./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem05_label33.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 2329fc70
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc366efa-0480-40be-a79a-f88a9a2e3573/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc366efa-0480-40be-a79a-f88a9a2e3573/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc366efa-0480-40be-a79a-f88a9a2e3573/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc366efa-0480-40be-a79a-f88a9a2e3573/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem05_label33.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc366efa-0480-40be-a79a-f88a9a2e3573/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc366efa-0480-40be-a79a-f88a9a2e3573/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 38b2aeb199b2b6870ba84a3604aff95db9373ea614c0c9f970a275f134ff2c01
--- Real Ultimate output ---
[0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset.
This is Ultimate 0.2.2-dev-2329fc7
[2022-12-13 11:56:56,086 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-12-13 11:56:56,088 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-12-13 11:56:56,111 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-12-13 11:56:56,112 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-12-13 11:56:56,113 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-12-13 11:56:56,115 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-12-13 11:56:56,117 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-12-13 11:56:56,120 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-12-13 11:56:56,121 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-12-13 11:56:56,122 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2022-12-13 11:56:56,124 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-12-13 11:56:56,125 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-12-13 11:56:56,126 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-12-13 11:56:56,127 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-12-13 11:56:56,129 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-12-13 11:56:56,130 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-12-13 11:56:56,131 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-12-13 11:56:56,134 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-12-13 11:56:56,137 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-12-13 11:56:56,139 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-12-13 11:56:56,141 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-12-13 11:56:56,142 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-12-13 11:56:56,144 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-12-13 11:56:56,150 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-12-13 11:56:56,150 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-12-13 11:56:56,151 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-12-13 11:56:56,152 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-12-13 11:56:56,153 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-12-13 11:56:56,154 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-12-13 11:56:56,155 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-12-13 11:56:56,156 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-12-13 11:56:56,156 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-12-13 11:56:56,157 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-12-13 11:56:56,158 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-12-13 11:56:56,159 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-12-13 11:56:56,159 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-12-13 11:56:56,159 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-12-13 11:56:56,160 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2022-12-13 11:56:56,160 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2022-12-13 11:56:56,161 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-12-13 11:56:56,162 INFO  L101        SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc366efa-0480-40be-a79a-f88a9a2e3573/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf
[2022-12-13 11:56:56,192 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-12-13 11:56:56,192 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-12-13 11:56:56,192 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-12-13 11:56:56,193 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-12-13 11:56:56,208 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-12-13 11:56:56,208 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-12-13 11:56:56,209 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-12-13 11:56:56,209 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-12-13 11:56:56,209 INFO  L138        SettingsManager]:  * Use SBE=true
[2022-12-13 11:56:56,210 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-12-13 11:56:56,210 INFO  L138        SettingsManager]:  * sizeof long=4
[2022-12-13 11:56:56,210 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-12-13 11:56:56,210 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2022-12-13 11:56:56,210 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-12-13 11:56:56,210 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-12-13 11:56:56,211 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-12-13 11:56:56,211 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-12-13 11:56:56,211 INFO  L138        SettingsManager]:  * sizeof long double=12
[2022-12-13 11:56:56,211 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-12-13 11:56:56,211 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-12-13 11:56:56,211 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-12-13 11:56:56,212 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-12-13 11:56:56,212 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2022-12-13 11:56:56,212 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-12-13 11:56:56,212 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-12-13 11:56:56,212 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-12-13 11:56:56,212 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-12-13 11:56:56,213 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-12-13 11:56:56,213 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2022-12-13 11:56:56,213 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-12-13 11:56:56,213 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2022-12-13 11:56:56,213 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-12-13 11:56:56,213 INFO  L138        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2022-12-13 11:56:56,213 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2022-12-13 11:56:56,214 INFO  L138        SettingsManager]:  * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2022-12-13 11:56:56,214 INFO  L138        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc366efa-0480-40be-a79a-f88a9a2e3573/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc366efa-0480-40be-a79a-f88a9a2e3573/bin/uautomizer-uyxdKDjOR8
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 38b2aeb199b2b6870ba84a3604aff95db9373ea614c0c9f970a275f134ff2c01
[2022-12-13 11:56:56,404 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-12-13 11:56:56,423 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-12-13 11:56:56,425 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-12-13 11:56:56,426 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-12-13 11:56:56,427 INFO  L275        PluginConnector]: CDTParser initialized
[2022-12-13 11:56:56,428 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc366efa-0480-40be-a79a-f88a9a2e3573/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/eca-rers2012/Problem05_label33.c
[2022-12-13 11:56:58,978 INFO  L500              CDTParser]: Created temporary CDT project at NULL
[2022-12-13 11:56:59,401 INFO  L351              CDTParser]: Found 1 translation units.
[2022-12-13 11:56:59,402 INFO  L172              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc366efa-0480-40be-a79a-f88a9a2e3573/sv-benchmarks/c/eca-rers2012/Problem05_label33.c
[2022-12-13 11:56:59,434 INFO  L394              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc366efa-0480-40be-a79a-f88a9a2e3573/bin/uautomizer-uyxdKDjOR8/data/789be37f5/fd9df3eba2eb46348e0c966bc68aa33b/FLAGcd87923af
[2022-12-13 11:56:59,554 INFO  L402              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc366efa-0480-40be-a79a-f88a9a2e3573/bin/uautomizer-uyxdKDjOR8/data/789be37f5/fd9df3eba2eb46348e0c966bc68aa33b
[2022-12-13 11:56:59,556 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-12-13 11:56:59,557 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2022-12-13 11:56:59,558 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-12-13 11:56:59,558 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-12-13 11:56:59,561 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-12-13 11:56:59,562 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:56:59" (1/1) ...
[2022-12-13 11:56:59,562 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11ed20cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:56:59, skipping insertion in model container
[2022-12-13 11:56:59,562 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:56:59" (1/1) ...
[2022-12-13 11:56:59,568 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-12-13 11:56:59,735 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-12-13 11:57:01,078 WARN  L237   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc366efa-0480-40be-a79a-f88a9a2e3573/sv-benchmarks/c/eca-rers2012/Problem05_label33.c[375230,375243]
[2022-12-13 11:57:01,097 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-12-13 11:57:01,104 INFO  L203         MainTranslator]: Completed pre-run
[2022-12-13 11:57:01,945 WARN  L237   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc366efa-0480-40be-a79a-f88a9a2e3573/sv-benchmarks/c/eca-rers2012/Problem05_label33.c[375230,375243]
[2022-12-13 11:57:01,955 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-12-13 11:57:02,028 INFO  L208         MainTranslator]: Completed translation
[2022-12-13 11:57:02,028 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:57:02 WrapperNode
[2022-12-13 11:57:02,028 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-12-13 11:57:02,029 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-12-13 11:57:02,029 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-12-13 11:57:02,029 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-12-13 11:57:02,035 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:57:02" (1/1) ...
[2022-12-13 11:57:02,098 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:57:02" (1/1) ...
[2022-12-13 11:57:02,340 INFO  L138                Inliner]: procedures = 21, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 12346
[2022-12-13 11:57:02,340 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-12-13 11:57:02,341 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-12-13 11:57:02,341 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-12-13 11:57:02,341 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-12-13 11:57:02,349 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:57:02" (1/1) ...
[2022-12-13 11:57:02,349 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:57:02" (1/1) ...
[2022-12-13 11:57:02,439 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:57:02" (1/1) ...
[2022-12-13 11:57:02,439 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:57:02" (1/1) ...
[2022-12-13 11:57:02,591 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:57:02" (1/1) ...
[2022-12-13 11:57:02,631 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:57:02" (1/1) ...
[2022-12-13 11:57:02,650 INFO  L185        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:57:02" (1/1) ...
[2022-12-13 11:57:02,665 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:57:02" (1/1) ...
[2022-12-13 11:57:02,710 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-12-13 11:57:02,711 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-12-13 11:57:02,711 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-12-13 11:57:02,711 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-12-13 11:57:02,712 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:57:02" (1/1) ...
[2022-12-13 11:57:02,718 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-12-13 11:57:02,727 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc366efa-0480-40be-a79a-f88a9a2e3573/bin/uautomizer-uyxdKDjOR8/z3
[2022-12-13 11:57:02,738 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc366efa-0480-40be-a79a-f88a9a2e3573/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-12-13 11:57:02,740 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc366efa-0480-40be-a79a-f88a9a2e3573/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-12-13 11:57:02,773 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-12-13 11:57:02,773 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2022-12-13 11:57:02,773 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-12-13 11:57:02,774 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-12-13 11:57:02,843 INFO  L235             CfgBuilder]: Building ICFG
[2022-12-13 11:57:02,845 INFO  L261             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-12-13 11:57:08,496 INFO  L276             CfgBuilder]: Performing block encoding
[2022-12-13 11:57:08,524 INFO  L295             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-12-13 11:57:08,524 INFO  L300             CfgBuilder]: Removed 1 assume(true) statements.
[2022-12-13 11:57:08,531 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:57:08 BoogieIcfgContainer
[2022-12-13 11:57:08,531 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-12-13 11:57:08,533 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-12-13 11:57:08,533 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-12-13 11:57:08,536 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-12-13 11:57:08,536 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 11:56:59" (1/3) ...
[2022-12-13 11:57:08,537 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a5c7731 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:57:08, skipping insertion in model container
[2022-12-13 11:57:08,537 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:57:02" (2/3) ...
[2022-12-13 11:57:08,537 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a5c7731 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:57:08, skipping insertion in model container
[2022-12-13 11:57:08,537 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:57:08" (3/3) ...
[2022-12-13 11:57:08,538 INFO  L112   eAbstractionObserver]: Analyzing ICFG Problem05_label33.c
[2022-12-13 11:57:08,554 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-12-13 11:57:08,554 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-12-13 11:57:08,641 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-12-13 11:57:08,645 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@15326a5a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2022-12-13 11:57:08,645 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2022-12-13 11:57:08,653 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 2185 states, 2183 states have (on average 1.8708199725148877) internal successors, (4084), 2184 states have internal predecessors, (4084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 11:57:08,728 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1641
[2022-12-13 11:57:08,728 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 11:57:08,729 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-13 11:57:08,730 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 11:57:08,733 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 11:57:08,734 INFO  L85        PathProgramCache]: Analyzing trace with hash 2042642978, now seen corresponding path program 1 times
[2022-12-13 11:57:08,740 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 11:57:08,740 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188949639]
[2022-12-13 11:57:08,741 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 11:57:08,741 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 11:57:09,222 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 11:57:11,586 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 11:57:11,586 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 11:57:11,586 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188949639]
[2022-12-13 11:57:11,587 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188949639] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 11:57:11,587 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 11:57:11,587 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-13 11:57:11,588 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422613093]
[2022-12-13 11:57:11,589 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 11:57:11,594 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 11:57:11,594 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 11:57:11,616 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 11:57:11,617 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 11:57:11,622 INFO  L87              Difference]: Start difference. First operand  has 2185 states, 2183 states have (on average 1.8708199725148877) internal successors, (4084), 2184 states have internal predecessors, (4084), 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 546.6666666666666) internal successors, (1640), 2 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 11:57:16,677 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 11:57:16,677 INFO  L93              Difference]: Finished difference Result 6156 states and 11651 transitions.
[2022-12-13 11:57:16,678 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 11:57:16,679 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 546.6666666666666) internal successors, (1640), 2 states have internal predecessors, (1640), 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 1640
[2022-12-13 11:57:16,682 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 11:57:16,701 INFO  L225             Difference]: With dead ends: 6156
[2022-12-13 11:57:16,701 INFO  L226             Difference]: Without dead ends: 3907
[2022-12-13 11:57:16,706 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 11:57:16,708 INFO  L413           NwaCegarLoop]: 1759 mSDtfsCounter, 336 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 5604 mSolverCounterSat, 1469 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 2072 SdHoareTripleChecker+Invalid, 7073 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1469 IncrementalHoareTripleChecker+Valid, 5604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time
[2022-12-13 11:57:16,709 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 2072 Invalid, 7073 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1469 Valid, 5604 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time]
[2022-12-13 11:57:16,725 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3907 states.
[2022-12-13 11:57:16,801 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3907 to 3900.
[2022-12-13 11:57:16,807 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3900 states, 3899 states have (on average 1.6196460630931009) internal successors, (6315), 3899 states have internal predecessors, (6315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 11:57:16,813 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3900 states to 3900 states and 6315 transitions.
[2022-12-13 11:57:16,815 INFO  L78                 Accepts]: Start accepts. Automaton has 3900 states and 6315 transitions. Word has length 1640
[2022-12-13 11:57:16,816 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 11:57:16,817 INFO  L495      AbstractCegarLoop]: Abstraction has 3900 states and 6315 transitions.
[2022-12-13 11:57:16,817 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 546.6666666666666) internal successors, (1640), 2 states have internal predecessors, (1640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 11:57:16,817 INFO  L276                IsEmpty]: Start isEmpty. Operand 3900 states and 6315 transitions.
[2022-12-13 11:57:16,858 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1646
[2022-12-13 11:57:16,858 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 11:57:16,859 INFO  L195           NwaCegarLoop]: 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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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-13 11:57:16,859 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-12-13 11:57:16,859 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 11:57:16,860 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 11:57:16,860 INFO  L85        PathProgramCache]: Analyzing trace with hash -1471674050, now seen corresponding path program 1 times
[2022-12-13 11:57:16,860 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 11:57:16,860 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587112148]
[2022-12-13 11:57:16,861 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 11:57:16,861 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 11:57:17,025 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 11:57:18,284 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 11:57:18,284 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 11:57:18,284 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587112148]
[2022-12-13 11:57:18,284 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587112148] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 11:57:18,284 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 11:57:18,285 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-13 11:57:18,285 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150991210]
[2022-12-13 11:57:18,285 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 11:57:18,288 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 11:57:18,288 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 11:57:18,290 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 11:57:18,290 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 11:57:18,291 INFO  L87              Difference]: Start difference. First operand 3900 states and 6315 transitions. Second operand  has 3 states, 3 states have (on average 548.3333333333334) internal successors, (1645), 2 states have internal predecessors, (1645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 11:57:23,839 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 11:57:23,840 INFO  L93              Difference]: Finished difference Result 11343 states and 18473 transitions.
[2022-12-13 11:57:23,840 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 11:57:23,841 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 548.3333333333334) internal successors, (1645), 2 states have internal predecessors, (1645), 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 1645
[2022-12-13 11:57:23,841 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 11:57:23,864 INFO  L225             Difference]: With dead ends: 11343
[2022-12-13 11:57:23,865 INFO  L226             Difference]: Without dead ends: 7445
[2022-12-13 11:57:23,870 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 11:57:23,871 INFO  L413           NwaCegarLoop]: 1349 mSDtfsCounter, 1994 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 5241 mSolverCounterSat, 2351 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1994 SdHoareTripleChecker+Valid, 1570 SdHoareTripleChecker+Invalid, 7592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2351 IncrementalHoareTripleChecker+Valid, 5241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time
[2022-12-13 11:57:23,872 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1994 Valid, 1570 Invalid, 7592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2351 Valid, 5241 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time]
[2022-12-13 11:57:23,880 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7445 states.
[2022-12-13 11:57:24,016 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7445 to 7361.
[2022-12-13 11:57:24,030 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7361 states, 7360 states have (on average 1.5039402173913043) internal successors, (11069), 7360 states have internal predecessors, (11069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 11:57:24,050 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7361 states to 7361 states and 11069 transitions.
[2022-12-13 11:57:24,051 INFO  L78                 Accepts]: Start accepts. Automaton has 7361 states and 11069 transitions. Word has length 1645
[2022-12-13 11:57:24,051 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 11:57:24,051 INFO  L495      AbstractCegarLoop]: Abstraction has 7361 states and 11069 transitions.
[2022-12-13 11:57:24,052 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 548.3333333333334) internal successors, (1645), 2 states have internal predecessors, (1645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 11:57:24,053 INFO  L276                IsEmpty]: Start isEmpty. Operand 7361 states and 11069 transitions.
[2022-12-13 11:57:24,104 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1656
[2022-12-13 11:57:24,105 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 11:57:24,106 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-13 11:57:24,106 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-12-13 11:57:24,106 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 11:57:24,107 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 11:57:24,108 INFO  L85        PathProgramCache]: Analyzing trace with hash -2016955861, now seen corresponding path program 1 times
[2022-12-13 11:57:24,108 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 11:57:24,108 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823303839]
[2022-12-13 11:57:24,109 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 11:57:24,109 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 11:57:24,297 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 11:57:25,319 INFO  L134       CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 11:57:25,320 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 11:57:25,320 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823303839]
[2022-12-13 11:57:25,320 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823303839] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 11:57:25,320 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 11:57:25,321 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-13 11:57:25,321 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369792352]
[2022-12-13 11:57:25,321 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 11:57:25,323 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 11:57:25,324 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 11:57:25,325 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 11:57:25,325 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 11:57:25,325 INFO  L87              Difference]: Start difference. First operand 7361 states and 11069 transitions. Second operand  has 3 states, 3 states have (on average 551.6666666666666) internal successors, (1655), 3 states have internal predecessors, (1655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 11:57:30,522 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 11:57:30,522 INFO  L93              Difference]: Finished difference Result 18191 states and 26962 transitions.
[2022-12-13 11:57:30,522 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 11:57:30,523 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 551.6666666666666) internal successors, (1655), 3 states have internal predecessors, (1655), 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 1655
[2022-12-13 11:57:30,523 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 11:57:30,541 INFO  L225             Difference]: With dead ends: 18191
[2022-12-13 11:57:30,541 INFO  L226             Difference]: Without dead ends: 10832
[2022-12-13 11:57:30,546 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 11:57:30,547 INFO  L413           NwaCegarLoop]: 3610 mSDtfsCounter, 1872 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 5287 mSolverCounterSat, 1356 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1872 SdHoareTripleChecker+Valid, 3854 SdHoareTripleChecker+Invalid, 6643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1356 IncrementalHoareTripleChecker+Valid, 5287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time
[2022-12-13 11:57:30,548 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1872 Valid, 3854 Invalid, 6643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1356 Valid, 5287 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time]
[2022-12-13 11:57:30,561 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10832 states.
[2022-12-13 11:57:30,700 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10832 to 10765.
[2022-12-13 11:57:30,718 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 10765 states, 10764 states have (on average 1.4265143069490895) internal successors, (15355), 10764 states have internal predecessors, (15355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 11:57:30,740 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 10765 states to 10765 states and 15355 transitions.
[2022-12-13 11:57:30,740 INFO  L78                 Accepts]: Start accepts. Automaton has 10765 states and 15355 transitions. Word has length 1655
[2022-12-13 11:57:30,741 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 11:57:30,741 INFO  L495      AbstractCegarLoop]: Abstraction has 10765 states and 15355 transitions.
[2022-12-13 11:57:30,742 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 551.6666666666666) internal successors, (1655), 3 states have internal predecessors, (1655), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 11:57:30,742 INFO  L276                IsEmpty]: Start isEmpty. Operand 10765 states and 15355 transitions.
[2022-12-13 11:57:30,777 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1670
[2022-12-13 11:57:30,778 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 11:57:30,779 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-13 11:57:30,779 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-12-13 11:57:30,779 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 11:57:30,779 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 11:57:30,780 INFO  L85        PathProgramCache]: Analyzing trace with hash 1667656164, now seen corresponding path program 1 times
[2022-12-13 11:57:30,780 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 11:57:30,780 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269043373]
[2022-12-13 11:57:30,781 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 11:57:30,781 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 11:57:31,012 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 11:57:31,912 INFO  L134       CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 11:57:31,913 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 11:57:31,913 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269043373]
[2022-12-13 11:57:31,913 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269043373] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 11:57:31,913 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 11:57:31,913 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-13 11:57:31,913 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509393208]
[2022-12-13 11:57:31,914 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 11:57:31,916 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 11:57:31,916 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 11:57:31,917 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 11:57:31,917 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 11:57:31,918 INFO  L87              Difference]: Start difference. First operand 10765 states and 15355 transitions. Second operand  has 3 states, 3 states have (on average 556.3333333333334) internal successors, (1669), 3 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 11:57:36,976 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 11:57:36,976 INFO  L93              Difference]: Finished difference Result 31726 states and 45300 transitions.
[2022-12-13 11:57:36,977 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 11:57:36,977 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 556.3333333333334) internal successors, (1669), 3 states have internal predecessors, (1669), 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 1669
[2022-12-13 11:57:36,977 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 11:57:37,005 INFO  L225             Difference]: With dead ends: 31726
[2022-12-13 11:57:37,005 INFO  L226             Difference]: Without dead ends: 20963
[2022-12-13 11:57:37,011 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 11:57:37,012 INFO  L413           NwaCegarLoop]: 1541 mSDtfsCounter, 2545 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 4771 mSolverCounterSat, 2065 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2545 SdHoareTripleChecker+Valid, 1733 SdHoareTripleChecker+Invalid, 6836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2065 IncrementalHoareTripleChecker+Valid, 4771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time
[2022-12-13 11:57:37,012 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2545 Valid, 1733 Invalid, 6836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2065 Valid, 4771 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time]
[2022-12-13 11:57:37,024 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 20963 states.
[2022-12-13 11:57:37,161 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 20963 to 20962.
[2022-12-13 11:57:37,176 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 20962 states, 20961 states have (on average 1.3126759219502886) internal successors, (27515), 20961 states have internal predecessors, (27515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 11:57:37,199 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20962 states to 20962 states and 27515 transitions.
[2022-12-13 11:57:37,199 INFO  L78                 Accepts]: Start accepts. Automaton has 20962 states and 27515 transitions. Word has length 1669
[2022-12-13 11:57:37,199 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 11:57:37,199 INFO  L495      AbstractCegarLoop]: Abstraction has 20962 states and 27515 transitions.
[2022-12-13 11:57:37,200 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 556.3333333333334) internal successors, (1669), 3 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 11:57:37,200 INFO  L276                IsEmpty]: Start isEmpty. Operand 20962 states and 27515 transitions.
[2022-12-13 11:57:37,235 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1677
[2022-12-13 11:57:37,235 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 11:57:37,236 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2022-12-13 11:57:37,236 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2022-12-13 11:57:37,236 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 11:57:37,236 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 11:57:37,237 INFO  L85        PathProgramCache]: Analyzing trace with hash 294337369, now seen corresponding path program 1 times
[2022-12-13 11:57:37,237 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 11:57:37,237 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396702327]
[2022-12-13 11:57:37,237 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 11:57:37,238 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 11:57:37,398 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 11:57:38,220 INFO  L134       CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 11:57:38,220 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 11:57:38,220 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396702327]
[2022-12-13 11:57:38,221 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396702327] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 11:57:38,221 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 11:57:38,221 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-13 11:57:38,221 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369607849]
[2022-12-13 11:57:38,221 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 11:57:38,223 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 11:57:38,223 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 11:57:38,224 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 11:57:38,225 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 11:57:38,225 INFO  L87              Difference]: Start difference. First operand 20962 states and 27515 transitions. Second operand  has 3 states, 3 states have (on average 558.6666666666666) internal successors, (1676), 2 states have internal predecessors, (1676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 11:57:43,527 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 11:57:43,527 INFO  L93              Difference]: Finished difference Result 62324 states and 81819 transitions.
[2022-12-13 11:57:43,527 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 11:57:43,528 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 558.6666666666666) internal successors, (1676), 2 states have internal predecessors, (1676), 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 1676
[2022-12-13 11:57:43,528 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 11:57:43,574 INFO  L225             Difference]: With dead ends: 62324
[2022-12-13 11:57:43,574 INFO  L226             Difference]: Without dead ends: 41364
[2022-12-13 11:57:43,588 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 11:57:43,589 INFO  L413           NwaCegarLoop]: 1645 mSDtfsCounter, 2086 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 5010 mSolverCounterSat, 2361 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2086 SdHoareTripleChecker+Valid, 1787 SdHoareTripleChecker+Invalid, 7371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2361 IncrementalHoareTripleChecker+Valid, 5010 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time
[2022-12-13 11:57:43,589 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2086 Valid, 1787 Invalid, 7371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2361 Valid, 5010 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time]
[2022-12-13 11:57:43,613 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 41364 states.
[2022-12-13 11:57:43,880 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 41364 to 41347.
[2022-12-13 11:57:43,905 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 41347 states, 41346 states have (on average 1.2615246940453733) internal successors, (52159), 41346 states have internal predecessors, (52159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 11:57:43,944 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 41347 states to 41347 states and 52159 transitions.
[2022-12-13 11:57:43,944 INFO  L78                 Accepts]: Start accepts. Automaton has 41347 states and 52159 transitions. Word has length 1676
[2022-12-13 11:57:43,944 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 11:57:43,945 INFO  L495      AbstractCegarLoop]: Abstraction has 41347 states and 52159 transitions.
[2022-12-13 11:57:43,945 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 558.6666666666666) internal successors, (1676), 2 states have internal predecessors, (1676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 11:57:43,945 INFO  L276                IsEmpty]: Start isEmpty. Operand 41347 states and 52159 transitions.
[2022-12-13 11:57:43,990 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1678
[2022-12-13 11:57:43,990 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 11:57:43,990 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-13 11:57:43,991 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2022-12-13 11:57:43,991 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 11:57:43,991 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 11:57:43,992 INFO  L85        PathProgramCache]: Analyzing trace with hash -1147844416, now seen corresponding path program 1 times
[2022-12-13 11:57:43,992 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 11:57:43,992 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592628460]
[2022-12-13 11:57:43,992 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 11:57:43,992 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 11:57:44,203 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 11:57:44,817 INFO  L134       CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 11:57:44,817 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 11:57:44,817 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592628460]
[2022-12-13 11:57:44,818 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592628460] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 11:57:44,818 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 11:57:44,818 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-13 11:57:44,818 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707090475]
[2022-12-13 11:57:44,818 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 11:57:44,820 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 11:57:44,820 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 11:57:44,821 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 11:57:44,821 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 11:57:44,822 INFO  L87              Difference]: Start difference. First operand 41347 states and 52159 transitions. Second operand  has 3 states, 3 states have (on average 559.0) internal successors, (1677), 2 states have internal predecessors, (1677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 11:57:49,633 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 11:57:49,633 INFO  L93              Difference]: Finished difference Result 101365 states and 126190 transitions.
[2022-12-13 11:57:49,634 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 11:57:49,634 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 559.0) internal successors, (1677), 2 states have internal predecessors, (1677), 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 1677
[2022-12-13 11:57:49,634 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 11:57:49,686 INFO  L225             Difference]: With dead ends: 101365
[2022-12-13 11:57:49,686 INFO  L226             Difference]: Without dead ends: 60020
[2022-12-13 11:57:49,705 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 11:57:49,705 INFO  L413           NwaCegarLoop]: 1057 mSDtfsCounter, 3157 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 4771 mSolverCounterSat, 1198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3157 SdHoareTripleChecker+Valid, 1140 SdHoareTripleChecker+Invalid, 5969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1198 IncrementalHoareTripleChecker+Valid, 4771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time
[2022-12-13 11:57:49,706 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [3157 Valid, 1140 Invalid, 5969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1198 Valid, 4771 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time]
[2022-12-13 11:57:49,744 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 60020 states.
[2022-12-13 11:57:50,115 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 60020 to 60020.
[2022-12-13 11:57:50,150 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 60020 states, 60019 states have (on average 1.1647644912444393) internal successors, (69908), 60019 states have internal predecessors, (69908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 11:57:50,269 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 60020 states to 60020 states and 69908 transitions.
[2022-12-13 11:57:50,270 INFO  L78                 Accepts]: Start accepts. Automaton has 60020 states and 69908 transitions. Word has length 1677
[2022-12-13 11:57:50,270 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 11:57:50,270 INFO  L495      AbstractCegarLoop]: Abstraction has 60020 states and 69908 transitions.
[2022-12-13 11:57:50,270 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 559.0) internal successors, (1677), 2 states have internal predecessors, (1677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 11:57:50,270 INFO  L276                IsEmpty]: Start isEmpty. Operand 60020 states and 69908 transitions.
[2022-12-13 11:57:50,324 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1734
[2022-12-13 11:57:50,324 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 11:57:50,325 INFO  L195           NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-13 11:57:50,325 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2022-12-13 11:57:50,325 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 11:57:50,325 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 11:57:50,326 INFO  L85        PathProgramCache]: Analyzing trace with hash 1615463985, now seen corresponding path program 1 times
[2022-12-13 11:57:50,326 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 11:57:50,326 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458813662]
[2022-12-13 11:57:50,326 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 11:57:50,326 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 11:57:50,466 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 11:57:51,249 INFO  L134       CoverageAnalysis]: Checked inductivity of 118 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2022-12-13 11:57:51,249 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 11:57:51,249 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458813662]
[2022-12-13 11:57:51,250 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458813662] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 11:57:51,250 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 11:57:51,250 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-13 11:57:51,250 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484369199]
[2022-12-13 11:57:51,250 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 11:57:51,252 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 11:57:51,252 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 11:57:51,253 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 11:57:51,253 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 11:57:51,254 INFO  L87              Difference]: Start difference. First operand 60020 states and 69908 transitions. Second operand  has 3 states, 3 states have (on average 576.3333333333334) internal successors, (1729), 3 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 11:57:56,573 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 11:57:56,573 INFO  L93              Difference]: Finished difference Result 150611 states and 177466 transitions.
[2022-12-13 11:57:56,574 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 11:57:56,574 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 576.3333333333334) internal successors, (1729), 3 states have internal predecessors, (1729), 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 1733
[2022-12-13 11:57:56,574 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 11:57:56,651 INFO  L225             Difference]: With dead ends: 150611
[2022-12-13 11:57:56,651 INFO  L226             Difference]: Without dead ends: 90593
[2022-12-13 11:57:56,677 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 11:57:56,678 INFO  L413           NwaCegarLoop]: 3701 mSDtfsCounter, 1979 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 4782 mSolverCounterSat, 2204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1979 SdHoareTripleChecker+Valid, 3938 SdHoareTripleChecker+Invalid, 6986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2204 IncrementalHoareTripleChecker+Valid, 4782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time
[2022-12-13 11:57:56,678 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1979 Valid, 3938 Invalid, 6986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2204 Valid, 4782 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time]
[2022-12-13 11:57:56,742 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 90593 states.
[2022-12-13 11:57:57,292 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 90593 to 90586.
[2022-12-13 11:57:57,338 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 90586 states, 90585 states have (on average 1.1359717392504278) internal successors, (102902), 90585 states have internal predecessors, (102902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 11:57:57,424 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 90586 states to 90586 states and 102902 transitions.
[2022-12-13 11:57:57,424 INFO  L78                 Accepts]: Start accepts. Automaton has 90586 states and 102902 transitions. Word has length 1733
[2022-12-13 11:57:57,424 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 11:57:57,424 INFO  L495      AbstractCegarLoop]: Abstraction has 90586 states and 102902 transitions.
[2022-12-13 11:57:57,425 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 576.3333333333334) internal successors, (1729), 3 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 11:57:57,425 INFO  L276                IsEmpty]: Start isEmpty. Operand 90586 states and 102902 transitions.
[2022-12-13 11:57:57,563 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1747
[2022-12-13 11:57:57,563 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 11:57:57,564 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-13 11:57:57,565 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2022-12-13 11:57:57,565 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 11:57:57,565 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 11:57:57,566 INFO  L85        PathProgramCache]: Analyzing trace with hash -1437301476, now seen corresponding path program 1 times
[2022-12-13 11:57:57,566 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 11:57:57,566 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213281278]
[2022-12-13 11:57:57,566 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 11:57:57,566 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 11:57:57,721 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 11:57:58,370 INFO  L134       CoverageAnalysis]: Checked inductivity of 105 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 11:57:58,370 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 11:57:58,370 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213281278]
[2022-12-13 11:57:58,371 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213281278] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 11:57:58,371 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 11:57:58,371 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-13 11:57:58,371 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781381468]
[2022-12-13 11:57:58,371 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 11:57:58,372 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 11:57:58,372 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 11:57:58,373 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 11:57:58,373 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 11:57:58,373 INFO  L87              Difference]: Start difference. First operand 90586 states and 102902 transitions. Second operand  has 3 states, 3 states have (on average 582.0) internal successors, (1746), 2 states have internal predecessors, (1746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 11:58:03,190 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 11:58:03,190 INFO  L93              Difference]: Finished difference Result 257582 states and 292974 transitions.
[2022-12-13 11:58:03,191 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 11:58:03,191 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 582.0) internal successors, (1746), 2 states have internal predecessors, (1746), 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 1746
[2022-12-13 11:58:03,191 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 11:58:03,393 INFO  L225             Difference]: With dead ends: 257582
[2022-12-13 11:58:03,393 INFO  L226             Difference]: Without dead ends: 166998
[2022-12-13 11:58:03,429 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 11:58:03,430 INFO  L413           NwaCegarLoop]: 1717 mSDtfsCounter, 2394 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 4492 mSolverCounterSat, 2358 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2394 SdHoareTripleChecker+Valid, 1852 SdHoareTripleChecker+Invalid, 6850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2358 IncrementalHoareTripleChecker+Valid, 4492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time
[2022-12-13 11:58:03,430 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2394 Valid, 1852 Invalid, 6850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2358 Valid, 4492 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time]
[2022-12-13 11:58:03,547 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 166998 states.
[2022-12-13 11:58:04,654 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 166998 to 150007.
[2022-12-13 11:58:04,728 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 150007 states, 150006 states have (on average 1.1076956921723131) internal successors, (166161), 150006 states have internal predecessors, (166161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 11:58:04,891 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 150007 states to 150007 states and 166161 transitions.
[2022-12-13 11:58:04,891 INFO  L78                 Accepts]: Start accepts. Automaton has 150007 states and 166161 transitions. Word has length 1746
[2022-12-13 11:58:04,891 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 11:58:04,891 INFO  L495      AbstractCegarLoop]: Abstraction has 150007 states and 166161 transitions.
[2022-12-13 11:58:04,892 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 582.0) internal successors, (1746), 2 states have internal predecessors, (1746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 11:58:04,892 INFO  L276                IsEmpty]: Start isEmpty. Operand 150007 states and 166161 transitions.
[2022-12-13 11:58:05,070 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1786
[2022-12-13 11:58:05,070 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 11:58:05,071 INFO  L195           NwaCegarLoop]: 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-13 11:58:05,072 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2022-12-13 11:58:05,072 INFO  L420      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 11:58:05,072 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 11:58:05,073 INFO  L85        PathProgramCache]: Analyzing trace with hash 1252287883, now seen corresponding path program 1 times
[2022-12-13 11:58:05,073 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 11:58:05,073 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506561885]
[2022-12-13 11:58:05,073 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 11:58:05,074 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 11:58:05,403 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 11:58:06,768 INFO  L134       CoverageAnalysis]: Checked inductivity of 179 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked.
[2022-12-13 11:58:06,768 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 11:58:06,768 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506561885]
[2022-12-13 11:58:06,768 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506561885] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 11:58:06,769 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 11:58:06,769 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-13 11:58:06,769 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453140612]
[2022-12-13 11:58:06,769 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 11:58:06,770 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 11:58:06,770 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 11:58:06,771 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 11:58:06,771 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 11:58:06,772 INFO  L87              Difference]: Start difference. First operand 150007 states and 166161 transitions. Second operand  has 3 states, 3 states have (on average 583.6666666666666) internal successors, (1751), 3 states have internal predecessors, (1751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 11:58:11,904 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 11:58:11,904 INFO  L93              Difference]: Finished difference Result 300007 states and 332317 transitions.
[2022-12-13 11:58:11,904 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 11:58:11,905 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 583.6666666666666) internal successors, (1751), 3 states have internal predecessors, (1751), 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 1785
[2022-12-13 11:58:11,906 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 11:58:12,051 INFO  L225             Difference]: With dead ends: 300007
[2022-12-13 11:58:12,052 INFO  L226             Difference]: Without dead ends: 150002
[2022-12-13 11:58:12,099 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 11:58:12,100 INFO  L413           NwaCegarLoop]: 3040 mSDtfsCounter, 401 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 5750 mSolverCounterSat, 857 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 3388 SdHoareTripleChecker+Invalid, 6607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 857 IncrementalHoareTripleChecker+Valid, 5750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time
[2022-12-13 11:58:12,100 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [401 Valid, 3388 Invalid, 6607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [857 Valid, 5750 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time]
[2022-12-13 11:58:12,204 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 150002 states.
[2022-12-13 11:58:13,457 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 150002 to 149998.
[2022-12-13 11:58:13,548 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 149998 states, 149997 states have (on average 1.0798415968319366) internal successors, (161973), 149997 states have internal predecessors, (161973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 11:58:13,763 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 149998 states to 149998 states and 161973 transitions.
[2022-12-13 11:58:13,763 INFO  L78                 Accepts]: Start accepts. Automaton has 149998 states and 161973 transitions. Word has length 1785
[2022-12-13 11:58:13,765 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 11:58:13,765 INFO  L495      AbstractCegarLoop]: Abstraction has 149998 states and 161973 transitions.
[2022-12-13 11:58:13,765 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 583.6666666666666) internal successors, (1751), 3 states have internal predecessors, (1751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 11:58:13,765 INFO  L276                IsEmpty]: Start isEmpty. Operand 149998 states and 161973 transitions.
[2022-12-13 11:58:14,067 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1931
[2022-12-13 11:58:14,067 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 11:58:14,068 INFO  L195           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-13 11:58:14,068 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2022-12-13 11:58:14,068 INFO  L420      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 11:58:14,069 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 11:58:14,069 INFO  L85        PathProgramCache]: Analyzing trace with hash -999427963, now seen corresponding path program 1 times
[2022-12-13 11:58:14,069 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 11:58:14,069 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703110862]
[2022-12-13 11:58:14,070 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 11:58:14,070 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 11:58:14,235 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 11:58:16,020 INFO  L134       CoverageAnalysis]: Checked inductivity of 671 backedges. 531 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked.
[2022-12-13 11:58:16,020 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 11:58:16,020 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703110862]
[2022-12-13 11:58:16,020 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703110862] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 11:58:16,020 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 11:58:16,021 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-13 11:58:16,021 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061824608]
[2022-12-13 11:58:16,021 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 11:58:16,022 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 11:58:16,022 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 11:58:16,023 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 11:58:16,023 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 11:58:16,023 INFO  L87              Difference]: Start difference. First operand 149998 states and 161973 transitions. Second operand  has 3 states, 3 states have (on average 608.3333333333334) internal successors, (1825), 3 states have internal predecessors, (1825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 11:58:21,666 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 11:58:21,666 INFO  L93              Difference]: Finished difference Result 345902 states and 374798 transitions.
[2022-12-13 11:58:21,666 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 11:58:21,667 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 608.3333333333334) internal successors, (1825), 3 states have internal predecessors, (1825), 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 1930
[2022-12-13 11:58:21,667 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 11:58:21,837 INFO  L225             Difference]: With dead ends: 345902
[2022-12-13 11:58:21,838 INFO  L226             Difference]: Without dead ends: 194192
[2022-12-13 11:58:21,884 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 11:58:21,884 INFO  L413           NwaCegarLoop]: 3877 mSDtfsCounter, 1777 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 6145 mSolverCounterSat, 1202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1777 SdHoareTripleChecker+Valid, 4097 SdHoareTripleChecker+Invalid, 7347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1202 IncrementalHoareTripleChecker+Valid, 6145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time
[2022-12-13 11:58:21,884 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1777 Valid, 4097 Invalid, 7347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1202 Valid, 6145 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time]
[2022-12-13 11:58:22,026 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 194192 states.
[2022-12-13 11:58:23,676 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 194192 to 190740.
[2022-12-13 11:58:23,789 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 190740 states, 190739 states have (on average 1.0713959913808921) internal successors, (204357), 190739 states have internal predecessors, (204357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 11:58:24,049 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 190740 states to 190740 states and 204357 transitions.
[2022-12-13 11:58:24,049 INFO  L78                 Accepts]: Start accepts. Automaton has 190740 states and 204357 transitions. Word has length 1930
[2022-12-13 11:58:24,050 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 11:58:24,050 INFO  L495      AbstractCegarLoop]: Abstraction has 190740 states and 204357 transitions.
[2022-12-13 11:58:24,050 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 608.3333333333334) internal successors, (1825), 3 states have internal predecessors, (1825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 11:58:24,050 INFO  L276                IsEmpty]: Start isEmpty. Operand 190740 states and 204357 transitions.
[2022-12-13 11:58:24,395 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1981
[2022-12-13 11:58:24,395 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 11:58:24,396 INFO  L195           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-13 11:58:24,397 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2022-12-13 11:58:24,397 INFO  L420      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 11:58:24,397 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 11:58:24,398 INFO  L85        PathProgramCache]: Analyzing trace with hash 168084677, now seen corresponding path program 1 times
[2022-12-13 11:58:24,398 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 11:58:24,398 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364840386]
[2022-12-13 11:58:24,399 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 11:58:24,399 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 11:58:24,582 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 11:58:27,028 INFO  L134       CoverageAnalysis]: Checked inductivity of 666 backedges. 574 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked.
[2022-12-13 11:58:27,028 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 11:58:27,028 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364840386]
[2022-12-13 11:58:27,028 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364840386] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 11:58:27,029 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 11:58:27,029 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-13 11:58:27,029 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213157476]
[2022-12-13 11:58:27,029 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 11:58:27,032 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 11:58:27,032 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 11:58:27,034 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 11:58:27,034 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 11:58:27,034 INFO  L87              Difference]: Start difference. First operand 190740 states and 204357 transitions. Second operand  has 3 states, 3 states have (on average 633.0) internal successors, (1899), 3 states have internal predecessors, (1899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 11:58:32,636 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 11:58:32,636 INFO  L93              Difference]: Finished difference Result 452808 states and 484254 transitions.
[2022-12-13 11:58:32,636 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 11:58:32,636 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 633.0) internal successors, (1899), 3 states have internal predecessors, (1899), 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 1980
[2022-12-13 11:58:32,637 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 11:58:32,905 INFO  L225             Difference]: With dead ends: 452808
[2022-12-13 11:58:32,906 INFO  L226             Difference]: Without dead ends: 262069
[2022-12-13 11:58:32,997 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 11:58:32,998 INFO  L413           NwaCegarLoop]: 828 mSDtfsCounter, 2165 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 5066 mSolverCounterSat, 2163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2165 SdHoareTripleChecker+Valid, 924 SdHoareTripleChecker+Invalid, 7229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2163 IncrementalHoareTripleChecker+Valid, 5066 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time
[2022-12-13 11:58:32,998 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2165 Valid, 924 Invalid, 7229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2163 Valid, 5066 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time]
[2022-12-13 11:58:33,200 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 262069 states.
[2022-12-13 11:58:35,516 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 262069 to 250164.
[2022-12-13 11:58:35,661 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 250164 states, 250163 states have (on average 1.0628430263468218) internal successors, (265884), 250163 states have internal predecessors, (265884), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 11:58:36,141 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 250164 states to 250164 states and 265884 transitions.
[2022-12-13 11:58:36,141 INFO  L78                 Accepts]: Start accepts. Automaton has 250164 states and 265884 transitions. Word has length 1980
[2022-12-13 11:58:36,141 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 11:58:36,141 INFO  L495      AbstractCegarLoop]: Abstraction has 250164 states and 265884 transitions.
[2022-12-13 11:58:36,142 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 633.0) internal successors, (1899), 3 states have internal predecessors, (1899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 11:58:36,142 INFO  L276                IsEmpty]: Start isEmpty. Operand 250164 states and 265884 transitions.
[2022-12-13 11:58:36,358 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2614
[2022-12-13 11:58:36,359 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 11:58:36,360 INFO  L195           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-13 11:58:36,360 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2022-12-13 11:58:36,360 INFO  L420      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 11:58:36,360 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 11:58:36,360 INFO  L85        PathProgramCache]: Analyzing trace with hash 789333810, now seen corresponding path program 1 times
[2022-12-13 11:58:36,361 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 11:58:36,361 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946482162]
[2022-12-13 11:58:36,361 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 11:58:36,361 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 11:58:36,733 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 11:58:38,181 INFO  L134       CoverageAnalysis]: Checked inductivity of 1804 backedges. 1087 proven. 0 refuted. 0 times theorem prover too weak. 717 trivial. 0 not checked.
[2022-12-13 11:58:38,181 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 11:58:38,181 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946482162]
[2022-12-13 11:58:38,181 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946482162] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 11:58:38,181 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 11:58:38,182 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-13 11:58:38,182 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045479902]
[2022-12-13 11:58:38,182 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 11:58:38,183 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 11:58:38,183 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 11:58:38,184 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 11:58:38,184 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 11:58:38,184 INFO  L87              Difference]: Start difference. First operand 250164 states and 265884 transitions. Second operand  has 3 states, 3 states have (on average 660.6666666666666) internal successors, (1982), 3 states have internal predecessors, (1982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 11:58:43,487 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 11:58:43,487 INFO  L93              Difference]: Finished difference Result 508809 states and 539866 transitions.
[2022-12-13 11:58:43,498 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 11:58:43,498 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 660.6666666666666) internal successors, (1982), 3 states have internal predecessors, (1982), 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 2613
[2022-12-13 11:58:43,499 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 11:58:43,795 INFO  L225             Difference]: With dead ends: 508809
[2022-12-13 11:58:43,795 INFO  L226             Difference]: Without dead ends: 255237
[2022-12-13 11:58:43,888 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 11:58:43,889 INFO  L413           NwaCegarLoop]: 2806 mSDtfsCounter, 2269 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 4820 mSolverCounterSat, 1492 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2269 SdHoareTripleChecker+Valid, 2906 SdHoareTripleChecker+Invalid, 6312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1492 IncrementalHoareTripleChecker+Valid, 4820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time
[2022-12-13 11:58:43,889 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2269 Valid, 2906 Invalid, 6312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1492 Valid, 4820 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time]
[2022-12-13 11:58:44,076 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 255237 states.
[2022-12-13 11:58:46,054 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 255237 to 246734.
[2022-12-13 11:58:46,148 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 246734 states, 246733 states have (on average 1.0502040667442134) internal successors, (259120), 246733 states have internal predecessors, (259120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 11:58:46,505 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 246734 states to 246734 states and 259120 transitions.
[2022-12-13 11:58:46,505 INFO  L78                 Accepts]: Start accepts. Automaton has 246734 states and 259120 transitions. Word has length 2613
[2022-12-13 11:58:46,505 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 11:58:46,505 INFO  L495      AbstractCegarLoop]: Abstraction has 246734 states and 259120 transitions.
[2022-12-13 11:58:46,506 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 660.6666666666666) internal successors, (1982), 3 states have internal predecessors, (1982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 11:58:46,506 INFO  L276                IsEmpty]: Start isEmpty. Operand 246734 states and 259120 transitions.
[2022-12-13 11:58:46,820 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2657
[2022-12-13 11:58:46,820 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 11:58:46,821 INFO  L195           NwaCegarLoop]: 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, 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, 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, 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, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-13 11:58:46,821 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2022-12-13 11:58:46,821 INFO  L420      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 11:58:46,821 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 11:58:46,822 INFO  L85        PathProgramCache]: Analyzing trace with hash 1428771862, now seen corresponding path program 1 times
[2022-12-13 11:58:46,822 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 11:58:46,822 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909875939]
[2022-12-13 11:58:46,822 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 11:58:46,822 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 11:58:47,165 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 11:58:49,308 INFO  L134       CoverageAnalysis]: Checked inductivity of 1452 backedges. 878 proven. 0 refuted. 0 times theorem prover too weak. 574 trivial. 0 not checked.
[2022-12-13 11:58:49,309 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 11:58:49,309 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909875939]
[2022-12-13 11:58:49,309 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909875939] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 11:58:49,309 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 11:58:49,309 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-13 11:58:49,309 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303187549]
[2022-12-13 11:58:49,309 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 11:58:49,310 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 11:58:49,310 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 11:58:49,311 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 11:58:49,312 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 11:58:49,312 INFO  L87              Difference]: Start difference. First operand 246734 states and 259120 transitions. Second operand  has 3 states, 3 states have (on average 694.3333333333334) internal successors, (2083), 2 states have internal predecessors, (2083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 11:58:54,554 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 11:58:54,554 INFO  L93              Difference]: Finished difference Result 529128 states and 555692 transitions.
[2022-12-13 11:58:54,555 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 11:58:54,555 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 694.3333333333334) internal successors, (2083), 2 states have internal predecessors, (2083), 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 2656
[2022-12-13 11:58:54,556 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 11:58:54,834 INFO  L225             Difference]: With dead ends: 529128
[2022-12-13 11:58:54,834 INFO  L226             Difference]: Without dead ends: 280660
[2022-12-13 11:58:54,933 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 11:58:54,934 INFO  L413           NwaCegarLoop]: 1612 mSDtfsCounter, 1867 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 4427 mSolverCounterSat, 1271 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1867 SdHoareTripleChecker+Valid, 1781 SdHoareTripleChecker+Invalid, 5698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1271 IncrementalHoareTripleChecker+Valid, 4427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time
[2022-12-13 11:58:54,934 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1867 Valid, 1781 Invalid, 5698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1271 Valid, 4427 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time]
[2022-12-13 11:58:55,148 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 280660 states.
[2022-12-13 11:58:57,335 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 280660 to 275565.
[2022-12-13 11:58:57,473 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 275565 states, 275564 states have (on average 1.0245169906083522) internal successors, (282320), 275564 states have internal predecessors, (282320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 11:58:57,912 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 275565 states to 275565 states and 282320 transitions.
[2022-12-13 11:58:57,912 INFO  L78                 Accepts]: Start accepts. Automaton has 275565 states and 282320 transitions. Word has length 2656
[2022-12-13 11:58:57,912 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 11:58:57,912 INFO  L495      AbstractCegarLoop]: Abstraction has 275565 states and 282320 transitions.
[2022-12-13 11:58:57,913 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 694.3333333333334) internal successors, (2083), 2 states have internal predecessors, (2083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 11:58:57,913 INFO  L276                IsEmpty]: Start isEmpty. Operand 275565 states and 282320 transitions.
[2022-12-13 11:58:58,280 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2675
[2022-12-13 11:58:58,280 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 11:58:58,281 INFO  L195           NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 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, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-13 11:58:58,281 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2022-12-13 11:58:58,281 INFO  L420      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 11:58:58,282 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 11:58:58,282 INFO  L85        PathProgramCache]: Analyzing trace with hash 543427688, now seen corresponding path program 1 times
[2022-12-13 11:58:58,282 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 11:58:58,282 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893105036]
[2022-12-13 11:58:58,282 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 11:58:58,283 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 11:58:58,501 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 11:59:01,288 INFO  L134       CoverageAnalysis]: Checked inductivity of 1505 backedges. 931 proven. 0 refuted. 0 times theorem prover too weak. 574 trivial. 0 not checked.
[2022-12-13 11:59:01,288 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 11:59:01,288 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893105036]
[2022-12-13 11:59:01,289 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893105036] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 11:59:01,289 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 11:59:01,289 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-13 11:59:01,289 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483873112]
[2022-12-13 11:59:01,289 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 11:59:01,292 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-12-13 11:59:01,292 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 11:59:01,293 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-12-13 11:59:01,293 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2022-12-13 11:59:01,294 INFO  L87              Difference]: Start difference. First operand 275565 states and 282320 transitions. Second operand  has 4 states, 4 states have (on average 525.25) internal successors, (2101), 3 states have internal predecessors, (2101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 11:59:07,565 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 11:59:07,565 INFO  L93              Difference]: Finished difference Result 554553 states and 568142 transitions.
[2022-12-13 11:59:07,566 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2022-12-13 11:59:07,566 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 525.25) internal successors, (2101), 3 states have internal predecessors, (2101), 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 2674
[2022-12-13 11:59:07,566 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 11:59:07,837 INFO  L225             Difference]: With dead ends: 554553
[2022-12-13 11:59:07,837 INFO  L226             Difference]: Without dead ends: 277286
[2022-12-13 11:59:07,939 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2022-12-13 11:59:07,940 INFO  L413           NwaCegarLoop]: 824 mSDtfsCounter, 3890 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 8461 mSolverCounterSat, 549 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3890 SdHoareTripleChecker+Valid, 1076 SdHoareTripleChecker+Invalid, 9010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 549 IncrementalHoareTripleChecker+Valid, 8461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time
[2022-12-13 11:59:07,940 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [3890 Valid, 1076 Invalid, 9010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [549 Valid, 8461 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time]
[2022-12-13 11:59:08,167 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 277286 states.
[2022-12-13 11:59:10,131 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 277286 to 275560.
[2022-12-13 11:59:10,283 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 275560 states, 275559 states have (on average 1.0243686470048157) internal successors, (282274), 275559 states have internal predecessors, (282274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 11:59:10,735 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 275560 states to 275560 states and 282274 transitions.
[2022-12-13 11:59:10,736 INFO  L78                 Accepts]: Start accepts. Automaton has 275560 states and 282274 transitions. Word has length 2674
[2022-12-13 11:59:10,736 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 11:59:10,736 INFO  L495      AbstractCegarLoop]: Abstraction has 275560 states and 282274 transitions.
[2022-12-13 11:59:10,736 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 525.25) internal successors, (2101), 3 states have internal predecessors, (2101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 11:59:10,736 INFO  L276                IsEmpty]: Start isEmpty. Operand 275560 states and 282274 transitions.
[2022-12-13 11:59:10,963 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2693
[2022-12-13 11:59:10,963 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 11:59:10,964 INFO  L195           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-13 11:59:10,964 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2022-12-13 11:59:10,964 INFO  L420      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 11:59:10,965 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 11:59:10,965 INFO  L85        PathProgramCache]: Analyzing trace with hash 1660323745, now seen corresponding path program 1 times
[2022-12-13 11:59:10,965 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 11:59:10,965 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39303885]
[2022-12-13 11:59:10,965 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 11:59:10,965 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 11:59:11,336 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 11:59:13,112 INFO  L134       CoverageAnalysis]: Checked inductivity of 2061 backedges. 1367 proven. 0 refuted. 0 times theorem prover too weak. 694 trivial. 0 not checked.
[2022-12-13 11:59:13,113 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 11:59:13,113 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39303885]
[2022-12-13 11:59:13,113 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39303885] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 11:59:13,113 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 11:59:13,113 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-13 11:59:13,113 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321114480]
[2022-12-13 11:59:13,113 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 11:59:13,114 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 11:59:13,114 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 11:59:13,115 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 11:59:13,115 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 11:59:13,116 INFO  L87              Difference]: Start difference. First operand 275560 states and 282274 transitions. Second operand  has 3 states, 3 states have (on average 678.6666666666666) internal successors, (2036), 3 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 11:59:17,636 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 11:59:17,636 INFO  L93              Difference]: Finished difference Result 636012 states and 652185 transitions.
[2022-12-13 11:59:17,637 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 11:59:17,637 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 678.6666666666666) internal successors, (2036), 3 states have internal predecessors, (2036), 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 2692
[2022-12-13 11:59:17,638 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 11:59:18,018 INFO  L225             Difference]: With dead ends: 636012
[2022-12-13 11:59:18,019 INFO  L226             Difference]: Without dead ends: 360454
[2022-12-13 11:59:18,211 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 11:59:18,212 INFO  L413           NwaCegarLoop]: 2840 mSDtfsCounter, 1769 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 4099 mSolverCounterSat, 764 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1769 SdHoareTripleChecker+Valid, 3121 SdHoareTripleChecker+Invalid, 4863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 764 IncrementalHoareTripleChecker+Valid, 4099 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time
[2022-12-13 11:59:18,212 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1769 Valid, 3121 Invalid, 4863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [764 Valid, 4099 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time]
[2022-12-13 11:59:18,467 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 360454 states.
[2022-12-13 11:59:21,073 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 360454 to 331581.
[2022-12-13 11:59:21,166 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 331581 states, 331580 states have (on average 1.020933108148863) internal successors, (338521), 331580 states have internal predecessors, (338521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 11:59:21,497 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 331581 states to 331581 states and 338521 transitions.
[2022-12-13 11:59:21,497 INFO  L78                 Accepts]: Start accepts. Automaton has 331581 states and 338521 transitions. Word has length 2692
[2022-12-13 11:59:21,497 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 11:59:21,497 INFO  L495      AbstractCegarLoop]: Abstraction has 331581 states and 338521 transitions.
[2022-12-13 11:59:21,498 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 678.6666666666666) internal successors, (2036), 3 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 11:59:21,498 INFO  L276                IsEmpty]: Start isEmpty. Operand 331581 states and 338521 transitions.
[2022-12-13 11:59:21,902 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3071
[2022-12-13 11:59:21,902 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 11:59:21,903 INFO  L195           NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-13 11:59:21,903 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2022-12-13 11:59:21,904 INFO  L420      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 11:59:21,904 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 11:59:21,904 INFO  L85        PathProgramCache]: Analyzing trace with hash 722512070, now seen corresponding path program 1 times
[2022-12-13 11:59:21,904 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 11:59:21,904 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280970934]
[2022-12-13 11:59:21,905 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 11:59:21,905 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 11:59:22,242 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 11:59:25,346 INFO  L134       CoverageAnalysis]: Checked inductivity of 3323 backedges. 1778 proven. 0 refuted. 0 times theorem prover too weak. 1545 trivial. 0 not checked.
[2022-12-13 11:59:25,346 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 11:59:25,346 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280970934]
[2022-12-13 11:59:25,346 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280970934] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 11:59:25,346 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 11:59:25,346 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-13 11:59:25,347 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779978318]
[2022-12-13 11:59:25,347 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 11:59:25,348 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 11:59:25,348 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 11:59:25,349 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 11:59:25,349 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 11:59:25,349 INFO  L87              Difference]: Start difference. First operand 331581 states and 338521 transitions. Second operand  has 3 states, 3 states have (on average 710.6666666666666) internal successors, (2132), 3 states have internal predecessors, (2132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 11:59:30,503 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 11:59:30,503 INFO  L93              Difference]: Finished difference Result 675095 states and 689090 transitions.
[2022-12-13 11:59:30,504 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 11:59:30,504 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 710.6666666666666) internal successors, (2132), 3 states have internal predecessors, (2132), 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 3070
[2022-12-13 11:59:30,504 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 11:59:30,869 INFO  L225             Difference]: With dead ends: 675095
[2022-12-13 11:59:30,869 INFO  L226             Difference]: Without dead ends: 341799
[2022-12-13 11:59:30,984 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 11:59:30,985 INFO  L413           NwaCegarLoop]: 1273 mSDtfsCounter, 1704 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 4763 mSolverCounterSat, 313 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1704 SdHoareTripleChecker+Valid, 1461 SdHoareTripleChecker+Invalid, 5076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 313 IncrementalHoareTripleChecker+Valid, 4763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time
[2022-12-13 11:59:30,985 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1704 Valid, 1461 Invalid, 5076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [313 Valid, 4763 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time]
[2022-12-13 11:59:31,275 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 341799 states.
[2022-12-13 11:59:33,728 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 341799 to 329861.
[2022-12-13 11:59:33,835 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 329861 states, 329860 states have (on average 1.0193627599587705) internal successors, (336247), 329860 states have internal predecessors, (336247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 11:59:34,167 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 329861 states to 329861 states and 336247 transitions.
[2022-12-13 11:59:34,168 INFO  L78                 Accepts]: Start accepts. Automaton has 329861 states and 336247 transitions. Word has length 3070
[2022-12-13 11:59:34,168 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 11:59:34,168 INFO  L495      AbstractCegarLoop]: Abstraction has 329861 states and 336247 transitions.
[2022-12-13 11:59:34,168 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 710.6666666666666) internal successors, (2132), 3 states have internal predecessors, (2132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 11:59:34,169 INFO  L276                IsEmpty]: Start isEmpty. Operand 329861 states and 336247 transitions.
[2022-12-13 11:59:34,729 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3091
[2022-12-13 11:59:34,730 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 11:59:34,730 INFO  L195           NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-13 11:59:34,731 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2022-12-13 11:59:34,731 INFO  L420      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 11:59:34,731 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 11:59:34,732 INFO  L85        PathProgramCache]: Analyzing trace with hash 1473249591, now seen corresponding path program 1 times
[2022-12-13 11:59:34,732 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 11:59:34,732 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120401703]
[2022-12-13 11:59:34,732 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 11:59:34,732 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 11:59:35,256 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 11:59:44,995 INFO  L134       CoverageAnalysis]: Checked inductivity of 3533 backedges. 2682 proven. 813 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked.
[2022-12-13 11:59:44,995 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 11:59:44,995 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120401703]
[2022-12-13 11:59:44,996 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120401703] provided 0 perfect and 1 imperfect interpolant sequences
[2022-12-13 11:59:44,996 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [349658585]
[2022-12-13 11:59:44,996 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 11:59:44,996 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-12-13 11:59:44,997 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc366efa-0480-40be-a79a-f88a9a2e3573/bin/uautomizer-uyxdKDjOR8/z3
[2022-12-13 11:59:44,997 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc366efa-0480-40be-a79a-f88a9a2e3573/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-12-13 11:59:44,998 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc366efa-0480-40be-a79a-f88a9a2e3573/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2022-12-13 11:59:45,780 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 11:59:45,791 INFO  L263         TraceCheckSpWp]: Trace formula consists of 3431 conjuncts, 2 conjunts are in the unsatisfiable core
[2022-12-13 11:59:45,834 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-12-13 11:59:46,353 INFO  L134       CoverageAnalysis]: Checked inductivity of 3533 backedges. 2374 proven. 0 refuted. 0 times theorem prover too weak. 1159 trivial. 0 not checked.
[2022-12-13 11:59:46,354 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-12-13 11:59:46,354 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [349658585] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 11:59:46,354 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2022-12-13 11:59:46,354 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 12
[2022-12-13 11:59:46,355 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168529677]
[2022-12-13 11:59:46,355 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 11:59:46,357 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 11:59:46,357 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 11:59:46,359 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 11:59:46,359 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132
[2022-12-13 11:59:46,359 INFO  L87              Difference]: Start difference. First operand 329861 states and 336247 transitions. Second operand  has 3 states, 3 states have (on average 829.0) internal successors, (2487), 3 states have internal predecessors, (2487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 11:59:51,727 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 11:59:51,727 INFO  L93              Difference]: Finished difference Result 727656 states and 742034 transitions.
[2022-12-13 11:59:51,727 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 11:59:51,728 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 829.0) internal successors, (2487), 3 states have internal predecessors, (2487), 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 3090
[2022-12-13 11:59:51,729 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 11:59:52,191 INFO  L225             Difference]: With dead ends: 727656
[2022-12-13 11:59:52,191 INFO  L226             Difference]: Without dead ends: 397796
[2022-12-13 11:59:52,343 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3100 GetRequests, 3090 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132
[2022-12-13 11:59:52,344 INFO  L413           NwaCegarLoop]: 2870 mSDtfsCounter, 1272 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 4495 mSolverCounterSat, 591 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1272 SdHoareTripleChecker+Valid, 3074 SdHoareTripleChecker+Invalid, 5086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 591 IncrementalHoareTripleChecker+Valid, 4495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time
[2022-12-13 11:59:52,344 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1272 Valid, 3074 Invalid, 5086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [591 Valid, 4495 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time]
[2022-12-13 11:59:52,682 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 397796 states.
[2022-12-13 11:59:55,271 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 397796 to 392681.
[2022-12-13 11:59:55,485 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 392681 states, 392680 states have (on average 1.0168254049098502) internal successors, (399287), 392680 states have internal predecessors, (399287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 11:59:55,879 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 392681 states to 392681 states and 399287 transitions.
[2022-12-13 11:59:55,879 INFO  L78                 Accepts]: Start accepts. Automaton has 392681 states and 399287 transitions. Word has length 3090
[2022-12-13 11:59:55,880 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 11:59:55,880 INFO  L495      AbstractCegarLoop]: Abstraction has 392681 states and 399287 transitions.
[2022-12-13 11:59:55,880 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 829.0) internal successors, (2487), 3 states have internal predecessors, (2487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 11:59:55,880 INFO  L276                IsEmpty]: Start isEmpty. Operand 392681 states and 399287 transitions.
[2022-12-13 11:59:56,176 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3146
[2022-12-13 11:59:56,176 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 11:59:56,177 INFO  L195           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 3, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-13 11:59:56,184 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc366efa-0480-40be-a79a-f88a9a2e3573/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2022-12-13 11:59:56,378 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc366efa-0480-40be-a79a-f88a9a2e3573/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16
[2022-12-13 11:59:56,379 INFO  L420      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 11:59:56,380 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 11:59:56,382 INFO  L85        PathProgramCache]: Analyzing trace with hash 1516326218, now seen corresponding path program 1 times
[2022-12-13 11:59:56,382 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 11:59:56,383 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465696305]
[2022-12-13 11:59:56,383 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 11:59:56,384 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 11:59:57,220 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 11:59:59,718 INFO  L134       CoverageAnalysis]: Checked inductivity of 3401 backedges. 1873 proven. 0 refuted. 0 times theorem prover too weak. 1528 trivial. 0 not checked.
[2022-12-13 11:59:59,718 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 11:59:59,718 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465696305]
[2022-12-13 11:59:59,718 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465696305] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 11:59:59,718 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 11:59:59,719 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-13 11:59:59,719 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561853589]
[2022-12-13 11:59:59,719 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 11:59:59,720 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 11:59:59,720 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 11:59:59,721 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 11:59:59,721 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 11:59:59,722 INFO  L87              Difference]: Start difference. First operand 392681 states and 399287 transitions. Second operand  has 3 states, 3 states have (on average 741.0) internal successors, (2223), 3 states have internal predecessors, (2223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:00:04,799 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 12:00:04,799 INFO  L93              Difference]: Finished difference Result 785362 states and 798575 transitions.
[2022-12-13 12:00:04,799 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 12:00:04,800 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 741.0) internal successors, (2223), 3 states have internal predecessors, (2223), 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 3145
[2022-12-13 12:00:04,800 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 12:00:05,212 INFO  L225             Difference]: With dead ends: 785362
[2022-12-13 12:00:05,212 INFO  L226             Difference]: Without dead ends: 392683
[2022-12-13 12:00:05,340 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 12:00:05,341 INFO  L413           NwaCegarLoop]: 2747 mSDtfsCounter, 1734 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 4317 mSolverCounterSat, 453 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1734 SdHoareTripleChecker+Valid, 2999 SdHoareTripleChecker+Invalid, 4770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 453 IncrementalHoareTripleChecker+Valid, 4317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time
[2022-12-13 12:00:05,341 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1734 Valid, 2999 Invalid, 4770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [453 Valid, 4317 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time]
[2022-12-13 12:00:05,651 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 392683 states.
[2022-12-13 12:00:08,451 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 392683 to 392680.
[2022-12-13 12:00:08,566 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 392680 states, 392679 states have (on average 1.0121524196608425) internal successors, (397451), 392679 states have internal predecessors, (397451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:00:08,943 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 392680 states to 392680 states and 397451 transitions.
[2022-12-13 12:00:08,943 INFO  L78                 Accepts]: Start accepts. Automaton has 392680 states and 397451 transitions. Word has length 3145
[2022-12-13 12:00:08,944 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 12:00:08,944 INFO  L495      AbstractCegarLoop]: Abstraction has 392680 states and 397451 transitions.
[2022-12-13 12:00:08,944 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 741.0) internal successors, (2223), 3 states have internal predecessors, (2223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:00:08,944 INFO  L276                IsEmpty]: Start isEmpty. Operand 392680 states and 397451 transitions.
[2022-12-13 12:00:09,406 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3171
[2022-12-13 12:00:09,406 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 12:00:09,407 INFO  L195           NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-13 12:00:09,407 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2022-12-13 12:00:09,407 INFO  L420      AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 12:00:09,408 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 12:00:09,408 INFO  L85        PathProgramCache]: Analyzing trace with hash 1949173151, now seen corresponding path program 1 times
[2022-12-13 12:00:09,408 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 12:00:09,408 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129881909]
[2022-12-13 12:00:09,408 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 12:00:09,408 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 12:00:09,778 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 12:00:13,067 INFO  L134       CoverageAnalysis]: Checked inductivity of 4700 backedges. 2845 proven. 0 refuted. 0 times theorem prover too weak. 1855 trivial. 0 not checked.
[2022-12-13 12:00:13,067 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 12:00:13,067 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129881909]
[2022-12-13 12:00:13,067 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129881909] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 12:00:13,067 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 12:00:13,068 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-13 12:00:13,068 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646771103]
[2022-12-13 12:00:13,068 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 12:00:13,070 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 12:00:13,070 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 12:00:13,072 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 12:00:13,072 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 12:00:13,072 INFO  L87              Difference]: Start difference. First operand 392680 states and 397451 transitions. Second operand  has 3 states, 3 states have (on average 710.6666666666666) internal successors, (2132), 3 states have internal predecessors, (2132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:00:18,158 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 12:00:18,158 INFO  L93              Difference]: Finished difference Result 810833 states and 820643 transitions.
[2022-12-13 12:00:18,158 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 12:00:18,159 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 710.6666666666666) internal successors, (2132), 3 states have internal predecessors, (2132), 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 3170
[2022-12-13 12:00:18,159 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 12:00:18,765 INFO  L225             Difference]: With dead ends: 810833
[2022-12-13 12:00:18,765 INFO  L226             Difference]: Without dead ends: 418155
[2022-12-13 12:00:18,887 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 12:00:18,887 INFO  L413           NwaCegarLoop]: 1108 mSDtfsCounter, 1529 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 4357 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1529 SdHoareTripleChecker+Valid, 1316 SdHoareTripleChecker+Invalid, 4563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 4357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time
[2022-12-13 12:00:18,888 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1529 Valid, 1316 Invalid, 4563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 4357 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time]
[2022-12-13 12:00:19,191 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 418155 states.
[2022-12-13 12:00:22,328 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 418155 to 402871.
[2022-12-13 12:00:22,636 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 402871 states, 402870 states have (on average 1.0121453570630725) internal successors, (407763), 402870 states have internal predecessors, (407763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:00:23,045 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 402871 states to 402871 states and 407763 transitions.
[2022-12-13 12:00:23,045 INFO  L78                 Accepts]: Start accepts. Automaton has 402871 states and 407763 transitions. Word has length 3170
[2022-12-13 12:00:23,046 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 12:00:23,046 INFO  L495      AbstractCegarLoop]: Abstraction has 402871 states and 407763 transitions.
[2022-12-13 12:00:23,047 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 710.6666666666666) internal successors, (2132), 3 states have internal predecessors, (2132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:00:23,047 INFO  L276                IsEmpty]: Start isEmpty. Operand 402871 states and 407763 transitions.
[2022-12-13 12:00:23,532 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3208
[2022-12-13 12:00:23,532 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 12:00:23,534 INFO  L195           NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-13 12:00:23,534 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2022-12-13 12:00:23,535 INFO  L420      AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 12:00:23,535 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 12:00:23,536 INFO  L85        PathProgramCache]: Analyzing trace with hash -693002170, now seen corresponding path program 1 times
[2022-12-13 12:00:23,536 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 12:00:23,536 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161656897]
[2022-12-13 12:00:23,537 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 12:00:23,537 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 12:00:23,819 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 12:00:27,282 INFO  L134       CoverageAnalysis]: Checked inductivity of 4486 backedges. 3032 proven. 0 refuted. 0 times theorem prover too weak. 1454 trivial. 0 not checked.
[2022-12-13 12:00:27,282 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 12:00:27,282 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161656897]
[2022-12-13 12:00:27,282 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161656897] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 12:00:27,282 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 12:00:27,283 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-13 12:00:27,283 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136540223]
[2022-12-13 12:00:27,284 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 12:00:27,287 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 12:00:27,287 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 12:00:27,289 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 12:00:27,289 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 12:00:27,289 INFO  L87              Difference]: Start difference. First operand 402871 states and 407763 transitions. Second operand  has 3 states, 3 states have (on average 710.0) internal successors, (2130), 3 states have internal predecessors, (2130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:00:32,337 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 12:00:32,337 INFO  L93              Difference]: Finished difference Result 804041 states and 813806 transitions.
[2022-12-13 12:00:32,337 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 12:00:32,338 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 710.0) internal successors, (2130), 3 states have internal predecessors, (2130), 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 3207
[2022-12-13 12:00:32,338 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 12:00:32,822 INFO  L225             Difference]: With dead ends: 804041
[2022-12-13 12:00:32,823 INFO  L226             Difference]: Without dead ends: 399468
[2022-12-13 12:00:33,176 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 12:00:33,176 INFO  L413           NwaCegarLoop]: 2669 mSDtfsCounter, 1685 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 4353 mSolverCounterSat, 413 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1685 SdHoareTripleChecker+Valid, 2864 SdHoareTripleChecker+Invalid, 4766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 413 IncrementalHoareTripleChecker+Valid, 4353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time
[2022-12-13 12:00:33,177 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1685 Valid, 2864 Invalid, 4766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [413 Valid, 4353 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time]
[2022-12-13 12:00:33,501 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 399468 states.
[2022-12-13 12:00:36,474 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 399468 to 389272.
[2022-12-13 12:00:36,602 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 389272 states, 389271 states have (on average 1.0094073280568037) internal successors, (392933), 389271 states have internal predecessors, (392933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:00:36,977 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 389272 states to 389272 states and 392933 transitions.
[2022-12-13 12:00:36,977 INFO  L78                 Accepts]: Start accepts. Automaton has 389272 states and 392933 transitions. Word has length 3207
[2022-12-13 12:00:36,978 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 12:00:36,978 INFO  L495      AbstractCegarLoop]: Abstraction has 389272 states and 392933 transitions.
[2022-12-13 12:00:36,978 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 710.0) internal successors, (2130), 3 states have internal predecessors, (2130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:00:36,979 INFO  L276                IsEmpty]: Start isEmpty. Operand 389272 states and 392933 transitions.
[2022-12-13 12:00:37,583 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3263
[2022-12-13 12:00:37,584 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 12:00:37,585 INFO  L195           NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-13 12:00:37,585 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19
[2022-12-13 12:00:37,585 INFO  L420      AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 12:00:37,585 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 12:00:37,586 INFO  L85        PathProgramCache]: Analyzing trace with hash -2006941440, now seen corresponding path program 1 times
[2022-12-13 12:00:37,586 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 12:00:37,586 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62560395]
[2022-12-13 12:00:37,586 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 12:00:37,586 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 12:00:38,020 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 12:00:40,505 INFO  L134       CoverageAnalysis]: Checked inductivity of 3996 backedges. 1750 proven. 0 refuted. 0 times theorem prover too weak. 2246 trivial. 0 not checked.
[2022-12-13 12:00:40,505 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 12:00:40,505 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62560395]
[2022-12-13 12:00:40,505 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62560395] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 12:00:40,505 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 12:00:40,505 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-13 12:00:40,505 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944072637]
[2022-12-13 12:00:40,506 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 12:00:40,507 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 12:00:40,507 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 12:00:40,508 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 12:00:40,508 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 12:00:40,509 INFO  L87              Difference]: Start difference. First operand 389272 states and 392933 transitions. Second operand  has 3 states, 3 states have (on average 641.3333333333334) internal successors, (1924), 3 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:00:45,368 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 12:00:45,368 INFO  L93              Difference]: Finished difference Result 780243 states and 787572 transitions.
[2022-12-13 12:00:45,368 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 12:00:45,368 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 641.3333333333334) internal successors, (1924), 3 states have internal predecessors, (1924), 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 3262
[2022-12-13 12:00:45,369 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 12:00:45,792 INFO  L225             Difference]: With dead ends: 780243
[2022-12-13 12:00:45,792 INFO  L226             Difference]: Without dead ends: 389272
[2022-12-13 12:00:45,926 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 12:00:45,927 INFO  L413           NwaCegarLoop]: 2742 mSDtfsCounter, 1766 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 4381 mSolverCounterSat, 577 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1766 SdHoareTripleChecker+Valid, 2936 SdHoareTripleChecker+Invalid, 4958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 577 IncrementalHoareTripleChecker+Valid, 4381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time
[2022-12-13 12:00:45,927 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1766 Valid, 2936 Invalid, 4958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [577 Valid, 4381 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time]
[2022-12-13 12:00:46,254 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 389272 states.
[2022-12-13 12:00:49,314 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 389272 to 384168.
[2022-12-13 12:00:49,447 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 384168 states, 384167 states have (on average 1.007199993752717) internal successors, (386933), 384167 states have internal predecessors, (386933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:00:49,820 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 384168 states to 384168 states and 386933 transitions.
[2022-12-13 12:00:49,820 INFO  L78                 Accepts]: Start accepts. Automaton has 384168 states and 386933 transitions. Word has length 3262
[2022-12-13 12:00:49,821 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 12:00:49,821 INFO  L495      AbstractCegarLoop]: Abstraction has 384168 states and 386933 transitions.
[2022-12-13 12:00:49,821 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 641.3333333333334) internal successors, (1924), 3 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:00:49,821 INFO  L276                IsEmpty]: Start isEmpty. Operand 384168 states and 386933 transitions.
[2022-12-13 12:00:50,273 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3332
[2022-12-13 12:00:50,273 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 12:00:50,274 INFO  L195           NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-13 12:00:50,274 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20
[2022-12-13 12:00:50,274 INFO  L420      AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 12:00:50,274 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 12:00:50,275 INFO  L85        PathProgramCache]: Analyzing trace with hash -1507567424, now seen corresponding path program 1 times
[2022-12-13 12:00:50,275 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 12:00:50,275 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931078294]
[2022-12-13 12:00:50,275 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 12:00:50,275 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 12:00:50,672 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 12:00:54,341 INFO  L134       CoverageAnalysis]: Checked inductivity of 3798 backedges. 2815 proven. 0 refuted. 0 times theorem prover too weak. 983 trivial. 0 not checked.
[2022-12-13 12:00:54,341 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 12:00:54,341 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931078294]
[2022-12-13 12:00:54,342 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931078294] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 12:00:54,342 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 12:00:54,342 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-13 12:00:54,342 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765619826]
[2022-12-13 12:00:54,342 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 12:00:54,343 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-12-13 12:00:54,343 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 12:00:54,345 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-12-13 12:00:54,345 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2022-12-13 12:00:54,345 INFO  L87              Difference]: Start difference. First operand 384168 states and 386933 transitions. Second operand  has 4 states, 4 states have (on average 666.25) internal successors, (2665), 3 states have internal predecessors, (2665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:01:01,057 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 12:01:01,057 INFO  L93              Difference]: Finished difference Result 839656 states and 845653 transitions.
[2022-12-13 12:01:01,057 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2022-12-13 12:01:01,058 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 666.25) internal successors, (2665), 3 states have internal predecessors, (2665), 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 3331
[2022-12-13 12:01:01,059 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 12:01:01,559 INFO  L225             Difference]: With dead ends: 839656
[2022-12-13 12:01:01,559 INFO  L226             Difference]: Without dead ends: 448687
[2022-12-13 12:01:01,712 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2022-12-13 12:01:01,713 INFO  L413           NwaCegarLoop]: 700 mSDtfsCounter, 3076 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 8467 mSolverCounterSat, 525 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3076 SdHoareTripleChecker+Valid, 951 SdHoareTripleChecker+Invalid, 8992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 525 IncrementalHoareTripleChecker+Valid, 8467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time
[2022-12-13 12:01:01,713 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [3076 Valid, 951 Invalid, 8992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [525 Valid, 8467 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time]
[2022-12-13 12:01:02,258 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 448687 states.
[2022-12-13 12:01:05,553 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 448687 to 440191.
[2022-12-13 12:01:05,658 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 440191 states, 440190 states have (on average 1.006617596946773) internal successors, (443103), 440190 states have internal predecessors, (443103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:01:06,092 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 440191 states to 440191 states and 443103 transitions.
[2022-12-13 12:01:06,092 INFO  L78                 Accepts]: Start accepts. Automaton has 440191 states and 443103 transitions. Word has length 3331
[2022-12-13 12:01:06,093 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 12:01:06,093 INFO  L495      AbstractCegarLoop]: Abstraction has 440191 states and 443103 transitions.
[2022-12-13 12:01:06,094 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 666.25) internal successors, (2665), 3 states have internal predecessors, (2665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:01:06,094 INFO  L276                IsEmpty]: Start isEmpty. Operand 440191 states and 443103 transitions.
[2022-12-13 12:01:06,621 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3422
[2022-12-13 12:01:06,622 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 12:01:06,622 INFO  L195           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-13 12:01:06,623 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21
[2022-12-13 12:01:06,623 INFO  L420      AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 12:01:06,623 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 12:01:06,623 INFO  L85        PathProgramCache]: Analyzing trace with hash -1679416905, now seen corresponding path program 1 times
[2022-12-13 12:01:06,623 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 12:01:06,624 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922944336]
[2022-12-13 12:01:06,624 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 12:01:06,624 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 12:01:06,953 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 12:01:09,284 INFO  L134       CoverageAnalysis]: Checked inductivity of 4031 backedges. 2457 proven. 0 refuted. 0 times theorem prover too weak. 1574 trivial. 0 not checked.
[2022-12-13 12:01:09,284 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 12:01:09,285 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922944336]
[2022-12-13 12:01:09,285 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922944336] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 12:01:09,285 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 12:01:09,285 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-13 12:01:09,285 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295108283]
[2022-12-13 12:01:09,285 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 12:01:09,286 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 12:01:09,286 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 12:01:09,287 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 12:01:09,287 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 12:01:09,288 INFO  L87              Difference]: Start difference. First operand 440191 states and 443103 transitions. Second operand  has 3 states, 3 states have (on average 733.0) internal successors, (2199), 2 states have internal predecessors, (2199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:01:13,591 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 12:01:13,591 INFO  L93              Difference]: Finished difference Result 875260 states and 881073 transitions.
[2022-12-13 12:01:13,592 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 12:01:13,592 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 733.0) internal successors, (2199), 2 states have internal predecessors, (2199), 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 3421
[2022-12-13 12:01:13,593 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 12:01:14,109 INFO  L225             Difference]: With dead ends: 875260
[2022-12-13 12:01:14,109 INFO  L226             Difference]: Without dead ends: 435067
[2022-12-13 12:01:14,221 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 12:01:14,222 INFO  L413           NwaCegarLoop]: 353 mSDtfsCounter, 2270 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2471 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2270 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 2496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 2471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time
[2022-12-13 12:01:14,222 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2270 Valid, 353 Invalid, 2496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 2471 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time]
[2022-12-13 12:01:14,530 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 435067 states.
[2022-12-13 12:01:17,817 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 435067 to 435067.
[2022-12-13 12:01:17,998 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 435067 states, 435066 states have (on average 1.0065783122560714) internal successors, (437928), 435066 states have internal predecessors, (437928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:01:18,636 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 435067 states to 435067 states and 437928 transitions.
[2022-12-13 12:01:18,636 INFO  L78                 Accepts]: Start accepts. Automaton has 435067 states and 437928 transitions. Word has length 3421
[2022-12-13 12:01:18,637 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 12:01:18,637 INFO  L495      AbstractCegarLoop]: Abstraction has 435067 states and 437928 transitions.
[2022-12-13 12:01:18,638 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 733.0) internal successors, (2199), 2 states have internal predecessors, (2199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:01:18,638 INFO  L276                IsEmpty]: Start isEmpty. Operand 435067 states and 437928 transitions.
[2022-12-13 12:01:18,941 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3465
[2022-12-13 12:01:18,942 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 12:01:18,943 INFO  L195           NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-13 12:01:18,943 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22
[2022-12-13 12:01:18,943 INFO  L420      AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 12:01:18,943 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 12:01:18,944 INFO  L85        PathProgramCache]: Analyzing trace with hash 679009332, now seen corresponding path program 1 times
[2022-12-13 12:01:18,944 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 12:01:18,944 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392767374]
[2022-12-13 12:01:18,944 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 12:01:18,944 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 12:01:19,485 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 12:01:25,340 INFO  L134       CoverageAnalysis]: Checked inductivity of 5356 backedges. 3678 proven. 0 refuted. 0 times theorem prover too weak. 1678 trivial. 0 not checked.
[2022-12-13 12:01:25,341 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 12:01:25,341 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392767374]
[2022-12-13 12:01:25,341 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392767374] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 12:01:25,341 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 12:01:25,341 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-13 12:01:25,341 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160917386]
[2022-12-13 12:01:25,341 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 12:01:25,342 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 12:01:25,342 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 12:01:25,343 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 12:01:25,344 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 12:01:25,344 INFO  L87              Difference]: Start difference. First operand 435067 states and 437928 transitions. Second operand  has 3 states, 3 states have (on average 748.3333333333334) internal successors, (2245), 3 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:01:30,751 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 12:01:30,751 INFO  L93              Difference]: Finished difference Result 892209 states and 898112 transitions.
[2022-12-13 12:01:30,752 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 12:01:30,752 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 748.3333333333334) internal successors, (2245), 3 states have internal predecessors, (2245), 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 3464
[2022-12-13 12:01:30,753 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 12:01:31,267 INFO  L225             Difference]: With dead ends: 892209
[2022-12-13 12:01:31,267 INFO  L226             Difference]: Without dead ends: 455445
[2022-12-13 12:01:31,452 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 12:01:31,453 INFO  L413           NwaCegarLoop]: 2287 mSDtfsCounter, 1834 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 4267 mSolverCounterSat, 725 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1834 SdHoareTripleChecker+Valid, 2343 SdHoareTripleChecker+Invalid, 4992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 725 IncrementalHoareTripleChecker+Valid, 4267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time
[2022-12-13 12:01:31,453 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1834 Valid, 2343 Invalid, 4992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [725 Valid, 4267 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time]
[2022-12-13 12:01:31,834 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 455445 states.
[2022-12-13 12:01:35,452 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 455445 to 443546.
[2022-12-13 12:01:35,649 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 443546 states, 443545 states have (on average 1.0060940829002694) internal successors, (446248), 443545 states have internal predecessors, (446248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:01:36,270 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 443546 states to 443546 states and 446248 transitions.
[2022-12-13 12:01:36,270 INFO  L78                 Accepts]: Start accepts. Automaton has 443546 states and 446248 transitions. Word has length 3464
[2022-12-13 12:01:36,270 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 12:01:36,270 INFO  L495      AbstractCegarLoop]: Abstraction has 443546 states and 446248 transitions.
[2022-12-13 12:01:36,271 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 748.3333333333334) internal successors, (2245), 3 states have internal predecessors, (2245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:01:36,271 INFO  L276                IsEmpty]: Start isEmpty. Operand 443546 states and 446248 transitions.
[2022-12-13 12:01:36,785 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3685
[2022-12-13 12:01:36,785 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 12:01:36,786 INFO  L195           NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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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]
[2022-12-13 12:01:36,786 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23
[2022-12-13 12:01:36,786 INFO  L420      AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 12:01:36,786 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 12:01:36,787 INFO  L85        PathProgramCache]: Analyzing trace with hash -582390138, now seen corresponding path program 1 times
[2022-12-13 12:01:36,787 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 12:01:36,787 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189897213]
[2022-12-13 12:01:36,788 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 12:01:36,788 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 12:01:37,107 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 12:01:48,850 INFO  L134       CoverageAnalysis]: Checked inductivity of 6189 backedges. 2873 proven. 578 refuted. 0 times theorem prover too weak. 2738 trivial. 0 not checked.
[2022-12-13 12:01:48,850 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 12:01:48,851 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189897213]
[2022-12-13 12:01:48,851 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189897213] provided 0 perfect and 1 imperfect interpolant sequences
[2022-12-13 12:01:48,851 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1859855950]
[2022-12-13 12:01:48,851 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 12:01:48,851 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-12-13 12:01:48,851 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc366efa-0480-40be-a79a-f88a9a2e3573/bin/uautomizer-uyxdKDjOR8/z3
[2022-12-13 12:01:48,852 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc366efa-0480-40be-a79a-f88a9a2e3573/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-12-13 12:01:48,853 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc366efa-0480-40be-a79a-f88a9a2e3573/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2022-12-13 12:01:49,657 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 12:01:49,672 INFO  L263         TraceCheckSpWp]: Trace formula consists of 4144 conjuncts, 3 conjunts are in the unsatisfiable core
[2022-12-13 12:01:49,700 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-12-13 12:01:50,658 INFO  L134       CoverageAnalysis]: Checked inductivity of 6189 backedges. 3557 proven. 0 refuted. 0 times theorem prover too weak. 2632 trivial. 0 not checked.
[2022-12-13 12:01:50,658 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-12-13 12:01:50,659 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1859855950] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 12:01:50,659 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2022-12-13 12:01:50,659 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9
[2022-12-13 12:01:50,659 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773870430]
[2022-12-13 12:01:50,659 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 12:01:50,662 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 12:01:50,662 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 12:01:50,663 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 12:01:50,663 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72
[2022-12-13 12:01:50,664 INFO  L87              Difference]: Start difference. First operand 443546 states and 446248 transitions. Second operand  has 3 states, 3 states have (on average 889.3333333333334) internal successors, (2668), 3 states have internal predecessors, (2668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:01:55,428 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 12:01:55,428 INFO  L93              Difference]: Finished difference Result 895590 states and 901036 transitions.
[2022-12-13 12:01:55,428 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 12:01:55,429 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 889.3333333333334) internal successors, (2668), 3 states have internal predecessors, (2668), 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 3684
[2022-12-13 12:01:55,430 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 12:01:55,920 INFO  L225             Difference]: With dead ends: 895590
[2022-12-13 12:01:55,920 INFO  L226             Difference]: Without dead ends: 452046
[2022-12-13 12:01:56,093 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3693 GetRequests, 3686 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72
[2022-12-13 12:01:56,093 INFO  L413           NwaCegarLoop]: 2812 mSDtfsCounter, 1199 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 4384 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1199 SdHoareTripleChecker+Valid, 2982 SdHoareTripleChecker+Invalid, 4446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 4384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time
[2022-12-13 12:01:56,093 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1199 Valid, 2982 Invalid, 4446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 4384 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time]
[2022-12-13 12:01:56,462 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 452046 states.
[2022-12-13 12:01:59,989 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 452046 to 448640.
[2022-12-13 12:02:00,147 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 448640 states, 448639 states have (on average 1.0059847672627658) internal successors, (451324), 448639 states have internal predecessors, (451324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:02:00,852 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 448640 states to 448640 states and 451324 transitions.
[2022-12-13 12:02:00,853 INFO  L78                 Accepts]: Start accepts. Automaton has 448640 states and 451324 transitions. Word has length 3684
[2022-12-13 12:02:00,853 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 12:02:00,854 INFO  L495      AbstractCegarLoop]: Abstraction has 448640 states and 451324 transitions.
[2022-12-13 12:02:00,854 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 889.3333333333334) internal successors, (2668), 3 states have internal predecessors, (2668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:02:00,854 INFO  L276                IsEmpty]: Start isEmpty. Operand 448640 states and 451324 transitions.
[2022-12-13 12:02:01,178 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3749
[2022-12-13 12:02:01,178 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 12:02:01,179 INFO  L195           NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-13 12:02:01,186 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc366efa-0480-40be-a79a-f88a9a2e3573/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2022-12-13 12:02:01,380 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc366efa-0480-40be-a79a-f88a9a2e3573/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24
[2022-12-13 12:02:01,382 INFO  L420      AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 12:02:01,383 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 12:02:01,385 INFO  L85        PathProgramCache]: Analyzing trace with hash 1495846923, now seen corresponding path program 1 times
[2022-12-13 12:02:01,385 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 12:02:01,386 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030562580]
[2022-12-13 12:02:01,387 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 12:02:01,387 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 12:02:01,908 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 12:02:05,073 INFO  L134       CoverageAnalysis]: Checked inductivity of 5216 backedges. 3950 proven. 0 refuted. 0 times theorem prover too weak. 1266 trivial. 0 not checked.
[2022-12-13 12:02:05,073 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-12-13 12:02:05,073 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030562580]
[2022-12-13 12:02:05,073 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030562580] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 12:02:05,073 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 12:02:05,073 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-13 12:02:05,073 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031489756]
[2022-12-13 12:02:05,074 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 12:02:05,075 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 12:02:05,075 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-12-13 12:02:05,076 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 12:02:05,076 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 12:02:05,076 INFO  L87              Difference]: Start difference. First operand 448640 states and 451324 transitions. Second operand  has 3 states, 3 states have (on average 898.6666666666666) internal successors, (2696), 3 states have internal predecessors, (2696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:02:10,762 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-12-13 12:02:10,762 INFO  L93              Difference]: Finished difference Result 949932 states and 955804 transitions.
[2022-12-13 12:02:10,762 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-12-13 12:02:10,763 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 898.6666666666666) internal successors, (2696), 3 states have internal predecessors, (2696), 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 3748
[2022-12-13 12:02:10,763 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-12-13 12:02:11,364 INFO  L225             Difference]: With dead ends: 949932
[2022-12-13 12:02:11,364 INFO  L226             Difference]: Without dead ends: 501294
[2022-12-13 12:02:11,793 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 12:02:11,794 INFO  L413           NwaCegarLoop]: 2693 mSDtfsCounter, 1115 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 4472 mSolverCounterSat, 468 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1115 SdHoareTripleChecker+Valid, 2833 SdHoareTripleChecker+Invalid, 4940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 468 IncrementalHoareTripleChecker+Valid, 4472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time
[2022-12-13 12:02:11,794 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1115 Valid, 2833 Invalid, 4940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [468 Valid, 4472 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time]
[2022-12-13 12:02:12,133 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 501294 states.
[2022-12-13 12:02:15,728 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 501294 to 484273.
[2022-12-13 12:02:15,880 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 484273 states, 484272 states have (on average 1.005517560379291) internal successors, (486944), 484272 states have internal predecessors, (486944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:02:16,583 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 484273 states to 484273 states and 486944 transitions.
[2022-12-13 12:02:16,583 INFO  L78                 Accepts]: Start accepts. Automaton has 484273 states and 486944 transitions. Word has length 3748
[2022-12-13 12:02:16,584 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-12-13 12:02:16,584 INFO  L495      AbstractCegarLoop]: Abstraction has 484273 states and 486944 transitions.
[2022-12-13 12:02:16,585 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 898.6666666666666) internal successors, (2696), 3 states have internal predecessors, (2696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-12-13 12:02:16,585 INFO  L276                IsEmpty]: Start isEmpty. Operand 484273 states and 486944 transitions.
[2022-12-13 12:02:16,906 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 3784
[2022-12-13 12:02:16,907 INFO  L187           NwaCegarLoop]: Found error trace
[2022-12-13 12:02:16,907 INFO  L195           NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-12-13 12:02:16,907 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25
[2022-12-13 12:02:16,908 INFO  L420      AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2022-12-13 12:02:16,908 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 12:02:16,908 INFO  L85        PathProgramCache]: Analyzing trace with hash 230025555, now seen corresponding path program 1 times
[2022-12-13 12:02:16,908 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-12-13 12:02:16,908 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623164188]
[2022-12-13 12:02:16,909 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 12:02:16,909 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-12-13 12:02:17,394 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat