./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.driving_phils.4.prop1-back-serstep.c --full-output --architecture 64bit


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


Checking for ERROR reachability
Using default analysis
Version cf1a7837
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a32b853-58b5-4188-be27-02f82f97fdb8/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a32b853-58b5-4188-be27-02f82f97fdb8/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a32b853-58b5-4188-be27-02f82f97fdb8/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a32b853-58b5-4188-be27-02f82f97fdb8/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.driving_phils.4.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a32b853-58b5-4188-be27-02f82f97fdb8/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a32b853-58b5-4188-be27-02f82f97fdb8/bin/uautomizer-verify-uTZkv6EMXl --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 4266779bbe6f4bb49ffaaab7243596bd26eeda5dc295f430486a067412960e81
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-cf1a783
[2023-11-12 02:33:17,604 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-11-12 02:33:17,674 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a32b853-58b5-4188-be27-02f82f97fdb8/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-64bit-Automizer_Default.epf
[2023-11-12 02:33:17,680 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-11-12 02:33:17,680 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-12 02:33:17,722 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-12 02:33:17,723 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-12 02:33:17,724 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-12 02:33:17,728 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-12 02:33:17,732 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-12 02:33:17,734 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-12 02:33:17,734 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-11-12 02:33:17,735 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-11-12 02:33:17,736 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-12 02:33:17,737 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-11-12 02:33:17,737 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-11-12 02:33:17,738 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-11-12 02:33:17,738 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-11-12 02:33:17,738 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-12 02:33:17,739 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-11-12 02:33:17,739 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-11-12 02:33:17,740 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-11-12 02:33:17,741 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-12 02:33:17,741 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-11-12 02:33:17,742 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-11-12 02:33:17,742 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-12 02:33:17,743 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-12 02:33:17,743 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-11-12 02:33:17,743 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-12 02:33:17,744 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-11-12 02:33:17,745 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-12 02:33:17,745 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-12 02:33:17,746 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-12 02:33:17,746 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-11-12 02:33:17,746 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-12 02:33:17,746 INFO  L153        SettingsManager]:  * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-12 02:33:17,747 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_3a32b853-58b5-4188-be27-02f82f97fdb8/bin/uautomizer-verify-uTZkv6EMXl/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_3a32b853-58b5-4188-be27-02f82f97fdb8/bin/uautomizer-verify-uTZkv6EMXl
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 -> 4266779bbe6f4bb49ffaaab7243596bd26eeda5dc295f430486a067412960e81
[2023-11-12 02:33:18,098 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-12 02:33:18,128 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-12 02:33:18,131 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-12 02:33:18,132 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-11-12 02:33:18,133 INFO  L274        PluginConnector]: CDTParser initialized
[2023-11-12 02:33:18,135 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a32b853-58b5-4188-be27-02f82f97fdb8/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.driving_phils.4.prop1-back-serstep.c
[2023-11-12 02:33:21,206 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-11-12 02:33:21,734 INFO  L384              CDTParser]: Found 1 translation units.
[2023-11-12 02:33:21,735 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a32b853-58b5-4188-be27-02f82f97fdb8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.driving_phils.4.prop1-back-serstep.c
[2023-11-12 02:33:21,777 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a32b853-58b5-4188-be27-02f82f97fdb8/bin/uautomizer-verify-uTZkv6EMXl/data/270590825/27e0fbe8c60c44449aaacff90ef65cbd/FLAGa9c171f4a
[2023-11-12 02:33:21,797 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a32b853-58b5-4188-be27-02f82f97fdb8/bin/uautomizer-verify-uTZkv6EMXl/data/270590825/27e0fbe8c60c44449aaacff90ef65cbd
[2023-11-12 02:33:21,805 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-12 02:33:21,807 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-12 02:33:21,812 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-12 02:33:21,813 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-12 02:33:21,819 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-12 02:33:21,820 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:33:21" (1/1) ...
[2023-11-12 02:33:21,821 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14b7f71f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:21, skipping insertion in model container
[2023-11-12 02:33:21,821 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:33:21" (1/1) ...
[2023-11-12 02:33:21,952 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-11-12 02:33:22,254 WARN  L240   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_3a32b853-58b5-4188-be27-02f82f97fdb8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.driving_phils.4.prop1-back-serstep.c[1181,1194]
[2023-11-12 02:33:23,241 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-12 02:33:23,260 INFO  L202         MainTranslator]: Completed pre-run
[2023-11-12 02:33:23,273 WARN  L240   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_3a32b853-58b5-4188-be27-02f82f97fdb8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.driving_phils.4.prop1-back-serstep.c[1181,1194]
[2023-11-12 02:33:23,759 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-12 02:33:23,777 INFO  L206         MainTranslator]: Completed translation
[2023-11-12 02:33:23,777 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:23 WrapperNode
[2023-11-12 02:33:23,778 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-12 02:33:23,779 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-12 02:33:23,779 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-12 02:33:23,779 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-12 02:33:23,787 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:23" (1/1) ...
[2023-11-12 02:33:23,992 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:23" (1/1) ...
[2023-11-12 02:33:25,912 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 20058
[2023-11-12 02:33:25,912 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-12 02:33:25,913 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-12 02:33:25,913 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-12 02:33:25,913 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-11-12 02:33:25,937 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:23" (1/1) ...
[2023-11-12 02:33:25,937 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:23" (1/1) ...
[2023-11-12 02:33:26,505 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:23" (1/1) ...
[2023-11-12 02:33:26,521 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:23" (1/1) ...
[2023-11-12 02:33:27,239 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:23" (1/1) ...
[2023-11-12 02:33:27,360 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:23" (1/1) ...
[2023-11-12 02:33:27,520 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:23" (1/1) ...
[2023-11-12 02:33:27,691 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:23" (1/1) ...
[2023-11-12 02:33:27,995 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-12 02:33:27,996 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-12 02:33:27,996 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-11-12 02:33:27,996 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-11-12 02:33:27,997 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:23" (1/1) ...
[2023-11-12 02:33:28,004 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-12 02:33:28,014 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a32b853-58b5-4188-be27-02f82f97fdb8/bin/uautomizer-verify-uTZkv6EMXl/z3
[2023-11-12 02:33:28,027 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a32b853-58b5-4188-be27-02f82f97fdb8/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-12 02:33:28,029 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a32b853-58b5-4188-be27-02f82f97fdb8/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-12 02:33:28,065 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-12 02:33:28,066 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2023-11-12 02:33:28,067 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-12 02:33:28,067 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-12 02:33:29,102 INFO  L236             CfgBuilder]: Building ICFG
[2023-11-12 02:33:29,105 INFO  L262             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-12 02:33:43,393 INFO  L277             CfgBuilder]: Performing block encoding
[2023-11-12 02:33:43,439 INFO  L297             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-12 02:33:43,440 INFO  L302             CfgBuilder]: Removed 1 assume(true) statements.
[2023-11-12 02:33:43,448 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:33:43 BoogieIcfgContainer
[2023-11-12 02:33:43,449 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-12 02:33:43,451 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-12 02:33:43,452 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-11-12 02:33:43,455 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-11-12 02:33:43,456 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:33:21" (1/3) ...
[2023-11-12 02:33:43,458 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b346dd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:33:43, skipping insertion in model container
[2023-11-12 02:33:43,458 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:33:23" (2/3) ...
[2023-11-12 02:33:43,459 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b346dd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:33:43, skipping insertion in model container
[2023-11-12 02:33:43,460 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:33:43" (3/3) ...
[2023-11-12 02:33:43,461 INFO  L112   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.driving_phils.4.prop1-back-serstep.c
[2023-11-12 02:33:43,481 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-12 02:33:43,481 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-11-12 02:33:43,650 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-12 02:33:43,658 INFO  L357      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, mHoare=true, 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;@cbf5230, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-12 02:33:43,658 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-11-12 02:33:43,682 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 4855 states, 4853 states have (on average 1.6758705955079332) internal successors, (8133), 4854 states have internal predecessors, (8133), 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)
[2023-11-12 02:33:43,715 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 432
[2023-11-12 02:33:43,715 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-12 02:33:43,716 INFO  L195           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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-12 02:33:43,717 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-12 02:33:43,722 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-12 02:33:43,723 INFO  L85        PathProgramCache]: Analyzing trace with hash 1637433198, now seen corresponding path program 1 times
[2023-11-12 02:33:43,732 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-12 02:33:43,732 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717127595]
[2023-11-12 02:33:43,733 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-12 02:33:43,733 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-12 02:33:44,586 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:33:46,676 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-12 02:33:46,677 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-12 02:33:46,677 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717127595]
[2023-11-12 02:33:46,678 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717127595] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-12 02:33:46,678 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-12 02:33:46,679 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-12 02:33:46,680 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917863739]
[2023-11-12 02:33:46,681 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-12 02:33:46,690 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-12 02:33:46,690 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-12 02:33:46,738 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-12 02:33:46,739 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-12 02:33:46,755 INFO  L87              Difference]: Start difference. First operand  has 4855 states, 4853 states have (on average 1.6758705955079332) internal successors, (8133), 4854 states have internal predecessors, (8133), 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 107.75) internal successors, (431), 4 states have internal predecessors, (431), 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)
[2023-11-12 02:33:47,127 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-12 02:33:47,127 INFO  L93              Difference]: Finished difference Result 9550 states and 16004 transitions.
[2023-11-12 02:33:47,129 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-11-12 02:33:47,130 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 107.75) internal successors, (431), 4 states have internal predecessors, (431), 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 431
[2023-11-12 02:33:47,133 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-12 02:33:47,172 INFO  L225             Difference]: With dead ends: 9550
[2023-11-12 02:33:47,173 INFO  L226             Difference]: Without dead ends: 4853
[2023-11-12 02:33:47,185 INFO  L412           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
[2023-11-12 02:33:47,189 INFO  L413           NwaCegarLoop]: 8125 mSDtfsCounter, 1 mSDsluCounter, 16244 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 24369 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-12 02:33:47,190 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 24369 Invalid, 11 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-12 02:33:47,222 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4853 states.
[2023-11-12 02:33:47,354 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4853 to 4853.
[2023-11-12 02:33:47,369 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4853 states, 4852 states have (on average 1.675391591096455) internal successors, (8129), 4852 states have internal predecessors, (8129), 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)
[2023-11-12 02:33:47,392 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4853 states to 4853 states and 8129 transitions.
[2023-11-12 02:33:47,394 INFO  L78                 Accepts]: Start accepts. Automaton has 4853 states and 8129 transitions. Word has length 431
[2023-11-12 02:33:47,395 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-12 02:33:47,396 INFO  L495      AbstractCegarLoop]: Abstraction has 4853 states and 8129 transitions.
[2023-11-12 02:33:47,396 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 107.75) internal successors, (431), 4 states have internal predecessors, (431), 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)
[2023-11-12 02:33:47,397 INFO  L276                IsEmpty]: Start isEmpty. Operand 4853 states and 8129 transitions.
[2023-11-12 02:33:47,406 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 433
[2023-11-12 02:33:47,406 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-12 02:33:47,407 INFO  L195           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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-12 02:33:47,407 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-11-12 02:33:47,408 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-12 02:33:47,408 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-12 02:33:47,409 INFO  L85        PathProgramCache]: Analyzing trace with hash -777450910, now seen corresponding path program 1 times
[2023-11-12 02:33:47,409 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-12 02:33:47,409 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210505812]
[2023-11-12 02:33:47,409 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-12 02:33:47,410 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-12 02:33:47,639 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:33:48,879 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-12 02:33:48,880 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-12 02:33:48,880 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210505812]
[2023-11-12 02:33:48,881 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210505812] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-12 02:33:48,881 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-12 02:33:48,881 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-12 02:33:48,882 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222533672]
[2023-11-12 02:33:48,882 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-12 02:33:48,885 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-12 02:33:48,885 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-12 02:33:48,887 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-12 02:33:48,887 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-12 02:33:48,888 INFO  L87              Difference]: Start difference. First operand 4853 states and 8129 transitions. Second operand  has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 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)
[2023-11-12 02:33:49,206 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-12 02:33:49,206 INFO  L93              Difference]: Finished difference Result 9551 states and 16000 transitions.
[2023-11-12 02:33:49,207 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-11-12 02:33:49,208 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 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 432
[2023-11-12 02:33:49,210 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-12 02:33:49,237 INFO  L225             Difference]: With dead ends: 9551
[2023-11-12 02:33:49,238 INFO  L226             Difference]: Without dead ends: 4856
[2023-11-12 02:33:49,251 INFO  L412           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
[2023-11-12 02:33:49,254 INFO  L413           NwaCegarLoop]: 8125 mSDtfsCounter, 1 mSDsluCounter, 16241 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 24366 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-12 02:33:49,254 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 24366 Invalid, 14 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-12 02:33:49,269 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4856 states.
[2023-11-12 02:33:49,369 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4856 to 4855.
[2023-11-12 02:33:49,387 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4855 states, 4854 states have (on average 1.6751133086114545) internal successors, (8131), 4854 states have internal predecessors, (8131), 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)
[2023-11-12 02:33:49,413 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4855 states to 4855 states and 8131 transitions.
[2023-11-12 02:33:49,414 INFO  L78                 Accepts]: Start accepts. Automaton has 4855 states and 8131 transitions. Word has length 432
[2023-11-12 02:33:49,415 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-12 02:33:49,415 INFO  L495      AbstractCegarLoop]: Abstraction has 4855 states and 8131 transitions.
[2023-11-12 02:33:49,416 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 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)
[2023-11-12 02:33:49,416 INFO  L276                IsEmpty]: Start isEmpty. Operand 4855 states and 8131 transitions.
[2023-11-12 02:33:49,427 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 434
[2023-11-12 02:33:49,428 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-12 02:33:49,428 INFO  L195           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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-12 02:33:49,428 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-11-12 02:33:49,429 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-12 02:33:49,430 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-12 02:33:49,430 INFO  L85        PathProgramCache]: Analyzing trace with hash 1458395656, now seen corresponding path program 1 times
[2023-11-12 02:33:49,431 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-12 02:33:49,431 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465466379]
[2023-11-12 02:33:49,431 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-12 02:33:49,432 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-12 02:33:49,816 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:33:50,909 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-12 02:33:50,909 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-12 02:33:50,910 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465466379]
[2023-11-12 02:33:50,910 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465466379] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-12 02:33:50,911 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-12 02:33:50,911 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-12 02:33:50,912 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455106263]
[2023-11-12 02:33:50,912 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-12 02:33:50,913 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-12 02:33:50,913 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-12 02:33:50,915 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-12 02:33:50,915 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-12 02:33:50,916 INFO  L87              Difference]: Start difference. First operand 4855 states and 8131 transitions. Second operand  has 4 states, 4 states have (on average 108.25) internal successors, (433), 4 states have internal predecessors, (433), 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)
[2023-11-12 02:33:51,379 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-12 02:33:51,380 INFO  L93              Difference]: Finished difference Result 14243 states and 23860 transitions.
[2023-11-12 02:33:51,380 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-12 02:33:51,381 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 108.25) internal successors, (433), 4 states have internal predecessors, (433), 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 433
[2023-11-12 02:33:51,382 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-12 02:33:51,435 INFO  L225             Difference]: With dead ends: 14243
[2023-11-12 02:33:51,435 INFO  L226             Difference]: Without dead ends: 9546
[2023-11-12 02:33:51,447 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-11-12 02:33:51,453 INFO  L413           NwaCegarLoop]: 8920 mSDtfsCounter, 7856 mSDsluCounter, 17034 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7856 SdHoareTripleChecker+Valid, 25954 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-12 02:33:51,455 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [7856 Valid, 25954 Invalid, 18 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-12 02:33:51,474 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9546 states.
[2023-11-12 02:33:51,630 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9546 to 4857.
[2023-11-12 02:33:51,649 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4857 states, 4856 states have (on average 1.674835255354201) internal successors, (8133), 4856 states have internal predecessors, (8133), 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)
[2023-11-12 02:33:51,681 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4857 states to 4857 states and 8133 transitions.
[2023-11-12 02:33:51,681 INFO  L78                 Accepts]: Start accepts. Automaton has 4857 states and 8133 transitions. Word has length 433
[2023-11-12 02:33:51,682 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-12 02:33:51,683 INFO  L495      AbstractCegarLoop]: Abstraction has 4857 states and 8133 transitions.
[2023-11-12 02:33:51,685 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 108.25) internal successors, (433), 4 states have internal predecessors, (433), 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)
[2023-11-12 02:33:51,687 INFO  L276                IsEmpty]: Start isEmpty. Operand 4857 states and 8133 transitions.
[2023-11-12 02:33:51,698 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 435
[2023-11-12 02:33:51,699 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-12 02:33:51,699 INFO  L195           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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-12 02:33:51,699 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-11-12 02:33:51,700 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-12 02:33:51,701 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-12 02:33:51,702 INFO  L85        PathProgramCache]: Analyzing trace with hash -434465592, now seen corresponding path program 1 times
[2023-11-12 02:33:51,702 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-12 02:33:51,708 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096917978]
[2023-11-12 02:33:51,709 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-12 02:33:51,709 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-12 02:33:51,980 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:33:53,127 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-12 02:33:53,127 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-12 02:33:53,128 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096917978]
[2023-11-12 02:33:53,128 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096917978] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-12 02:33:53,128 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-12 02:33:53,129 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-12 02:33:53,129 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009281835]
[2023-11-12 02:33:53,129 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-12 02:33:53,130 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-12 02:33:53,130 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-12 02:33:53,132 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-12 02:33:53,132 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-12 02:33:53,133 INFO  L87              Difference]: Start difference. First operand 4857 states and 8133 transitions. Second operand  has 4 states, 4 states have (on average 108.5) internal successors, (434), 4 states have internal predecessors, (434), 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)
[2023-11-12 02:33:53,556 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-12 02:33:53,556 INFO  L93              Difference]: Finished difference Result 14246 states and 23861 transitions.
[2023-11-12 02:33:53,557 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-12 02:33:53,557 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 108.5) internal successors, (434), 4 states have internal predecessors, (434), 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 434
[2023-11-12 02:33:53,558 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-12 02:33:53,610 INFO  L225             Difference]: With dead ends: 14246
[2023-11-12 02:33:53,611 INFO  L226             Difference]: Without dead ends: 9547
[2023-11-12 02:33:53,619 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-11-12 02:33:53,626 INFO  L413           NwaCegarLoop]: 8915 mSDtfsCounter, 7853 mSDsluCounter, 17029 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7853 SdHoareTripleChecker+Valid, 25944 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-12 02:33:53,628 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [7853 Valid, 25944 Invalid, 18 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-12 02:33:53,645 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9547 states.
[2023-11-12 02:33:53,758 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9547 to 4859.
[2023-11-12 02:33:53,767 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4859 states, 4858 states have (on average 1.674557431041581) internal successors, (8135), 4858 states have internal predecessors, (8135), 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)
[2023-11-12 02:33:53,784 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4859 states to 4859 states and 8135 transitions.
[2023-11-12 02:33:53,785 INFO  L78                 Accepts]: Start accepts. Automaton has 4859 states and 8135 transitions. Word has length 434
[2023-11-12 02:33:53,786 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-12 02:33:53,786 INFO  L495      AbstractCegarLoop]: Abstraction has 4859 states and 8135 transitions.
[2023-11-12 02:33:53,786 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 108.5) internal successors, (434), 4 states have internal predecessors, (434), 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)
[2023-11-12 02:33:53,786 INFO  L276                IsEmpty]: Start isEmpty. Operand 4859 states and 8135 transitions.
[2023-11-12 02:33:53,795 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 436
[2023-11-12 02:33:53,795 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-12 02:33:53,796 INFO  L195           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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-12 02:33:53,796 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-11-12 02:33:53,796 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-12 02:33:53,797 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-12 02:33:53,797 INFO  L85        PathProgramCache]: Analyzing trace with hash 341475236, now seen corresponding path program 1 times
[2023-11-12 02:33:53,797 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-12 02:33:53,798 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388315054]
[2023-11-12 02:33:53,798 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-12 02:33:53,798 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-12 02:33:53,992 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:33:54,882 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-12 02:33:54,883 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-12 02:33:54,883 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388315054]
[2023-11-12 02:33:54,883 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388315054] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-12 02:33:54,883 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-12 02:33:54,884 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-12 02:33:54,884 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327359190]
[2023-11-12 02:33:54,884 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-12 02:33:54,885 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-12 02:33:54,885 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-12 02:33:54,886 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-12 02:33:54,887 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-12 02:33:54,888 INFO  L87              Difference]: Start difference. First operand 4859 states and 8135 transitions. Second operand  has 4 states, 4 states have (on average 108.75) internal successors, (435), 4 states have internal predecessors, (435), 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)
[2023-11-12 02:33:55,240 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-12 02:33:55,240 INFO  L93              Difference]: Finished difference Result 14249 states and 23862 transitions.
[2023-11-12 02:33:55,241 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-12 02:33:55,241 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 108.75) internal successors, (435), 4 states have internal predecessors, (435), 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 435
[2023-11-12 02:33:55,243 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-12 02:33:55,266 INFO  L225             Difference]: With dead ends: 14249
[2023-11-12 02:33:55,266 INFO  L226             Difference]: Without dead ends: 9548
[2023-11-12 02:33:55,275 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-11-12 02:33:55,276 INFO  L413           NwaCegarLoop]: 8910 mSDtfsCounter, 7850 mSDsluCounter, 17024 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7850 SdHoareTripleChecker+Valid, 25934 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-12 02:33:55,276 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [7850 Valid, 25934 Invalid, 18 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-12 02:33:55,295 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9548 states.
[2023-11-12 02:33:55,414 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9548 to 4861.
[2023-11-12 02:33:55,423 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4861 states, 4860 states have (on average 1.6742798353909465) internal successors, (8137), 4860 states have internal predecessors, (8137), 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)
[2023-11-12 02:33:55,441 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4861 states to 4861 states and 8137 transitions.
[2023-11-12 02:33:55,441 INFO  L78                 Accepts]: Start accepts. Automaton has 4861 states and 8137 transitions. Word has length 435
[2023-11-12 02:33:55,442 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-12 02:33:55,442 INFO  L495      AbstractCegarLoop]: Abstraction has 4861 states and 8137 transitions.
[2023-11-12 02:33:55,443 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 108.75) internal successors, (435), 4 states have internal predecessors, (435), 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)
[2023-11-12 02:33:55,443 INFO  L276                IsEmpty]: Start isEmpty. Operand 4861 states and 8137 transitions.
[2023-11-12 02:33:55,453 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 437
[2023-11-12 02:33:55,453 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-12 02:33:55,453 INFO  L195           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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-12 02:33:55,454 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2023-11-12 02:33:55,454 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-12 02:33:55,454 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-12 02:33:55,455 INFO  L85        PathProgramCache]: Analyzing trace with hash -624255440, now seen corresponding path program 1 times
[2023-11-12 02:33:55,455 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-12 02:33:55,455 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976732692]
[2023-11-12 02:33:55,455 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-12 02:33:55,456 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-12 02:33:55,671 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-12 02:33:56,843 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-12 02:33:56,844 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-12 02:33:56,844 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976732692]
[2023-11-12 02:33:56,844 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976732692] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-12 02:33:56,844 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-12 02:33:56,845 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-12 02:33:56,845 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458324972]
[2023-11-12 02:33:56,845 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-12 02:33:56,846 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-12 02:33:56,847 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-12 02:33:56,848 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-12 02:33:56,848 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-11-12 02:33:56,849 INFO  L87              Difference]: Start difference. First operand 4861 states and 8137 transitions. Second operand  has 5 states, 5 states have (on average 87.2) internal successors, (436), 5 states have internal predecessors, (436), 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)
[2023-11-12 02:33:57,401 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-12 02:33:57,401 INFO  L93              Difference]: Finished difference Result 14742 states and 24677 transitions.
[2023-11-12 02:33:57,402 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-11-12 02:33:57,402 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 87.2) internal successors, (436), 5 states have internal predecessors, (436), 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 436
[2023-11-12 02:33:57,404 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-12 02:33:57,425 INFO  L225             Difference]: With dead ends: 14742
[2023-11-12 02:33:57,425 INFO  L226             Difference]: Without dead ends: 10039
[2023-11-12 02:33:57,435 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2023-11-12 02:33:57,436 INFO  L413           NwaCegarLoop]: 8919 mSDtfsCounter, 32066 mSDsluCounter, 16243 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32066 SdHoareTripleChecker+Valid, 25162 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-12 02:33:57,436 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [32066 Valid, 25162 Invalid, 15 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-12 02:33:57,453 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10039 states.
[2023-11-12 02:33:57,586 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10039 to 5338.
[2023-11-12 02:33:57,596 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5338 states, 5337 states have (on average 1.6735994004122166) internal successors, (8932), 5337 states have internal predecessors, (8932), 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)
[2023-11-12 02:33:57,615 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5338 states to 5338 states and 8932 transitions.
[2023-11-12 02:33:57,615 INFO  L78                 Accepts]: Start accepts. Automaton has 5338 states and 8932 transitions. Word has length 436
[2023-11-12 02:33:57,616 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-12 02:33:57,617 INFO  L495      AbstractCegarLoop]: Abstraction has 5338 states and 8932 transitions.
[2023-11-12 02:33:57,617 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 87.2) internal successors, (436), 5 states have internal predecessors, (436), 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)
[2023-11-12 02:33:57,617 INFO  L276                IsEmpty]: Start isEmpty. Operand 5338 states and 8932 transitions.
[2023-11-12 02:33:57,827 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3332
[2023-11-12 02:33:57,828 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-12 02:33:57,830 INFO  L195           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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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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]
[2023-11-12 02:33:57,832 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2023-11-12 02:33:57,833 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-12 02:33:57,833 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-12 02:33:57,835 INFO  L85        PathProgramCache]: Analyzing trace with hash 100753056, now seen corresponding path program 1 times
[2023-11-12 02:33:57,835 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-12 02:33:57,835 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946381085]
[2023-11-12 02:33:57,836 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-12 02:33:57,837 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-12 02:33:58,626 ERROR L246   FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-11-12 02:33:58,627 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1166966829]
[2023-11-12 02:33:58,628 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-12 02:33:58,628 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-12 02:33:58,628 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a32b853-58b5-4188-be27-02f82f97fdb8/bin/uautomizer-verify-uTZkv6EMXl/z3
[2023-11-12 02:33:58,632 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a32b853-58b5-4188-be27-02f82f97fdb8/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-12 02:33:58,653 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a32b853-58b5-4188-be27-02f82f97fdb8/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process