./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal35.c --full-output --architecture 64bit


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


Checking for ERROR reachability
Using default analysis
Version 4f9af400
extending candidate: java
['java']
extending candidate: /usr/bin/java
['java', '/usr/bin/java']
extending candidate: /opt/oracle-jdk-bin-*/bin/java
['java', '/usr/bin/java']
extending candidate: /opt/openjdk-*/bin/java
['java', '/usr/bin/java']
extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java
['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java']
['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal35.c', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux', '--witnessprinter.witness.filename', 'witness', '--witnessprinter.write.witness.besides.input.file', 'false', '--witnessprinter.graph.data.specification', 'CHECK( init(main()), LTL(G ! call(reach_error())) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '64bit', '--witnessprinter.graph.data.programhash', '272e9c9a5f36a2554793703c5d73a0d10ae846e63a9c621f2708481abf6615cc']
Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal35.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --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 272e9c9a5f36a2554793703c5d73a0d10ae846e63a9c621f2708481abf6615cc
--- Real Ultimate output ---
This is Ultimate 0.3.0-?-4f9af40
[2024-11-07 02:29:55,310 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-07 02:29:55,369 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf
[2024-11-07 02:29:55,372 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-07 02:29:55,373 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-07 02:29:55,387 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-07 02:29:55,388 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-07 02:29:55,388 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-07 02:29:55,388 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-07 02:29:55,388 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-07 02:29:55,389 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-07 02:29:55,389 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-07 02:29:55,389 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-07 02:29:55,389 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-07 02:29:55,389 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-07 02:29:55,390 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-07 02:29:55,390 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-07 02:29:55,390 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-07 02:29:55,390 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-07 02:29:55,390 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-07 02:29:55,390 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-07 02:29:55,390 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-07 02:29:55,390 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-07 02:29:55,390 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-07 02:29:55,391 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-07 02:29:55,391 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-07 02:29:55,391 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-07 02:29:55,391 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-07 02:29:55,391 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-07 02:29:55,391 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-07 02:29:55,391 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-07 02:29:55,391 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-07 02:29:55,391 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-07 02:29:55,392 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-07 02:29:55,392 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-07 02:29:55,392 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-07 02:29:55,392 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-07 02:29:55,392 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-07 02:29:55,392 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-07 02:29:55,392 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux
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 -> 272e9c9a5f36a2554793703c5d73a0d10ae846e63a9c621f2708481abf6615cc
[2024-11-07 02:29:55,606 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-07 02:29:55,612 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-07 02:29:55,613 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-07 02:29:55,614 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-07 02:29:55,614 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-07 02:29:55,614 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal35.c
[2024-11-07 02:29:56,688 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-07 02:29:56,998 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-07 02:29:56,999 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal35.c
[2024-11-07 02:29:57,018 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5e2a71f9b/71ccf63f93524cd2beb1bb07d5588da1/FLAGae0edd91e
[2024-11-07 02:29:57,028 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5e2a71f9b/71ccf63f93524cd2beb1bb07d5588da1
[2024-11-07 02:29:57,030 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-07 02:29:57,031 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-07 02:29:57,031 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-07 02:29:57,031 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-07 02:29:57,034 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-07 02:29:57,035 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:29:57" (1/1) ...
[2024-11-07 02:29:57,035 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36cdd300 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:29:57, skipping insertion in model container
[2024-11-07 02:29:57,035 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:29:57" (1/1) ...
[2024-11-07 02:29:57,097 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-07 02:29:57,279 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal35.c[1245,1258]
[2024-11-07 02:29:57,736 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-07 02:29:57,743 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-07 02:29:57,751 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal35.c[1245,1258]
[2024-11-07 02:29:58,007 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-07 02:29:58,017 INFO  L204         MainTranslator]: Completed translation
[2024-11-07 02:29:58,018 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:29:58 WrapperNode
[2024-11-07 02:29:58,018 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-07 02:29:58,019 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-07 02:29:58,019 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-07 02:29:58,019 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-07 02:29:58,024 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:29:58" (1/1) ...
[2024-11-07 02:29:58,096 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:29:58" (1/1) ...
[2024-11-07 02:29:59,033 INFO  L138                Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 13096
[2024-11-07 02:29:59,034 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-07 02:29:59,035 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-07 02:29:59,035 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-07 02:29:59,035 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-07 02:29:59,040 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:29:58" (1/1) ...
[2024-11-07 02:29:59,040 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:29:58" (1/1) ...
[2024-11-07 02:29:59,239 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:29:58" (1/1) ...
[2024-11-07 02:29:59,356 INFO  L175           MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0].
[2024-11-07 02:29:59,356 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:29:58" (1/1) ...
[2024-11-07 02:29:59,356 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:29:58" (1/1) ...
[2024-11-07 02:29:59,688 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:29:58" (1/1) ...
[2024-11-07 02:29:59,743 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:29:58" (1/1) ...
[2024-11-07 02:29:59,821 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:29:58" (1/1) ...
[2024-11-07 02:29:59,882 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:29:58" (1/1) ...
[2024-11-07 02:30:00,233 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-07 02:30:00,238 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-07 02:30:00,238 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-07 02:30:00,238 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-07 02:30:00,239 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:29:58" (1/1) ...
[2024-11-07 02:30:00,246 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-07 02:30:00,261 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3
[2024-11-07 02:30:00,276 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-07 02:30:00,285 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-07 02:30:00,322 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-07 02:30:00,322 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-07 02:30:00,322 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-11-07 02:30:00,322 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-07 02:30:00,322 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-07 02:30:00,868 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-07 02:30:00,869 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-07 02:30:14,534 INFO  L?                        ?]: Removed 7082 outVars from TransFormulas that were not future-live.
[2024-11-07 02:30:14,534 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-07 02:30:14,594 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-07 02:30:14,594 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-07 02:30:14,594 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:30:14 BoogieIcfgContainer
[2024-11-07 02:30:14,595 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-07 02:30:14,596 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-07 02:30:14,597 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-07 02:30:14,600 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-07 02:30:14,600 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:29:57" (1/3) ...
[2024-11-07 02:30:14,601 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67879c6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:30:14, skipping insertion in model container
[2024-11-07 02:30:14,601 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:29:58" (2/3) ...
[2024-11-07 02:30:14,602 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67879c6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:30:14, skipping insertion in model container
[2024-11-07 02:30:14,602 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:30:14" (3/3) ...
[2024-11-07 02:30:14,602 INFO  L112   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal35.c
[2024-11-07 02:30:14,613 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-07 02:30:14,613 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-07 02:30:14,708 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-07 02:30:14,718 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;@27be597c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-07 02:30:14,718 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-07 02:30:14,730 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 4308 states, 4306 states have (on average 1.5) internal successors, (6459), 4307 states have internal predecessors, (6459), 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)
[2024-11-07 02:30:14,800 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1966
[2024-11-07 02:30:14,800 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-07 02:30:14,802 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 02:30:14,802 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-07 02:30:14,806 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 02:30:14,807 INFO  L85        PathProgramCache]: Analyzing trace with hash 1794592687, now seen corresponding path program 1 times
[2024-11-07 02:30:14,812 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 02:30:14,812 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921535297]
[2024-11-07 02:30:14,813 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 02:30:14,813 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 02:30:16,100 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 02:30:22,261 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 02:30:22,261 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 02:30:22,263 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921535297]
[2024-11-07 02:30:22,264 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921535297] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 02:30:22,264 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 02:30:22,265 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-07 02:30:22,266 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612409353]
[2024-11-07 02:30:22,266 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 02:30:22,273 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-07 02:30:22,273 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 02:30:22,290 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-07 02:30:22,291 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-07 02:30:22,304 INFO  L87              Difference]: Start difference. First operand  has 4308 states, 4306 states have (on average 1.5) internal successors, (6459), 4307 states have internal predecessors, (6459), 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 491.25) internal successors, (1965), 4 states have internal predecessors, (1965), 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)
[2024-11-07 02:30:22,889 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-07 02:30:22,890 INFO  L93              Difference]: Finished difference Result 8514 states and 12769 transitions.
[2024-11-07 02:30:22,891 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-07 02:30:22,892 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 491.25) internal successors, (1965), 4 states have internal predecessors, (1965), 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 1965
[2024-11-07 02:30:22,896 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-07 02:30:22,921 INFO  L225             Difference]: With dead ends: 8514
[2024-11-07 02:30:22,921 INFO  L226             Difference]: Without dead ends: 4304
[2024-11-07 02:30:22,932 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-07 02:30:22,935 INFO  L432           NwaCegarLoop]: 6185 mSDtfsCounter, 4671 mSDsluCounter, 6184 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4671 SdHoareTripleChecker+Valid, 12369 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-07 02:30:22,935 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [4671 Valid, 12369 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 534 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-07 02:30:22,951 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4304 states.
[2024-11-07 02:30:23,030 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4304 to 4304.
[2024-11-07 02:30:23,040 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4304 states, 4303 states have (on average 1.499419009993028) internal successors, (6452), 4303 states have internal predecessors, (6452), 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)
[2024-11-07 02:30:23,053 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4304 states to 4304 states and 6452 transitions.
[2024-11-07 02:30:23,054 INFO  L78                 Accepts]: Start accepts. Automaton has 4304 states and 6452 transitions. Word has length 1965
[2024-11-07 02:30:23,057 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-07 02:30:23,057 INFO  L471      AbstractCegarLoop]: Abstraction has 4304 states and 6452 transitions.
[2024-11-07 02:30:23,058 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 491.25) internal successors, (1965), 4 states have internal predecessors, (1965), 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)
[2024-11-07 02:30:23,058 INFO  L276                IsEmpty]: Start isEmpty. Operand 4304 states and 6452 transitions.
[2024-11-07 02:30:23,111 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1967
[2024-11-07 02:30:23,111 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-07 02:30:23,112 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 02:30:23,113 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-07 02:30:23,113 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-07 02:30:23,113 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 02:30:23,114 INFO  L85        PathProgramCache]: Analyzing trace with hash 1661833658, now seen corresponding path program 1 times
[2024-11-07 02:30:23,114 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 02:30:23,114 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001248421]
[2024-11-07 02:30:23,114 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 02:30:23,114 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 02:30:23,803 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 02:30:26,726 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 02:30:26,726 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 02:30:26,726 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001248421]
[2024-11-07 02:30:26,727 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001248421] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 02:30:26,727 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 02:30:26,727 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-07 02:30:26,727 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811704691]
[2024-11-07 02:30:26,727 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 02:30:26,731 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-07 02:30:26,731 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 02:30:26,732 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-07 02:30:26,732 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-07 02:30:26,733 INFO  L87              Difference]: Start difference. First operand 4304 states and 6452 transitions. Second operand  has 5 states, 5 states have (on average 393.2) internal successors, (1966), 5 states have internal predecessors, (1966), 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)
[2024-11-07 02:30:27,288 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-07 02:30:27,289 INFO  L93              Difference]: Finished difference Result 8510 states and 12758 transitions.
[2024-11-07 02:30:27,289 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-07 02:30:27,290 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 393.2) internal successors, (1966), 5 states have internal predecessors, (1966), 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 1966
[2024-11-07 02:30:27,293 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-07 02:30:27,314 INFO  L225             Difference]: With dead ends: 8510
[2024-11-07 02:30:27,314 INFO  L226             Difference]: Without dead ends: 4304
[2024-11-07 02:30:27,324 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2024-11-07 02:30:27,325 INFO  L432           NwaCegarLoop]: 6185 mSDtfsCounter, 11103 mSDsluCounter, 6184 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11103 SdHoareTripleChecker+Valid, 12369 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-07 02:30:27,325 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [11103 Valid, 12369 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-07 02:30:27,338 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4304 states.
[2024-11-07 02:30:27,471 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4304 to 4304.
[2024-11-07 02:30:27,481 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4304 states, 4303 states have (on average 1.4991866139902394) internal successors, (6451), 4303 states have internal predecessors, (6451), 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)
[2024-11-07 02:30:27,497 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4304 states to 4304 states and 6451 transitions.
[2024-11-07 02:30:27,498 INFO  L78                 Accepts]: Start accepts. Automaton has 4304 states and 6451 transitions. Word has length 1966
[2024-11-07 02:30:27,499 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-07 02:30:27,500 INFO  L471      AbstractCegarLoop]: Abstraction has 4304 states and 6451 transitions.
[2024-11-07 02:30:27,500 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 393.2) internal successors, (1966), 5 states have internal predecessors, (1966), 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)
[2024-11-07 02:30:27,500 INFO  L276                IsEmpty]: Start isEmpty. Operand 4304 states and 6451 transitions.
[2024-11-07 02:30:27,521 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1968
[2024-11-07 02:30:27,521 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-07 02:30:27,522 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 02:30:27,522 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-07 02:30:27,522 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-07 02:30:27,523 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 02:30:27,523 INFO  L85        PathProgramCache]: Analyzing trace with hash 1719805912, now seen corresponding path program 1 times
[2024-11-07 02:30:27,523 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 02:30:27,523 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69267713]
[2024-11-07 02:30:27,523 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 02:30:27,523 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 02:30:28,269 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 02:30:32,131 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 02:30:32,131 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 02:30:32,131 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69267713]
[2024-11-07 02:30:32,131 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69267713] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 02:30:32,132 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 02:30:32,132 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-07 02:30:32,132 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311559910]
[2024-11-07 02:30:32,132 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 02:30:32,134 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-07 02:30:32,134 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 02:30:32,135 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-07 02:30:32,135 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-07 02:30:32,136 INFO  L87              Difference]: Start difference. First operand 4304 states and 6451 transitions. Second operand  has 4 states, 4 states have (on average 491.75) internal successors, (1967), 4 states have internal predecessors, (1967), 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)
[2024-11-07 02:30:32,210 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-07 02:30:32,211 INFO  L93              Difference]: Finished difference Result 4308 states and 6455 transitions.
[2024-11-07 02:30:32,211 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-07 02:30:32,212 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 491.75) internal successors, (1967), 4 states have internal predecessors, (1967), 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 1967
[2024-11-07 02:30:32,214 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-07 02:30:32,225 INFO  L225             Difference]: With dead ends: 4308
[2024-11-07 02:30:32,225 INFO  L226             Difference]: Without dead ends: 4306
[2024-11-07 02:30:32,226 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
[2024-11-07 02:30:32,230 INFO  L432           NwaCegarLoop]: 6449 mSDtfsCounter, 0 mSDsluCounter, 12892 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19341 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-07 02:30:32,230 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19341 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-07 02:30:32,236 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4306 states.
[2024-11-07 02:30:32,290 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4306 to 4306.
[2024-11-07 02:30:32,300 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4306 states, 4305 states have (on average 1.4989547038327526) internal successors, (6453), 4305 states have internal predecessors, (6453), 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)
[2024-11-07 02:30:32,312 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4306 states to 4306 states and 6453 transitions.
[2024-11-07 02:30:32,313 INFO  L78                 Accepts]: Start accepts. Automaton has 4306 states and 6453 transitions. Word has length 1967
[2024-11-07 02:30:32,316 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-07 02:30:32,316 INFO  L471      AbstractCegarLoop]: Abstraction has 4306 states and 6453 transitions.
[2024-11-07 02:30:32,321 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 491.75) internal successors, (1967), 4 states have internal predecessors, (1967), 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)
[2024-11-07 02:30:32,321 INFO  L276                IsEmpty]: Start isEmpty. Operand 4306 states and 6453 transitions.
[2024-11-07 02:30:32,361 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1969
[2024-11-07 02:30:32,363 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-07 02:30:32,365 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 02:30:32,365 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-07 02:30:32,365 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-07 02:30:32,366 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 02:30:32,366 INFO  L85        PathProgramCache]: Analyzing trace with hash 1776083623, now seen corresponding path program 1 times
[2024-11-07 02:30:32,367 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 02:30:32,367 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421273214]
[2024-11-07 02:30:32,367 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 02:30:32,367 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 02:30:33,201 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 02:30:35,329 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 02:30:35,330 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 02:30:35,330 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421273214]
[2024-11-07 02:30:35,330 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421273214] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 02:30:35,330 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 02:30:35,330 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-07 02:30:35,330 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126213549]
[2024-11-07 02:30:35,330 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 02:30:35,332 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-07 02:30:35,332 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 02:30:35,333 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-07 02:30:35,333 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-07 02:30:35,334 INFO  L87              Difference]: Start difference. First operand 4306 states and 6453 transitions. Second operand  has 4 states, 4 states have (on average 492.0) internal successors, (1968), 4 states have internal predecessors, (1968), 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)
[2024-11-07 02:30:35,422 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-07 02:30:35,422 INFO  L93              Difference]: Finished difference Result 8516 states and 12763 transitions.
[2024-11-07 02:30:35,423 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-07 02:30:35,423 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 492.0) internal successors, (1968), 4 states have internal predecessors, (1968), 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 1968
[2024-11-07 02:30:35,426 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-07 02:30:35,436 INFO  L225             Difference]: With dead ends: 8516
[2024-11-07 02:30:35,436 INFO  L226             Difference]: Without dead ends: 4308
[2024-11-07 02:30:35,440 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
[2024-11-07 02:30:35,442 INFO  L432           NwaCegarLoop]: 6449 mSDtfsCounter, 0 mSDsluCounter, 12888 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19337 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-07 02:30:35,443 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19337 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-07 02:30:35,447 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4308 states.
[2024-11-07 02:30:35,492 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4308 to 4308.
[2024-11-07 02:30:35,496 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4308 states, 4307 states have (on average 1.4987230090550268) internal successors, (6455), 4307 states have internal predecessors, (6455), 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)
[2024-11-07 02:30:35,503 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4308 states to 4308 states and 6455 transitions.
[2024-11-07 02:30:35,504 INFO  L78                 Accepts]: Start accepts. Automaton has 4308 states and 6455 transitions. Word has length 1968
[2024-11-07 02:30:35,505 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-07 02:30:35,505 INFO  L471      AbstractCegarLoop]: Abstraction has 4308 states and 6455 transitions.
[2024-11-07 02:30:35,506 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 492.0) internal successors, (1968), 4 states have internal predecessors, (1968), 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)
[2024-11-07 02:30:35,506 INFO  L276                IsEmpty]: Start isEmpty. Operand 4308 states and 6455 transitions.
[2024-11-07 02:30:35,525 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1970
[2024-11-07 02:30:35,525 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-07 02:30:35,526 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 02:30:35,527 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-07 02:30:35,527 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-07 02:30:35,527 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 02:30:35,527 INFO  L85        PathProgramCache]: Analyzing trace with hash -1873935727, now seen corresponding path program 1 times
[2024-11-07 02:30:35,528 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 02:30:35,528 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444204429]
[2024-11-07 02:30:35,528 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 02:30:35,528 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 02:30:43,184 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 02:30:46,268 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 02:30:46,268 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 02:30:46,268 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444204429]
[2024-11-07 02:30:46,268 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444204429] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 02:30:46,268 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 02:30:46,268 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-07 02:30:46,268 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664446546]
[2024-11-07 02:30:46,268 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 02:30:46,270 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-07 02:30:46,270 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 02:30:46,271 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-07 02:30:46,271 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-07 02:30:46,272 INFO  L87              Difference]: Start difference. First operand 4308 states and 6455 transitions. Second operand  has 6 states, 6 states have (on average 328.1666666666667) internal successors, (1969), 6 states have internal predecessors, (1969), 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)
[2024-11-07 02:30:46,742 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-07 02:30:46,742 INFO  L93              Difference]: Finished difference Result 16063 states and 24076 transitions.
[2024-11-07 02:30:46,742 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-07 02:30:46,743 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 328.1666666666667) internal successors, (1969), 6 states have internal predecessors, (1969), 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 1969
[2024-11-07 02:30:46,745 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-07 02:30:46,769 INFO  L225             Difference]: With dead ends: 16063
[2024-11-07 02:30:46,769 INFO  L226             Difference]: Without dead ends: 8502
[2024-11-07 02:30:46,780 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2024-11-07 02:30:46,782 INFO  L432           NwaCegarLoop]: 6410 mSDtfsCounter, 14553 mSDsluCounter, 25423 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14553 SdHoareTripleChecker+Valid, 31833 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-07 02:30:46,782 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [14553 Valid, 31833 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-07 02:30:46,791 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8502 states.
[2024-11-07 02:30:46,852 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8502 to 4350.
[2024-11-07 02:30:46,856 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4350 states, 4349 states have (on average 1.498505403541044) internal successors, (6517), 4349 states have internal predecessors, (6517), 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)
[2024-11-07 02:30:46,861 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4350 states to 4350 states and 6517 transitions.
[2024-11-07 02:30:46,861 INFO  L78                 Accepts]: Start accepts. Automaton has 4350 states and 6517 transitions. Word has length 1969
[2024-11-07 02:30:46,861 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-07 02:30:46,861 INFO  L471      AbstractCegarLoop]: Abstraction has 4350 states and 6517 transitions.
[2024-11-07 02:30:46,862 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 328.1666666666667) internal successors, (1969), 6 states have internal predecessors, (1969), 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)
[2024-11-07 02:30:46,862 INFO  L276                IsEmpty]: Start isEmpty. Operand 4350 states and 6517 transitions.
[2024-11-07 02:30:46,922 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1971
[2024-11-07 02:30:46,923 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-07 02:30:46,923 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 02:30:46,924 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-07 02:30:46,924 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-07 02:30:46,925 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 02:30:46,925 INFO  L85        PathProgramCache]: Analyzing trace with hash -1658045929, now seen corresponding path program 1 times
[2024-11-07 02:30:46,925 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 02:30:46,925 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720739196]
[2024-11-07 02:30:46,925 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 02:30:46,925 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 02:30:47,706 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 02:30:50,662 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 02:30:50,662 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 02:30:50,662 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720739196]
[2024-11-07 02:30:50,662 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720739196] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 02:30:50,662 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 02:30:50,662 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-07 02:30:50,663 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588167470]
[2024-11-07 02:30:50,663 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 02:30:50,664 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-07 02:30:50,664 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 02:30:50,665 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-07 02:30:50,665 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-07 02:30:50,665 INFO  L87              Difference]: Start difference. First operand 4350 states and 6517 transitions. Second operand  has 6 states, 6 states have (on average 328.3333333333333) internal successors, (1970), 6 states have internal predecessors, (1970), 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)
[2024-11-07 02:30:50,911 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-07 02:30:50,911 INFO  L93              Difference]: Finished difference Result 12720 states and 19059 transitions.
[2024-11-07 02:30:50,914 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-07 02:30:50,915 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 328.3333333333333) internal successors, (1970), 6 states have internal predecessors, (1970), 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 1970
[2024-11-07 02:30:50,916 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-07 02:30:50,927 INFO  L225             Difference]: With dead ends: 12720
[2024-11-07 02:30:50,927 INFO  L226             Difference]: Without dead ends: 8468
[2024-11-07 02:30:50,934 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42
[2024-11-07 02:30:50,935 INFO  L432           NwaCegarLoop]: 7791 mSDtfsCounter, 4572 mSDsluCounter, 28421 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4572 SdHoareTripleChecker+Valid, 36212 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-07 02:30:50,935 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [4572 Valid, 36212 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-07 02:30:50,943 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8468 states.
[2024-11-07 02:30:51,023 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8468 to 7547.
[2024-11-07 02:30:51,030 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7547 states, 7546 states have (on average 1.4992048767558972) internal successors, (11313), 7546 states have internal predecessors, (11313), 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)
[2024-11-07 02:30:51,038 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7547 states to 7547 states and 11313 transitions.
[2024-11-07 02:30:51,038 INFO  L78                 Accepts]: Start accepts. Automaton has 7547 states and 11313 transitions. Word has length 1970
[2024-11-07 02:30:51,039 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-07 02:30:51,039 INFO  L471      AbstractCegarLoop]: Abstraction has 7547 states and 11313 transitions.
[2024-11-07 02:30:51,040 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 328.3333333333333) internal successors, (1970), 6 states have internal predecessors, (1970), 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)
[2024-11-07 02:30:51,040 INFO  L276                IsEmpty]: Start isEmpty. Operand 7547 states and 11313 transitions.
[2024-11-07 02:30:51,063 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1971
[2024-11-07 02:30:51,063 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-07 02:30:51,064 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, 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[2024-11-07 02:30:51,064 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-07 02:30:51,064 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-07 02:30:51,065 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 02:30:51,065 INFO  L85        PathProgramCache]: Analyzing trace with hash -188255900, now seen corresponding path program 1 times
[2024-11-07 02:30:51,065 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 02:30:51,065 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66390851]
[2024-11-07 02:30:51,065 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 02:30:51,065 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 02:30:59,624 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 02:31:03,071 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 02:31:03,071 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 02:31:03,072 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66390851]
[2024-11-07 02:31:03,072 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66390851] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 02:31:03,072 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 02:31:03,072 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-07 02:31:03,072 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760556366]
[2024-11-07 02:31:03,072 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 02:31:03,073 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-07 02:31:03,073 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 02:31:03,074 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-07 02:31:03,074 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-11-07 02:31:03,074 INFO  L87              Difference]: Start difference. First operand 7547 states and 11313 transitions. Second operand  has 6 states, 6 states have (on average 328.3333333333333) internal successors, (1970), 6 states have internal predecessors, (1970), 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)
[2024-11-07 02:31:03,568 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-07 02:31:03,569 INFO  L93              Difference]: Finished difference Result 11799 states and 17684 transitions.
[2024-11-07 02:31:03,569 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-07 02:31:03,570 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 328.3333333333333) internal successors, (1970), 6 states have internal predecessors, (1970), 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 1970
[2024-11-07 02:31:03,570 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-07 02:31:03,575 INFO  L225             Difference]: With dead ends: 11799
[2024-11-07 02:31:03,575 INFO  L226             Difference]: Without dead ends: 4350
[2024-11-07 02:31:03,580 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-11-07 02:31:03,580 INFO  L432           NwaCegarLoop]: 6193 mSDtfsCounter, 12629 mSDsluCounter, 12499 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12629 SdHoareTripleChecker+Valid, 18692 SdHoareTripleChecker+Invalid, 821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-11-07 02:31:03,580 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [12629 Valid, 18692 Invalid, 821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-11-07 02:31:03,584 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4350 states.
[2024-11-07 02:31:03,612 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4350 to 4308.
[2024-11-07 02:31:03,617 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4308 states, 4307 states have (on average 1.4982586487114) internal successors, (6453), 4307 states have internal predecessors, (6453), 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)
[2024-11-07 02:31:03,621 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4308 states to 4308 states and 6453 transitions.
[2024-11-07 02:31:03,621 INFO  L78                 Accepts]: Start accepts. Automaton has 4308 states and 6453 transitions. Word has length 1970
[2024-11-07 02:31:03,621 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-07 02:31:03,621 INFO  L471      AbstractCegarLoop]: Abstraction has 4308 states and 6453 transitions.
[2024-11-07 02:31:03,622 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 328.3333333333333) internal successors, (1970), 6 states have internal predecessors, (1970), 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)
[2024-11-07 02:31:03,622 INFO  L276                IsEmpty]: Start isEmpty. Operand 4308 states and 6453 transitions.
[2024-11-07 02:31:03,641 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1972
[2024-11-07 02:31:03,641 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-07 02:31:03,642 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-07 02:31:03,642 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-07 02:31:03,642 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-07 02:31:03,643 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 02:31:03,643 INFO  L85        PathProgramCache]: Analyzing trace with hash 507213742, now seen corresponding path program 1 times
[2024-11-07 02:31:03,643 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 02:31:03,643 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692758851]
[2024-11-07 02:31:03,643 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 02:31:03,644 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-07 02:31:07,193 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-07 02:31:11,602 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-07 02:31:11,602 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-07 02:31:11,602 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692758851]
[2024-11-07 02:31:11,602 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692758851] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-07 02:31:11,603 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-07 02:31:11,603 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-07 02:31:11,603 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434937748]
[2024-11-07 02:31:11,603 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-07 02:31:11,604 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-07 02:31:11,604 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-07 02:31:11,605 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-07 02:31:11,605 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-07 02:31:11,605 INFO  L87              Difference]: Start difference. First operand 4308 states and 6453 transitions. Second operand  has 5 states, 5 states have (on average 394.2) internal successors, (1971), 5 states have internal predecessors, (1971), 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)
[2024-11-07 02:31:11,688 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-07 02:31:11,689 INFO  L93              Difference]: Finished difference Result 8521 states and 12765 transitions.
[2024-11-07 02:31:11,689 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-07 02:31:11,690 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 394.2) internal successors, (1971), 5 states have internal predecessors, (1971), 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 1971
[2024-11-07 02:31:11,690 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-07 02:31:11,696 INFO  L225             Difference]: With dead ends: 8521
[2024-11-07 02:31:11,696 INFO  L226             Difference]: Without dead ends: 4311
[2024-11-07 02:31:11,699 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-07 02:31:11,701 INFO  L432           NwaCegarLoop]: 6446 mSDtfsCounter, 13 mSDsluCounter, 19307 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 25753 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-07 02:31:11,701 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 25753 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-07 02:31:11,704 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4311 states.
[2024-11-07 02:31:11,731 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4311 to 4311.
[2024-11-07 02:31:11,734 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 4311 states, 4310 states have (on average 1.4979118329466357) internal successors, (6456), 4310 states have internal predecessors, (6456), 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)
[2024-11-07 02:31:11,738 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 4311 states to 4311 states and 6456 transitions.
[2024-11-07 02:31:11,738 INFO  L78                 Accepts]: Start accepts. Automaton has 4311 states and 6456 transitions. Word has length 1971
[2024-11-07 02:31:11,739 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-07 02:31:11,739 INFO  L471      AbstractCegarLoop]: Abstraction has 4311 states and 6456 transitions.
[2024-11-07 02:31:11,739 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 394.2) internal successors, (1971), 5 states have internal predecessors, (1971), 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)
[2024-11-07 02:31:11,740 INFO  L276                IsEmpty]: Start isEmpty. Operand 4311 states and 6456 transitions.
[2024-11-07 02:31:11,758 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1973
[2024-11-07 02:31:11,759 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-07 02:31:11,760 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, 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[2024-11-07 02:31:11,760 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-07 02:31:11,760 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-07 02:31:11,760 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-07 02:31:11,761 INFO  L85        PathProgramCache]: Analyzing trace with hash 324179970, now seen corresponding path program 1 times
[2024-11-07 02:31:11,761 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-07 02:31:11,761 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784384561]
[2024-11-07 02:31:11,761 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-07 02:31:11,761 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms