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


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


Checking for ERROR reachability
Using default analysis
Version d790fecc
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ed2fcb-9484-4018-871a-834e69978141/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ed2fcb-9484-4018-871a-834e69978141/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ed2fcb-9484-4018-871a-834e69978141/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ed2fcb-9484-4018-871a-834e69978141/bin/uautomizer-verify-84ZbGMXZE1/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_d9ed2fcb-9484-4018-871a-834e69978141/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ed2fcb-9484-4018-871a-834e69978141/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fccd0da7383ea8f4dc1e1db10d13474c22452cb599ee4449d6079e41ee05e51d
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-02 14:01:38,419 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-12-02 14:01:38,472 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ed2fcb-9484-4018-871a-834e69978141/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf
[2024-12-02 14:01:38,476 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-12-02 14:01:38,476 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-02 14:01:38,495 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-02 14:01:38,496 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-02 14:01:38,496 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-02 14:01:38,496 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-02 14:01:38,496 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-12-02 14:01:38,497 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-02 14:01:38,497 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-02 14:01:38,497 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-02 14:01:38,497 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-12-02 14:01:38,497 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-12-02 14:01:38,497 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-02 14:01:38,497 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-12-02 14:01:38,497 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-12-02 14:01:38,498 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-12-02 14:01:38,498 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-12-02 14:01:38,498 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-02 14:01:38,498 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-12-02 14:01:38,498 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-12-02 14:01:38,498 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-02 14:01:38,498 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-12-02 14:01:38,498 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-02 14:01:38,498 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-12-02 14:01:38,498 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 14:01:38,498 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-12-02 14:01:38,498 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 14:01:38,498 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-02 14:01:38,498 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-12-02 14:01:38,499 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 14:01:38,499 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-12-02 14:01:38,499 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 14:01:38,499 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-02 14:01:38,499 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-12-02 14:01:38,499 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2024-12-02 14:01:38,499 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-12-02 14:01:38,499 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-12-02 14:01:38,499 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-12-02 14:01:38,499 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-02 14:01:38,499 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-02 14:01:38,499 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-12-02 14:01:38,499 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-02 14:01:38,499 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ed2fcb-9484-4018-871a-834e69978141/bin/uautomizer-verify-84ZbGMXZE1
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fccd0da7383ea8f4dc1e1db10d13474c22452cb599ee4449d6079e41ee05e51d
[2024-12-02 14:01:38,723 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-02 14:01:38,731 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-02 14:01:38,733 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-02 14:01:38,735 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-12-02 14:01:38,735 INFO  L274        PluginConnector]: CDTParser initialized
[2024-12-02 14:01:38,736 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ed2fcb-9484-4018-871a-834e69978141/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cyclic_scheduler.3.prop1-func-interl.c
[2024-12-02 14:01:41,339 INFO  L533              CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ed2fcb-9484-4018-871a-834e69978141/bin/uautomizer-verify-84ZbGMXZE1/data/5ea219a8e/2f11a30349fc4db3ba50e39997a00b7d/FLAG82cc21d30
[2024-12-02 14:01:41,713 INFO  L384              CDTParser]: Found 1 translation units.
[2024-12-02 14:01:41,714 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ed2fcb-9484-4018-871a-834e69978141/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cyclic_scheduler.3.prop1-func-interl.c
[2024-12-02 14:01:41,737 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ed2fcb-9484-4018-871a-834e69978141/bin/uautomizer-verify-84ZbGMXZE1/data/5ea219a8e/2f11a30349fc4db3ba50e39997a00b7d/FLAG82cc21d30
[2024-12-02 14:01:41,898 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ed2fcb-9484-4018-871a-834e69978141/bin/uautomizer-verify-84ZbGMXZE1/data/5ea219a8e/2f11a30349fc4db3ba50e39997a00b7d
[2024-12-02 14:01:41,901 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-02 14:01:41,902 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-02 14:01:41,903 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-02 14:01:41,903 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-02 14:01:41,906 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-02 14:01:41,907 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:01:41" (1/1) ...
[2024-12-02 14:01:41,908 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@314afadb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:01:41, skipping insertion in model container
[2024-12-02 14:01:41,908 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:01:41" (1/1) ...
[2024-12-02 14:01:41,978 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-12-02 14:01:42,172 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ed2fcb-9484-4018-871a-834e69978141/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cyclic_scheduler.3.prop1-func-interl.c[1183,1196]
[2024-12-02 14:01:42,652 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-12-02 14:01:42,660 INFO  L200         MainTranslator]: Completed pre-run
[2024-12-02 14:01:42,667 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ed2fcb-9484-4018-871a-834e69978141/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cyclic_scheduler.3.prop1-func-interl.c[1183,1196]
[2024-12-02 14:01:43,017 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-12-02 14:01:43,028 INFO  L204         MainTranslator]: Completed translation
[2024-12-02 14:01:43,029 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:01:43 WrapperNode
[2024-12-02 14:01:43,029 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-02 14:01:43,030 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-02 14:01:43,030 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-02 14:01:43,030 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-02 14:01:43,036 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:01:43" (1/1) ...
[2024-12-02 14:01:43,130 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:01:43" (1/1) ...
[2024-12-02 14:01:44,375 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 19612
[2024-12-02 14:01:44,376 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-02 14:01:44,377 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-02 14:01:44,377 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-02 14:01:44,377 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-12-02 14:01:44,384 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:01:43" (1/1) ...
[2024-12-02 14:01:44,384 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:01:43" (1/1) ...
[2024-12-02 14:01:44,880 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:01:43" (1/1) ...
[2024-12-02 14:01:45,108 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-12-02 14:01:45,109 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:01:43" (1/1) ...
[2024-12-02 14:01:45,109 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:01:43" (1/1) ...
[2024-12-02 14:01:45,576 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:01:43" (1/1) ...
[2024-12-02 14:01:45,608 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:01:43" (1/1) ...
[2024-12-02 14:01:45,680 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:01:43" (1/1) ...
[2024-12-02 14:01:45,768 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:01:43" (1/1) ...
[2024-12-02 14:01:45,824 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:01:43" (1/1) ...
[2024-12-02 14:01:46,029 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-02 14:01:46,030 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-02 14:01:46,030 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-12-02 14:01:46,030 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-12-02 14:01:46,031 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:01:43" (1/1) ...
[2024-12-02 14:01:46,035 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 14:01:46,046 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ed2fcb-9484-4018-871a-834e69978141/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 14:01:46,055 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ed2fcb-9484-4018-871a-834e69978141/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-12-02 14:01:46,057 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ed2fcb-9484-4018-871a-834e69978141/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-12-02 14:01:46,079 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-12-02 14:01:46,079 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-12-02 14:01:46,079 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-02 14:01:46,079 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-02 14:01:46,936 INFO  L234             CfgBuilder]: Building ICFG
[2024-12-02 14:01:46,938 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-02 14:02:26,090 INFO  L?                        ?]: Removed 10884 outVars from TransFormulas that were not future-live.
[2024-12-02 14:02:26,091 INFO  L283             CfgBuilder]: Performing block encoding
[2024-12-02 14:02:26,173 INFO  L307             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-02 14:02:26,174 INFO  L312             CfgBuilder]: Removed 1 assume(true) statements.
[2024-12-02 14:02:26,174 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:02:26 BoogieIcfgContainer
[2024-12-02 14:02:26,174 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-02 14:02:26,176 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-12-02 14:02:26,176 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-12-02 14:02:26,180 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-12-02 14:02:26,181 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:01:41" (1/3) ...
[2024-12-02 14:02:26,181 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66ea980a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:02:26, skipping insertion in model container
[2024-12-02 14:02:26,181 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:01:43" (2/3) ...
[2024-12-02 14:02:26,182 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66ea980a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:02:26, skipping insertion in model container
[2024-12-02 14:02:26,182 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:02:26" (3/3) ...
[2024-12-02 14:02:26,183 INFO  L128   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cyclic_scheduler.3.prop1-func-interl.c
[2024-12-02 14:02:26,193 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-12-02 14:02:26,195 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.cyclic_scheduler.3.prop1-func-interl.c that has 1 procedures, 7002 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-12-02 14:02:26,301 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 14:02:26,312 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;@3843fefb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 14:02:26,312 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-12-02 14:02:26,327 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 7002 states, 7000 states have (on average 1.4998571428571428) internal successors, (10499), 7001 states have internal predecessors, (10499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 14:02:26,346 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 326
[2024-12-02 14:02:26,346 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 14:02:26,347 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 14:02:26,348 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 14:02:26,351 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 14:02:26,352 INFO  L85        PathProgramCache]: Analyzing trace with hash 131367883, now seen corresponding path program 1 times
[2024-12-02 14:02:26,357 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 14:02:26,357 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580247879]
[2024-12-02 14:02:26,357 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 14:02:26,358 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 14:02:26,688 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 14:02:27,554 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 14:02:27,555 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 14:02:27,555 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580247879]
[2024-12-02 14:02:27,555 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580247879] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 14:02:27,556 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 14:02:27,556 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 14:02:27,557 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91481649]
[2024-12-02 14:02:27,558 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 14:02:27,561 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 14:02:27,562 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 14:02:27,578 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 14:02:27,578 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 14:02:27,596 INFO  L87              Difference]: Start difference. First operand  has 7002 states, 7000 states have (on average 1.4998571428571428) internal successors, (10499), 7001 states have internal predecessors, (10499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 4 states, 4 states have (on average 81.25) internal successors, (325), 4 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 14:02:27,984 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 14:02:27,985 INFO  L93              Difference]: Finished difference Result 13529 states and 20289 transitions.
[2024-12-02 14:02:27,985 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 14:02:27,987 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 81.25) internal successors, (325), 4 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 325
[2024-12-02 14:02:27,988 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 14:02:28,023 INFO  L225             Difference]: With dead ends: 13529
[2024-12-02 14:02:28,024 INFO  L226             Difference]: Without dead ends: 7001
[2024-12-02 14:02:28,035 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 14:02:28,038 INFO  L435           NwaCegarLoop]: 10493 mSDtfsCounter, 0 mSDsluCounter, 20980 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31473 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 14:02:28,038 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31473 Invalid, 11 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 14:02:28,064 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7001 states.
[2024-12-02 14:02:28,216 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7001 to 7001.
[2024-12-02 14:02:28,231 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7001 states, 7000 states have (on average 1.4995714285714286) internal successors, (10497), 7000 states have internal predecessors, (10497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 14:02:28,263 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7001 states to 7001 states and 10497 transitions.
[2024-12-02 14:02:28,265 INFO  L78                 Accepts]: Start accepts. Automaton has 7001 states and 10497 transitions. Word has length 325
[2024-12-02 14:02:28,266 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 14:02:28,266 INFO  L471      AbstractCegarLoop]: Abstraction has 7001 states and 10497 transitions.
[2024-12-02 14:02:28,266 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 81.25) internal successors, (325), 4 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 14:02:28,267 INFO  L276                IsEmpty]: Start isEmpty. Operand 7001 states and 10497 transitions.
[2024-12-02 14:02:28,272 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 327
[2024-12-02 14:02:28,272 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 14:02:28,272 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 14:02:28,273 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-12-02 14:02:28,273 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 14:02:28,274 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 14:02:28,274 INFO  L85        PathProgramCache]: Analyzing trace with hash -220865690, now seen corresponding path program 1 times
[2024-12-02 14:02:28,274 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 14:02:28,274 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398690377]
[2024-12-02 14:02:28,274 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 14:02:28,274 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 14:02:28,426 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 14:02:29,090 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 14:02:29,091 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 14:02:29,091 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398690377]
[2024-12-02 14:02:29,091 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398690377] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 14:02:29,091 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 14:02:29,091 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 14:02:29,091 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364162773]
[2024-12-02 14:02:29,091 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 14:02:29,093 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 14:02:29,093 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 14:02:29,093 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 14:02:29,094 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 14:02:29,094 INFO  L87              Difference]: Start difference. First operand 7001 states and 10497 transitions. Second operand  has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 14:02:29,358 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 14:02:29,358 INFO  L93              Difference]: Finished difference Result 13530 states and 20287 transitions.
[2024-12-02 14:02:29,359 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 14:02:29,359 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 326
[2024-12-02 14:02:29,360 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 14:02:29,383 INFO  L225             Difference]: With dead ends: 13530
[2024-12-02 14:02:29,383 INFO  L226             Difference]: Without dead ends: 7003
[2024-12-02 14:02:29,390 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 14:02:29,390 INFO  L435           NwaCegarLoop]: 10493 mSDtfsCounter, 0 mSDsluCounter, 20976 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31469 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 14:02:29,391 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31469 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 14:02:29,401 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7003 states.
[2024-12-02 14:02:29,509 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7003 to 7003.
[2024-12-02 14:02:29,521 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7003 states, 7002 states have (on average 1.4994287346472437) internal successors, (10499), 7002 states have internal predecessors, (10499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 14:02:29,542 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7003 states to 7003 states and 10499 transitions.
[2024-12-02 14:02:29,543 INFO  L78                 Accepts]: Start accepts. Automaton has 7003 states and 10499 transitions. Word has length 326
[2024-12-02 14:02:29,543 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 14:02:29,543 INFO  L471      AbstractCegarLoop]: Abstraction has 7003 states and 10499 transitions.
[2024-12-02 14:02:29,544 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 81.5) internal successors, (326), 4 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 14:02:29,544 INFO  L276                IsEmpty]: Start isEmpty. Operand 7003 states and 10499 transitions.
[2024-12-02 14:02:29,549 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 328
[2024-12-02 14:02:29,549 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 14:02:29,549 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 14:02:29,549 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-12-02 14:02:29,549 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 14:02:29,550 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 14:02:29,550 INFO  L85        PathProgramCache]: Analyzing trace with hash 645134340, now seen corresponding path program 1 times
[2024-12-02 14:02:29,550 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 14:02:29,550 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146698876]
[2024-12-02 14:02:29,550 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 14:02:29,550 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 14:02:29,685 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 14:02:30,183 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 14:02:30,184 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 14:02:30,184 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146698876]
[2024-12-02 14:02:30,184 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146698876] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 14:02:30,184 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 14:02:30,184 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 14:02:30,184 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699744481]
[2024-12-02 14:02:30,184 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 14:02:30,185 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 14:02:30,185 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 14:02:30,185 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 14:02:30,186 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 14:02:30,186 INFO  L87              Difference]: Start difference. First operand 7003 states and 10499 transitions. Second operand  has 4 states, 4 states have (on average 81.75) internal successors, (327), 4 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 14:02:30,422 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 14:02:30,422 INFO  L93              Difference]: Finished difference Result 13534 states and 20291 transitions.
[2024-12-02 14:02:30,422 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 14:02:30,423 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 81.75) internal successors, (327), 4 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 327
[2024-12-02 14:02:30,424 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 14:02:30,446 INFO  L225             Difference]: With dead ends: 13534
[2024-12-02 14:02:30,446 INFO  L226             Difference]: Without dead ends: 7005
[2024-12-02 14:02:30,453 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 14:02:30,453 INFO  L435           NwaCegarLoop]: 10493 mSDtfsCounter, 0 mSDsluCounter, 20970 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31463 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 14:02:30,454 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31463 Invalid, 21 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 14:02:30,464 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7005 states.
[2024-12-02 14:02:30,563 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7005 to 7005.
[2024-12-02 14:02:30,572 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7005 states, 7004 states have (on average 1.4992861222158766) internal successors, (10501), 7004 states have internal predecessors, (10501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 14:02:30,595 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7005 states to 7005 states and 10501 transitions.
[2024-12-02 14:02:30,596 INFO  L78                 Accepts]: Start accepts. Automaton has 7005 states and 10501 transitions. Word has length 327
[2024-12-02 14:02:30,596 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 14:02:30,596 INFO  L471      AbstractCegarLoop]: Abstraction has 7005 states and 10501 transitions.
[2024-12-02 14:02:30,596 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 81.75) internal successors, (327), 4 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 14:02:30,596 INFO  L276                IsEmpty]: Start isEmpty. Operand 7005 states and 10501 transitions.
[2024-12-02 14:02:30,601 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 329
[2024-12-02 14:02:30,601 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 14:02:30,601 INFO  L218           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 14:02:30,602 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-12-02 14:02:30,602 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 14:02:30,602 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 14:02:30,602 INFO  L85        PathProgramCache]: Analyzing trace with hash -566783059, now seen corresponding path program 1 times
[2024-12-02 14:02:30,602 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 14:02:30,602 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275237098]
[2024-12-02 14:02:30,603 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 14:02:30,603 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 14:02:30,730 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 14:02:31,242 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 14:02:31,242 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 14:02:31,242 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275237098]
[2024-12-02 14:02:31,242 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275237098] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 14:02:31,242 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 14:02:31,242 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 14:02:31,242 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240288934]
[2024-12-02 14:02:31,242 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 14:02:31,243 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 14:02:31,243 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 14:02:31,243 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 14:02:31,243 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 14:02:31,244 INFO  L87              Difference]: Start difference. First operand 7005 states and 10501 transitions. Second operand  has 5 states, 5 states have (on average 65.6) internal successors, (328), 5 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 14:02:31,594 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 14:02:31,594 INFO  L93              Difference]: Finished difference Result 17885 states and 26812 transitions.
[2024-12-02 14:02:31,594 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-12-02 14:02:31,594 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 65.6) internal successors, (328), 5 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 328
[2024-12-02 14:02:31,595 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 14:02:31,627 INFO  L225             Difference]: With dead ends: 17885
[2024-12-02 14:02:31,627 INFO  L226             Difference]: Without dead ends: 11354
[2024-12-02 14:02:31,636 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-12-02 14:02:31,637 INFO  L435           NwaCegarLoop]: 10489 mSDtfsCounter, 6913 mSDsluCounter, 30752 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6913 SdHoareTripleChecker+Valid, 41241 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-02 14:02:31,637 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [6913 Valid, 41241 Invalid, 30 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 14:02:31,653 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11354 states.
[2024-12-02 14:02:31,781 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11354 to 7165.
[2024-12-02 14:02:31,790 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7165 states, 7164 states have (on average 1.4993020658849805) internal successors, (10741), 7164 states have internal predecessors, (10741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 14:02:31,942 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7165 states to 7165 states and 10741 transitions.
[2024-12-02 14:02:31,942 INFO  L78                 Accepts]: Start accepts. Automaton has 7165 states and 10741 transitions. Word has length 328
[2024-12-02 14:02:31,943 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 14:02:31,943 INFO  L471      AbstractCegarLoop]: Abstraction has 7165 states and 10741 transitions.
[2024-12-02 14:02:31,943 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 65.6) internal successors, (328), 5 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 14:02:31,943 INFO  L276                IsEmpty]: Start isEmpty. Operand 7165 states and 10741 transitions.
[2024-12-02 14:02:32,138 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3592
[2024-12-02 14:02:32,139 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 14:02:32,141 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2024-12-02 14:02:32,141 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-12-02 14:02:32,141 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 14:02:32,144 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 14:02:32,146 INFO  L85        PathProgramCache]: Analyzing trace with hash -316577823, now seen corresponding path program 1 times
[2024-12-02 14:02:32,146 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 14:02:32,146 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920991620]
[2024-12-02 14:02:32,147 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 14:02:32,147 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 14:02:54,791 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 14:03:03,479 INFO  L134       CoverageAnalysis]: Checked inductivity of 86 backedges. 6 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 14:03:03,479 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 14:03:03,479 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920991620]
[2024-12-02 14:03:03,479 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920991620] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 14:03:03,479 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1479736279]
[2024-12-02 14:03:03,481 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 14:03:03,481 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 14:03:03,481 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ed2fcb-9484-4018-871a-834e69978141/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 14:03:03,483 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ed2fcb-9484-4018-871a-834e69978141/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 14:03:03,486 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ed2fcb-9484-4018-871a-834e69978141/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-12-02 14:03:08,997 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 14:03:09,081 INFO  L256         TraceCheckSpWp]: Trace formula consists of 15622 conjuncts, 80 conjuncts are in the unsatisfiable core
[2024-12-02 14:03:09,162 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 14:03:29,433 INFO  L134       CoverageAnalysis]: Checked inductivity of 86 backedges. 4 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 14:03:29,433 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 14:03:50,820 INFO  L134       CoverageAnalysis]: Checked inductivity of 86 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 14:03:50,820 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1479736279] provided 1 perfect and 1 imperfect interpolant sequences
[2024-12-02 14:03:50,821 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences.
[2024-12-02 14:03:50,821 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [6, 27] total 45
[2024-12-02 14:03:50,821 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372732153]
[2024-12-02 14:03:50,822 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 14:03:50,824 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2024-12-02 14:03:50,824 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 14:03:50,826 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2024-12-02 14:03:50,826 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=211, Invalid=1769, Unknown=0, NotChecked=0, Total=1980
[2024-12-02 14:03:50,827 INFO  L87              Difference]: Start difference. First operand 7165 states and 10741 transitions. Second operand  has 16 states, 16 states have (on average 224.4375) internal successors, (3591), 16 states have internal predecessors, (3591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 14:04:23,665 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 14:04:23,666 INFO  L93              Difference]: Finished difference Result 29008 states and 43492 transitions.
[2024-12-02 14:04:23,666 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. 
[2024-12-02 14:04:23,667 INFO  L78                 Accepts]: Start accepts. Automaton has  has 16 states, 16 states have (on average 224.4375) internal successors, (3591), 16 states have internal predecessors, (3591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3591
[2024-12-02 14:04:23,671 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 14:04:23,738 INFO  L225             Difference]: With dead ends: 29008
[2024-12-02 14:04:23,738 INFO  L226             Difference]: Without dead ends: 22477
[2024-12-02 14:04:23,755 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 7203 GetRequests, 7146 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 955 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=327, Invalid=3095, Unknown=0, NotChecked=0, Total=3422
[2024-12-02 14:04:23,756 INFO  L435           NwaCegarLoop]: 13487 mSDtfsCounter, 25568 mSDsluCounter, 159519 mSDsCounter, 0 mSdLazyCounter, 53134 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25568 SdHoareTripleChecker+Valid, 173006 SdHoareTripleChecker+Invalid, 53140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 53134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.0s IncrementalHoareTripleChecker+Time
[2024-12-02 14:04:23,756 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [25568 Valid, 173006 Invalid, 53140 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [6 Valid, 53134 Invalid, 0 Unknown, 0 Unchecked, 31.0s Time]
[2024-12-02 14:04:23,784 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 22477 states.
[2024-12-02 14:04:24,077 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 22477 to 13528.
[2024-12-02 14:04:24,093 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 13528 states, 13527 states have (on average 1.4995934057810305) internal successors, (20285), 13527 states have internal predecessors, (20285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 14:04:24,114 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 13528 states to 13528 states and 20285 transitions.
[2024-12-02 14:04:24,115 INFO  L78                 Accepts]: Start accepts. Automaton has 13528 states and 20285 transitions. Word has length 3591
[2024-12-02 14:04:24,120 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 14:04:24,120 INFO  L471      AbstractCegarLoop]: Abstraction has 13528 states and 20285 transitions.
[2024-12-02 14:04:24,121 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 16 states, 16 states have (on average 224.4375) internal successors, (3591), 16 states have internal predecessors, (3591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 14:04:24,121 INFO  L276                IsEmpty]: Start isEmpty. Operand 13528 states and 20285 transitions.
[2024-12-02 14:04:24,220 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3593
[2024-12-02 14:04:24,220 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 14:04:24,222 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2024-12-02 14:04:24,274 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ed2fcb-9484-4018-871a-834e69978141/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-12-02 14:04:24,422 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ed2fcb-9484-4018-871a-834e69978141/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 14:04:24,422 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 14:04:24,424 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 14:04:24,426 INFO  L85        PathProgramCache]: Analyzing trace with hash 340569260, now seen corresponding path program 1 times
[2024-12-02 14:04:24,426 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 14:04:24,426 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392295136]
[2024-12-02 14:04:24,427 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 14:04:24,427 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 14:04:46,648 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 14:04:55,787 INFO  L134       CoverageAnalysis]: Checked inductivity of 86 backedges. 6 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 14:04:55,787 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 14:04:55,788 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392295136]
[2024-12-02 14:04:55,788 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392295136] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 14:04:55,788 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [964340173]
[2024-12-02 14:04:55,789 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 14:04:55,790 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 14:04:55,790 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ed2fcb-9484-4018-871a-834e69978141/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 14:04:55,792 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ed2fcb-9484-4018-871a-834e69978141/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 14:04:55,796 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ed2fcb-9484-4018-871a-834e69978141/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-12-02 14:05:01,141 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 14:05:01,220 INFO  L256         TraceCheckSpWp]: Trace formula consists of 15623 conjuncts, 132 conjuncts are in the unsatisfiable core
[2024-12-02 14:05:01,295 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 14:05:16,470 INFO  L134       CoverageAnalysis]: Checked inductivity of 86 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 14:05:16,471 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 14:05:16,471 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [964340173] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 14:05:16,471 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-02 14:05:16,472 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [47] imperfect sequences [6] total 51
[2024-12-02 14:05:16,472 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203612580]
[2024-12-02 14:05:16,472 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 14:05:16,475 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 47 states
[2024-12-02 14:05:16,475 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 14:05:16,478 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants.
[2024-12-02 14:05:16,478 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=2383, Unknown=0, NotChecked=0, Total=2550
[2024-12-02 14:05:16,480 INFO  L87              Difference]: Start difference. First operand 13528 states and 20285 transitions. Second operand  has 47 states, 47 states have (on average 76.42553191489361) internal successors, (3592), 47 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 14:05:24,751 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 14:05:24,752 INFO  L93              Difference]: Finished difference Result 77659 states and 116459 transitions.
[2024-12-02 14:05:24,752 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. 
[2024-12-02 14:05:24,753 INFO  L78                 Accepts]: Start accepts. Automaton has  has 47 states, 47 states have (on average 76.42553191489361) internal successors, (3592), 47 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3592
[2024-12-02 14:05:24,758 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 14:05:24,874 INFO  L225             Difference]: With dead ends: 77659
[2024-12-02 14:05:24,875 INFO  L226             Difference]: Without dead ends: 64765
[2024-12-02 14:05:24,892 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3648 GetRequests, 3550 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2011 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=730, Invalid=9170, Unknown=0, NotChecked=0, Total=9900
[2024-12-02 14:05:24,892 INFO  L435           NwaCegarLoop]: 27270 mSDtfsCounter, 61974 mSDsluCounter, 763130 mSDsCounter, 0 mSdLazyCounter, 3961 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61974 SdHoareTripleChecker+Valid, 790400 SdHoareTripleChecker+Invalid, 3988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 3961 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time
[2024-12-02 14:05:24,893 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [61974 Valid, 790400 Invalid, 3988 Unknown, 0 Unchecked, 1.0s Time], IncrementalHoareTripleChecker [27 Valid, 3961 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time]
[2024-12-02 14:05:24,938 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 64765 states.
[2024-12-02 14:05:25,418 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 64765 to 27034.
[2024-12-02 14:05:25,436 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 27034 states, 27033 states have (on average 1.4994266267154959) internal successors, (40534), 27033 states have internal predecessors, (40534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 14:05:25,461 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 27034 states to 27034 states and 40534 transitions.
[2024-12-02 14:05:25,462 INFO  L78                 Accepts]: Start accepts. Automaton has 27034 states and 40534 transitions. Word has length 3592
[2024-12-02 14:05:25,463 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 14:05:25,463 INFO  L471      AbstractCegarLoop]: Abstraction has 27034 states and 40534 transitions.
[2024-12-02 14:05:25,464 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 47 states, 47 states have (on average 76.42553191489361) internal successors, (3592), 47 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 14:05:25,464 INFO  L276                IsEmpty]: Start isEmpty. Operand 27034 states and 40534 transitions.
[2024-12-02 14:05:25,543 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3593
[2024-12-02 14:05:25,543 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 14:05:25,544 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2024-12-02 14:05:25,586 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ed2fcb-9484-4018-871a-834e69978141/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-12-02 14:05:25,745 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ed2fcb-9484-4018-871a-834e69978141/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 14:05:25,745 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 14:05:25,746 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 14:05:25,747 INFO  L85        PathProgramCache]: Analyzing trace with hash -1493923168, now seen corresponding path program 1 times
[2024-12-02 14:05:25,747 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 14:05:25,747 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417041874]
[2024-12-02 14:05:25,747 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 14:05:25,747 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 14:05:49,446 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 14:05:57,205 INFO  L134       CoverageAnalysis]: Checked inductivity of 86 backedges. 6 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 14:05:57,206 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 14:05:57,206 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417041874]
[2024-12-02 14:05:57,206 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417041874] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 14:05:57,206 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945774855]
[2024-12-02 14:05:57,207 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 14:05:57,207 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 14:05:57,207 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ed2fcb-9484-4018-871a-834e69978141/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 14:05:57,209 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ed2fcb-9484-4018-871a-834e69978141/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 14:05:57,210 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ed2fcb-9484-4018-871a-834e69978141/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-12-02 14:06:03,030 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 14:06:03,118 INFO  L256         TraceCheckSpWp]: Trace formula consists of 15625 conjuncts, 198 conjuncts are in the unsatisfiable core
[2024-12-02 14:06:03,167 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 14:06:39,104 INFO  L134       CoverageAnalysis]: Checked inductivity of 86 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 14:06:39,104 INFO  L308         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 14:06:39,105 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1945774855] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 14:06:39,105 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-02 14:06:39,105 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [6] total 38
[2024-12-02 14:06:39,105 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203111042]
[2024-12-02 14:06:39,105 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 14:06:39,108 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 34 states
[2024-12-02 14:06:39,108 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 14:06:39,111 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants.
[2024-12-02 14:06:39,112 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=1240, Unknown=0, NotChecked=0, Total=1406
[2024-12-02 14:06:39,113 INFO  L87              Difference]: Start difference. First operand 27034 states and 40534 transitions. Second operand  has 34 states, 34 states have (on average 105.6470588235294) internal successors, (3592), 34 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 14:07:07,793 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 14:07:07,793 INFO  L93              Difference]: Finished difference Result 71801 states and 107656 transitions.
[2024-12-02 14:07:07,794 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. 
[2024-12-02 14:07:07,794 INFO  L78                 Accepts]: Start accepts. Automaton has  has 34 states, 34 states have (on average 105.6470588235294) internal successors, (3592), 34 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3592
[2024-12-02 14:07:07,796 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 14:07:07,824 INFO  L225             Difference]: With dead ends: 71801
[2024-12-02 14:07:07,824 INFO  L226             Difference]: Without dead ends: 45241
[2024-12-02 14:07:07,839 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3630 GetRequests, 3562 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1092 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=473, Invalid=4357, Unknown=0, NotChecked=0, Total=4830
[2024-12-02 14:07:07,840 INFO  L435           NwaCegarLoop]: 10579 mSDtfsCounter, 58681 mSDsluCounter, 168634 mSDsCounter, 0 mSdLazyCounter, 50191 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58681 SdHoareTripleChecker+Valid, 179213 SdHoareTripleChecker+Invalid, 50199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 50191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.9s IncrementalHoareTripleChecker+Time
[2024-12-02 14:07:07,840 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [58681 Valid, 179213 Invalid, 50199 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [8 Valid, 50191 Invalid, 0 Unknown, 0 Unchecked, 25.9s Time]
[2024-12-02 14:07:07,859 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 45241 states.
[2024-12-02 14:07:08,090 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 45241 to 31431.
[2024-12-02 14:07:08,111 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 31431 states, 31430 states have (on average 1.4993954820235444) internal successors, (47126), 31430 states have internal predecessors, (47126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 14:07:08,140 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 31431 states to 31431 states and 47126 transitions.
[2024-12-02 14:07:08,140 INFO  L78                 Accepts]: Start accepts. Automaton has 31431 states and 47126 transitions. Word has length 3592
[2024-12-02 14:07:08,141 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 14:07:08,142 INFO  L471      AbstractCegarLoop]: Abstraction has 31431 states and 47126 transitions.
[2024-12-02 14:07:08,142 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 34 states, 34 states have (on average 105.6470588235294) internal successors, (3592), 34 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 14:07:08,142 INFO  L276                IsEmpty]: Start isEmpty. Operand 31431 states and 47126 transitions.
[2024-12-02 14:07:08,215 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3593
[2024-12-02 14:07:08,215 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 14:07:08,216 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2024-12-02 14:07:08,318 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ed2fcb-9484-4018-871a-834e69978141/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2024-12-02 14:07:08,416 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ed2fcb-9484-4018-871a-834e69978141/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 14:07:08,417 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 14:07:08,418 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 14:07:08,419 INFO  L85        PathProgramCache]: Analyzing trace with hash -53998593, now seen corresponding path program 1 times
[2024-12-02 14:07:08,419 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 14:07:08,419 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138858034]
[2024-12-02 14:07:08,420 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 14:07:08,420 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 14:07:11,817 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 14:07:19,021 INFO  L134       CoverageAnalysis]: Checked inductivity of 86 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 14:07:19,021 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 14:07:19,022 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138858034]
[2024-12-02 14:07:19,022 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138858034] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 14:07:19,022 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 14:07:19,022 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 14:07:19,022 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469915303]
[2024-12-02 14:07:19,022 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 14:07:19,025 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 14:07:19,025 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 14:07:19,026 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 14:07:19,026 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 14:07:19,027 INFO  L87              Difference]: Start difference. First operand 31431 states and 47126 transitions. Second operand  has 5 states, 5 states have (on average 718.4) internal successors, (3592), 5 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 14:07:19,264 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 14:07:19,264 INFO  L93              Difference]: Finished difference Result 80104 states and 120103 transitions.
[2024-12-02 14:07:19,265 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-12-02 14:07:19,265 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 718.4) internal successors, (3592), 5 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3592
[2024-12-02 14:07:19,266 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 14:07:19,294 INFO  L225             Difference]: With dead ends: 80104
[2024-12-02 14:07:19,295 INFO  L226             Difference]: Without dead ends: 49147
[2024-12-02 14:07:19,313 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-12-02 14:07:19,314 INFO  L435           NwaCegarLoop]: 10489 mSDtfsCounter, 6826 mSDsluCounter, 30753 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6826 SdHoareTripleChecker+Valid, 41242 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 14:07:19,314 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [6826 Valid, 41242 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 14:07:19,340 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 49147 states.
[2024-12-02 14:07:19,718 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 49147 to 31743.
[2024-12-02 14:07:19,740 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 31743 states, 31742 states have (on average 1.4992754079768131) internal successors, (47590), 31742 states have internal predecessors, (47590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 14:07:19,786 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 31743 states to 31743 states and 47590 transitions.
[2024-12-02 14:07:19,786 INFO  L78                 Accepts]: Start accepts. Automaton has 31743 states and 47590 transitions. Word has length 3592
[2024-12-02 14:07:19,787 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 14:07:19,787 INFO  L471      AbstractCegarLoop]: Abstraction has 31743 states and 47590 transitions.
[2024-12-02 14:07:19,788 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 718.4) internal successors, (3592), 5 states have internal predecessors, (3592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 14:07:19,788 INFO  L276                IsEmpty]: Start isEmpty. Operand 31743 states and 47590 transitions.
[2024-12-02 14:07:19,941 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3594
[2024-12-02 14:07:19,941 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 14:07:19,942 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 14:07:19,942 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-12-02 14:07:19,943 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 14:07:19,944 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 14:07:19,944 INFO  L85        PathProgramCache]: Analyzing trace with hash -2126757962, now seen corresponding path program 1 times
[2024-12-02 14:07:19,944 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 14:07:19,945 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779800318]
[2024-12-02 14:07:19,945 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 14:07:19,945 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 14:07:23,090 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 14:07:30,551 INFO  L134       CoverageAnalysis]: Checked inductivity of 86 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 14:07:30,551 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 14:07:30,551 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779800318]
[2024-12-02 14:07:30,551 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779800318] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 14:07:30,551 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 14:07:30,551 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-12-02 14:07:30,551 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670654659]
[2024-12-02 14:07:30,551 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 14:07:30,552 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-12-02 14:07:30,553 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 14:07:30,554 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-12-02 14:07:30,554 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 14:07:30,554 INFO  L87              Difference]: Start difference. First operand 31743 states and 47590 transitions. Second operand  has 4 states, 4 states have (on average 898.25) internal successors, (3593), 4 states have internal predecessors, (3593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 14:07:30,707 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 14:07:30,708 INFO  L93              Difference]: Finished difference Result 62736 states and 94060 transitions.
[2024-12-02 14:07:30,708 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-12-02 14:07:30,709 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 898.25) internal successors, (3593), 4 states have internal predecessors, (3593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3593
[2024-12-02 14:07:30,709 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 14:07:30,726 INFO  L225             Difference]: With dead ends: 62736
[2024-12-02 14:07:30,726 INFO  L226             Difference]: Without dead ends: 31779
[2024-12-02 14:07:30,744 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-12-02 14:07:30,744 INFO  L435           NwaCegarLoop]: 10493 mSDtfsCounter, 4 mSDsluCounter, 20970 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 31463 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 14:07:30,744 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 31463 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 14:07:30,761 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 31779 states.
[2024-12-02 14:07:31,023 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 31779 to 31779.
[2024-12-02 14:07:31,042 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 31779 states, 31778 states have (on average 1.4990874189690981) internal successors, (47638), 31778 states have internal predecessors, (47638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 14:07:31,072 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 31779 states to 31779 states and 47638 transitions.
[2024-12-02 14:07:31,072 INFO  L78                 Accepts]: Start accepts. Automaton has 31779 states and 47638 transitions. Word has length 3593
[2024-12-02 14:07:31,073 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 14:07:31,073 INFO  L471      AbstractCegarLoop]: Abstraction has 31779 states and 47638 transitions.
[2024-12-02 14:07:31,073 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 898.25) internal successors, (3593), 4 states have internal predecessors, (3593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 14:07:31,073 INFO  L276                IsEmpty]: Start isEmpty. Operand 31779 states and 47638 transitions.
[2024-12-02 14:07:31,139 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3594
[2024-12-02 14:07:31,139 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 14:07:31,140 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2024-12-02 14:07:31,141 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-12-02 14:07:31,141 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 14:07:31,141 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 14:07:31,142 INFO  L85        PathProgramCache]: Analyzing trace with hash -596160904, now seen corresponding path program 1 times
[2024-12-02 14:07:31,142 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 14:07:31,142 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609374860]
[2024-12-02 14:07:31,143 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 14:07:31,143 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 14:07:56,229 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 14:08:04,226 INFO  L134       CoverageAnalysis]: Checked inductivity of 86 backedges. 6 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 14:08:04,227 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 14:08:04,227 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609374860]
[2024-12-02 14:08:04,227 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609374860] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 14:08:04,227 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [239291602]
[2024-12-02 14:08:04,227 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 14:08:04,227 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 14:08:04,227 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ed2fcb-9484-4018-871a-834e69978141/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 14:08:04,229 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ed2fcb-9484-4018-871a-834e69978141/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 14:08:04,230 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ed2fcb-9484-4018-871a-834e69978141/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-12-02 14:08:13,106 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 14:08:13,186 INFO  L256         TraceCheckSpWp]: Trace formula consists of 15628 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-12-02 14:08:13,219 INFO  L279         TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 14:08:19,258 INFO  L134       CoverageAnalysis]: Checked inductivity of 86 backedges. 6 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 14:08:19,258 INFO  L312         TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 14:08:33,475 INFO  L134       CoverageAnalysis]: Checked inductivity of 86 backedges. 6 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 14:08:33,476 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [239291602] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 14:08:33,476 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 14:08:33,476 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10
[2024-12-02 14:08:33,476 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739560347]
[2024-12-02 14:08:33,476 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 14:08:33,483 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-12-02 14:08:33,483 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 14:08:33,485 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-12-02 14:08:33,485 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90
[2024-12-02 14:08:33,486 INFO  L87              Difference]: Start difference. First operand 31779 states and 47638 transitions. Second operand  has 10 states, 10 states have (on average 391.2) internal successors, (3912), 10 states have internal predecessors, (3912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 14:08:38,028 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 14:08:38,028 INFO  L93              Difference]: Finished difference Result 141599 states and 212275 transitions.
[2024-12-02 14:08:38,028 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-12-02 14:08:38,029 INFO  L78                 Accepts]: Start accepts. Automaton has  has 10 states, 10 states have (on average 391.2) internal successors, (3912), 10 states have internal predecessors, (3912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3593
[2024-12-02 14:08:38,031 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 14:08:38,064 INFO  L225             Difference]: With dead ends: 141599
[2024-12-02 14:08:38,064 INFO  L226             Difference]: Without dead ends: 58952
[2024-12-02 14:08:38,098 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 7192 GetRequests, 7183 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110
[2024-12-02 14:08:38,099 INFO  L435           NwaCegarLoop]: 10142 mSDtfsCounter, 27780 mSDsluCounter, 57046 mSDsCounter, 0 mSdLazyCounter, 5178 mSolverCounterSat, 801 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27780 SdHoareTripleChecker+Valid, 67188 SdHoareTripleChecker+Invalid, 5979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 801 IncrementalHoareTripleChecker+Valid, 5178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time
[2024-12-02 14:08:38,099 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [27780 Valid, 67188 Invalid, 5979 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [801 Valid, 5178 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time]
[2024-12-02 14:08:38,129 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 58952 states.
[2024-12-02 14:08:38,508 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 58952 to 31779.
[2024-12-02 14:08:38,528 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 31779 states, 31778 states have (on average 1.4990559506576877) internal successors, (47637), 31778 states have internal predecessors, (47637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 14:08:38,555 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 31779 states to 31779 states and 47637 transitions.
[2024-12-02 14:08:38,555 INFO  L78                 Accepts]: Start accepts. Automaton has 31779 states and 47637 transitions. Word has length 3593
[2024-12-02 14:08:38,556 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 14:08:38,556 INFO  L471      AbstractCegarLoop]: Abstraction has 31779 states and 47637 transitions.
[2024-12-02 14:08:38,556 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 10 states have (on average 391.2) internal successors, (3912), 10 states have internal predecessors, (3912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-12-02 14:08:38,556 INFO  L276                IsEmpty]: Start isEmpty. Operand 31779 states and 47637 transitions.
[2024-12-02 14:08:38,618 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3595
[2024-12-02 14:08:38,618 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 14:08:38,619 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2024-12-02 14:08:38,661 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ed2fcb-9484-4018-871a-834e69978141/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2024-12-02 14:08:38,819 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9ed2fcb-9484-4018-871a-834e69978141/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 14:08:38,819 INFO  L396      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 14:08:38,820 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 14:08:38,821 INFO  L85        PathProgramCache]: Analyzing trace with hash 330157025, now seen corresponding path program 1 times
[2024-12-02 14:08:38,821 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 14:08:38,821 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912059685]
[2024-12-02 14:08:38,822 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 14:08:38,822 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 14:09:03,248 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 14:09:10,736 INFO  L134       CoverageAnalysis]: Checked inductivity of 87 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 14:09:10,737 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 14:09:10,737 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912059685]
[2024-12-02 14:09:10,737 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912059685] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 14:09:10,737 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 14:09:10,737 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-12-02 14:09:10,737 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823275342]
[2024-12-02 14:09:10,737 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 14:09:10,739 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 14:09:10,739 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 14:09:10,740 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 14:09:10,740 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-12-02 14:09:10,741 INFO  L87              Difference]: Start difference. First operand 31779 states and 47637 transitions. Second operand  has 6 states, 6 states have (on average 599.0) internal successors, (3594), 6 states have internal predecessors, (3594), 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)
[2024-12-02 14:09:16,128 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 14:09:16,128 INFO  L93              Difference]: Finished difference Result 80242 states and 120289 transitions.
[2024-12-02 14:09:16,129 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-12-02 14:09:16,129 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 599.0) internal successors, (3594), 6 states have internal predecessors, (3594), 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 3594
[2024-12-02 14:09:16,130 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 14:09:16,160 INFO  L225             Difference]: With dead ends: 80242
[2024-12-02 14:09:16,160 INFO  L226             Difference]: Without dead ends: 49211
[2024-12-02 14:09:16,176 INFO  L434           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
[2024-12-02 14:09:16,177 INFO  L435           NwaCegarLoop]: 9029 mSDtfsCounter, 6856 mSDsluCounter, 34678 mSDsCounter, 0 mSdLazyCounter, 8407 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6856 SdHoareTripleChecker+Valid, 43707 SdHoareTripleChecker+Invalid, 8446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 8407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time
[2024-12-02 14:09:16,177 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [6856 Valid, 43707 Invalid, 8446 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [39 Valid, 8407 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time]
[2024-12-02 14:09:16,205 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 49211 states.
[2024-12-02 14:09:16,545 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 49211 to 31779.
[2024-12-02 14:09:16,567 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 31779 states, 31778 states have (on average 1.4990244823462773) internal successors, (47636), 31778 states have internal predecessors, (47636), 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)
[2024-12-02 14:09:16,609 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 31779 states to 31779 states and 47636 transitions.
[2024-12-02 14:09:16,609 INFO  L78                 Accepts]: Start accepts. Automaton has 31779 states and 47636 transitions. Word has length 3594
[2024-12-02 14:09:16,610 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 14:09:16,610 INFO  L471      AbstractCegarLoop]: Abstraction has 31779 states and 47636 transitions.
[2024-12-02 14:09:16,610 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 599.0) internal successors, (3594), 6 states have internal predecessors, (3594), 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)
[2024-12-02 14:09:16,610 INFO  L276                IsEmpty]: Start isEmpty. Operand 31779 states and 47636 transitions.
[2024-12-02 14:09:16,731 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3596
[2024-12-02 14:09:16,731 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 14:09:16,732 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 14:09:16,732 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-12-02 14:09:16,732 INFO  L396      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 14:09:16,733 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 14:09:16,734 INFO  L85        PathProgramCache]: Analyzing trace with hash 1502361171, now seen corresponding path program 1 times
[2024-12-02 14:09:16,734 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 14:09:16,734 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79979334]
[2024-12-02 14:09:16,734 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 14:09:16,735 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 14:09:42,480 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 14:09:49,851 INFO  L134       CoverageAnalysis]: Checked inductivity of 87 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 14:09:49,851 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 14:09:49,851 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79979334]
[2024-12-02 14:09:49,851 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79979334] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 14:09:49,851 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 14:09:49,851 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-12-02 14:09:49,851 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945653073]
[2024-12-02 14:09:49,851 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 14:09:49,854 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 14:09:49,854 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 14:09:49,855 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 14:09:49,855 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-12-02 14:09:49,856 INFO  L87              Difference]: Start difference. First operand 31779 states and 47636 transitions. Second operand  has 6 states, 6 states have (on average 599.1666666666666) internal successors, (3595), 6 states have internal predecessors, (3595), 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)
[2024-12-02 14:09:54,825 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 14:09:54,825 INFO  L93              Difference]: Finished difference Result 97416 states and 146018 transitions.
[2024-12-02 14:09:54,825 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-12-02 14:09:54,826 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 599.1666666666666) internal successors, (3595), 6 states have internal predecessors, (3595), 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 3595
[2024-12-02 14:09:54,826 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 14:09:54,856 INFO  L225             Difference]: With dead ends: 97416
[2024-12-02 14:09:54,856 INFO  L226             Difference]: Without dead ends: 66417
[2024-12-02 14:09:54,870 INFO  L434           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
[2024-12-02 14:09:54,870 INFO  L435           NwaCegarLoop]: 9045 mSDtfsCounter, 9965 mSDsluCounter, 35658 mSDsCounter, 0 mSdLazyCounter, 7607 mSolverCounterSat, 310 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9965 SdHoareTripleChecker+Valid, 44703 SdHoareTripleChecker+Invalid, 7917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 310 IncrementalHoareTripleChecker+Valid, 7607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time
[2024-12-02 14:09:54,870 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [9965 Valid, 44703 Invalid, 7917 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [310 Valid, 7607 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time]
[2024-12-02 14:09:54,897 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 66417 states.
[2024-12-02 14:09:55,150 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 66417 to 33017.
[2024-12-02 14:09:55,170 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 33017 states, 33016 states have (on average 1.4986673128180277) internal successors, (49480), 33016 states have internal predecessors, (49480), 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)
[2024-12-02 14:09:55,196 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 33017 states to 33017 states and 49480 transitions.
[2024-12-02 14:09:55,197 INFO  L78                 Accepts]: Start accepts. Automaton has 33017 states and 49480 transitions. Word has length 3595
[2024-12-02 14:09:55,197 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 14:09:55,197 INFO  L471      AbstractCegarLoop]: Abstraction has 33017 states and 49480 transitions.
[2024-12-02 14:09:55,197 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 599.1666666666666) internal successors, (3595), 6 states have internal predecessors, (3595), 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)
[2024-12-02 14:09:55,198 INFO  L276                IsEmpty]: Start isEmpty. Operand 33017 states and 49480 transitions.
[2024-12-02 14:09:55,302 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3597
[2024-12-02 14:09:55,303 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 14:09:55,304 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 14:09:55,304 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2024-12-02 14:09:55,304 INFO  L396      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 14:09:55,305 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 14:09:55,306 INFO  L85        PathProgramCache]: Analyzing trace with hash -2072322327, now seen corresponding path program 1 times
[2024-12-02 14:09:55,306 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 14:09:55,306 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945566965]
[2024-12-02 14:09:55,307 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 14:09:55,307 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 14:10:14,932 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 14:10:21,413 INFO  L134       CoverageAnalysis]: Checked inductivity of 87 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 14:10:21,413 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 14:10:21,413 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945566965]
[2024-12-02 14:10:21,413 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945566965] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 14:10:21,413 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 14:10:21,413 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-12-02 14:10:21,413 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679185677]
[2024-12-02 14:10:21,413 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 14:10:21,415 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 14:10:21,415 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 14:10:21,416 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 14:10:21,416 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-12-02 14:10:21,416 INFO  L87              Difference]: Start difference. First operand 33017 states and 49480 transitions. Second operand  has 6 states, 6 states have (on average 599.3333333333334) internal successors, (3596), 6 states have internal predecessors, (3596), 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)
[2024-12-02 14:10:24,342 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 14:10:24,342 INFO  L93              Difference]: Finished difference Result 99264 states and 148758 transitions.
[2024-12-02 14:10:24,343 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-12-02 14:10:24,343 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 599.3333333333334) internal successors, (3596), 6 states have internal predecessors, (3596), 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 3596
[2024-12-02 14:10:24,344 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 14:10:24,372 INFO  L225             Difference]: With dead ends: 99264
[2024-12-02 14:10:24,372 INFO  L226             Difference]: Without dead ends: 67325
[2024-12-02 14:10:24,383 INFO  L434           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
[2024-12-02 14:10:24,384 INFO  L435           NwaCegarLoop]: 9114 mSDtfsCounter, 15486 mSDsluCounter, 27794 mSDsCounter, 0 mSdLazyCounter, 4470 mSolverCounterSat, 274 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15486 SdHoareTripleChecker+Valid, 36908 SdHoareTripleChecker+Invalid, 4744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 274 IncrementalHoareTripleChecker+Valid, 4470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time
[2024-12-02 14:10:24,384 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [15486 Valid, 36908 Invalid, 4744 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [274 Valid, 4470 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time]
[2024-12-02 14:10:24,411 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 67325 states.
[2024-12-02 14:10:24,660 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 67325 to 33807.
[2024-12-02 14:10:24,680 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 33807 states, 33806 states have (on average 1.4979885227474412) internal successors, (50641), 33806 states have internal predecessors, (50641), 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)
[2024-12-02 14:10:24,706 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 33807 states to 33807 states and 50641 transitions.
[2024-12-02 14:10:24,707 INFO  L78                 Accepts]: Start accepts. Automaton has 33807 states and 50641 transitions. Word has length 3596
[2024-12-02 14:10:24,707 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 14:10:24,707 INFO  L471      AbstractCegarLoop]: Abstraction has 33807 states and 50641 transitions.
[2024-12-02 14:10:24,708 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 599.3333333333334) internal successors, (3596), 6 states have internal predecessors, (3596), 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)
[2024-12-02 14:10:24,708 INFO  L276                IsEmpty]: Start isEmpty. Operand 33807 states and 50641 transitions.
[2024-12-02 14:10:24,771 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3598
[2024-12-02 14:10:24,771 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 14:10:24,772 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2024-12-02 14:10:24,773 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2024-12-02 14:10:24,773 INFO  L396      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 14:10:24,774 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 14:10:24,775 INFO  L85        PathProgramCache]: Analyzing trace with hash 1466319870, now seen corresponding path program 1 times
[2024-12-02 14:10:24,775 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 14:10:24,775 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831989308]
[2024-12-02 14:10:24,775 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 14:10:24,775 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 14:10:51,208 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 14:10:59,198 INFO  L134       CoverageAnalysis]: Checked inductivity of 87 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 14:10:59,198 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 14:10:59,198 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831989308]
[2024-12-02 14:10:59,198 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831989308] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 14:10:59,199 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 14:10:59,199 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-12-02 14:10:59,199 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586476045]
[2024-12-02 14:10:59,199 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 14:10:59,200 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 14:10:59,200 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 14:10:59,202 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 14:10:59,202 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2024-12-02 14:10:59,202 INFO  L87              Difference]: Start difference. First operand 33807 states and 50641 transitions. Second operand  has 6 states, 6 states have (on average 599.5) internal successors, (3597), 6 states have internal predecessors, (3597), 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)
[2024-12-02 14:11:04,898 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 14:11:04,898 INFO  L93              Difference]: Finished difference Result 84172 states and 126126 transitions.
[2024-12-02 14:11:04,898 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-12-02 14:11:04,899 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 599.5) internal successors, (3597), 6 states have internal predecessors, (3597), 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 3597
[2024-12-02 14:11:04,899 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 14:11:04,926 INFO  L225             Difference]: With dead ends: 84172
[2024-12-02 14:11:04,926 INFO  L226             Difference]: Without dead ends: 51747
[2024-12-02 14:11:04,943 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2024-12-02 14:11:04,944 INFO  L435           NwaCegarLoop]: 11826 mSDtfsCounter, 15591 mSDsluCounter, 23844 mSDsCounter, 0 mSdLazyCounter, 11813 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15591 SdHoareTripleChecker+Valid, 35670 SdHoareTripleChecker+Invalid, 11814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time
[2024-12-02 14:11:04,944 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [15591 Valid, 35670 Invalid, 11814 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 11813 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time]
[2024-12-02 14:11:04,967 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 51747 states.
[2024-12-02 14:11:05,199 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 51747 to 33673.
[2024-12-02 14:11:05,219 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 33673 states, 33672 states have (on average 1.498039914468995) internal successors, (50442), 33672 states have internal predecessors, (50442), 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)
[2024-12-02 14:11:05,335 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 33673 states to 33673 states and 50442 transitions.
[2024-12-02 14:11:05,335 INFO  L78                 Accepts]: Start accepts. Automaton has 33673 states and 50442 transitions. Word has length 3597
[2024-12-02 14:11:05,335 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 14:11:05,335 INFO  L471      AbstractCegarLoop]: Abstraction has 33673 states and 50442 transitions.
[2024-12-02 14:11:05,336 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 599.5) internal successors, (3597), 6 states have internal predecessors, (3597), 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)
[2024-12-02 14:11:05,336 INFO  L276                IsEmpty]: Start isEmpty. Operand 33673 states and 50442 transitions.
[2024-12-02 14:11:05,396 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3598
[2024-12-02 14:11:05,396 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 14:11:05,397 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2024-12-02 14:11:05,397 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2024-12-02 14:11:05,397 INFO  L396      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 14:11:05,399 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 14:11:05,400 INFO  L85        PathProgramCache]: Analyzing trace with hash -1685214599, now seen corresponding path program 1 times
[2024-12-02 14:11:05,400 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 14:11:05,400 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623273619]
[2024-12-02 14:11:05,401 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 14:11:05,401 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 14:11:30,254 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 14:11:37,228 INFO  L134       CoverageAnalysis]: Checked inductivity of 87 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 14:11:37,228 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 14:11:37,228 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623273619]
[2024-12-02 14:11:37,228 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623273619] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 14:11:37,228 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 14:11:37,229 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-12-02 14:11:37,229 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203615982]
[2024-12-02 14:11:37,229 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 14:11:37,232 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 14:11:37,232 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 14:11:37,233 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 14:11:37,233 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-12-02 14:11:37,234 INFO  L87              Difference]: Start difference. First operand 33673 states and 50442 transitions. Second operand  has 6 states, 6 states have (on average 599.5) internal successors, (3597), 6 states have internal predecessors, (3597), 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)
[2024-12-02 14:11:42,180 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 14:11:42,180 INFO  L93              Difference]: Finished difference Result 83579 states and 125241 transitions.
[2024-12-02 14:11:42,180 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-12-02 14:11:42,181 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 599.5) internal successors, (3597), 6 states have internal predecessors, (3597), 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 3597
[2024-12-02 14:11:42,181 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 14:11:42,205 INFO  L225             Difference]: With dead ends: 83579
[2024-12-02 14:11:42,206 INFO  L226             Difference]: Without dead ends: 51288
[2024-12-02 14:11:42,217 INFO  L434           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
[2024-12-02 14:11:42,217 INFO  L435           NwaCegarLoop]: 9014 mSDtfsCounter, 6883 mSDsluCounter, 31646 mSDsCounter, 0 mSdLazyCounter, 7416 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6883 SdHoareTripleChecker+Valid, 40660 SdHoareTripleChecker+Invalid, 7455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 7416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time
[2024-12-02 14:11:42,217 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [6883 Valid, 40660 Invalid, 7455 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [39 Valid, 7416 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time]
[2024-12-02 14:11:42,238 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 51288 states.
[2024-12-02 14:11:42,452 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 51288 to 33686.
[2024-12-02 14:11:42,473 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 33686 states, 33685 states have (on average 1.4979664539112365) internal successors, (50459), 33685 states have internal predecessors, (50459), 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)
[2024-12-02 14:11:42,499 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 33686 states to 33686 states and 50459 transitions.
[2024-12-02 14:11:42,499 INFO  L78                 Accepts]: Start accepts. Automaton has 33686 states and 50459 transitions. Word has length 3597
[2024-12-02 14:11:42,500 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 14:11:42,500 INFO  L471      AbstractCegarLoop]: Abstraction has 33686 states and 50459 transitions.
[2024-12-02 14:11:42,500 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 599.5) internal successors, (3597), 6 states have internal predecessors, (3597), 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)
[2024-12-02 14:11:42,500 INFO  L276                IsEmpty]: Start isEmpty. Operand 33686 states and 50459 transitions.
[2024-12-02 14:11:42,561 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3599
[2024-12-02 14:11:42,562 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 14:11:42,562 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2024-12-02 14:11:42,563 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2024-12-02 14:11:42,563 INFO  L396      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 14:11:42,564 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 14:11:42,564 INFO  L85        PathProgramCache]: Analyzing trace with hash -1448104032, now seen corresponding path program 1 times
[2024-12-02 14:11:42,564 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 14:11:42,564 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101755484]
[2024-12-02 14:11:42,565 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 14:11:42,565 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 14:12:04,469 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 14:12:10,301 INFO  L134       CoverageAnalysis]: Checked inductivity of 87 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 14:12:10,301 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 14:12:10,301 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101755484]
[2024-12-02 14:12:10,301 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101755484] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 14:12:10,301 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 14:12:10,302 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-12-02 14:12:10,302 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278786972]
[2024-12-02 14:12:10,302 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 14:12:10,303 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 14:12:10,303 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 14:12:10,305 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 14:12:10,305 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-12-02 14:12:10,305 INFO  L87              Difference]: Start difference. First operand 33686 states and 50459 transitions. Second operand  has 6 states, 6 states have (on average 599.6666666666666) internal successors, (3598), 6 states have internal predecessors, (3598), 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)
[2024-12-02 14:12:14,693 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 14:12:14,693 INFO  L93              Difference]: Finished difference Result 87032 states and 130368 transitions.
[2024-12-02 14:12:14,693 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-12-02 14:12:14,694 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 599.6666666666666) internal successors, (3598), 6 states have internal predecessors, (3598), 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 3598
[2024-12-02 14:12:14,694 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 14:12:14,722 INFO  L225             Difference]: With dead ends: 87032
[2024-12-02 14:12:14,722 INFO  L226             Difference]: Without dead ends: 54741
[2024-12-02 14:12:14,741 INFO  L434           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
[2024-12-02 14:12:14,741 INFO  L435           NwaCegarLoop]: 9039 mSDtfsCounter, 5844 mSDsluCounter, 31825 mSDsCounter, 0 mSdLazyCounter, 7364 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5844 SdHoareTripleChecker+Valid, 40864 SdHoareTripleChecker+Invalid, 7407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 7364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time
[2024-12-02 14:12:14,741 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [5844 Valid, 40864 Invalid, 7407 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [43 Valid, 7364 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time]
[2024-12-02 14:12:14,765 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 54741 states.
[2024-12-02 14:12:15,011 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 54741 to 36621.
[2024-12-02 14:12:15,032 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 36621 states, 36620 states have (on average 1.4967777170944838) internal successors, (54812), 36620 states have internal predecessors, (54812), 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)
[2024-12-02 14:12:15,061 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 36621 states to 36621 states and 54812 transitions.
[2024-12-02 14:12:15,061 INFO  L78                 Accepts]: Start accepts. Automaton has 36621 states and 54812 transitions. Word has length 3598
[2024-12-02 14:12:15,062 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 14:12:15,062 INFO  L471      AbstractCegarLoop]: Abstraction has 36621 states and 54812 transitions.
[2024-12-02 14:12:15,062 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 599.6666666666666) internal successors, (3598), 6 states have internal predecessors, (3598), 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)
[2024-12-02 14:12:15,063 INFO  L276                IsEmpty]: Start isEmpty. Operand 36621 states and 54812 transitions.
[2024-12-02 14:12:15,125 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3600
[2024-12-02 14:12:15,125 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 14:12:15,126 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2024-12-02 14:12:15,126 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2024-12-02 14:12:15,126 INFO  L396      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 14:12:15,127 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 14:12:15,128 INFO  L85        PathProgramCache]: Analyzing trace with hash -340373421, now seen corresponding path program 1 times
[2024-12-02 14:12:15,128 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 14:12:15,128 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263195741]
[2024-12-02 14:12:15,129 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 14:12:15,129 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 14:12:40,909 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 14:12:47,342 INFO  L134       CoverageAnalysis]: Checked inductivity of 87 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 14:12:47,343 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 14:12:47,343 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263195741]
[2024-12-02 14:12:47,343 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263195741] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 14:12:47,343 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 14:12:47,343 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-12-02 14:12:47,343 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46760380]
[2024-12-02 14:12:47,343 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 14:12:47,346 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 14:12:47,346 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 14:12:47,347 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 14:12:47,347 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-12-02 14:12:47,348 INFO  L87              Difference]: Start difference. First operand 36621 states and 54812 transitions. Second operand  has 6 states, 6 states have (on average 599.8333333333334) internal successors, (3599), 6 states have internal predecessors, (3599), 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)
[2024-12-02 14:12:49,869 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 14:12:49,869 INFO  L93              Difference]: Finished difference Result 94980 states and 142168 transitions.
[2024-12-02 14:12:49,869 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-12-02 14:12:49,870 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 599.8333333333334) internal successors, (3599), 6 states have internal predecessors, (3599), 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 3599
[2024-12-02 14:12:49,871 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 14:12:49,906 INFO  L225             Difference]: With dead ends: 94980
[2024-12-02 14:12:49,906 INFO  L226             Difference]: Without dead ends: 60667
[2024-12-02 14:12:49,928 INFO  L434           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
[2024-12-02 14:12:49,928 INFO  L435           NwaCegarLoop]: 9038 mSDtfsCounter, 11462 mSDsluCounter, 23967 mSDsCounter, 0 mSdLazyCounter, 4836 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11462 SdHoareTripleChecker+Valid, 33005 SdHoareTripleChecker+Invalid, 4880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 4836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time
[2024-12-02 14:12:49,928 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [11462 Valid, 33005 Invalid, 4880 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [44 Valid, 4836 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time]
[2024-12-02 14:12:49,956 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 60667 states.
[2024-12-02 14:12:50,215 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 60667 to 42531.
[2024-12-02 14:12:50,241 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 42531 states, 42530 states have (on average 1.494897719256995) internal successors, (63578), 42530 states have internal predecessors, (63578), 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)
[2024-12-02 14:12:50,275 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 42531 states to 42531 states and 63578 transitions.
[2024-12-02 14:12:50,275 INFO  L78                 Accepts]: Start accepts. Automaton has 42531 states and 63578 transitions. Word has length 3599
[2024-12-02 14:12:50,275 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 14:12:50,275 INFO  L471      AbstractCegarLoop]: Abstraction has 42531 states and 63578 transitions.
[2024-12-02 14:12:50,276 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 599.8333333333334) internal successors, (3599), 6 states have internal predecessors, (3599), 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)
[2024-12-02 14:12:50,276 INFO  L276                IsEmpty]: Start isEmpty. Operand 42531 states and 63578 transitions.
[2024-12-02 14:12:50,341 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3601
[2024-12-02 14:12:50,341 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 14:12:50,342 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2024-12-02 14:12:50,342 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2024-12-02 14:12:50,342 INFO  L396      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 14:12:50,343 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 14:12:50,344 INFO  L85        PathProgramCache]: Analyzing trace with hash 332955954, now seen corresponding path program 1 times
[2024-12-02 14:12:50,344 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 14:12:50,344 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315914788]
[2024-12-02 14:12:50,344 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 14:12:50,344 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 14:13:15,001 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 14:13:23,211 INFO  L134       CoverageAnalysis]: Checked inductivity of 87 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 14:13:23,211 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 14:13:23,211 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315914788]
[2024-12-02 14:13:23,211 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315914788] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 14:13:23,211 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 14:13:23,211 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-12-02 14:13:23,211 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739467748]
[2024-12-02 14:13:23,211 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 14:13:23,213 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 14:13:23,213 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 14:13:23,214 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 14:13:23,214 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2024-12-02 14:13:23,215 INFO  L87              Difference]: Start difference. First operand 42531 states and 63578 transitions. Second operand  has 6 states, 6 states have (on average 600.0) internal successors, (3600), 6 states have internal predecessors, (3600), 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)
[2024-12-02 14:13:28,830 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 14:13:28,830 INFO  L93              Difference]: Finished difference Result 98970 states and 148107 transitions.
[2024-12-02 14:13:28,830 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-12-02 14:13:28,831 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 600.0) internal successors, (3600), 6 states have internal predecessors, (3600), 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 3600
[2024-12-02 14:13:28,831 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 14:13:28,861 INFO  L225             Difference]: With dead ends: 98970
[2024-12-02 14:13:28,861 INFO  L226             Difference]: Without dead ends: 60577
[2024-12-02 14:13:28,880 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2024-12-02 14:13:28,881 INFO  L435           NwaCegarLoop]: 11845 mSDtfsCounter, 15860 mSDsluCounter, 23974 mSDsCounter, 0 mSdLazyCounter, 11939 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15860 SdHoareTripleChecker+Valid, 35819 SdHoareTripleChecker+Invalid, 11939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11939 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time
[2024-12-02 14:13:28,881 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [15860 Valid, 35819 Invalid, 11939 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 11939 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time]
[2024-12-02 14:13:28,906 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 60577 states.
[2024-12-02 14:13:29,169 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 60577 to 42534.
[2024-12-02 14:13:29,194 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 42534 states, 42533 states have (on average 1.4948628124044858) internal successors, (63581), 42533 states have internal predecessors, (63581), 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)
[2024-12-02 14:13:29,228 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 42534 states to 42534 states and 63581 transitions.
[2024-12-02 14:13:29,228 INFO  L78                 Accepts]: Start accepts. Automaton has 42534 states and 63581 transitions. Word has length 3600
[2024-12-02 14:13:29,228 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 14:13:29,229 INFO  L471      AbstractCegarLoop]: Abstraction has 42534 states and 63581 transitions.
[2024-12-02 14:13:29,229 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 600.0) internal successors, (3600), 6 states have internal predecessors, (3600), 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)
[2024-12-02 14:13:29,229 INFO  L276                IsEmpty]: Start isEmpty. Operand 42534 states and 63581 transitions.
[2024-12-02 14:13:29,294 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3601
[2024-12-02 14:13:29,295 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 14:13:29,295 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 14:13:29,295 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2024-12-02 14:13:29,296 INFO  L396      AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 14:13:29,296 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 14:13:29,297 INFO  L85        PathProgramCache]: Analyzing trace with hash 1535454605, now seen corresponding path program 1 times
[2024-12-02 14:13:29,297 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 14:13:29,297 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448201403]
[2024-12-02 14:13:29,298 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 14:13:29,298 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 14:13:53,979 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 14:14:00,258 INFO  L134       CoverageAnalysis]: Checked inductivity of 87 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-12-02 14:14:00,258 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 14:14:00,258 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448201403]
[2024-12-02 14:14:00,258 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448201403] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 14:14:00,258 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 14:14:00,259 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-12-02 14:14:00,259 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466050657]
[2024-12-02 14:14:00,259 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 14:14:00,261 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-12-02 14:14:00,262 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 14:14:00,263 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-12-02 14:14:00,263 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-12-02 14:14:00,264 INFO  L87              Difference]: Start difference. First operand 42534 states and 63581 transitions. Second operand  has 6 states, 6 states have (on average 600.0) internal successors, (3600), 6 states have internal predecessors, (3600), 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)
[2024-12-02 14:14:05,314 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 14:14:05,314 INFO  L93              Difference]: Finished difference Result 98930 states and 148039 transitions.
[2024-12-02 14:14:05,315 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-12-02 14:14:05,315 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 600.0) internal successors, (3600), 6 states have internal predecessors, (3600), 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 3600
[2024-12-02 14:14:05,316 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 14:14:05,345 INFO  L225             Difference]: With dead ends: 98930
[2024-12-02 14:14:05,346 INFO  L226             Difference]: Without dead ends: 60534
[2024-12-02 14:14:05,366 INFO  L434           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
[2024-12-02 14:14:05,366 INFO  L435           NwaCegarLoop]: 9001 mSDtfsCounter, 6922 mSDsluCounter, 31698 mSDsCounter, 0 mSdLazyCounter, 7454 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6922 SdHoareTripleChecker+Valid, 40699 SdHoareTripleChecker+Invalid, 7493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 7454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time
[2024-12-02 14:14:05,366 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [6922 Valid, 40699 Invalid, 7493 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [39 Valid, 7454 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time]
[2024-12-02 14:14:05,392 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 60534 states.
[2024-12-02 14:14:05,650 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 60534 to 42784.
[2024-12-02 14:14:05,675 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 42784 states, 42783 states have (on average 1.4946824673351564) internal successors, (63947), 42783 states have internal predecessors, (63947), 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)
[2024-12-02 14:14:05,708 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 42784 states to 42784 states and 63947 transitions.
[2024-12-02 14:14:05,708 INFO  L78                 Accepts]: Start accepts. Automaton has 42784 states and 63947 transitions. Word has length 3600
[2024-12-02 14:14:05,709 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-12-02 14:14:05,709 INFO  L471      AbstractCegarLoop]: Abstraction has 42784 states and 63947 transitions.
[2024-12-02 14:14:05,709 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 600.0) internal successors, (3600), 6 states have internal predecessors, (3600), 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)
[2024-12-02 14:14:05,709 INFO  L276                IsEmpty]: Start isEmpty. Operand 42784 states and 63947 transitions.
[2024-12-02 14:14:05,774 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3602
[2024-12-02 14:14:05,774 INFO  L210           NwaCegarLoop]: Found error trace
[2024-12-02 14:14:05,775 INFO  L218           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2024-12-02 14:14:05,775 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2024-12-02 14:14:05,775 INFO  L396      AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 14:14:05,776 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 14:14:05,777 INFO  L85        PathProgramCache]: Analyzing trace with hash -2042760498, now seen corresponding path program 1 times
[2024-12-02 14:14:05,777 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 14:14:05,777 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951327238]
[2024-12-02 14:14:05,777 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 14:14:05,777 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms