./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-programs/Problem101_label08.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 2329fc70
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e2a4eb-b308-49a5-a64a-6f66037a03a0/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e2a4eb-b308-49a5-a64a-6f66037a03a0/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e2a4eb-b308-49a5-a64a-6f66037a03a0/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e2a4eb-b308-49a5-a64a-6f66037a03a0/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-programs/Problem101_label08.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e2a4eb-b308-49a5-a64a-6f66037a03a0/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e2a4eb-b308-49a5-a64a-6f66037a03a0/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 757b5a20d940c6b808111a308c888fc5fe2211cac603e5645744a05abf73e005
--- Real Ultimate output ---
[0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset.
This is Ultimate 0.2.2-dev-2329fc7
[2022-12-13 10:54:58,509 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-12-13 10:54:58,511 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-12-13 10:54:58,530 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-12-13 10:54:58,530 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-12-13 10:54:58,531 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-12-13 10:54:58,533 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-12-13 10:54:58,534 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-12-13 10:54:58,536 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-12-13 10:54:58,537 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-12-13 10:54:58,538 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2022-12-13 10:54:58,539 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-12-13 10:54:58,539 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-12-13 10:54:58,540 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-12-13 10:54:58,542 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-12-13 10:54:58,543 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-12-13 10:54:58,544 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-12-13 10:54:58,544 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-12-13 10:54:58,546 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-12-13 10:54:58,548 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-12-13 10:54:58,549 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-12-13 10:54:58,551 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-12-13 10:54:58,552 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-12-13 10:54:58,553 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-12-13 10:54:58,556 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-12-13 10:54:58,557 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-12-13 10:54:58,557 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-12-13 10:54:58,558 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-12-13 10:54:58,558 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-12-13 10:54:58,559 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-12-13 10:54:58,559 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-12-13 10:54:58,560 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-12-13 10:54:58,561 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-12-13 10:54:58,562 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-12-13 10:54:58,563 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-12-13 10:54:58,563 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-12-13 10:54:58,564 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-12-13 10:54:58,564 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-12-13 10:54:58,564 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2022-12-13 10:54:58,565 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2022-12-13 10:54:58,566 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-12-13 10:54:58,566 INFO  L101        SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e2a4eb-b308-49a5-a64a-6f66037a03a0/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf
[2022-12-13 10:54:58,589 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-12-13 10:54:58,589 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-12-13 10:54:58,589 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-12-13 10:54:58,589 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-12-13 10:54:58,590 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-12-13 10:54:58,590 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-12-13 10:54:58,591 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-12-13 10:54:58,591 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-12-13 10:54:58,591 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-12-13 10:54:58,591 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-12-13 10:54:58,592 INFO  L138        SettingsManager]:  * sizeof long=4
[2022-12-13 10:54:58,592 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-12-13 10:54:58,592 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2022-12-13 10:54:58,592 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-12-13 10:54:58,592 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-12-13 10:54:58,593 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-12-13 10:54:58,593 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-12-13 10:54:58,593 INFO  L138        SettingsManager]:  * sizeof long double=12
[2022-12-13 10:54:58,593 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-12-13 10:54:58,593 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-12-13 10:54:58,593 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-12-13 10:54:58,594 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-12-13 10:54:58,594 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-12-13 10:54:58,594 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-12-13 10:54:58,594 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-12-13 10:54:58,594 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-12-13 10:54:58,595 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-12-13 10:54:58,595 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-12-13 10:54:58,595 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-12-13 10:54:58,595 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-12-13 10:54:58,595 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2022-12-13 10:54:58,596 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-12-13 10:54:58,596 INFO  L138        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2022-12-13 10:54:58,596 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2022-12-13 10:54:58,596 INFO  L138        SettingsManager]:  * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2022-12-13 10:54:58,596 INFO  L138        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e2a4eb-b308-49a5-a64a-6f66037a03a0/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e2a4eb-b308-49a5-a64a-6f66037a03a0/bin/uautomizer-uyxdKDjOR8
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 757b5a20d940c6b808111a308c888fc5fe2211cac603e5645744a05abf73e005
[2022-12-13 10:54:58,784 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-12-13 10:54:58,802 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-12-13 10:54:58,803 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-12-13 10:54:58,804 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-12-13 10:54:58,805 INFO  L275        PluginConnector]: CDTParser initialized
[2022-12-13 10:54:58,806 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e2a4eb-b308-49a5-a64a-6f66037a03a0/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/eca-programs/Problem101_label08.c
[2022-12-13 10:55:01,449 INFO  L500              CDTParser]: Created temporary CDT project at NULL
[2022-12-13 10:55:02,400 INFO  L351              CDTParser]: Found 1 translation units.
[2022-12-13 10:55:02,401 INFO  L172              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e2a4eb-b308-49a5-a64a-6f66037a03a0/sv-benchmarks/c/eca-programs/Problem101_label08.c
[2022-12-13 10:55:02,560 INFO  L394              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e2a4eb-b308-49a5-a64a-6f66037a03a0/bin/uautomizer-uyxdKDjOR8/data/17353c967/594d7afa145c4593b7cacf52abf71371/FLAG6c1eb74da
[2022-12-13 10:55:02,569 INFO  L402              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e2a4eb-b308-49a5-a64a-6f66037a03a0/bin/uautomizer-uyxdKDjOR8/data/17353c967/594d7afa145c4593b7cacf52abf71371
[2022-12-13 10:55:02,571 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-12-13 10:55:02,572 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2022-12-13 10:55:02,573 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-12-13 10:55:02,573 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-12-13 10:55:02,575 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-12-13 10:55:02,576 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:55:02" (1/1) ...
[2022-12-13 10:55:02,576 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a612ca5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:55:02, skipping insertion in model container
[2022-12-13 10:55:02,576 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:55:02" (1/1) ...
[2022-12-13 10:55:02,581 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-12-13 10:55:03,214 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-12-13 10:55:13,040 WARN  L237   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_97e2a4eb-b308-49a5-a64a-6f66037a03a0/sv-benchmarks/c/eca-programs/Problem101_label08.c[2767137,2767150]
[2022-12-13 10:55:13,098 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-12-13 10:55:13,105 INFO  L203         MainTranslator]: Completed pre-run
[2022-12-13 10:55:18,953 WARN  L237   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_97e2a4eb-b308-49a5-a64a-6f66037a03a0/sv-benchmarks/c/eca-programs/Problem101_label08.c[2767137,2767150]
[2022-12-13 10:55:18,963 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-12-13 10:55:19,549 INFO  L208         MainTranslator]: Completed translation
[2022-12-13 10:55:19,549 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:55:19 WrapperNode
[2022-12-13 10:55:19,549 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-12-13 10:55:19,550 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-12-13 10:55:19,550 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-12-13 10:55:19,550 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-12-13 10:55:19,555 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:55:19" (1/1) ...
[2022-12-13 10:55:19,893 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:55:19" (1/1) ...
[2022-12-13 10:55:21,195 INFO  L138                Inliner]: procedures = 59, calls = 53, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 83780
[2022-12-13 10:55:21,195 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-12-13 10:55:21,196 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-12-13 10:55:21,196 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-12-13 10:55:21,196 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-12-13 10:55:21,204 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:55:19" (1/1) ...
[2022-12-13 10:55:21,204 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:55:19" (1/1) ...
[2022-12-13 10:55:21,429 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:55:19" (1/1) ...
[2022-12-13 10:55:21,430 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:55:19" (1/1) ...
[2022-12-13 10:55:21,977 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:55:19" (1/1) ...
[2022-12-13 10:55:22,138 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:55:19" (1/1) ...
[2022-12-13 10:55:22,214 INFO  L185        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:55:19" (1/1) ...
[2022-12-13 10:55:22,273 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:55:19" (1/1) ...
[2022-12-13 10:55:22,540 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-12-13 10:55:22,541 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-12-13 10:55:22,541 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-12-13 10:55:22,541 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-12-13 10:55:22,542 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:55:19" (1/1) ...
[2022-12-13 10:55:22,547 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-12-13 10:55:22,556 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e2a4eb-b308-49a5-a64a-6f66037a03a0/bin/uautomizer-uyxdKDjOR8/z3
[2022-12-13 10:55:22,566 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e2a4eb-b308-49a5-a64a-6f66037a03a0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-12-13 10:55:22,568 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97e2a4eb-b308-49a5-a64a-6f66037a03a0/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-12-13 10:55:22,593 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-12-13 10:55:22,593 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2022-12-13 10:55:22,593 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-12-13 10:55:22,593 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-12-13 10:55:22,696 INFO  L235             CfgBuilder]: Building ICFG
[2022-12-13 10:55:22,697 INFO  L261             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-12-13 10:55:53,908 INFO  L276             CfgBuilder]: Performing block encoding
[2022-12-13 10:55:53,941 INFO  L295             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-12-13 10:55:53,941 INFO  L300             CfgBuilder]: Removed 1 assume(true) statements.
[2022-12-13 10:55:53,948 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:55:53 BoogieIcfgContainer
[2022-12-13 10:55:53,948 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-12-13 10:55:53,950 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-12-13 10:55:53,950 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-12-13 10:55:53,952 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-12-13 10:55:53,952 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 10:55:02" (1/3) ...
[2022-12-13 10:55:53,953 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16c916cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 10:55:53, skipping insertion in model container
[2022-12-13 10:55:53,953 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:55:19" (2/3) ...
[2022-12-13 10:55:53,953 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16c916cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 10:55:53, skipping insertion in model container
[2022-12-13 10:55:53,953 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:55:53" (3/3) ...
[2022-12-13 10:55:53,954 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem101_label08.c
[2022-12-13 10:55:53,967 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-12-13 10:55:53,967 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-12-13 10:55:54,090 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-12-13 10:55:54,095 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@641f04f4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2022-12-13 10:55:54,095 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-12-13 10:55:54,126 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 10257 states, 10255 states have (on average 1.9892735251097027) internal successors, (20400), 10256 states have internal predecessors, (20400), 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)
[2022-12-13 10:55:54,739 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10091
[2022-12-13 10:55:54,739 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 10:55:54,743 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2022-12-13 10:55:54,744 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 10:55:54,758 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 10:55:54,761 INFO  L85        PathProgramCache]: Analyzing trace with hash -986135798, now seen corresponding path program 1 times
[2022-12-13 10:55:54,768 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 10:55:54,768 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71842434]
[2022-12-13 10:55:54,770 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 10:55:54,770 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 10:55:56,562 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 10:56:25,269 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 10:56:25,270 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 10:56:25,270 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71842434]
[2022-12-13 10:56:25,271 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71842434] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 10:56:25,271 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 10:56:25,272 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-13 10:56:25,274 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945969796]
[2022-12-13 10:56:25,274 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 10:56:25,290 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 10:56:25,291 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 10:56:25,328 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 10:56:25,328 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 10:56:25,346 INFO  L87              Difference]: Start difference. First operand  has 10257 states, 10255 states have (on average 1.9892735251097027) internal successors, (20400), 10256 states have internal predecessors, (20400), 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 3 states, 3 states have (on average 3363.3333333333335) internal successors, (10090), 2 states have internal predecessors, (10090), 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)
[2022-12-13 10:56:53,167 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 10:56:53,168 INFO  L93              Difference]: Finished difference Result 30705 states and 61134 transitions.
[2022-12-13 10:56:53,168 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 10:56:53,171 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3363.3333333333335) internal successors, (10090), 2 states have internal predecessors, (10090), 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 10090
[2022-12-13 10:56:53,186 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 10:56:53,241 INFO  L225             Difference]: With dead ends: 30705
[2022-12-13 10:56:53,242 INFO  L226             Difference]: Without dead ends: 20384
[2022-12-13 10:56:53,254 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 10:56:53,256 INFO  L413           NwaCegarLoop]: 3749 mSDtfsCounter, 1323 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 29786 mSolverCounterSat, 14106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1323 SdHoareTripleChecker+Valid, 3802 SdHoareTripleChecker+Invalid, 43892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 14106 IncrementalHoareTripleChecker+Valid, 29786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.3s IncrementalHoareTripleChecker+Time
[2022-12-13 10:56:53,257 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1323 Valid, 3802 Invalid, 43892 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [14106 Valid, 29786 Invalid, 0 Unknown, 0 Unchecked, 27.3s Time]
[2022-12-13 10:56:53,288 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 20384 states.
[2022-12-13 10:56:53,583 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 20384 to 20384.
[2022-12-13 10:56:53,611 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 20384 states, 20383 states have (on average 1.80954717166266) internal successors, (36884), 20383 states have internal predecessors, (36884), 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)
[2022-12-13 10:56:53,645 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20384 states to 20384 states and 36884 transitions.
[2022-12-13 10:56:53,646 INFO  L78                 Accepts]: Start accepts. Automaton has 20384 states and 36884 transitions. Word has length 10090
[2022-12-13 10:56:53,657 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 10:56:53,657 INFO  L495      AbstractCegarLoop]: Abstraction has 20384 states and 36884 transitions.
[2022-12-13 10:56:53,659 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3363.3333333333335) internal successors, (10090), 2 states have internal predecessors, (10090), 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)
[2022-12-13 10:56:53,660 INFO  L276                IsEmpty]: Start isEmpty. Operand 20384 states and 36884 transitions.
[2022-12-13 10:56:54,234 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10098
[2022-12-13 10:56:54,234 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 10:56:54,237 INFO  L195           NwaCegarLoop]: trace histogram [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, 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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]
[2022-12-13 10:56:54,237 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-12-13 10:56:54,238 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 10:56:54,239 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 10:56:54,241 INFO  L85        PathProgramCache]: Analyzing trace with hash 1850550221, now seen corresponding path program 1 times
[2022-12-13 10:56:54,241 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 10:56:54,241 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834202714]
[2022-12-13 10:56:54,243 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 10:56:54,243 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 10:56:55,317 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 10:57:16,752 INFO  L134       CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 10:57:16,752 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 10:57:16,752 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834202714]
[2022-12-13 10:57:16,752 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834202714] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 10:57:16,752 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 10:57:16,753 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-13 10:57:16,753 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920910136]
[2022-12-13 10:57:16,753 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 10:57:16,760 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 10:57:16,760 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 10:57:16,765 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 10:57:16,765 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 10:57:16,768 INFO  L87              Difference]: Start difference. First operand 20384 states and 36884 transitions. Second operand  has 3 states, 3 states have (on average 3365.6666666666665) internal successors, (10097), 2 states have internal predecessors, (10097), 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)
[2022-12-13 10:57:46,703 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 10:57:46,703 INFO  L93              Difference]: Finished difference Result 61146 states and 110647 transitions.
[2022-12-13 10:57:46,703 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 10:57:46,705 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3365.6666666666665) internal successors, (10097), 2 states have internal predecessors, (10097), 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 10097
[2022-12-13 10:57:46,705 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 10:57:46,766 INFO  L225             Difference]: With dead ends: 61146
[2022-12-13 10:57:46,766 INFO  L226             Difference]: Without dead ends: 40764
[2022-12-13 10:57:46,781 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 10:57:46,782 INFO  L413           NwaCegarLoop]: 6645 mSDtfsCounter, 12071 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 30229 mSolverCounterSat, 11203 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12071 SdHoareTripleChecker+Valid, 6694 SdHoareTripleChecker+Invalid, 41432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11203 IncrementalHoareTripleChecker+Valid, 30229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.3s IncrementalHoareTripleChecker+Time
[2022-12-13 10:57:46,782 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12071 Valid, 6694 Invalid, 41432 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11203 Valid, 30229 Invalid, 0 Unknown, 0 Unchecked, 29.3s Time]
[2022-12-13 10:57:46,808 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 40764 states.
[2022-12-13 10:57:47,130 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 40764 to 40764.
[2022-12-13 10:57:47,162 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 40764 states, 40763 states have (on average 1.6216421755022938) internal successors, (66103), 40763 states have internal predecessors, (66103), 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)
[2022-12-13 10:57:47,209 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 40764 states to 40764 states and 66103 transitions.
[2022-12-13 10:57:47,209 INFO  L78                 Accepts]: Start accepts. Automaton has 40764 states and 66103 transitions. Word has length 10097
[2022-12-13 10:57:47,210 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 10:57:47,210 INFO  L495      AbstractCegarLoop]: Abstraction has 40764 states and 66103 transitions.
[2022-12-13 10:57:47,212 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3365.6666666666665) internal successors, (10097), 2 states have internal predecessors, (10097), 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)
[2022-12-13 10:57:47,212 INFO  L276                IsEmpty]: Start isEmpty. Operand 40764 states and 66103 transitions.
[2022-12-13 10:57:47,840 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10104
[2022-12-13 10:57:47,840 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 10:57:47,850 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 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[2022-12-13 10:57:47,850 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-12-13 10:57:47,850 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 10:57:47,851 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 10:57:47,857 INFO  L85        PathProgramCache]: Analyzing trace with hash -373863254, now seen corresponding path program 1 times
[2022-12-13 10:57:47,857 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 10:57:47,857 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586069856]
[2022-12-13 10:57:47,859 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 10:57:47,859 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 10:57:49,116 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 10:58:09,012 INFO  L134       CoverageAnalysis]: Checked inductivity of 17 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2022-12-13 10:58:09,013 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 10:58:09,013 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586069856]
[2022-12-13 10:58:09,013 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586069856] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 10:58:09,013 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 10:58:09,014 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-13 10:58:09,014 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886139752]
[2022-12-13 10:58:09,014 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 10:58:09,019 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 10:58:09,020 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 10:58:09,024 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 10:58:09,025 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 10:58:09,027 INFO  L87              Difference]: Start difference. First operand 40764 states and 66103 transitions. Second operand  has 3 states, 3 states have (on average 3365.6666666666665) internal successors, (10097), 2 states have internal predecessors, (10097), 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)
[2022-12-13 10:58:40,283 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 10:58:40,283 INFO  L93              Difference]: Finished difference Result 122286 states and 198304 transitions.
[2022-12-13 10:58:40,283 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 10:58:40,284 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3365.6666666666665) internal successors, (10097), 2 states have internal predecessors, (10097), 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 10103
[2022-12-13 10:58:40,285 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 10:58:40,381 INFO  L225             Difference]: With dead ends: 122286
[2022-12-13 10:58:40,381 INFO  L226             Difference]: Without dead ends: 81524
[2022-12-13 10:58:40,402 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 10:58:40,403 INFO  L413           NwaCegarLoop]: 4819 mSDtfsCounter, 13685 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 28825 mSolverCounterSat, 11677 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13685 SdHoareTripleChecker+Valid, 4868 SdHoareTripleChecker+Invalid, 40502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11677 IncrementalHoareTripleChecker+Valid, 28825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.5s IncrementalHoareTripleChecker+Time
[2022-12-13 10:58:40,404 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13685 Valid, 4868 Invalid, 40502 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11677 Valid, 28825 Invalid, 0 Unknown, 0 Unchecked, 30.5s Time]
[2022-12-13 10:58:40,448 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 81524 states.
[2022-12-13 10:58:41,086 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 81524 to 81524.
[2022-12-13 10:58:41,150 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 81524 states, 81523 states have (on average 1.4754977123020496) internal successors, (120287), 81523 states have internal predecessors, (120287), 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)
[2022-12-13 10:58:41,251 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 81524 states to 81524 states and 120287 transitions.
[2022-12-13 10:58:41,251 INFO  L78                 Accepts]: Start accepts. Automaton has 81524 states and 120287 transitions. Word has length 10103
[2022-12-13 10:58:41,252 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 10:58:41,252 INFO  L495      AbstractCegarLoop]: Abstraction has 81524 states and 120287 transitions.
[2022-12-13 10:58:41,253 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3365.6666666666665) internal successors, (10097), 2 states have internal predecessors, (10097), 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)
[2022-12-13 10:58:41,253 INFO  L276                IsEmpty]: Start isEmpty. Operand 81524 states and 120287 transitions.
[2022-12-13 10:58:41,886 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10125
[2022-12-13 10:58:41,886 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 10:58:41,889 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2022-12-13 10:58:41,889 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-12-13 10:58:41,889 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 10:58:41,890 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 10:58:41,892 INFO  L85        PathProgramCache]: Analyzing trace with hash -1596176569, now seen corresponding path program 1 times
[2022-12-13 10:58:41,892 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 10:58:41,892 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324518732]
[2022-12-13 10:58:41,893 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 10:58:41,893 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 10:58:42,972 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 10:59:07,558 INFO  L134       CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 10:59:07,558 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 10:59:07,558 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324518732]
[2022-12-13 10:59:07,558 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324518732] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 10:59:07,558 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 10:59:07,559 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-13 10:59:07,559 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347437525]
[2022-12-13 10:59:07,559 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 10:59:07,563 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 10:59:07,563 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 10:59:07,568 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 10:59:07,568 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 10:59:07,569 INFO  L87              Difference]: Start difference. First operand 81524 states and 120287 transitions. Second operand  has 3 states, 3 states have (on average 3374.6666666666665) internal successors, (10124), 2 states have internal predecessors, (10124), 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)
[2022-12-13 10:59:39,100 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 10:59:39,100 INFO  L93              Difference]: Finished difference Result 244566 states and 360856 transitions.
[2022-12-13 10:59:39,100 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 10:59:39,102 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3374.6666666666665) internal successors, (10124), 2 states have internal predecessors, (10124), 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 10124
[2022-12-13 10:59:39,102 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 10:59:39,280 INFO  L225             Difference]: With dead ends: 244566
[2022-12-13 10:59:39,280 INFO  L226             Difference]: Without dead ends: 163044
[2022-12-13 10:59:39,307 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 10:59:39,308 INFO  L413           NwaCegarLoop]: 7107 mSDtfsCounter, 12034 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 34783 mSolverCounterSat, 6982 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12034 SdHoareTripleChecker+Valid, 7157 SdHoareTripleChecker+Invalid, 41765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6982 IncrementalHoareTripleChecker+Valid, 34783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.5s IncrementalHoareTripleChecker+Time
[2022-12-13 10:59:39,309 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12034 Valid, 7157 Invalid, 41765 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6982 Valid, 34783 Invalid, 0 Unknown, 0 Unchecked, 30.5s Time]
[2022-12-13 10:59:39,389 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 163044 states.
[2022-12-13 10:59:40,575 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 163044 to 163044.
[2022-12-13 10:59:40,676 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 163044 states, 163043 states have (on average 1.3602975902062646) internal successors, (221787), 163043 states have internal predecessors, (221787), 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)
[2022-12-13 10:59:40,851 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 163044 states to 163044 states and 221787 transitions.
[2022-12-13 10:59:40,851 INFO  L78                 Accepts]: Start accepts. Automaton has 163044 states and 221787 transitions. Word has length 10124
[2022-12-13 10:59:40,852 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 10:59:40,852 INFO  L495      AbstractCegarLoop]: Abstraction has 163044 states and 221787 transitions.
[2022-12-13 10:59:40,854 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3374.6666666666665) internal successors, (10124), 2 states have internal predecessors, (10124), 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)
[2022-12-13 10:59:40,854 INFO  L276                IsEmpty]: Start isEmpty. Operand 163044 states and 221787 transitions.
[2022-12-13 10:59:41,739 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10144
[2022-12-13 10:59:41,740 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 10:59:41,745 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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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]
[2022-12-13 10:59:41,745 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2022-12-13 10:59:41,745 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 10:59:41,746 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 10:59:41,750 INFO  L85        PathProgramCache]: Analyzing trace with hash -616805204, now seen corresponding path program 1 times
[2022-12-13 10:59:41,751 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 10:59:41,751 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842247394]
[2022-12-13 10:59:41,751 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 10:59:41,752 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 10:59:42,821 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 11:00:02,641 INFO  L134       CoverageAnalysis]: Checked inductivity of 70 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked.
[2022-12-13 11:00:02,641 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 11:00:02,642 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842247394]
[2022-12-13 11:00:02,642 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842247394] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 11:00:02,642 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 11:00:02,643 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-13 11:00:02,643 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699449938]
[2022-12-13 11:00:02,643 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 11:00:02,651 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 11:00:02,652 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 11:00:02,656 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 11:00:02,656 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 11:00:02,658 INFO  L87              Difference]: Start difference. First operand 163044 states and 221787 transitions. Second operand  has 3 states, 3 states have (on average 3370.0) internal successors, (10110), 2 states have internal predecessors, (10110), 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)
[2022-12-13 11:00:35,017 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 11:00:35,018 INFO  L93              Difference]: Finished difference Result 489126 states and 665356 transitions.
[2022-12-13 11:00:35,018 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 11:00:35,019 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3370.0) internal successors, (10110), 2 states have internal predecessors, (10110), 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 10143
[2022-12-13 11:00:35,019 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 11:00:35,418 INFO  L225             Difference]: With dead ends: 489126
[2022-12-13 11:00:35,418 INFO  L226             Difference]: Without dead ends: 326084
[2022-12-13 11:00:35,486 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 11:00:35,487 INFO  L413           NwaCegarLoop]: 8432 mSDtfsCounter, 11206 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 31384 mSolverCounterSat, 10501 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11206 SdHoareTripleChecker+Valid, 8481 SdHoareTripleChecker+Invalid, 41885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10501 IncrementalHoareTripleChecker+Valid, 31384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.8s IncrementalHoareTripleChecker+Time
[2022-12-13 11:00:35,487 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [11206 Valid, 8481 Invalid, 41885 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10501 Valid, 31384 Invalid, 0 Unknown, 0 Unchecked, 30.8s Time]
[2022-12-13 11:00:35,677 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 326084 states.
[2022-12-13 11:00:38,321 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 326084 to 326084.
[2022-12-13 11:00:38,529 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 326084 states, 326083 states have (on average 1.2761198835879208) internal successors, (416121), 326083 states have internal predecessors, (416121), 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)
[2022-12-13 11:00:39,085 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 326084 states to 326084 states and 416121 transitions.
[2022-12-13 11:00:39,085 INFO  L78                 Accepts]: Start accepts. Automaton has 326084 states and 416121 transitions. Word has length 10143
[2022-12-13 11:00:39,086 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 11:00:39,086 INFO  L495      AbstractCegarLoop]: Abstraction has 326084 states and 416121 transitions.
[2022-12-13 11:00:39,087 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3370.0) internal successors, (10110), 2 states have internal predecessors, (10110), 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)
[2022-12-13 11:00:39,087 INFO  L276                IsEmpty]: Start isEmpty. Operand 326084 states and 416121 transitions.
[2022-12-13 11:00:40,140 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10147
[2022-12-13 11:00:40,140 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 11:00:40,143 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 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[2022-12-13 11:00:40,143 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2022-12-13 11:00:40,143 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 11:00:40,143 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 11:00:40,146 INFO  L85        PathProgramCache]: Analyzing trace with hash 1637978869, now seen corresponding path program 1 times
[2022-12-13 11:00:40,146 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 11:00:40,146 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845138858]
[2022-12-13 11:00:40,146 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 11:00:40,147 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 11:00:41,147 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 11:01:02,735 INFO  L134       CoverageAnalysis]: Checked inductivity of 67 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked.
[2022-12-13 11:01:02,736 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 11:01:02,736 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845138858]
[2022-12-13 11:01:02,736 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845138858] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 11:01:02,736 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 11:01:02,737 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-13 11:01:02,737 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925712224]
[2022-12-13 11:01:02,737 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 11:01:02,741 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 11:01:02,741 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 11:01:02,745 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 11:01:02,746 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 11:01:02,748 INFO  L87              Difference]: Start difference. First operand 326084 states and 416121 transitions. Second operand  has 3 states, 3 states have (on average 3378.0) internal successors, (10134), 2 states have internal predecessors, (10134), 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)
[2022-12-13 11:01:34,323 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 11:01:34,323 INFO  L93              Difference]: Finished difference Result 978246 states and 1248358 transitions.
[2022-12-13 11:01:34,324 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 11:01:34,325 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3378.0) internal successors, (10134), 2 states have internal predecessors, (10134), 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 10146
[2022-12-13 11:01:34,325 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 11:01:35,077 INFO  L225             Difference]: With dead ends: 978246
[2022-12-13 11:01:35,077 INFO  L226             Difference]: Without dead ends: 652164
[2022-12-13 11:01:35,209 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 11:01:35,210 INFO  L413           NwaCegarLoop]: 6448 mSDtfsCounter, 12718 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 29201 mSolverCounterSat, 11758 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12718 SdHoareTripleChecker+Valid, 6497 SdHoareTripleChecker+Invalid, 40959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11758 IncrementalHoareTripleChecker+Valid, 29201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.9s IncrementalHoareTripleChecker+Time
[2022-12-13 11:01:35,210 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [12718 Valid, 6497 Invalid, 40959 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11758 Valid, 29201 Invalid, 0 Unknown, 0 Unchecked, 28.9s Time]
[2022-12-13 11:01:35,714 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 652164 states.
[2022-12-13 11:01:40,830 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 652164 to 652164.
[2022-12-13 11:01:41,260 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 652164 states, 652163 states have (on average 1.213523306289992) internal successors, (791415), 652163 states have internal predecessors, (791415), 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)
[2022-12-13 11:01:42,104 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 652164 states to 652164 states and 791415 transitions.
[2022-12-13 11:01:42,105 INFO  L78                 Accepts]: Start accepts. Automaton has 652164 states and 791415 transitions. Word has length 10146
[2022-12-13 11:01:42,105 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 11:01:42,105 INFO  L495      AbstractCegarLoop]: Abstraction has 652164 states and 791415 transitions.
[2022-12-13 11:01:42,107 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3378.0) internal successors, (10134), 2 states have internal predecessors, (10134), 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)
[2022-12-13 11:01:42,107 INFO  L276                IsEmpty]: Start isEmpty. Operand 652164 states and 791415 transitions.
[2022-12-13 11:01:43,525 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10158
[2022-12-13 11:01:43,525 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 11:01:43,527 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2022-12-13 11:01:43,527 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2022-12-13 11:01:43,527 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 11:01:43,527 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 11:01:43,529 INFO  L85        PathProgramCache]: Analyzing trace with hash -1274349257, now seen corresponding path program 1 times
[2022-12-13 11:01:43,529 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 11:01:43,529 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196104571]
[2022-12-13 11:01:43,530 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 11:01:43,530 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 11:01:44,764 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 11:02:07,423 INFO  L134       CoverageAnalysis]: Checked inductivity of 66 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 11:02:07,423 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 11:02:07,423 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196104571]
[2022-12-13 11:02:07,423 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196104571] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 11:02:07,423 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 11:02:07,426 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-13 11:02:07,426 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333480720]
[2022-12-13 11:02:07,426 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 11:02:07,430 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 11:02:07,431 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 11:02:07,436 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 11:02:07,436 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 11:02:07,439 INFO  L87              Difference]: Start difference. First operand 652164 states and 791415 transitions. Second operand  has 3 states, 3 states have (on average 3385.6666666666665) internal successors, (10157), 2 states have internal predecessors, (10157), 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)
[2022-12-13 11:02:43,050 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 11:02:43,051 INFO  L93              Difference]: Finished difference Result 1956486 states and 2374240 transitions.
[2022-12-13 11:02:43,051 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 11:02:43,053 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3385.6666666666665) internal successors, (10157), 2 states have internal predecessors, (10157), 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 10157
[2022-12-13 11:02:43,053 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 11:02:44,654 INFO  L225             Difference]: With dead ends: 1956486
[2022-12-13 11:02:44,654 INFO  L226             Difference]: Without dead ends: 1304324
[2022-12-13 11:02:44,993 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 11:02:44,994 INFO  L413           NwaCegarLoop]: 6206 mSDtfsCounter, 13278 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 27509 mSolverCounterSat, 13030 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13278 SdHoareTripleChecker+Valid, 6255 SdHoareTripleChecker+Invalid, 40539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13030 IncrementalHoareTripleChecker+Valid, 27509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.6s IncrementalHoareTripleChecker+Time
[2022-12-13 11:02:44,994 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13278 Valid, 6255 Invalid, 40539 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13030 Valid, 27509 Invalid, 0 Unknown, 0 Unchecked, 30.6s Time]
[2022-12-13 11:02:45,820 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1304324 states.
[2022-12-13 11:02:56,104 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1304324 to 1304324.
[2022-12-13 11:02:56,775 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1304324 states, 1304323 states have (on average 1.1506406005260967) internal successors, (1500807), 1304323 states have internal predecessors, (1500807), 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)
[2022-12-13 11:02:58,889 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1304324 states to 1304324 states and 1500807 transitions.
[2022-12-13 11:02:58,890 INFO  L78                 Accepts]: Start accepts. Automaton has 1304324 states and 1500807 transitions. Word has length 10157
[2022-12-13 11:02:58,890 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 11:02:58,890 INFO  L495      AbstractCegarLoop]: Abstraction has 1304324 states and 1500807 transitions.
[2022-12-13 11:02:58,892 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3385.6666666666665) internal successors, (10157), 2 states have internal predecessors, (10157), 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)
[2022-12-13 11:02:58,892 INFO  L276                IsEmpty]: Start isEmpty. Operand 1304324 states and 1500807 transitions.
[2022-12-13 11:03:01,003 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10318
[2022-12-13 11:03:01,003 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 11:03:01,005 INFO  L195           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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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]
[2022-12-13 11:03:01,005 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2022-12-13 11:03:01,005 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 11:03:01,005 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 11:03:01,007 INFO  L85        PathProgramCache]: Analyzing trace with hash -136996069, now seen corresponding path program 1 times
[2022-12-13 11:03:01,007 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 11:03:01,007 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803277832]
[2022-12-13 11:03:01,008 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 11:03:01,008 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 11:03:02,124 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 11:03:22,938 INFO  L134       CoverageAnalysis]: Checked inductivity of 394 backedges. 224 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked.
[2022-12-13 11:03:22,939 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 11:03:22,939 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803277832]
[2022-12-13 11:03:22,939 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803277832] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 11:03:22,939 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 11:03:22,939 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-13 11:03:22,940 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650202579]
[2022-12-13 11:03:22,940 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 11:03:22,943 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 11:03:22,943 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 11:03:22,947 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 11:03:22,947 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 11:03:22,948 INFO  L87              Difference]: Start difference. First operand 1304324 states and 1500807 transitions. Second operand  has 3 states, 3 states have (on average 3397.3333333333335) internal successors, (10192), 2 states have internal predecessors, (10192), 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)
[2022-12-13 11:04:05,766 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 11:04:05,766 INFO  L93              Difference]: Finished difference Result 3912966 states and 4502416 transitions.
[2022-12-13 11:04:05,766 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 11:04:05,767 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3397.3333333333335) internal successors, (10192), 2 states have internal predecessors, (10192), 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 10317
[2022-12-13 11:04:05,767 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 11:04:09,265 INFO  L225             Difference]: With dead ends: 3912966
[2022-12-13 11:04:09,265 INFO  L226             Difference]: Without dead ends: 2608644
[2022-12-13 11:04:09,685 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 11:04:09,686 INFO  L413           NwaCegarLoop]: 7574 mSDtfsCounter, 11583 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 30499 mSolverCounterSat, 11022 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11583 SdHoareTripleChecker+Valid, 7623 SdHoareTripleChecker+Invalid, 41521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11022 IncrementalHoareTripleChecker+Valid, 30499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.7s IncrementalHoareTripleChecker+Time
[2022-12-13 11:04:09,686 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [11583 Valid, 7623 Invalid, 41521 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11022 Valid, 30499 Invalid, 0 Unknown, 0 Unchecked, 32.7s Time]
[2022-12-13 11:04:11,813 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2608644 states.
[2022-12-13 11:04:33,350 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2608644 to 2608644.
[2022-12-13 11:04:34,269 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2608644 states, 2608643 states have (on average 1.1132121183312549) internal successors, (2903973), 2608643 states have internal predecessors, (2903973), 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)