./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lifts.1.prop1-back-serstep.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_04d41e81-dbd2-4ae8-a562-79da6594afa4/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04d41e81-dbd2-4ae8-a562-79da6594afa4/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04d41e81-dbd2-4ae8-a562-79da6594afa4/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04d41e81-dbd2-4ae8-a562-79da6594afa4/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lifts.1.prop1-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04d41e81-dbd2-4ae8-a562-79da6594afa4/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04d41e81-dbd2-4ae8-a562-79da6594afa4/bin/uautomizer-verify-aQ6SnzHsRB --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 c6abec5a6583764a8362c70a5bac21c0e9e2f542b2a1252183bbdab281d68a5f
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-11-28 03:37:36,956 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-28 03:37:37,076 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04d41e81-dbd2-4ae8-a562-79da6594afa4/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf
[2024-11-28 03:37:37,082 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-28 03:37:37,083 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-28 03:37:37,111 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-28 03:37:37,112 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-28 03:37:37,112 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-28 03:37:37,113 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-28 03:37:37,113 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-28 03:37:37,113 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-28 03:37:37,113 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-28 03:37:37,114 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-28 03:37:37,114 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-28 03:37:37,114 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-28 03:37:37,114 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-28 03:37:37,114 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-28 03:37:37,115 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-28 03:37:37,115 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-28 03:37:37,115 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-28 03:37:37,115 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-28 03:37:37,115 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-28 03:37:37,115 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-28 03:37:37,115 INFO  L153        SettingsManager]:  * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-28 03:37:37,116 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-28 03:37:37,116 INFO  L151        SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-11-28 03:37:37,116 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-28 03:37:37,116 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-28 03:37:37,116 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-28 03:37:37,116 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-28 03:37:37,116 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-28 03:37:37,116 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-28 03:37:37,116 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-28 03:37:37,117 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-28 03:37:37,117 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-28 03:37:37,117 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-28 03:37:37,117 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-28 03:37:37,117 INFO  L153        SettingsManager]:  * Compute procedure contracts=false
[2024-11-28 03:37:37,117 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-28 03:37:37,117 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-28 03:37:37,117 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-28 03:37:37,117 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-28 03:37:37,117 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-28 03:37:37,118 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-28 03:37:37,118 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-28 03:37:37,118 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_04d41e81-dbd2-4ae8-a562-79da6594afa4/bin/uautomizer-verify-aQ6SnzHsRB
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 -> c6abec5a6583764a8362c70a5bac21c0e9e2f542b2a1252183bbdab281d68a5f
[2024-11-28 03:37:37,490 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-28 03:37:37,506 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-28 03:37:37,510 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-28 03:37:37,511 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-28 03:37:37,512 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-28 03:37:37,513 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04d41e81-dbd2-4ae8-a562-79da6594afa4/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lifts.1.prop1-back-serstep.c
[2024-11-28 03:37:40,744 INFO  L533              CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04d41e81-dbd2-4ae8-a562-79da6594afa4/bin/uautomizer-verify-aQ6SnzHsRB/data/6282feb30/d04888ef78ad498192edc5a55eafe395/FLAG650048c86
[2024-11-28 03:37:41,480 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-28 03:37:41,481 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04d41e81-dbd2-4ae8-a562-79da6594afa4/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lifts.1.prop1-back-serstep.c
[2024-11-28 03:37:41,532 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04d41e81-dbd2-4ae8-a562-79da6594afa4/bin/uautomizer-verify-aQ6SnzHsRB/data/6282feb30/d04888ef78ad498192edc5a55eafe395/FLAG650048c86
[2024-11-28 03:37:41,561 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04d41e81-dbd2-4ae8-a562-79da6594afa4/bin/uautomizer-verify-aQ6SnzHsRB/data/6282feb30/d04888ef78ad498192edc5a55eafe395
[2024-11-28 03:37:41,565 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-28 03:37:41,569 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-28 03:37:41,572 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-28 03:37:41,572 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-28 03:37:41,578 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-28 03:37:41,579 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:37:41" (1/1) ...
[2024-11-28 03:37:41,580 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f99cec3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:41, skipping insertion in model container
[2024-11-28 03:37:41,581 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:37:41" (1/1) ...
[2024-11-28 03:37:41,727 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-28 03:37:42,094 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_04d41e81-dbd2-4ae8-a562-79da6594afa4/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lifts.1.prop1-back-serstep.c[1173,1186]
[2024-11-28 03:37:43,446 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-28 03:37:43,460 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-28 03:37:43,474 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_04d41e81-dbd2-4ae8-a562-79da6594afa4/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lifts.1.prop1-back-serstep.c[1173,1186]
[2024-11-28 03:37:44,319 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-28 03:37:44,338 INFO  L204         MainTranslator]: Completed translation
[2024-11-28 03:37:44,339 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:44 WrapperNode
[2024-11-28 03:37:44,340 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-28 03:37:44,341 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-28 03:37:44,341 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-28 03:37:44,341 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-28 03:37:44,352 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:44" (1/1) ...
[2024-11-28 03:37:44,702 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:44" (1/1) ...
[2024-11-28 03:37:48,006 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 31865
[2024-11-28 03:37:48,006 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-28 03:37:48,007 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-28 03:37:48,007 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-28 03:37:48,007 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-28 03:37:48,019 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:44" (1/1) ...
[2024-11-28 03:37:48,019 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:44" (1/1) ...
[2024-11-28 03:37:49,118 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:44" (1/1) ...
[2024-11-28 03:37:49,548 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-28 03:37:49,548 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:44" (1/1) ...
[2024-11-28 03:37:49,548 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:44" (1/1) ...
[2024-11-28 03:37:50,677 INFO  L184        PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:44" (1/1) ...
[2024-11-28 03:37:50,752 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:44" (1/1) ...
[2024-11-28 03:37:50,940 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:44" (1/1) ...
[2024-11-28 03:37:51,059 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:44" (1/1) ...
[2024-11-28 03:37:51,177 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:44" (1/1) ...
[2024-11-28 03:37:51,712 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-28 03:37:51,713 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-28 03:37:51,714 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-28 03:37:51,714 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-28 03:37:51,715 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:44" (1/1) ...
[2024-11-28 03:37:51,720 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-28 03:37:51,735 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04d41e81-dbd2-4ae8-a562-79da6594afa4/bin/uautomizer-verify-aQ6SnzHsRB/z3
[2024-11-28 03:37:51,751 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04d41e81-dbd2-4ae8-a562-79da6594afa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-28 03:37:51,758 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04d41e81-dbd2-4ae8-a562-79da6594afa4/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-28 03:37:51,789 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-28 03:37:51,790 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-28 03:37:51,790 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-28 03:37:51,790 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-28 03:37:53,795 INFO  L234             CfgBuilder]: Building ICFG
[2024-11-28 03:37:53,797 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-28 03:40:00,632 INFO  L?                        ?]: Removed 17452 outVars from TransFormulas that were not future-live.
[2024-11-28 03:40:00,632 INFO  L283             CfgBuilder]: Performing block encoding
[2024-11-28 03:40:00,856 INFO  L307             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-28 03:40:00,856 INFO  L312             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-28 03:40:00,857 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:40:00 BoogieIcfgContainer
[2024-11-28 03:40:00,857 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-28 03:40:00,860 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-28 03:40:00,860 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-28 03:40:00,868 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-28 03:40:00,868 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:37:41" (1/3) ...
[2024-11-28 03:40:00,869 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@663c7381 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:40:00, skipping insertion in model container
[2024-11-28 03:40:00,870 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:37:44" (2/3) ...
[2024-11-28 03:40:00,871 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@663c7381 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:40:00, skipping insertion in model container
[2024-11-28 03:40:00,872 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:40:00" (3/3) ...
[2024-11-28 03:40:00,873 INFO  L128   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.lifts.1.prop1-back-serstep.c
[2024-11-28 03:40:00,897 INFO  L216   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-28 03:40:00,899 INFO  L151   ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.lifts.1.prop1-back-serstep.c that has 1 procedures, 11270 locations, 1 initial locations, 1 loop locations, and 1 error locations.
[2024-11-28 03:40:01,202 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-28 03:40:01,217 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;@71f2437e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-28 03:40:01,221 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-28 03:40:01,256 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 11270 states, 11268 states have (on average 1.5038161164359247) internal successors, (16945), 11269 states have internal predecessors, (16945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-28 03:40:01,303 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 686
[2024-11-28 03:40:01,303 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-28 03:40:01,304 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-28 03:40:01,305 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-28 03:40:01,311 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 03:40:01,312 INFO  L85        PathProgramCache]: Analyzing trace with hash 2058966449, now seen corresponding path program 1 times
[2024-11-28 03:40:01,321 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 03:40:01,322 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896535965]
[2024-11-28 03:40:01,322 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 03:40:01,323 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 03:40:02,701 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 03:40:06,914 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 03:40:06,916 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-28 03:40:06,919 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896535965]
[2024-11-28 03:40:06,920 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896535965] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-28 03:40:06,920 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-28 03:40:06,921 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-28 03:40:06,922 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875456946]
[2024-11-28 03:40:06,924 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-28 03:40:06,932 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-28 03:40:06,933 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-28 03:40:06,964 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-28 03:40:06,965 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-28 03:40:06,991 INFO  L87              Difference]: Start difference. First operand  has 11270 states, 11268 states have (on average 1.5038161164359247) internal successors, (16945), 11269 states have internal predecessors, (16945), 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 171.25) internal successors, (685), 4 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-28 03:40:07,875 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-28 03:40:07,876 INFO  L93              Difference]: Finished difference Result 22265 states and 33481 transitions.
[2024-11-28 03:40:07,877 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-28 03:40:07,878 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 171.25) internal successors, (685), 4 states have internal predecessors, (685), 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 685
[2024-11-28 03:40:07,884 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-28 03:40:07,958 INFO  L225             Difference]: With dead ends: 22265
[2024-11-28 03:40:07,958 INFO  L226             Difference]: Without dead ends: 11269
[2024-11-28 03:40:07,983 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
[2024-11-28 03:40:07,987 INFO  L435           NwaCegarLoop]: 16939 mSDtfsCounter, 0 mSDsluCounter, 33872 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 50811 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-28 03:40:07,989 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 50811 Invalid, 11 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-28 03:40:08,028 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11269 states.
[2024-11-28 03:40:08,333 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11269 to 11269.
[2024-11-28 03:40:08,359 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 11269 states, 11268 states have (on average 1.5036386226482072) internal successors, (16943), 11268 states have internal predecessors, (16943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-28 03:40:08,418 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 11269 states to 11269 states and 16943 transitions.
[2024-11-28 03:40:08,419 INFO  L78                 Accepts]: Start accepts. Automaton has 11269 states and 16943 transitions. Word has length 685
[2024-11-28 03:40:08,421 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-28 03:40:08,421 INFO  L471      AbstractCegarLoop]: Abstraction has 11269 states and 16943 transitions.
[2024-11-28 03:40:08,423 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 171.25) internal successors, (685), 4 states have internal predecessors, (685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-28 03:40:08,423 INFO  L276                IsEmpty]: Start isEmpty. Operand 11269 states and 16943 transitions.
[2024-11-28 03:40:08,442 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 687
[2024-11-28 03:40:08,442 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-28 03:40:08,443 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-28 03:40:08,443 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-28 03:40:08,444 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-28 03:40:08,445 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 03:40:08,445 INFO  L85        PathProgramCache]: Analyzing trace with hash -594849948, now seen corresponding path program 1 times
[2024-11-28 03:40:08,445 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 03:40:08,446 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131138423]
[2024-11-28 03:40:08,446 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 03:40:08,446 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 03:40:08,868 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 03:40:10,655 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 03:40:10,658 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-28 03:40:10,658 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131138423]
[2024-11-28 03:40:10,659 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131138423] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-28 03:40:10,659 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-28 03:40:10,659 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-28 03:40:10,659 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425126682]
[2024-11-28 03:40:10,659 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-28 03:40:10,661 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-28 03:40:10,661 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-28 03:40:10,663 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-28 03:40:10,663 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-28 03:40:10,663 INFO  L87              Difference]: Start difference. First operand 11269 states and 16943 transitions. Second operand  has 4 states, 4 states have (on average 171.5) internal successors, (686), 4 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-28 03:40:11,187 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-28 03:40:11,187 INFO  L93              Difference]: Finished difference Result 22266 states and 33479 transitions.
[2024-11-28 03:40:11,188 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-28 03:40:11,192 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 171.5) internal successors, (686), 4 states have internal predecessors, (686), 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 686
[2024-11-28 03:40:11,197 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-28 03:40:11,240 INFO  L225             Difference]: With dead ends: 22266
[2024-11-28 03:40:11,240 INFO  L226             Difference]: Without dead ends: 11271
[2024-11-28 03:40:11,253 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
[2024-11-28 03:40:11,256 INFO  L435           NwaCegarLoop]: 16939 mSDtfsCounter, 0 mSDsluCounter, 33868 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 50807 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-28 03:40:11,256 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 50807 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-28 03:40:11,279 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11271 states.
[2024-11-28 03:40:11,495 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11271 to 11271.
[2024-11-28 03:40:11,514 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 11271 states, 11270 states have (on average 1.5035492457852706) internal successors, (16945), 11270 states have internal predecessors, (16945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-28 03:40:11,564 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 11271 states to 11271 states and 16945 transitions.
[2024-11-28 03:40:11,564 INFO  L78                 Accepts]: Start accepts. Automaton has 11271 states and 16945 transitions. Word has length 686
[2024-11-28 03:40:11,567 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-28 03:40:11,567 INFO  L471      AbstractCegarLoop]: Abstraction has 11271 states and 16945 transitions.
[2024-11-28 03:40:11,568 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 171.5) internal successors, (686), 4 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-28 03:40:11,568 INFO  L276                IsEmpty]: Start isEmpty. Operand 11271 states and 16945 transitions.
[2024-11-28 03:40:11,588 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 688
[2024-11-28 03:40:11,589 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-28 03:40:11,591 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-28 03:40:11,591 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-28 03:40:11,591 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-28 03:40:11,595 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 03:40:11,596 INFO  L85        PathProgramCache]: Analyzing trace with hash 1936526570, now seen corresponding path program 1 times
[2024-11-28 03:40:11,596 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 03:40:11,596 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770255570]
[2024-11-28 03:40:11,596 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 03:40:11,596 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 03:40:12,023 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 03:40:13,987 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 03:40:13,991 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-28 03:40:13,991 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770255570]
[2024-11-28 03:40:13,991 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770255570] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-28 03:40:13,991 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-28 03:40:13,992 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-28 03:40:13,992 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211058087]
[2024-11-28 03:40:13,992 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-28 03:40:13,993 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-28 03:40:13,993 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-28 03:40:13,994 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-28 03:40:13,995 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-28 03:40:13,995 INFO  L87              Difference]: Start difference. First operand 11271 states and 16945 transitions. Second operand  has 5 states, 5 states have (on average 137.4) internal successors, (687), 5 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-28 03:40:14,924 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-28 03:40:14,925 INFO  L93              Difference]: Finished difference Result 33251 states and 49996 transitions.
[2024-11-28 03:40:14,925 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-28 03:40:14,926 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 137.4) internal successors, (687), 5 states have internal predecessors, (687), 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 687
[2024-11-28 03:40:14,929 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-28 03:40:15,009 INFO  L225             Difference]: With dead ends: 33251
[2024-11-28 03:40:15,009 INFO  L226             Difference]: Without dead ends: 22254
[2024-11-28 03:40:15,024 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
[2024-11-28 03:40:15,025 INFO  L435           NwaCegarLoop]: 16937 mSDtfsCounter, 16246 mSDsluCounter, 50396 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16246 SdHoareTripleChecker+Valid, 67333 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-28 03:40:15,026 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [16246 Valid, 67333 Invalid, 22 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-28 03:40:15,064 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 22254 states.
[2024-11-28 03:40:15,363 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 22254 to 12353.
[2024-11-28 03:40:15,384 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 12353 states, 12352 states have (on average 1.5031573834196892) internal successors, (18567), 12352 states have internal predecessors, (18567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-28 03:40:15,422 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 12353 states to 12353 states and 18567 transitions.
[2024-11-28 03:40:15,423 INFO  L78                 Accepts]: Start accepts. Automaton has 12353 states and 18567 transitions. Word has length 687
[2024-11-28 03:40:15,425 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-28 03:40:15,425 INFO  L471      AbstractCegarLoop]: Abstraction has 12353 states and 18567 transitions.
[2024-11-28 03:40:15,425 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 137.4) internal successors, (687), 5 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-28 03:40:15,426 INFO  L276                IsEmpty]: Start isEmpty. Operand 12353 states and 18567 transitions.
[2024-11-28 03:40:15,765 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 6053
[2024-11-28 03:40:15,766 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-28 03:40:15,769 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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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]
[2024-11-28 03:40:15,770 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-28 03:40:15,770 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-28 03:40:15,774 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 03:40:15,778 INFO  L85        PathProgramCache]: Analyzing trace with hash 85912040, now seen corresponding path program 1 times
[2024-11-28 03:40:15,778 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 03:40:15,778 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127512527]
[2024-11-28 03:40:15,781 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 03:40:15,781 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 03:40:33,029 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 03:40:57,299 INFO  L134       CoverageAnalysis]: Checked inductivity of 546 backedges. 546 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 03:40:57,300 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-28 03:40:57,300 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127512527]
[2024-11-28 03:40:57,300 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127512527] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-28 03:40:57,300 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-28 03:40:57,302 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-28 03:40:57,302 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967382318]
[2024-11-28 03:40:57,302 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-28 03:40:57,318 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-28 03:40:57,318 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-28 03:40:57,327 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-28 03:40:57,331 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-28 03:40:57,334 INFO  L87              Difference]: Start difference. First operand 12353 states and 18567 transitions. Second operand  has 3 states, 3 states have (on average 2017.3333333333333) internal successors, (6052), 3 states have internal predecessors, (6052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-28 03:40:57,841 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-28 03:40:57,841 INFO  L93              Difference]: Finished difference Result 23351 states and 35104 transitions.
[2024-11-28 03:40:57,845 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-28 03:40:57,848 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 2017.3333333333333) internal successors, (6052), 3 states have internal predecessors, (6052), 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 6052
[2024-11-28 03:40:57,853 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-28 03:40:57,892 INFO  L225             Difference]: With dead ends: 23351
[2024-11-28 03:40:57,892 INFO  L226             Difference]: Without dead ends: 12354
[2024-11-28 03:40:57,906 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-28 03:40:57,907 INFO  L435           NwaCegarLoop]: 16940 mSDtfsCounter, 0 mSDsluCounter, 16934 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 33874 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-28 03:40:57,908 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 33874 Invalid, 7 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-28 03:40:57,931 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 12354 states.
[2024-11-28 03:40:58,226 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 12354 to 12354.
[2024-11-28 03:40:58,246 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 12354 states, 12353 states have (on average 1.5031166518254675) internal successors, (18568), 12353 states have internal predecessors, (18568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-28 03:40:58,294 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 12354 states to 12354 states and 18568 transitions.
[2024-11-28 03:40:58,298 INFO  L78                 Accepts]: Start accepts. Automaton has 12354 states and 18568 transitions. Word has length 6052
[2024-11-28 03:40:58,301 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-28 03:40:58,302 INFO  L471      AbstractCegarLoop]: Abstraction has 12354 states and 18568 transitions.
[2024-11-28 03:40:58,304 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 2017.3333333333333) internal successors, (6052), 3 states have internal predecessors, (6052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-28 03:40:58,308 INFO  L276                IsEmpty]: Start isEmpty. Operand 12354 states and 18568 transitions.
[2024-11-28 03:40:59,338 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 6053
[2024-11-28 03:40:59,339 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-28 03:40:59,342 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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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]
[2024-11-28 03:40:59,343 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-28 03:40:59,343 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-28 03:40:59,346 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 03:40:59,349 INFO  L85        PathProgramCache]: Analyzing trace with hash 1463755033, now seen corresponding path program 1 times
[2024-11-28 03:40:59,350 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 03:40:59,350 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383570852]
[2024-11-28 03:40:59,352 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 03:40:59,352 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 03:41:12,084 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-28 03:41:33,390 INFO  L134       CoverageAnalysis]: Checked inductivity of 546 backedges. 546 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-28 03:41:33,390 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-28 03:41:33,390 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383570852]
[2024-11-28 03:41:33,391 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383570852] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-28 03:41:33,391 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-28 03:41:33,392 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-28 03:41:33,392 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770814032]
[2024-11-28 03:41:33,392 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-28 03:41:33,406 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-28 03:41:33,410 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-28 03:41:33,421 INFO  L144   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-28 03:41:33,425 INFO  L146   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-28 03:41:33,429 INFO  L87              Difference]: Start difference. First operand 12354 states and 18568 transitions. Second operand  has 3 states, 3 states have (on average 2017.3333333333333) internal successors, (6052), 3 states have internal predecessors, (6052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-28 03:41:33,817 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-28 03:41:33,818 INFO  L93              Difference]: Finished difference Result 23353 states and 35106 transitions.
[2024-11-28 03:41:33,819 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-28 03:41:33,829 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 2017.3333333333333) internal successors, (6052), 3 states have internal predecessors, (6052), 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 6052
[2024-11-28 03:41:33,835 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-28 03:41:33,897 INFO  L225             Difference]: With dead ends: 23353
[2024-11-28 03:41:33,901 INFO  L226             Difference]: Without dead ends: 12355
[2024-11-28 03:41:33,931 INFO  L434           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-28 03:41:33,931 INFO  L435           NwaCegarLoop]: 16940 mSDtfsCounter, 0 mSDsluCounter, 16934 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 33874 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-28 03:41:33,932 INFO  L436           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 33874 Invalid, 7 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-28 03:41:33,983 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 12355 states.
[2024-11-28 03:41:34,439 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 12355 to 12355.
[2024-11-28 03:41:34,456 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 12355 states, 12354 states have (on average 1.5030759268253198) internal successors, (18569), 12354 states have internal predecessors, (18569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-28 03:41:34,531 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 12355 states to 12355 states and 18569 transitions.
[2024-11-28 03:41:34,531 INFO  L78                 Accepts]: Start accepts. Automaton has 12355 states and 18569 transitions. Word has length 6052
[2024-11-28 03:41:34,538 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-28 03:41:34,538 INFO  L471      AbstractCegarLoop]: Abstraction has 12355 states and 18569 transitions.
[2024-11-28 03:41:34,540 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 2017.3333333333333) internal successors, (6052), 3 states have internal predecessors, (6052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-28 03:41:34,544 INFO  L276                IsEmpty]: Start isEmpty. Operand 12355 states and 18569 transitions.
[2024-11-28 03:41:35,524 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 6053
[2024-11-28 03:41:35,524 INFO  L210           NwaCegarLoop]: Found error trace
[2024-11-28 03:41:35,528 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2024-11-28 03:41:35,528 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-28 03:41:35,529 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-28 03:41:35,531 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-28 03:41:35,534 INFO  L85        PathProgramCache]: Analyzing trace with hash -129595896, now seen corresponding path program 1 times
[2024-11-28 03:41:35,534 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-28 03:41:35,534 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611528703]
[2024-11-28 03:41:35,537 INFO  L97    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-28 03:41:35,538 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-28 03:41:48,991 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat