:11,890 INFO  L226             Difference]: Without dead ends: 39971
[2024-11-08 18:40:11,911 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3602 GetRequests, 3588 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240
[2024-11-08 18:40:11,912 INFO  L432           NwaCegarLoop]: 16994 mSDtfsCounter, 12649 mSDsluCounter, 98546 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12649 SdHoareTripleChecker+Valid, 115540 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-08 18:40:11,912 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [12649 Valid, 115540 Invalid, 151 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-08 18:40:11,943 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 39971 states.
[2024-11-08 18:40:12,330 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 39971 to 22009.
[2024-11-08 18:40:12,358 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 22009 states, 22008 states have (on average 1.4996819338422391) internal successors, (33005), 22008 states have internal predecessors, (33005), 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)
[2024-11-08 18:40:12,394 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 22009 states to 22009 states and 33005 transitions.
[2024-11-08 18:40:12,394 INFO  L78                 Accepts]: Start accepts. Automaton has 22009 states and 33005 transitions. Word has length 3592
[2024-11-08 18:40:12,397 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-08 18:40:12,398 INFO  L471      AbstractCegarLoop]: Abstraction has 22009 states and 33005 transitions.
[2024-11-08 18:40:12,399 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 9 states have (on average 399.1111111111111) internal successors, (3592), 9 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)
[2024-11-08 18:40:12,399 INFO  L276                IsEmpty]: Start isEmpty. Operand 22009 states and 33005 transitions.
[2024-11-08 18:40:12,612 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3594
[2024-11-08 18:40:12,612 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-08 18:40:12,614 INFO  L215           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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[2024-11-08 18:40:12,687 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_516284d5-badb-407a-9849-7dd3ee24e15a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-08 18:40:12,814 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_516284d5-badb-407a-9849-7dd3ee24e15a/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 18:40:12,815 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 18:40:12,816 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 18:40:12,817 INFO  L85        PathProgramCache]: Analyzing trace with hash -982174408, now seen corresponding path program 1 times
[2024-11-08 18:40:12,818 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 18:40:12,820 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94418132]
[2024-11-08 18:40:12,821 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 18:40:12,822 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 18:40:37,494 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat