./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-programs/Problem101_label03.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 839c364b
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1739c9fb-17c1-4c45-9843-a0a1023212cc/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1739c9fb-17c1-4c45-9843-a0a1023212cc/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1739c9fb-17c1-4c45-9843-a0a1023212cc/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1739c9fb-17c1-4c45-9843-a0a1023212cc/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-programs/Problem101_label03.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1739c9fb-17c1-4c45-9843-a0a1023212cc/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1739c9fb-17c1-4c45-9843-a0a1023212cc/bin/uautomizer-DrprNOufMa --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 c323c9a0eef5684207b1d5612520b06fe40498a2ad966f79070dc6b286f2013e
--- Real Ultimate output ---
This is Ultimate 0.2.2-hotfix-svcomp22-839c364
[2021-12-06 19:53:44,408 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2021-12-06 19:53:44,410 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2021-12-06 19:53:44,441 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-12-06 19:53:44,441 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-12-06 19:53:44,442 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-12-06 19:53:44,444 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-12-06 19:53:44,446 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2021-12-06 19:53:44,448 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-12-06 19:53:44,450 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-12-06 19:53:44,451 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2021-12-06 19:53:44,452 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-12-06 19:53:44,453 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-12-06 19:53:44,454 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-12-06 19:53:44,455 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-12-06 19:53:44,457 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-12-06 19:53:44,458 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-12-06 19:53:44,459 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-12-06 19:53:44,461 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-12-06 19:53:44,463 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2021-12-06 19:53:44,465 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-12-06 19:53:44,466 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-12-06 19:53:44,467 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2021-12-06 19:53:44,468 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-12-06 19:53:44,470 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-12-06 19:53:44,471 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-12-06 19:53:44,471 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-12-06 19:53:44,472 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-12-06 19:53:44,472 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-12-06 19:53:44,473 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-12-06 19:53:44,473 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-12-06 19:53:44,474 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-12-06 19:53:44,474 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-12-06 19:53:44,475 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2021-12-06 19:53:44,476 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-12-06 19:53:44,476 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2021-12-06 19:53:44,477 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-12-06 19:53:44,477 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-12-06 19:53:44,477 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2021-12-06 19:53:44,477 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2021-12-06 19:53:44,478 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2021-12-06 19:53:44,479 INFO  L101        SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1739c9fb-17c1-4c45-9843-a0a1023212cc/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf
[2021-12-06 19:53:44,495 INFO  L113        SettingsManager]: Loading preferences was successful
[2021-12-06 19:53:44,495 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2021-12-06 19:53:44,496 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-12-06 19:53:44,496 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-12-06 19:53:44,496 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2021-12-06 19:53:44,496 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2021-12-06 19:53:44,497 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-12-06 19:53:44,497 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2021-12-06 19:53:44,497 INFO  L138        SettingsManager]:  * Use SBE=true
[2021-12-06 19:53:44,497 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-12-06 19:53:44,497 INFO  L138        SettingsManager]:  * sizeof long=4
[2021-12-06 19:53:44,497 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2021-12-06 19:53:44,498 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2021-12-06 19:53:44,498 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2021-12-06 19:53:44,498 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2021-12-06 19:53:44,498 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-12-06 19:53:44,498 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2021-12-06 19:53:44,498 INFO  L138        SettingsManager]:  * sizeof long double=12
[2021-12-06 19:53:44,498 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2021-12-06 19:53:44,498 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2021-12-06 19:53:44,499 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2021-12-06 19:53:44,499 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-12-06 19:53:44,499 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2021-12-06 19:53:44,499 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2021-12-06 19:53:44,499 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-12-06 19:53:44,499 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-12-06 19:53:44,499 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2021-12-06 19:53:44,499 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-12-06 19:53:44,500 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2021-12-06 19:53:44,500 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-12-06 19:53:44,500 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2021-12-06 19:53:44,500 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2021-12-06 19:53:44,500 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-12-06 19:53:44,500 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2021-12-06 19:53:44,500 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
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_1739c9fb-17c1-4c45-9843-a0a1023212cc/bin/uautomizer-DrprNOufMa/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_1739c9fb-17c1-4c45-9843-a0a1023212cc/bin/uautomizer-DrprNOufMa
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 -> c323c9a0eef5684207b1d5612520b06fe40498a2ad966f79070dc6b286f2013e
[2021-12-06 19:53:44,667 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2021-12-06 19:53:44,684 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-12-06 19:53:44,686 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-12-06 19:53:44,687 INFO  L271        PluginConnector]: Initializing CDTParser...
[2021-12-06 19:53:44,687 INFO  L275        PluginConnector]: CDTParser initialized
[2021-12-06 19:53:44,689 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1739c9fb-17c1-4c45-9843-a0a1023212cc/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/eca-programs/Problem101_label03.c
[2021-12-06 19:53:44,736 INFO  L220              CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1739c9fb-17c1-4c45-9843-a0a1023212cc/bin/uautomizer-DrprNOufMa/data/38e1a605c/2fbd816c37364d22a041baf56daa06b5/FLAGbac7a8122
[2021-12-06 19:53:46,079 INFO  L306              CDTParser]: Found 1 translation units.
[2021-12-06 19:53:46,079 INFO  L160              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1739c9fb-17c1-4c45-9843-a0a1023212cc/sv-benchmarks/c/eca-programs/Problem101_label03.c
[2021-12-06 19:53:46,249 INFO  L349              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1739c9fb-17c1-4c45-9843-a0a1023212cc/bin/uautomizer-DrprNOufMa/data/38e1a605c/2fbd816c37364d22a041baf56daa06b5/FLAGbac7a8122
[2021-12-06 19:53:46,715 INFO  L357              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1739c9fb-17c1-4c45-9843-a0a1023212cc/bin/uautomizer-DrprNOufMa/data/38e1a605c/2fbd816c37364d22a041baf56daa06b5
[2021-12-06 19:53:46,717 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-12-06 19:53:46,718 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2021-12-06 19:53:46,719 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-12-06 19:53:46,719 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-12-06 19:53:46,722 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2021-12-06 19:53:46,723 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:53:46" (1/1) ...
[2021-12-06 19:53:46,724 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@741ca5fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:53:46, skipping insertion in model container
[2021-12-06 19:53:46,724 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 07:53:46" (1/1) ...
[2021-12-06 19:53:46,730 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2021-12-06 19:53:47,325 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2021-12-06 19:53:57,128 WARN  L230   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_1739c9fb-17c1-4c45-9843-a0a1023212cc/sv-benchmarks/c/eca-programs/Problem101_label03.c[2768501,2768514]
[2021-12-06 19:53:57,191 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2021-12-06 19:53:57,197 INFO  L203         MainTranslator]: Completed pre-run
[2021-12-06 19:54:03,136 WARN  L230   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_1739c9fb-17c1-4c45-9843-a0a1023212cc/sv-benchmarks/c/eca-programs/Problem101_label03.c[2768501,2768514]
[2021-12-06 19:54:03,146 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2021-12-06 19:54:03,876 INFO  L208         MainTranslator]: Completed translation
[2021-12-06 19:54:03,876 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:54:03 WrapperNode
[2021-12-06 19:54:03,876 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-12-06 19:54:03,877 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-12-06 19:54:03,877 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-12-06 19:54:03,877 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2021-12-06 19:54:03,882 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:54:03" (1/1) ...
[2021-12-06 19:54:04,240 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:54:03" (1/1) ...
[2021-12-06 19:54:05,520 INFO  L137                Inliner]: procedures = 59, calls = 53, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 83780
[2021-12-06 19:54:05,627 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-12-06 19:54:05,628 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-12-06 19:54:05,628 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2021-12-06 19:54:05,628 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2021-12-06 19:54:05,636 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:54:03" (1/1) ...
[2021-12-06 19:54:05,650 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:54:03" (1/1) ...
[2021-12-06 19:54:05,848 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:54:03" (1/1) ...
[2021-12-06 19:54:05,848 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:54:03" (1/1) ...
[2021-12-06 19:54:06,300 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:54:03" (1/1) ...
[2021-12-06 19:54:06,401 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:54:03" (1/1) ...
[2021-12-06 19:54:06,515 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:54:03" (1/1) ...
[2021-12-06 19:54:06,866 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-12-06 19:54:06,867 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-12-06 19:54:06,867 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2021-12-06 19:54:06,867 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2021-12-06 19:54:06,868 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:54:03" (1/1) ...
[2021-12-06 19:54:06,873 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-12-06 19:54:06,880 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1739c9fb-17c1-4c45-9843-a0a1023212cc/bin/uautomizer-DrprNOufMa/z3
[2021-12-06 19:54:06,889 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1739c9fb-17c1-4c45-9843-a0a1023212cc/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-12-06 19:54:06,891 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1739c9fb-17c1-4c45-9843-a0a1023212cc/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-12-06 19:54:06,918 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2021-12-06 19:54:06,918 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2021-12-06 19:54:06,918 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-12-06 19:54:06,918 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-12-06 19:54:07,020 INFO  L236             CfgBuilder]: Building ICFG
[2021-12-06 19:54:07,021 INFO  L262             CfgBuilder]: Building CFG for each procedure with an implementation
[2021-12-06 19:54:30,555 INFO  L277             CfgBuilder]: Performing block encoding
[2021-12-06 19:54:30,595 INFO  L296             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-12-06 19:54:30,595 INFO  L301             CfgBuilder]: Removed 1 assume(true) statements.
[2021-12-06 19:54:30,603 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:54:30 BoogieIcfgContainer
[2021-12-06 19:54:30,604 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-12-06 19:54:30,605 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-12-06 19:54:30,605 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2021-12-06 19:54:30,607 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2021-12-06 19:54:30,607 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 07:53:46" (1/3) ...
[2021-12-06 19:54:30,608 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cef4cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:54:30, skipping insertion in model container
[2021-12-06 19:54:30,608 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 07:54:03" (2/3) ...
[2021-12-06 19:54:30,608 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cef4cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 07:54:30, skipping insertion in model container
[2021-12-06 19:54:30,608 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 07:54:30" (3/3) ...
[2021-12-06 19:54:30,609 INFO  L111   eAbstractionObserver]: Analyzing ICFG Problem101_label03.c
[2021-12-06 19:54:30,613 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-12-06 19:54:30,613 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2021-12-06 19:54:30,669 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-12-06 19:54:30,674 INFO  L339      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, mLoopAccelerationTechnique=FAST_UPR
[2021-12-06 19:54:30,674 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2021-12-06 19:54:30,785 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)
[2021-12-06 19:54:31,367 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10099
[2021-12-06 19:54:31,367 INFO  L506         BasicCegarLoop]: Found error trace
[2021-12-06 19:54:31,373 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-12-06 19:54:31,375 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-12-06 19:54:31,379 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-12-06 19:54:31,384 INFO  L85        PathProgramCache]: Analyzing trace with hash 1371354794, now seen corresponding path program 1 times
[2021-12-06 19:54:31,390 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-12-06 19:54:31,390 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407326052]
[2021-12-06 19:54:31,393 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-12-06 19:54:31,394 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-12-06 19:54:33,214 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-12-06 19:54:52,003 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-12-06 19:54:52,003 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-12-06 19:54:52,004 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407326052]
[2021-12-06 19:54:52,004 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407326052] provided 1 perfect and 0 imperfect interpolant sequences
[2021-12-06 19:54:52,004 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-12-06 19:54:52,006 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-12-06 19:54:52,007 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083005366]
[2021-12-06 19:54:52,008 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-12-06 19:54:52,020 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-12-06 19:54:52,021 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-12-06 19:54:52,040 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-12-06 19:54:52,041 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-12-06 19:54:52,067 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 3366.0) internal successors, (10098), 2 states have internal predecessors, (10098), 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)
[2021-12-06 19:55:15,111 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-12-06 19:55:15,112 INFO  L93              Difference]: Finished difference Result 30716 states and 61145 transitions.
[2021-12-06 19:55:15,113 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-12-06 19:55:15,117 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3366.0) internal successors, (10098), 2 states have internal predecessors, (10098), 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 10098
[2021-12-06 19:55:15,133 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-12-06 19:55:15,251 INFO  L225             Difference]: With dead ends: 30716
[2021-12-06 19:55:15,252 INFO  L226             Difference]: Without dead ends: 20384
[2021-12-06 19:55:15,268 INFO  L932         BasicCegarLoop]: 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
[2021-12-06 19:55:15,271 INFO  L933         BasicCegarLoop]: 5117 mSDtfsCounter, 1986 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 33578 mSolverCounterSat, 7054 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1986 SdHoareTripleChecker+Valid, 5170 SdHoareTripleChecker+Invalid, 40632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7054 IncrementalHoareTripleChecker+Valid, 33578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.6s IncrementalHoareTripleChecker+Time
[2021-12-06 19:55:15,272 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [1986 Valid, 5170 Invalid, 40632 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7054 Valid, 33578 Invalid, 0 Unknown, 0 Unchecked, 22.6s Time]
[2021-12-06 19:55:15,309 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 20384 states.
[2021-12-06 19:55:15,658 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 20384 to 20384.
[2021-12-06 19:55:15,690 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 20384 states, 20383 states have (on average 1.7444929598194574) internal successors, (35558), 20383 states have internal predecessors, (35558), 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)
[2021-12-06 19:55:15,737 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20384 states to 20384 states and 35558 transitions.
[2021-12-06 19:55:15,738 INFO  L78                 Accepts]: Start accepts. Automaton has 20384 states and 35558 transitions. Word has length 10098
[2021-12-06 19:55:15,750 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-12-06 19:55:15,750 INFO  L470      AbstractCegarLoop]: Abstraction has 20384 states and 35558 transitions.
[2021-12-06 19:55:15,752 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3366.0) internal successors, (10098), 2 states have internal predecessors, (10098), 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)
[2021-12-06 19:55:15,752 INFO  L276                IsEmpty]: Start isEmpty. Operand 20384 states and 35558 transitions.
[2021-12-06 19:55:16,342 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10103
[2021-12-06 19:55:16,342 INFO  L506         BasicCegarLoop]: Found error trace
[2021-12-06 19:55:16,347 INFO  L514         BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-12-06 19:55:16,348 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-12-06 19:55:16,348 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-12-06 19:55:16,349 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-12-06 19:55:16,354 INFO  L85        PathProgramCache]: Analyzing trace with hash 131429074, now seen corresponding path program 1 times
[2021-12-06 19:55:16,354 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-12-06 19:55:16,354 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746252271]
[2021-12-06 19:55:16,356 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-12-06 19:55:16,356 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-12-06 19:55:17,166 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-12-06 19:55:28,202 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-12-06 19:55:28,202 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-12-06 19:55:28,202 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746252271]
[2021-12-06 19:55:28,202 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746252271] provided 1 perfect and 0 imperfect interpolant sequences
[2021-12-06 19:55:28,203 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-12-06 19:55:28,204 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-12-06 19:55:28,204 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349175202]
[2021-12-06 19:55:28,204 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-12-06 19:55:28,211 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-12-06 19:55:28,211 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-12-06 19:55:28,212 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-12-06 19:55:28,212 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-12-06 19:55:28,215 INFO  L87              Difference]: Start difference. First operand 20384 states and 35558 transitions. Second operand  has 3 states, 3 states have (on average 3367.3333333333335) internal successors, (10102), 2 states have internal predecessors, (10102), 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)
[2021-12-06 19:55:51,236 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-12-06 19:55:51,236 INFO  L93              Difference]: Finished difference Result 61146 states and 106669 transitions.
[2021-12-06 19:55:51,236 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-12-06 19:55:51,239 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3367.3333333333335) internal successors, (10102), 2 states have internal predecessors, (10102), 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 10102
[2021-12-06 19:55:51,239 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-12-06 19:55:51,304 INFO  L225             Difference]: With dead ends: 61146
[2021-12-06 19:55:51,305 INFO  L226             Difference]: Without dead ends: 40764
[2021-12-06 19:55:51,322 INFO  L932         BasicCegarLoop]: 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
[2021-12-06 19:55:51,323 INFO  L933         BasicCegarLoop]: 4835 mSDtfsCounter, 13865 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 28700 mSolverCounterSat, 11758 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13865 SdHoareTripleChecker+Valid, 4884 SdHoareTripleChecker+Invalid, 40458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11758 IncrementalHoareTripleChecker+Valid, 28700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.5s IncrementalHoareTripleChecker+Time
[2021-12-06 19:55:51,323 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [13865 Valid, 4884 Invalid, 40458 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11758 Valid, 28700 Invalid, 0 Unknown, 0 Unchecked, 22.5s Time]
[2021-12-06 19:55:51,361 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 40764 states.
[2021-12-06 19:55:51,735 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 40764 to 40764.
[2021-12-06 19:55:51,767 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 40764 states, 40763 states have (on average 1.5682113681524912) internal successors, (63925), 40763 states have internal predecessors, (63925), 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)
[2021-12-06 19:55:51,823 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 40764 states to 40764 states and 63925 transitions.
[2021-12-06 19:55:51,823 INFO  L78                 Accepts]: Start accepts. Automaton has 40764 states and 63925 transitions. Word has length 10102
[2021-12-06 19:55:51,825 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-12-06 19:55:51,825 INFO  L470      AbstractCegarLoop]: Abstraction has 40764 states and 63925 transitions.
[2021-12-06 19:55:51,827 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3367.3333333333335) internal successors, (10102), 2 states have internal predecessors, (10102), 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)
[2021-12-06 19:55:51,827 INFO  L276                IsEmpty]: Start isEmpty. Operand 40764 states and 63925 transitions.
[2021-12-06 19:55:52,479 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10104
[2021-12-06 19:55:52,480 INFO  L506         BasicCegarLoop]: Found error trace
[2021-12-06 19:55:52,484 INFO  L514         BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2021-12-06 19:55:52,485 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-12-06 19:55:52,485 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-12-06 19:55:52,486 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-12-06 19:55:52,489 INFO  L85        PathProgramCache]: Analyzing trace with hash 1795719794, now seen corresponding path program 1 times
[2021-12-06 19:55:52,489 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-12-06 19:55:52,489 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476322624]
[2021-12-06 19:55:52,490 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-12-06 19:55:52,490 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-12-06 19:55:53,284 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-12-06 19:56:03,047 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-12-06 19:56:03,048 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-12-06 19:56:03,048 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476322624]
[2021-12-06 19:56:03,048 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476322624] provided 1 perfect and 0 imperfect interpolant sequences
[2021-12-06 19:56:03,048 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-12-06 19:56:03,049 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-12-06 19:56:03,050 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780903711]
[2021-12-06 19:56:03,050 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-12-06 19:56:03,056 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-12-06 19:56:03,056 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-12-06 19:56:03,057 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-12-06 19:56:03,057 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-12-06 19:56:03,059 INFO  L87              Difference]: Start difference. First operand 40764 states and 63925 transitions. Second operand  has 3 states, 3 states have (on average 3367.6666666666665) internal successors, (10103), 2 states have internal predecessors, (10103), 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)
[2021-12-06 19:56:26,922 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-12-06 19:56:26,923 INFO  L93              Difference]: Finished difference Result 122286 states and 191770 transitions.
[2021-12-06 19:56:26,923 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-12-06 19:56:26,924 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3367.6666666666665) internal successors, (10103), 2 states have internal predecessors, (10103), 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
[2021-12-06 19:56:26,924 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-12-06 19:56:27,036 INFO  L225             Difference]: With dead ends: 122286
[2021-12-06 19:56:27,036 INFO  L226             Difference]: Without dead ends: 81524
[2021-12-06 19:56:27,059 INFO  L932         BasicCegarLoop]: 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
[2021-12-06 19:56:27,060 INFO  L933         BasicCegarLoop]: 6214 mSDtfsCounter, 12828 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 29360 mSolverCounterSat, 11677 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12828 SdHoareTripleChecker+Valid, 6263 SdHoareTripleChecker+Invalid, 41037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11677 IncrementalHoareTripleChecker+Valid, 29360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.2s IncrementalHoareTripleChecker+Time
[2021-12-06 19:56:27,060 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [12828 Valid, 6263 Invalid, 41037 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11677 Valid, 29360 Invalid, 0 Unknown, 0 Unchecked, 23.2s Time]
[2021-12-06 19:56:27,104 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 81524 states.
[2021-12-06 19:56:27,649 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 81524 to 81524.
[2021-12-06 19:56:27,704 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 81524 states, 81523 states have (on average 1.437373501956503) internal successors, (117179), 81523 states have internal predecessors, (117179), 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)
[2021-12-06 19:56:27,811 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 81524 states to 81524 states and 117179 transitions.
[2021-12-06 19:56:27,811 INFO  L78                 Accepts]: Start accepts. Automaton has 81524 states and 117179 transitions. Word has length 10103
[2021-12-06 19:56:27,813 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-12-06 19:56:27,813 INFO  L470      AbstractCegarLoop]: Abstraction has 81524 states and 117179 transitions.
[2021-12-06 19:56:27,814 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3367.6666666666665) internal successors, (10103), 2 states have internal predecessors, (10103), 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)
[2021-12-06 19:56:27,814 INFO  L276                IsEmpty]: Start isEmpty. Operand 81524 states and 117179 transitions.
[2021-12-06 19:56:28,517 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10110
[2021-12-06 19:56:28,518 INFO  L506         BasicCegarLoop]: Found error trace
[2021-12-06 19:56:28,522 INFO  L514         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-12-06 19:56:28,523 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2021-12-06 19:56:28,523 INFO  L402      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-12-06 19:56:28,523 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-12-06 19:56:28,526 INFO  L85        PathProgramCache]: Analyzing trace with hash -1461407645, now seen corresponding path program 1 times
[2021-12-06 19:56:28,526 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-12-06 19:56:28,526 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217031323]
[2021-12-06 19:56:28,527 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-12-06 19:56:28,527 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-12-06 19:56:29,366 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-12-06 19:56:38,148 INFO  L134       CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-12-06 19:56:38,148 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-12-06 19:56:38,148 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217031323]
[2021-12-06 19:56:38,148 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217031323] provided 1 perfect and 0 imperfect interpolant sequences
[2021-12-06 19:56:38,148 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-12-06 19:56:38,150 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-12-06 19:56:38,150 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554880635]
[2021-12-06 19:56:38,150 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-12-06 19:56:38,156 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-12-06 19:56:38,156 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-12-06 19:56:38,157 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-12-06 19:56:38,157 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-12-06 19:56:38,158 INFO  L87              Difference]: Start difference. First operand 81524 states and 117179 transitions. Second operand  has 3 states, 3 states have (on average 3369.6666666666665) internal successors, (10109), 2 states have internal predecessors, (10109), 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)
[2021-12-06 19:57:02,833 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-12-06 19:57:02,834 INFO  L93              Difference]: Finished difference Result 244566 states and 351532 transitions.
[2021-12-06 19:57:02,834 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-12-06 19:57:02,835 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3369.6666666666665) internal successors, (10109), 2 states have internal predecessors, (10109), 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 10109
[2021-12-06 19:57:02,835 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-12-06 19:57:02,982 INFO  L225             Difference]: With dead ends: 244566
[2021-12-06 19:57:02,982 INFO  L226             Difference]: Without dead ends: 163044
[2021-12-06 19:57:03,024 INFO  L932         BasicCegarLoop]: 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
[2021-12-06 19:57:03,026 INFO  L933         BasicCegarLoop]: 6168 mSDtfsCounter, 13400 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 27533 mSolverCounterSat, 13030 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13400 SdHoareTripleChecker+Valid, 6217 SdHoareTripleChecker+Invalid, 40563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13030 IncrementalHoareTripleChecker+Valid, 27533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.8s IncrementalHoareTripleChecker+Time
[2021-12-06 19:57:03,026 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [13400 Valid, 6217 Invalid, 40563 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13030 Valid, 27533 Invalid, 0 Unknown, 0 Unchecked, 23.8s Time]
[2021-12-06 19:57:03,113 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 163044 states.
[2021-12-06 19:57:04,118 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 163044 to 163044.
[2021-12-06 19:57:04,219 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 163044 states, 163043 states have (on average 1.3137699870586288) internal successors, (214201), 163043 states have internal predecessors, (214201), 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)
[2021-12-06 19:57:04,583 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 163044 states to 163044 states and 214201 transitions.
[2021-12-06 19:57:04,584 INFO  L78                 Accepts]: Start accepts. Automaton has 163044 states and 214201 transitions. Word has length 10109
[2021-12-06 19:57:04,585 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-12-06 19:57:04,586 INFO  L470      AbstractCegarLoop]: Abstraction has 163044 states and 214201 transitions.
[2021-12-06 19:57:04,587 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3369.6666666666665) internal successors, (10109), 2 states have internal predecessors, (10109), 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)
[2021-12-06 19:57:04,587 INFO  L276                IsEmpty]: Start isEmpty. Operand 163044 states and 214201 transitions.
[2021-12-06 19:57:05,369 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10120
[2021-12-06 19:57:05,369 INFO  L506         BasicCegarLoop]: Found error trace
[2021-12-06 19:57:05,374 INFO  L514         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-12-06 19:57:05,374 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2021-12-06 19:57:05,374 INFO  L402      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-12-06 19:57:05,375 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-12-06 19:57:05,378 INFO  L85        PathProgramCache]: Analyzing trace with hash -803216822, now seen corresponding path program 1 times
[2021-12-06 19:57:05,378 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-12-06 19:57:05,378 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679459104]
[2021-12-06 19:57:05,379 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-12-06 19:57:05,379 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-12-06 19:57:06,240 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-12-06 19:57:15,216 INFO  L134       CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-12-06 19:57:15,217 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-12-06 19:57:15,217 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679459104]
[2021-12-06 19:57:15,217 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679459104] provided 1 perfect and 0 imperfect interpolant sequences
[2021-12-06 19:57:15,217 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-12-06 19:57:15,218 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-12-06 19:57:15,219 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585794318]
[2021-12-06 19:57:15,219 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-12-06 19:57:15,227 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-12-06 19:57:15,227 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-12-06 19:57:15,227 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-12-06 19:57:15,227 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-12-06 19:57:15,230 INFO  L87              Difference]: Start difference. First operand 163044 states and 214201 transitions. Second operand  has 3 states, 3 states have (on average 3373.0) internal successors, (10119), 2 states have internal predecessors, (10119), 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)
[2021-12-06 19:57:37,433 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-12-06 19:57:37,433 INFO  L93              Difference]: Finished difference Result 407606 states and 527576 transitions.
[2021-12-06 19:57:37,434 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-12-06 19:57:37,435 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3373.0) internal successors, (10119), 2 states have internal predecessors, (10119), 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 10119
[2021-12-06 19:57:37,435 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-12-06 19:57:37,673 INFO  L225             Difference]: With dead ends: 407606
[2021-12-06 19:57:37,674 INFO  L226             Difference]: Without dead ends: 244564
[2021-12-06 19:57:37,728 INFO  L932         BasicCegarLoop]: 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
[2021-12-06 19:57:37,729 INFO  L933         BasicCegarLoop]: 8007 mSDtfsCounter, 11128 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 28480 mSolverCounterSat, 7491 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11128 SdHoareTripleChecker+Valid, 8056 SdHoareTripleChecker+Invalid, 35971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7491 IncrementalHoareTripleChecker+Valid, 28480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.1s IncrementalHoareTripleChecker+Time
[2021-12-06 19:57:37,730 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [11128 Valid, 8056 Invalid, 35971 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7491 Valid, 28480 Invalid, 0 Unknown, 0 Unchecked, 21.1s Time]
[2021-12-06 19:57:37,870 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 244564 states.
[2021-12-06 19:57:39,635 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 244564 to 244564.
[2021-12-06 19:57:39,724 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 244564 states, 244563 states have (on average 1.243888077918573) internal successors, (304209), 244563 states have internal predecessors, (304209), 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)
[2021-12-06 19:57:40,015 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 244564 states to 244564 states and 304209 transitions.
[2021-12-06 19:57:40,015 INFO  L78                 Accepts]: Start accepts. Automaton has 244564 states and 304209 transitions. Word has length 10119
[2021-12-06 19:57:40,017 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-12-06 19:57:40,017 INFO  L470      AbstractCegarLoop]: Abstraction has 244564 states and 304209 transitions.
[2021-12-06 19:57:40,018 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3373.0) internal successors, (10119), 2 states have internal predecessors, (10119), 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)
[2021-12-06 19:57:40,019 INFO  L276                IsEmpty]: Start isEmpty. Operand 244564 states and 304209 transitions.
[2021-12-06 19:57:40,911 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10149
[2021-12-06 19:57:40,911 INFO  L506         BasicCegarLoop]: Found error trace
[2021-12-06 19:57:40,914 INFO  L514         BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2021-12-06 19:57:40,915 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2021-12-06 19:57:40,915 INFO  L402      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-12-06 19:57:40,915 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-12-06 19:57:40,917 INFO  L85        PathProgramCache]: Analyzing trace with hash 2142466751, now seen corresponding path program 1 times
[2021-12-06 19:57:40,918 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-12-06 19:57:40,918 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247886175]
[2021-12-06 19:57:40,918 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-12-06 19:57:40,919 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-12-06 19:57:41,698 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-12-06 19:57:51,900 INFO  L134       CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-12-06 19:57:51,901 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-12-06 19:57:51,901 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247886175]
[2021-12-06 19:57:51,901 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247886175] provided 1 perfect and 0 imperfect interpolant sequences
[2021-12-06 19:57:51,901 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-12-06 19:57:51,903 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-12-06 19:57:51,903 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336170838]
[2021-12-06 19:57:51,903 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-12-06 19:57:51,911 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-12-06 19:57:51,911 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-12-06 19:57:51,912 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-12-06 19:57:51,912 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-12-06 19:57:51,914 INFO  L87              Difference]: Start difference. First operand 244564 states and 304209 transitions. Second operand  has 3 states, 3 states have (on average 3382.6666666666665) internal successors, (10148), 2 states have internal predecessors, (10148), 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)
[2021-12-06 19:58:17,156 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-12-06 19:58:17,156 INFO  L93              Difference]: Finished difference Result 733686 states and 912622 transitions.
[2021-12-06 19:58:17,156 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-12-06 19:58:17,158 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3382.6666666666665) internal successors, (10148), 2 states have internal predecessors, (10148), 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 10148
[2021-12-06 19:58:17,158 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-12-06 19:58:17,689 INFO  L225             Difference]: With dead ends: 733686
[2021-12-06 19:58:17,689 INFO  L226             Difference]: Without dead ends: 489124
[2021-12-06 19:58:17,779 INFO  L932         BasicCegarLoop]: 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
[2021-12-06 19:58:17,780 INFO  L933         BasicCegarLoop]: 7237 mSDtfsCounter, 11831 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 30502 mSolverCounterSat, 11086 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11831 SdHoareTripleChecker+Valid, 7286 SdHoareTripleChecker+Invalid, 41588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11086 IncrementalHoareTripleChecker+Valid, 30502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.5s IncrementalHoareTripleChecker+Time
[2021-12-06 19:58:17,780 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [11831 Valid, 7286 Invalid, 41588 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11086 Valid, 30502 Invalid, 0 Unknown, 0 Unchecked, 23.5s Time]
[2021-12-06 19:58:18,027 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 489124 states.
[2021-12-06 19:58:21,661 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 489124 to 489124.
[2021-12-06 19:58:21,833 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 489124 states, 489123 states have (on average 1.1869468415919922) internal successors, (580563), 489123 states have internal predecessors, (580563), 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)
[2021-12-06 19:58:22,575 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 489124 states to 489124 states and 580563 transitions.
[2021-12-06 19:58:22,575 INFO  L78                 Accepts]: Start accepts. Automaton has 489124 states and 580563 transitions. Word has length 10148
[2021-12-06 19:58:22,576 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-12-06 19:58:22,576 INFO  L470      AbstractCegarLoop]: Abstraction has 489124 states and 580563 transitions.
[2021-12-06 19:58:22,577 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3382.6666666666665) internal successors, (10148), 2 states have internal predecessors, (10148), 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)
[2021-12-06 19:58:22,577 INFO  L276                IsEmpty]: Start isEmpty. Operand 489124 states and 580563 transitions.
[2021-12-06 19:58:23,641 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10239
[2021-12-06 19:58:23,642 INFO  L506         BasicCegarLoop]: Found error trace
[2021-12-06 19:58:23,643 INFO  L514         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-12-06 19:58:23,644 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2021-12-06 19:58:23,644 INFO  L402      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-12-06 19:58:23,644 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-12-06 19:58:23,645 INFO  L85        PathProgramCache]: Analyzing trace with hash 2146438142, now seen corresponding path program 1 times
[2021-12-06 19:58:23,645 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-12-06 19:58:23,645 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887265518]
[2021-12-06 19:58:23,646 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-12-06 19:58:23,646 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-12-06 19:58:24,440 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-12-06 19:58:34,732 INFO  L134       CoverageAnalysis]: Checked inductivity of 139 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-12-06 19:58:34,732 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-12-06 19:58:34,732 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887265518]
[2021-12-06 19:58:34,732 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887265518] provided 1 perfect and 0 imperfect interpolant sequences
[2021-12-06 19:58:34,733 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-12-06 19:58:34,734 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-12-06 19:58:34,734 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016775924]
[2021-12-06 19:58:34,734 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-12-06 19:58:34,739 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-12-06 19:58:34,739 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-12-06 19:58:34,739 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-12-06 19:58:34,739 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-12-06 19:58:34,741 INFO  L87              Difference]: Start difference. First operand 489124 states and 580563 transitions. Second operand  has 3 states, 3 states have (on average 3412.6666666666665) internal successors, (10238), 2 states have internal predecessors, (10238), 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)
[2021-12-06 19:59:01,689 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-12-06 19:59:01,689 INFO  L93              Difference]: Finished difference Result 1467366 states and 1741684 transitions.
[2021-12-06 19:59:01,689 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-12-06 19:59:01,690 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 3412.6666666666665) internal successors, (10238), 2 states have internal predecessors, (10238), 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 10238
[2021-12-06 19:59:01,690 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-12-06 19:59:02,764 INFO  L225             Difference]: With dead ends: 1467366
[2021-12-06 19:59:02,764 INFO  L226             Difference]: Without dead ends: 978244
[2021-12-06 19:59:02,921 INFO  L932         BasicCegarLoop]: 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
[2021-12-06 19:59:02,921 INFO  L933         BasicCegarLoop]: 6466 mSDtfsCounter, 12329 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 30671 mSolverCounterSat, 10501 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12329 SdHoareTripleChecker+Valid, 6515 SdHoareTripleChecker+Invalid, 41172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10501 IncrementalHoareTripleChecker+Valid, 30671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.4s IncrementalHoareTripleChecker+Time
[2021-12-06 19:59:02,921 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [12329 Valid, 6515 Invalid, 41172 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10501 Valid, 30671 Invalid, 0 Unknown, 0 Unchecked, 23.4s Time]
[2021-12-06 19:59:03,610 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 978244 states.
[2021-12-06 19:59:10,931 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 978244 to 978244.
[2021-12-06 19:59:11,273 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 978244 states, 978243 states have (on average 1.1423634005047825) internal successors, (1117509), 978243 states have internal predecessors, (1117509), 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)
[2021-12-06 19:59:12,937 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 978244 states to 978244 states and 1117509 transitions.
[2021-12-06 19:59:12,937 INFO  L78                 Accepts]: Start accepts. Automaton has 978244 states and 1117509 transitions. Word has length 10238
[2021-12-06 19:59:12,938 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-12-06 19:59:12,938 INFO  L470      AbstractCegarLoop]: Abstraction has 978244 states and 1117509 transitions.
[2021-12-06 19:59:12,940 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 3412.6666666666665) internal successors, (10238), 2 states have internal predecessors, (10238), 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)
[2021-12-06 19:59:12,940 INFO  L276                IsEmpty]: Start isEmpty. Operand 978244 states and 1117509 transitions.
[2021-12-06 19:59:14,626 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10435
[2021-12-06 19:59:14,626 INFO  L506         BasicCegarLoop]: Found error trace
[2021-12-06 19:59:14,629 INFO  L514         BasicCegarLoop]: trace histogram [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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-12-06 19:59:14,629 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2021-12-06 19:59:14,629 INFO  L402      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-12-06 19:59:14,630 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-12-06 19:59:14,631 INFO  L85        PathProgramCache]: Analyzing trace with hash -1720075899, now seen corresponding path program 1 times
[2021-12-06 19:59:14,632 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-12-06 19:59:14,632 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859905949]
[2021-12-06 19:59:14,632 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-12-06 19:59:14,633 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-12-06 19:59:15,472 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-12-06 19:59:26,215 INFO  L134       CoverageAnalysis]: Checked inductivity of 383 backedges. 333 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked.
[2021-12-06 19:59:26,215 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-12-06 19:59:26,215 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859905949]
[2021-12-06 19:59:26,215 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859905949] provided 1 perfect and 0 imperfect interpolant sequences
[2021-12-06 19:59:26,215 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-12-06 19:59:26,217 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-12-06 19:59:26,217 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989170223]
[2021-12-06 19:59:26,217 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-12-06 19:59:26,227 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-12-06 19:59:26,227 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-12-06 19:59:26,228 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-12-06 19:59:26,228 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2021-12-06 19:59:26,230 INFO  L87              Difference]: Start difference. First operand 978244 states and 1117509 transitions. Second operand  has 6 states, 6 states have (on average 1730.8333333333333) internal successors, (10385), 5 states have internal predecessors, (10385), 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)
[2021-12-06 20:00:09,569 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-12-06 20:00:09,570 INFO  L93              Difference]: Finished difference Result 2960480 states and 3381292 transitions.
[2021-12-06 20:00:09,570 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2021-12-06 20:00:09,571 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 1730.8333333333333) internal successors, (10385), 5 states have internal predecessors, (10385), 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 10434
[2021-12-06 20:00:09,572 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-12-06 20:00:12,092 INFO  L225             Difference]: With dead ends: 2960480
[2021-12-06 20:00:12,093 INFO  L226             Difference]: Without dead ends: 1982238
[2021-12-06 20:00:12,659 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2021-12-06 20:00:12,660 INFO  L933         BasicCegarLoop]: 9617 mSDtfsCounter, 30980 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 56814 mSolverCounterSat, 34797 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30980 SdHoareTripleChecker+Valid, 9811 SdHoareTripleChecker+Invalid, 91611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 34797 IncrementalHoareTripleChecker+Valid, 56814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.1s IncrementalHoareTripleChecker+Time
[2021-12-06 20:00:12,660 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [30980 Valid, 9811 Invalid, 91611 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [34797 Valid, 56814 Invalid, 0 Unknown, 0 Unchecked, 36.1s Time]
[2021-12-06 20:00:13,955 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1982238 states.
[2021-12-06 20:00:29,801 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1982238 to 1956484.
[2021-12-06 20:00:30,923 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1956484 states, 1956483 states have (on average 1.0882174800394382) internal successors, (2129079), 1956483 states have internal predecessors, (2129079), 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)
[2021-12-06 20:00:34,211 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1956484 states to 1956484 states and 2129079 transitions.
[2021-12-06 20:00:34,212 INFO  L78                 Accepts]: Start accepts. Automaton has 1956484 states and 2129079 transitions. Word has length 10434
[2021-12-06 20:00:34,212 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-12-06 20:00:34,213 INFO  L470      AbstractCegarLoop]: Abstraction has 1956484 states and 2129079 transitions.
[2021-12-06 20:00:34,214 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 1730.8333333333333) internal successors, (10385), 5 states have internal predecessors, (10385), 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)
[2021-12-06 20:00:34,214 INFO  L276                IsEmpty]: Start isEmpty. Operand 1956484 states and 2129079 transitions.
[2021-12-06 20:00:37,075 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10868
[2021-12-06 20:00:37,075 INFO  L506         BasicCegarLoop]: Found error trace
[2021-12-06 20:00:37,077 INFO  L514         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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[2021-12-06 20:00:37,078 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2021-12-06 20:00:37,078 INFO  L402      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-12-06 20:00:37,078 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-12-06 20:00:37,079 INFO  L85        PathProgramCache]: Analyzing trace with hash 530647815, now seen corresponding path program 1 times
[2021-12-06 20:00:37,079 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-12-06 20:00:37,079 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920694353]
[2021-12-06 20:00:37,080 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-12-06 20:00:37,080 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-12-06 20:00:37,978 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat