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


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


Checking for ERROR reachability
Using default analysis
Version e7bb482b
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c133da85-0e14-4b9a-bee1-267e05906564/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c133da85-0e14-4b9a-bee1-267e05906564/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c133da85-0e14-4b9a-bee1-267e05906564/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c133da85-0e14-4b9a-bee1-267e05906564/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cyclic_scheduler.3.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c133da85-0e14-4b9a-bee1-267e05906564/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c133da85-0e14-4b9a-bee1-267e05906564/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fccd0da7383ea8f4dc1e1db10d13474c22452cb599ee4449d6079e41ee05e51d
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-e7bb482
[2023-11-06 22:43:59,050 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-11-06 22:43:59,147 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c133da85-0e14-4b9a-bee1-267e05906564/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Default.epf
[2023-11-06 22:43:59,151 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-11-06 22:43:59,152 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-06 22:43:59,176 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-06 22:43:59,177 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-06 22:43:59,177 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-06 22:43:59,178 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-06 22:43:59,179 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-06 22:43:59,179 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-06 22:43:59,180 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-11-06 22:43:59,181 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-11-06 22:43:59,181 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-06 22:43:59,182 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-11-06 22:43:59,182 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-11-06 22:43:59,183 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-11-06 22:43:59,183 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-11-06 22:43:59,184 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-06 22:43:59,184 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-11-06 22:43:59,184 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-11-06 22:43:59,185 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-11-06 22:43:59,186 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-06 22:43:59,186 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-11-06 22:43:59,186 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-11-06 22:43:59,187 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-06 22:43:59,187 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-06 22:43:59,188 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-11-06 22:43:59,188 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2023-11-06 22:43:59,189 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-11-06 22:43:59,189 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-06 22:43:59,189 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-06 22:43:59,190 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-06 22:43:59,190 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-11-06 22:43:59,191 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-06 22:43:59,191 INFO  L153        SettingsManager]:  * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-06 22:43:59,192 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c133da85-0e14-4b9a-bee1-267e05906564/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c133da85-0e14-4b9a-bee1-267e05906564/bin/uautomizer-verify-WvqO1wxjHP
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fccd0da7383ea8f4dc1e1db10d13474c22452cb599ee4449d6079e41ee05e51d
[2023-11-06 22:43:59,443 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-06 22:43:59,478 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-06 22:43:59,481 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-06 22:43:59,484 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-11-06 22:43:59,485 INFO  L274        PluginConnector]: CDTParser initialized
[2023-11-06 22:43:59,487 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c133da85-0e14-4b9a-bee1-267e05906564/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cyclic_scheduler.3.prop1-func-interl.c
[2023-11-06 22:44:02,720 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-11-06 22:44:03,160 INFO  L384              CDTParser]: Found 1 translation units.
[2023-11-06 22:44:03,161 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c133da85-0e14-4b9a-bee1-267e05906564/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cyclic_scheduler.3.prop1-func-interl.c
[2023-11-06 22:44:03,198 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c133da85-0e14-4b9a-bee1-267e05906564/bin/uautomizer-verify-WvqO1wxjHP/data/93c6f7a95/9d839abd6ca845f1b60582b31d99d7ae/FLAGb14c0b38b
[2023-11-06 22:44:03,218 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c133da85-0e14-4b9a-bee1-267e05906564/bin/uautomizer-verify-WvqO1wxjHP/data/93c6f7a95/9d839abd6ca845f1b60582b31d99d7ae
[2023-11-06 22:44:03,227 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-06 22:44:03,229 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-06 22:44:03,231 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-06 22:44:03,232 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-06 22:44:03,237 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-06 22:44:03,238 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:44:03" (1/1) ...
[2023-11-06 22:44:03,239 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d005030 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:03, skipping insertion in model container
[2023-11-06 22:44:03,239 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:44:03" (1/1) ...
[2023-11-06 22:44:03,379 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-11-06 22:44:03,676 WARN  L240   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c133da85-0e14-4b9a-bee1-267e05906564/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cyclic_scheduler.3.prop1-func-interl.c[1183,1196]
[2023-11-06 22:44:04,611 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-06 22:44:04,622 INFO  L202         MainTranslator]: Completed pre-run
[2023-11-06 22:44:04,634 WARN  L240   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c133da85-0e14-4b9a-bee1-267e05906564/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cyclic_scheduler.3.prop1-func-interl.c[1183,1196]
[2023-11-06 22:44:05,195 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-06 22:44:05,212 INFO  L206         MainTranslator]: Completed translation
[2023-11-06 22:44:05,213 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:05 WrapperNode
[2023-11-06 22:44:05,213 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-06 22:44:05,216 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-06 22:44:05,217 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-06 22:44:05,217 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-06 22:44:05,224 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:05" (1/1) ...
[2023-11-06 22:44:05,426 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:05" (1/1) ...
[2023-11-06 22:44:07,904 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 23111
[2023-11-06 22:44:07,905 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-06 22:44:07,906 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-06 22:44:07,906 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-06 22:44:07,906 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-11-06 22:44:07,917 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:05" (1/1) ...
[2023-11-06 22:44:07,917 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:05" (1/1) ...
[2023-11-06 22:44:08,625 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:05" (1/1) ...
[2023-11-06 22:44:08,625 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:05" (1/1) ...
[2023-11-06 22:44:09,293 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:05" (1/1) ...
[2023-11-06 22:44:09,604 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:05" (1/1) ...
[2023-11-06 22:44:09,767 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:05" (1/1) ...
[2023-11-06 22:44:09,857 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:05" (1/1) ...
[2023-11-06 22:44:10,226 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-06 22:44:10,228 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-06 22:44:10,228 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-11-06 22:44:10,228 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-11-06 22:44:10,229 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:05" (1/1) ...
[2023-11-06 22:44:10,237 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-06 22:44:10,250 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c133da85-0e14-4b9a-bee1-267e05906564/bin/uautomizer-verify-WvqO1wxjHP/z3
[2023-11-06 22:44:10,265 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c133da85-0e14-4b9a-bee1-267e05906564/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-06 22:44:10,289 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c133da85-0e14-4b9a-bee1-267e05906564/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-06 22:44:10,309 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-06 22:44:10,310 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2023-11-06 22:44:10,311 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-06 22:44:10,311 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-06 22:44:11,487 INFO  L236             CfgBuilder]: Building ICFG
[2023-11-06 22:44:11,489 INFO  L262             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-06 22:44:24,630 INFO  L277             CfgBuilder]: Performing block encoding
[2023-11-06 22:44:24,680 INFO  L297             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-06 22:44:24,680 INFO  L302             CfgBuilder]: Removed 1 assume(true) statements.
[2023-11-06 22:44:24,689 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:44:24 BoogieIcfgContainer
[2023-11-06 22:44:24,689 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-06 22:44:24,693 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-06 22:44:24,693 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-11-06 22:44:24,696 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-11-06 22:44:24,697 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:44:03" (1/3) ...
[2023-11-06 22:44:24,699 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c355dc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:44:24, skipping insertion in model container
[2023-11-06 22:44:24,699 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:44:05" (2/3) ...
[2023-11-06 22:44:24,700 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c355dc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:44:24, skipping insertion in model container
[2023-11-06 22:44:24,701 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:44:24" (3/3) ...
[2023-11-06 22:44:24,703 INFO  L112   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cyclic_scheduler.3.prop1-func-interl.c
[2023-11-06 22:44:24,722 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-06 22:44:24,722 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-11-06 22:44:24,882 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-06 22:44:24,891 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@31497527, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-06 22:44:24,892 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-11-06 22:44:24,913 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 5255 states, 5253 states have (on average 1.6662859318484675) internal successors, (8753), 5254 states have internal predecessors, (8753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:44:24,945 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 326
[2023-11-06 22:44:24,945 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-06 22:44:24,946 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-06 22:44:24,947 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-06 22:44:24,952 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-06 22:44:24,952 INFO  L85        PathProgramCache]: Analyzing trace with hash -1900453083, now seen corresponding path program 1 times
[2023-11-06 22:44:24,959 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-06 22:44:24,960 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996124526]
[2023-11-06 22:44:24,960 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-06 22:44:24,961 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-06 22:44:25,570 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-06 22:44:27,312 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-06 22:44:27,315 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-06 22:44:27,316 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996124526]
[2023-11-06 22:44:27,317 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996124526] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-06 22:44:27,317 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-06 22:44:27,317 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-06 22:44:27,319 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046415292]
[2023-11-06 22:44:27,321 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-06 22:44:27,328 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-06 22:44:27,328 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-06 22:44:27,375 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-06 22:44:27,376 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-11-06 22:44:27,392 INFO  L87              Difference]: Start difference. First operand  has 5255 states, 5253 states have (on average 1.6662859318484675) internal successors, (8753), 5254 states have internal predecessors, (8753), 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 5 states, 5 states have (on average 65.0) internal successors, (325), 5 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:44:34,897 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-06 22:44:34,898 INFO  L93              Difference]: Finished difference Result 15045 states and 25069 transitions.
[2023-11-06 22:44:34,899 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-06 22:44:34,900 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 65.0) internal successors, (325), 5 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 325
[2023-11-06 22:44:34,902 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-06 22:44:34,980 INFO  L225             Difference]: With dead ends: 15045
[2023-11-06 22:44:34,980 INFO  L226             Difference]: Without dead ends: 10146
[2023-11-06 22:44:34,995 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2023-11-06 22:44:34,999 INFO  L413           NwaCegarLoop]: 6688 mSDtfsCounter, 24739 mSDsluCounter, 13369 mSDsCounter, 0 mSdLazyCounter, 6184 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24739 SdHoareTripleChecker+Valid, 20057 SdHoareTripleChecker+Invalid, 6185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time
[2023-11-06 22:44:35,000 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [24739 Valid, 20057 Invalid, 6185 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1 Valid, 6184 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time]
[2023-11-06 22:44:35,037 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10146 states.
[2023-11-06 22:44:35,227 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10146 to 5371.
[2023-11-06 22:44:35,241 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5371 states, 5370 states have (on average 1.6657355679702048) internal successors, (8945), 5370 states have internal predecessors, (8945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:44:35,262 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5371 states to 5371 states and 8945 transitions.
[2023-11-06 22:44:35,264 INFO  L78                 Accepts]: Start accepts. Automaton has 5371 states and 8945 transitions. Word has length 325
[2023-11-06 22:44:35,266 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-06 22:44:35,267 INFO  L495      AbstractCegarLoop]: Abstraction has 5371 states and 8945 transitions.
[2023-11-06 22:44:35,267 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 65.0) internal successors, (325), 5 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:44:35,267 INFO  L276                IsEmpty]: Start isEmpty. Operand 5371 states and 8945 transitions.
[2023-11-06 22:44:35,275 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 327
[2023-11-06 22:44:35,275 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-06 22:44:35,276 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-06 22:44:35,276 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2023-11-06 22:44:35,276 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-06 22:44:35,277 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-06 22:44:35,277 INFO  L85        PathProgramCache]: Analyzing trace with hash -218311527, now seen corresponding path program 1 times
[2023-11-06 22:44:35,278 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-06 22:44:35,278 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327631555]
[2023-11-06 22:44:35,278 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-06 22:44:35,278 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-06 22:44:35,440 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-06 22:44:36,557 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-06 22:44:36,558 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-06 22:44:36,559 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327631555]
[2023-11-06 22:44:36,559 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327631555] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-06 22:44:36,559 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-06 22:44:36,559 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-06 22:44:36,560 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248071803]
[2023-11-06 22:44:36,560 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-06 22:44:36,563 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-06 22:44:36,563 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-06 22:44:36,564 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-06 22:44:36,564 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-06 22:44:36,565 INFO  L87              Difference]: Start difference. First operand 5371 states and 8945 transitions. Second operand  has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:44:36,745 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-06 22:44:36,745 INFO  L93              Difference]: Finished difference Result 5375 states and 8949 transitions.
[2023-11-06 22:44:36,746 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-11-06 22:44:36,746 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 326
[2023-11-06 22:44:36,748 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-06 22:44:36,780 INFO  L225             Difference]: With dead ends: 5375
[2023-11-06 22:44:36,780 INFO  L226             Difference]: Without dead ends: 5373
[2023-11-06 22:44:36,787 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-06 22:44:36,790 INFO  L413           NwaCegarLoop]: 8745 mSDtfsCounter, 1 mSDsluCounter, 17484 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 26229 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-06 22:44:36,791 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 26229 Invalid, 11 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-06 22:44:36,804 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5373 states.
[2023-11-06 22:44:36,899 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5373 to 5373.
[2023-11-06 22:44:36,912 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5373 states, 5372 states have (on average 1.665487714072971) internal successors, (8947), 5372 states have internal predecessors, (8947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:44:36,932 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5373 states to 5373 states and 8947 transitions.
[2023-11-06 22:44:36,933 INFO  L78                 Accepts]: Start accepts. Automaton has 5373 states and 8947 transitions. Word has length 326
[2023-11-06 22:44:36,934 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-06 22:44:36,935 INFO  L495      AbstractCegarLoop]: Abstraction has 5373 states and 8947 transitions.
[2023-11-06 22:44:36,935 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:44:36,935 INFO  L276                IsEmpty]: Start isEmpty. Operand 5373 states and 8947 transitions.
[2023-11-06 22:44:36,940 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 328
[2023-11-06 22:44:36,941 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-06 22:44:36,941 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-06 22:44:36,941 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2023-11-06 22:44:36,942 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-06 22:44:36,942 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-06 22:44:36,943 INFO  L85        PathProgramCache]: Analyzing trace with hash 1824004123, now seen corresponding path program 1 times
[2023-11-06 22:44:36,944 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-06 22:44:36,944 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618606316]
[2023-11-06 22:44:36,944 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-06 22:44:36,945 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-06 22:44:37,099 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-06 22:44:37,673 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-06 22:44:37,674 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-06 22:44:37,674 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618606316]
[2023-11-06 22:44:37,675 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618606316] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-06 22:44:37,675 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-06 22:44:37,676 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-06 22:44:37,676 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652644650]
[2023-11-06 22:44:37,676 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-06 22:44:37,677 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-06 22:44:37,677 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-06 22:44:37,678 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-06 22:44:37,678 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-06 22:44:37,679 INFO  L87              Difference]: Start difference. First operand 5373 states and 8947 transitions. Second operand  has 4 states, 4 states have (on average 81.75) internal successors, (327), 4 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:44:37,885 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-06 22:44:37,885 INFO  L93              Difference]: Finished difference Result 10273 states and 17108 transitions.
[2023-11-06 22:44:37,885 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-11-06 22:44:37,886 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 81.75) internal successors, (327), 4 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 327
[2023-11-06 22:44:37,887 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-06 22:44:37,914 INFO  L225             Difference]: With dead ends: 10273
[2023-11-06 22:44:37,914 INFO  L226             Difference]: Without dead ends: 5376
[2023-11-06 22:44:37,924 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-06 22:44:37,930 INFO  L413           NwaCegarLoop]: 8745 mSDtfsCounter, 1 mSDsluCounter, 17481 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 26226 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-06 22:44:37,931 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 26226 Invalid, 14 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-06 22:44:37,942 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5376 states.
[2023-11-06 22:44:38,229 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5376 to 5375.
[2023-11-06 22:44:38,248 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5375 states, 5374 states have (on average 1.6652400446594715) internal successors, (8949), 5374 states have internal predecessors, (8949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:44:38,275 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5375 states to 5375 states and 8949 transitions.
[2023-11-06 22:44:38,276 INFO  L78                 Accepts]: Start accepts. Automaton has 5375 states and 8949 transitions. Word has length 327
[2023-11-06 22:44:38,277 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-06 22:44:38,277 INFO  L495      AbstractCegarLoop]: Abstraction has 5375 states and 8949 transitions.
[2023-11-06 22:44:38,279 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 81.75) internal successors, (327), 4 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:44:38,282 INFO  L276                IsEmpty]: Start isEmpty. Operand 5375 states and 8949 transitions.
[2023-11-06 22:44:38,288 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 329
[2023-11-06 22:44:38,288 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-06 22:44:38,288 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-06 22:44:38,289 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2023-11-06 22:44:38,290 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-06 22:44:38,291 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-06 22:44:38,292 INFO  L85        PathProgramCache]: Analyzing trace with hash 499122419, now seen corresponding path program 1 times
[2023-11-06 22:44:38,292 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-06 22:44:38,296 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970284438]
[2023-11-06 22:44:38,296 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-06 22:44:38,297 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-06 22:44:38,449 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-06 22:44:39,198 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-06 22:44:39,199 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-06 22:44:39,199 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970284438]
[2023-11-06 22:44:39,199 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970284438] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-06 22:44:39,199 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-06 22:44:39,200 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-06 22:44:39,200 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517704390]
[2023-11-06 22:44:39,200 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-06 22:44:39,201 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-06 22:44:39,201 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-06 22:44:39,202 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-06 22:44:39,202 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-11-06 22:44:39,203 INFO  L87              Difference]: Start difference. First operand 5375 states and 8949 transitions. Second operand  has 5 states, 5 states have (on average 65.6) internal successors, (328), 5 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:44:39,698 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-06 22:44:39,698 INFO  L93              Difference]: Finished difference Result 15163 states and 25252 transitions.
[2023-11-06 22:44:39,699 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-11-06 22:44:39,699 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 65.6) internal successors, (328), 5 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 328
[2023-11-06 22:44:39,700 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-06 22:44:39,749 INFO  L225             Difference]: With dead ends: 15163
[2023-11-06 22:44:39,750 INFO  L226             Difference]: Without dead ends: 10264
[2023-11-06 22:44:39,758 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2023-11-06 22:44:39,763 INFO  L413           NwaCegarLoop]: 8937 mSDtfsCounter, 33058 mSDsluCounter, 17480 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33058 SdHoareTripleChecker+Valid, 26417 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-06 22:44:39,764 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [33058 Valid, 26417 Invalid, 20 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-06 22:44:39,779 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10264 states.
[2023-11-06 22:44:39,906 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10264 to 5377.
[2023-11-06 22:44:39,915 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5377 states, 5376 states have (on average 1.6649925595238095) internal successors, (8951), 5376 states have internal predecessors, (8951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:44:39,928 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5377 states to 5377 states and 8951 transitions.
[2023-11-06 22:44:39,928 INFO  L78                 Accepts]: Start accepts. Automaton has 5377 states and 8951 transitions. Word has length 328
[2023-11-06 22:44:39,929 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-06 22:44:39,929 INFO  L495      AbstractCegarLoop]: Abstraction has 5377 states and 8951 transitions.
[2023-11-06 22:44:39,929 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 65.6) internal successors, (328), 5 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:44:39,930 INFO  L276                IsEmpty]: Start isEmpty. Operand 5377 states and 8951 transitions.
[2023-11-06 22:44:40,370 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3592
[2023-11-06 22:44:40,370 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-06 22:44:40,373 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2023-11-06 22:44:40,373 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2023-11-06 22:44:40,374 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-06 22:44:40,374 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-06 22:44:40,376 INFO  L85        PathProgramCache]: Analyzing trace with hash 1593587163, now seen corresponding path program 1 times
[2023-11-06 22:44:40,376 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-06 22:44:40,376 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748707462]
[2023-11-06 22:44:40,377 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-06 22:44:40,378 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-06 22:44:47,970 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-06 22:45:01,171 INFO  L134       CoverageAnalysis]: Checked inductivity of 86 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked.
[2023-11-06 22:45:01,172 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-06 22:45:01,172 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748707462]
[2023-11-06 22:45:01,172 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748707462] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-06 22:45:01,172 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-06 22:45:01,173 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2023-11-06 22:45:01,173 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25360406]
[2023-11-06 22:45:01,173 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-06 22:45:01,178 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-06 22:45:01,178 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-06 22:45:01,182 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-06 22:45:01,182 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-11-06 22:45:01,184 INFO  L87              Difference]: Start difference. First operand 5377 states and 8951 transitions. Second operand  has 5 states, 5 states have (on average 702.4) internal successors, (3512), 5 states have internal predecessors, (3512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:45:01,700 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-06 22:45:01,700 INFO  L93              Difference]: Finished difference Result 15165 states and 25254 transitions.
[2023-11-06 22:45:01,701 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2023-11-06 22:45:01,704 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 702.4) internal successors, (3512), 5 states have internal predecessors, (3512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3591
[2023-11-06 22:45:01,711 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-06 22:45:01,729 INFO  L225             Difference]: With dead ends: 15165
[2023-11-06 22:45:01,730 INFO  L226             Difference]: Without dead ends: 10266
[2023-11-06 22:45:01,738 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-11-06 22:45:01,738 INFO  L413           NwaCegarLoop]: 16888 mSDtfsCounter, 8141 mSDsluCounter, 42495 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8141 SdHoareTripleChecker+Valid, 59383 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2023-11-06 22:45:01,739 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [8141 Valid, 59383 Invalid, 35 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2023-11-06 22:45:01,755 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10266 states.
[2023-11-06 22:45:01,875 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10266 to 5377.
[2023-11-06 22:45:01,883 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5377 states, 5376 states have (on average 1.6649925595238095) internal successors, (8951), 5376 states have internal predecessors, (8951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:45:01,895 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5377 states to 5377 states and 8951 transitions.
[2023-11-06 22:45:01,895 INFO  L78                 Accepts]: Start accepts. Automaton has 5377 states and 8951 transitions. Word has length 3591
[2023-11-06 22:45:01,902 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-06 22:45:01,902 INFO  L495      AbstractCegarLoop]: Abstraction has 5377 states and 8951 transitions.
[2023-11-06 22:45:01,903 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 702.4) internal successors, (3512), 5 states have internal predecessors, (3512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:45:01,904 INFO  L276                IsEmpty]: Start isEmpty. Operand 5377 states and 8951 transitions.
[2023-11-06 22:45:02,660 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3593
[2023-11-06 22:45:02,661 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-06 22:45:02,664 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2023-11-06 22:45:02,664 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2023-11-06 22:45:02,665 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-06 22:45:02,665 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-06 22:45:02,667 INFO  L85        PathProgramCache]: Analyzing trace with hash -931523817, now seen corresponding path program 1 times
[2023-11-06 22:45:02,667 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-06 22:45:02,667 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010173559]
[2023-11-06 22:45:02,668 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-06 22:45:02,669 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-06 22:45:37,709 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-06 22:45:48,115 INFO  L134       CoverageAnalysis]: Checked inductivity of 87 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-06 22:45:48,115 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-06 22:45:48,116 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010173559]
[2023-11-06 22:45:48,116 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010173559] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-06 22:45:48,116 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-06 22:45:48,117 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-11-06 22:45:48,117 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503992004]
[2023-11-06 22:45:48,117 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-06 22:45:48,121 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-11-06 22:45:48,122 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-06 22:45:48,126 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-11-06 22:45:48,126 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-11-06 22:45:48,128 INFO  L87              Difference]: Start difference. First operand 5377 states and 8951 transitions. Second operand  has 6 states, 6 states have (on average 598.6666666666666) internal successors, (3592), 6 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:45:51,858 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-06 22:45:51,858 INFO  L93              Difference]: Finished difference Result 15127 states and 25175 transitions.
[2023-11-06 22:45:51,858 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-11-06 22:45:51,859 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 598.6666666666666) internal successors, (3592), 6 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3592
[2023-11-06 22:45:51,860 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-06 22:45:51,878 INFO  L225             Difference]: With dead ends: 15127
[2023-11-06 22:45:51,879 INFO  L226             Difference]: Without dead ends: 10226
[2023-11-06 22:45:51,886 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72
[2023-11-06 22:45:51,887 INFO  L413           NwaCegarLoop]: 7178 mSDtfsCounter, 32698 mSDsluCounter, 15271 mSDsCounter, 0 mSdLazyCounter, 3497 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32698 SdHoareTripleChecker+Valid, 22449 SdHoareTripleChecker+Invalid, 3536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 3497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time
[2023-11-06 22:45:51,887 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [32698 Valid, 22449 Invalid, 3536 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [39 Valid, 3497 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time]
[2023-11-06 22:45:51,899 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10226 states.
[2023-11-06 22:45:51,992 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10226 to 5463.
[2023-11-06 22:45:52,000 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5463 states, 5462 states have (on average 1.6640424752837788) internal successors, (9089), 5462 states have internal predecessors, (9089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:45:52,012 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5463 states to 5463 states and 9089 transitions.
[2023-11-06 22:45:52,013 INFO  L78                 Accepts]: Start accepts. Automaton has 5463 states and 9089 transitions. Word has length 3592
[2023-11-06 22:45:52,014 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-06 22:45:52,014 INFO  L495      AbstractCegarLoop]: Abstraction has 5463 states and 9089 transitions.
[2023-11-06 22:45:52,015 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 598.6666666666666) internal successors, (3592), 6 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:45:52,016 INFO  L276                IsEmpty]: Start isEmpty. Operand 5463 states and 9089 transitions.
[2023-11-06 22:45:52,111 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3594
[2023-11-06 22:45:52,111 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-06 22:45:52,114 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2023-11-06 22:45:52,115 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2023-11-06 22:45:52,115 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-06 22:45:52,115 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-06 22:45:52,117 INFO  L85        PathProgramCache]: Analyzing trace with hash 466381789, now seen corresponding path program 1 times
[2023-11-06 22:45:52,118 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-06 22:45:52,118 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598108648]
[2023-11-06 22:45:52,119 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-06 22:45:52,120 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-06 22:46:29,535 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-06 22:46:39,080 INFO  L134       CoverageAnalysis]: Checked inductivity of 87 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-06 22:46:39,080 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-06 22:46:39,081 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598108648]
[2023-11-06 22:46:39,081 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598108648] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-06 22:46:39,081 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-06 22:46:39,082 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2023-11-06 22:46:39,082 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277945758]
[2023-11-06 22:46:39,082 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-06 22:46:39,087 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2023-11-06 22:46:39,087 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-06 22:46:39,092 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2023-11-06 22:46:39,092 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-11-06 22:46:39,094 INFO  L87              Difference]: Start difference. First operand 5463 states and 9089 transitions. Second operand  has 6 states, 6 states have (on average 598.8333333333334) internal successors, (3593), 6 states have internal predecessors, (3593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:46:45,078 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-06 22:46:45,079 INFO  L93              Difference]: Finished difference Result 20001 states and 33138 transitions.
[2023-11-06 22:46:45,080 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2023-11-06 22:46:45,082 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 598.8333333333334) internal successors, (3593), 6 states have internal predecessors, (3593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3593
[2023-11-06 22:46:45,083 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-06 22:46:45,111 INFO  L225             Difference]: With dead ends: 20001
[2023-11-06 22:46:45,111 INFO  L226             Difference]: Without dead ends: 15100
[2023-11-06 22:46:45,119 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-11-06 22:46:45,120 INFO  L413           NwaCegarLoop]: 7180 mSDtfsCounter, 23229 mSDsluCounter, 28818 mSDsCounter, 0 mSdLazyCounter, 5549 mSolverCounterSat, 419 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23229 SdHoareTripleChecker+Valid, 35998 SdHoareTripleChecker+Invalid, 5968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 419 IncrementalHoareTripleChecker+Valid, 5549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time
[2023-11-06 22:46:45,120 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [23229 Valid, 35998 Invalid, 5968 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [419 Valid, 5549 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time]
[2023-11-06 22:46:45,137 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 15100 states.
[2023-11-06 22:46:45,279 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 15100 to 6062.
[2023-11-06 22:46:45,289 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6062 states, 6061 states have (on average 1.6592971456855306) internal successors, (10057), 6061 states have internal predecessors, (10057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:46:45,305 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6062 states to 6062 states and 10057 transitions.
[2023-11-06 22:46:45,305 INFO  L78                 Accepts]: Start accepts. Automaton has 6062 states and 10057 transitions. Word has length 3593
[2023-11-06 22:46:45,307 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-06 22:46:45,307 INFO  L495      AbstractCegarLoop]: Abstraction has 6062 states and 10057 transitions.
[2023-11-06 22:46:45,308 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 598.8333333333334) internal successors, (3593), 6 states have internal predecessors, (3593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-06 22:46:45,308 INFO  L276                IsEmpty]: Start isEmpty. Operand 6062 states and 10057 transitions.
[2023-11-06 22:46:45,416 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3595
[2023-11-06 22:46:45,417 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-06 22:46:45,420 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2023-11-06 22:46:45,420 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2023-11-06 22:46:45,421 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-06 22:46:45,421 INFO  L145       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-06 22:46:45,423 INFO  L85        PathProgramCache]: Analyzing trace with hash 1764502695, now seen corresponding path program 1 times
[2023-11-06 22:46:45,423 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-06 22:46:45,423 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897176831]
[2023-11-06 22:46:45,424 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-06 22:46:45,424 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-06 22:47:19,575 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat