./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem12_label56.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version a0165632
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02661611-641d-4e5d-be0d-b10f91ea2853/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02661611-641d-4e5d-be0d-b10f91ea2853/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02661611-641d-4e5d-be0d-b10f91ea2853/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02661611-641d-4e5d-be0d-b10f91ea2853/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem12_label56.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02661611-641d-4e5d-be0d-b10f91ea2853/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02661611-641d-4e5d-be0d-b10f91ea2853/bin/uautomizer-verify-jihMAELWvX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2fec0dbf4b6ddb0b1603ab7a0ec8993384a9d6ffa347e857313f4dbf633d9cf3
--- Real Ultimate output ---
This is Ultimate 0.2.5-dev-a016563
[2024-11-08 17:46:33,949 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-08 17:46:34,075 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02661611-641d-4e5d-be0d-b10f91ea2853/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-08 17:46:34,084 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-08 17:46:34,085 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-08 17:46:34,135 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-08 17:46:34,138 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-08 17:46:34,139 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-08 17:46:34,140 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-08 17:46:34,142 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-08 17:46:34,142 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-08 17:46:34,143 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-08 17:46:34,144 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-08 17:46:34,144 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-08 17:46:34,147 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-08 17:46:34,148 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-08 17:46:34,148 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-08 17:46:34,149 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-08 17:46:34,149 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-08 17:46:34,150 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-08 17:46:34,150 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-08 17:46:34,155 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-08 17:46:34,156 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-08 17:46:34,156 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-08 17:46:34,157 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-08 17:46:34,157 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-08 17:46:34,157 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-08 17:46:34,158 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-08 17:46:34,158 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-08 17:46:34,158 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-08 17:46:34,159 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-08 17:46:34,159 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-08 17:46:34,160 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 17:46:34,161 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-08 17:46:34,162 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-08 17:46:34,162 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-08 17:46:34,163 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-08 17:46:34,163 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-08 17:46:34,164 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-08 17:46:34,164 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-08 17:46:34,164 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-08 17:46:34,165 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-08 17:46:34,165 INFO L153 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_02661611-641d-4e5d-be0d-b10f91ea2853/bin/uautomizer-verify-jihMAELWvX/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02661611-641d-4e5d-be0d-b10f91ea2853/bin/uautomizer-verify-jihMAELWvX
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2fec0dbf4b6ddb0b1603ab7a0ec8993384a9d6ffa347e857313f4dbf633d9cf3
[2024-11-08 17:46:34,529 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-08 17:46:34,558 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-08 17:46:34,561 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-08 17:46:34,563 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-08 17:46:34,563 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-08 17:46:34,565 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02661611-641d-4e5d-be0d-b10f91ea2853/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/eca-rers2012/Problem12_label56.c
Unable to find full path for "g++"
[2024-11-08 17:46:36,870 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-08 17:46:37,510 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-08 17:46:37,512 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02661611-641d-4e5d-be0d-b10f91ea2853/sv-benchmarks/c/eca-rers2012/Problem12_label56.c
[2024-11-08 17:46:37,563 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02661611-641d-4e5d-be0d-b10f91ea2853/bin/uautomizer-verify-jihMAELWvX/data/87c97aa4f/03539a06afa64593a2f9d99b7d66a15f/FLAGa875007fa
[2024-11-08 17:46:37,978 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02661611-641d-4e5d-be0d-b10f91ea2853/bin/uautomizer-verify-jihMAELWvX/data/87c97aa4f/03539a06afa64593a2f9d99b7d66a15f
[2024-11-08 17:46:37,983 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-08 17:46:37,985 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-08 17:46:37,990 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-08 17:46:37,990 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-08 17:46:37,998 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-08 17:46:37,999 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:46:37" (1/1) ...
[2024-11-08 17:46:38,000 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e74437a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:46:38, skipping insertion in model container
[2024-11-08 17:46:38,001 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:46:37" (1/1) ...
[2024-11-08 17:46:38,171 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-08 17:46:38,509 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02661611-641d-4e5d-be0d-b10f91ea2853/sv-benchmarks/c/eca-rers2012/Problem12_label56.c[6959,6972]
[2024-11-08 17:46:39,869 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 17:46:39,883 INFO L200 MainTranslator]: Completed pre-run
[2024-11-08 17:46:39,927 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02661611-641d-4e5d-be0d-b10f91ea2853/sv-benchmarks/c/eca-rers2012/Problem12_label56.c[6959,6972]
[2024-11-08 17:46:40,675 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 17:46:40,707 INFO L204 MainTranslator]: Completed translation
[2024-11-08 17:46:40,708 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:46:40 WrapperNode
[2024-11-08 17:46:40,709 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-08 17:46:40,710 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-08 17:46:40,710 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-08 17:46:40,710 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-08 17:46:40,720 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:46:40" (1/1) ...
[2024-11-08 17:46:40,799 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:46:40" (1/1) ...
[2024-11-08 17:46:41,167 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 4760
[2024-11-08 17:46:41,167 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-08 17:46:41,168 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-08 17:46:41,168 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-08 17:46:41,169 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-08 17:46:41,184 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:46:40" (1/1) ...
[2024-11-08 17:46:41,185 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:46:40" (1/1) ...
[2024-11-08 17:46:41,251 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:46:40" (1/1) ...
[2024-11-08 17:46:41,497 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-08 17:46:41,498 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:46:40" (1/1) ...
[2024-11-08 17:46:41,498 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:46:40" (1/1) ...
[2024-11-08 17:46:41,697 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:46:40" (1/1) ...
[2024-11-08 17:46:41,740 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:46:40" (1/1) ...
[2024-11-08 17:46:41,792 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:46:40" (1/1) ...
[2024-11-08 17:46:41,809 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:46:40" (1/1) ...
[2024-11-08 17:46:41,944 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-08 17:46:41,945 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-08 17:46:41,946 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-08 17:46:41,946 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-08 17:46:41,950 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:46:40" (1/1) ...
[2024-11-08 17:46:41,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 17:46:41,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02661611-641d-4e5d-be0d-b10f91ea2853/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:46:42,032 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02661611-641d-4e5d-be0d-b10f91ea2853/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-08 17:46:42,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02661611-641d-4e5d-be0d-b10f91ea2853/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-08 17:46:42,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-08 17:46:42,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-08 17:46:42,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-08 17:46:42,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-08 17:46:42,275 INFO L238 CfgBuilder]: Building ICFG
[2024-11-08 17:46:42,285 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-08 17:46:49,067 INFO L? ?]: Removed 702 outVars from TransFormulas that were not future-live.
[2024-11-08 17:46:49,069 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-08 17:46:49,127 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-08 17:46:49,127 INFO L316 CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-08 17:46:49,128 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:46:49 BoogieIcfgContainer
[2024-11-08 17:46:49,128 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-08 17:46:49,134 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-08 17:46:49,134 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-08 17:46:49,141 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-08 17:46:49,141 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:46:37" (1/3) ...
[2024-11-08 17:46:49,142 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c199537 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:46:49, skipping insertion in model container
[2024-11-08 17:46:49,142 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:46:40" (2/3) ...
[2024-11-08 17:46:49,144 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c199537 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:46:49, skipping insertion in model container
[2024-11-08 17:46:49,144 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:46:49" (3/3) ...
[2024-11-08 17:46:49,147 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label56.c
[2024-11-08 17:46:49,170 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-08 17:46:49,171 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-08 17:46:49,302 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-08 17:46:49,311 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5bc980a1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-08 17:46:49,312 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-08 17:46:49,321 INFO L276 IsEmpty]: Start isEmpty. Operand has 818 states, 816 states have (on average 1.9178921568627452) internal successors, (1565), 817 states have internal predecessors, (1565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:46:49,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57
[2024-11-08 17:46:49,332 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:46:49,333 INFO L215 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]
[2024-11-08 17:46:49,333 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:46:49,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:46:49,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1600093166, now seen corresponding path program 1 times
[2024-11-08 17:46:49,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:46:49,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487342940]
[2024-11-08 17:46:49,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:46:49,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:46:49,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:46:50,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:46:50,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:46:50,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487342940]
[2024-11-08 17:46:50,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487342940] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:46:50,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:46:50,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 17:46:50,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538529468]
[2024-11-08 17:46:50,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:46:50,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 17:46:50,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:46:50,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 17:46:50,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 17:46:50,091 INFO L87 Difference]: Start difference. First operand has 818 states, 816 states have (on average 1.9178921568627452) internal successors, (1565), 817 states have internal predecessors, (1565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:46:58,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:46:58,678 INFO L93 Difference]: Finished difference Result 3155 states and 6150 transitions.
[2024-11-08 17:46:58,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-11-08 17:46:58,681 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 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 56
[2024-11-08 17:46:58,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:46:58,713 INFO L225 Difference]: With dead ends: 3155
[2024-11-08 17:46:58,714 INFO L226 Difference]: Without dead ends: 2265
[2024-11-08 17:46:58,722 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:46:58,730 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 2384 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 3734 mSolverCounterSat, 1719 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2384 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 5453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1719 IncrementalHoareTripleChecker+Valid, 3734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time
[2024-11-08 17:46:58,733 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2384 Valid, 234 Invalid, 5453 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1719 Valid, 3734 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time]
[2024-11-08 17:46:58,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2265 states.
[2024-11-08 17:46:58,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2265 to 2257.
[2024-11-08 17:46:58,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2257 states, 2256 states have (on average 1.5350177304964538) internal successors, (3463), 2256 states have internal predecessors, (3463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:46:58,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2257 states to 2257 states and 3463 transitions.
[2024-11-08 17:46:58,977 INFO L78 Accepts]: Start accepts. Automaton has 2257 states and 3463 transitions. Word has length 56
[2024-11-08 17:46:58,979 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:46:58,980 INFO L471 AbstractCegarLoop]: Abstraction has 2257 states and 3463 transitions.
[2024-11-08 17:46:58,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:46:58,981 INFO L276 IsEmpty]: Start isEmpty. Operand 2257 states and 3463 transitions.
[2024-11-08 17:46:58,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197
[2024-11-08 17:46:58,990 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:46:58,990 INFO L215 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:46:58,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-08 17:46:58,991 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:46:58,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:46:58,993 INFO L85 PathProgramCache]: Analyzing trace with hash 428737335, now seen corresponding path program 1 times
[2024-11-08 17:46:58,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:46:58,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259422720]
[2024-11-08 17:46:58,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:46:58,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:46:59,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:47:00,014 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked.
[2024-11-08 17:47:00,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:47:00,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259422720]
[2024-11-08 17:47:00,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259422720] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:47:00,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:47:00,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 17:47:00,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247342841]
[2024-11-08 17:47:00,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:47:00,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 17:47:00,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:47:00,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 17:47:00,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-08 17:47:00,025 INFO L87 Difference]: Start difference. First operand 2257 states and 3463 transitions. Second operand has 4 states, 4 states have (on average 44.25) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:47:06,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:47:06,553 INFO L93 Difference]: Finished difference Result 6051 states and 9664 transitions.
[2024-11-08 17:47:06,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-08 17:47:06,554 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.25) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 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 196
[2024-11-08 17:47:06,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:47:06,568 INFO L225 Difference]: With dead ends: 6051
[2024-11-08 17:47:06,568 INFO L226 Difference]: Without dead ends: 3759
[2024-11-08 17:47:06,572 INFO L431 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
[2024-11-08 17:47:06,574 INFO L432 NwaCegarLoop]: 694 mSDtfsCounter, 702 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 3107 mSolverCounterSat, 729 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 702 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 3836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 729 IncrementalHoareTripleChecker+Valid, 3107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time
[2024-11-08 17:47:06,575 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [702 Valid, 708 Invalid, 3836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [729 Valid, 3107 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time]
[2024-11-08 17:47:06,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3759 states.
[2024-11-08 17:47:06,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3759 to 3759.
[2024-11-08 17:47:06,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3759 states, 3758 states have (on average 1.3408728046833422) internal successors, (5039), 3758 states have internal predecessors, (5039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:47:06,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3759 states to 3759 states and 5039 transitions.
[2024-11-08 17:47:06,672 INFO L78 Accepts]: Start accepts. Automaton has 3759 states and 5039 transitions. Word has length 196
[2024-11-08 17:47:06,672 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:47:06,673 INFO L471 AbstractCegarLoop]: Abstraction has 3759 states and 5039 transitions.
[2024-11-08 17:47:06,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.25) internal successors, (177), 3 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:47:06,673 INFO L276 IsEmpty]: Start isEmpty. Operand 3759 states and 5039 transitions.
[2024-11-08 17:47:06,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267
[2024-11-08 17:47:06,680 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:47:06,684 INFO L215 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, 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]
[2024-11-08 17:47:06,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-11-08 17:47:06,685 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:47:06,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:47:06,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1154669146, now seen corresponding path program 1 times
[2024-11-08 17:47:06,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:47:06,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284936582]
[2024-11-08 17:47:06,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:47:06,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:47:06,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:47:07,167 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked.
[2024-11-08 17:47:07,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:47:07,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284936582]
[2024-11-08 17:47:07,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284936582] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:47:07,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:47:07,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 17:47:07,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521657896]
[2024-11-08 17:47:07,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:47:07,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 17:47:07,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:47:07,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 17:47:07,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 17:47:07,175 INFO L87 Difference]: Start difference. First operand 3759 states and 5039 transitions. Second operand has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 2 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:47:11,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:47:11,149 INFO L93 Difference]: Finished difference Result 10520 states and 14356 transitions.
[2024-11-08 17:47:11,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-08 17:47:11,150 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 2 states have internal predecessors, (199), 0 states have call successors, (0), 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 266
[2024-11-08 17:47:11,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:47:11,173 INFO L225 Difference]: With dead ends: 10520
[2024-11-08 17:47:11,173 INFO L226 Difference]: Without dead ends: 6763
[2024-11-08 17:47:11,178 INFO L431 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
[2024-11-08 17:47:11,179 INFO L432 NwaCegarLoop]: 480 mSDtfsCounter, 669 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1989 mSolverCounterSat, 845 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 669 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 2834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 845 IncrementalHoareTripleChecker+Valid, 1989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time
[2024-11-08 17:47:11,180 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [669 Valid, 486 Invalid, 2834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [845 Valid, 1989 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time]
[2024-11-08 17:47:11,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6763 states.
[2024-11-08 17:47:11,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6763 to 6012.
[2024-11-08 17:47:11,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6012 states, 6011 states have (on average 1.2814839460988188) internal successors, (7703), 6011 states have internal predecessors, (7703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:47:11,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6012 states to 6012 states and 7703 transitions.
[2024-11-08 17:47:11,311 INFO L78 Accepts]: Start accepts. Automaton has 6012 states and 7703 transitions. Word has length 266
[2024-11-08 17:47:11,312 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:47:11,312 INFO L471 AbstractCegarLoop]: Abstraction has 6012 states and 7703 transitions.
[2024-11-08 17:47:11,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 2 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:47:11,313 INFO L276 IsEmpty]: Start isEmpty. Operand 6012 states and 7703 transitions.
[2024-11-08 17:47:11,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280
[2024-11-08 17:47:11,319 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:47:11,319 INFO L215 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, 2, 2, 2, 2, 2, 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]
[2024-11-08 17:47:11,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-08 17:47:11,320 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:47:11,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:47:11,321 INFO L85 PathProgramCache]: Analyzing trace with hash -616782496, now seen corresponding path program 1 times
[2024-11-08 17:47:11,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:47:11,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145106522]
[2024-11-08 17:47:11,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:47:11,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:47:11,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:47:12,070 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 107 proven. 54 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked.
[2024-11-08 17:47:12,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:47:12,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145106522]
[2024-11-08 17:47:12,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145106522] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:47:12,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1466351984]
[2024-11-08 17:47:12,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:47:12,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:47:12,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02661611-641d-4e5d-be0d-b10f91ea2853/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:47:12,077 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02661611-641d-4e5d-be0d-b10f91ea2853/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:47:12,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02661611-641d-4e5d-be0d-b10f91ea2853/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-08 17:47:12,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:47:12,260 INFO L255 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-08 17:47:12,270 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:47:12,491 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 188 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-08 17:47:12,491 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:47:12,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1466351984] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:47:12,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-08 17:47:12,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5
[2024-11-08 17:47:12,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354063]
[2024-11-08 17:47:12,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:47:12,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 17:47:12,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:47:12,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 17:47:12,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:47:12,498 INFO L87 Difference]: Start difference. First operand 6012 states and 7703 transitions. Second operand has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:47:16,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:47:16,564 INFO L93 Difference]: Finished difference Result 15026 states and 19934 transitions.
[2024-11-08 17:47:16,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-08 17:47:16,566 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 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 279
[2024-11-08 17:47:16,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:47:16,599 INFO L225 Difference]: With dead ends: 15026
[2024-11-08 17:47:16,599 INFO L226 Difference]: Without dead ends: 9016
[2024-11-08 17:47:16,609 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:47:16,610 INFO L432 NwaCegarLoop]: 303 mSDtfsCounter, 908 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2072 mSolverCounterSat, 703 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 908 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 2775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 703 IncrementalHoareTripleChecker+Valid, 2072 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time
[2024-11-08 17:47:16,611 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [908 Valid, 309 Invalid, 2775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [703 Valid, 2072 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time]
[2024-11-08 17:47:16,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9016 states.
[2024-11-08 17:47:16,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9016 to 9016.
[2024-11-08 17:47:16,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9016 states, 9015 states have (on average 1.2657792567942319) internal successors, (11411), 9015 states have internal predecessors, (11411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:47:16,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9016 states to 9016 states and 11411 transitions.
[2024-11-08 17:47:16,812 INFO L78 Accepts]: Start accepts. Automaton has 9016 states and 11411 transitions. Word has length 279
[2024-11-08 17:47:16,813 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:47:16,814 INFO L471 AbstractCegarLoop]: Abstraction has 9016 states and 11411 transitions.
[2024-11-08 17:47:16,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:47:16,814 INFO L276 IsEmpty]: Start isEmpty. Operand 9016 states and 11411 transitions.
[2024-11-08 17:47:16,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297
[2024-11-08 17:47:16,820 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:47:16,820 INFO L215 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-11-08 17:47:16,844 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02661611-641d-4e5d-be0d-b10f91ea2853/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-08 17:47:17,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02661611-641d-4e5d-be0d-b10f91ea2853/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3
[2024-11-08 17:47:17,025 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:47:17,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:47:17,026 INFO L85 PathProgramCache]: Analyzing trace with hash -873054725, now seen corresponding path program 1 times
[2024-11-08 17:47:17,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:47:17,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844558905]
[2024-11-08 17:47:17,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:47:17,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:47:17,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:47:17,617 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked.
[2024-11-08 17:47:17,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:47:17,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844558905]
[2024-11-08 17:47:17,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844558905] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:47:17,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:47:17,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 17:47:17,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958501262]
[2024-11-08 17:47:17,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:47:17,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 17:47:17,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:47:17,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 17:47:17,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 17:47:17,624 INFO L87 Difference]: Start difference. First operand 9016 states and 11411 transitions. Second operand has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:47:21,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:47:21,972 INFO L93 Difference]: Finished difference Result 21785 states and 27827 transitions.
[2024-11-08 17:47:21,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-08 17:47:21,973 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 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 296
[2024-11-08 17:47:21,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:47:22,022 INFO L225 Difference]: With dead ends: 21785
[2024-11-08 17:47:22,026 INFO L226 Difference]: Without dead ends: 12771
[2024-11-08 17:47:22,040 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 17:47:22,041 INFO L432 NwaCegarLoop]: 1208 mSDtfsCounter, 719 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2254 mSolverCounterSat, 525 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 719 SdHoareTripleChecker+Valid, 1216 SdHoareTripleChecker+Invalid, 2779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 525 IncrementalHoareTripleChecker+Valid, 2254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time
[2024-11-08 17:47:22,042 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [719 Valid, 1216 Invalid, 2779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [525 Valid, 2254 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time]
[2024-11-08 17:47:22,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12771 states.
[2024-11-08 17:47:22,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12771 to 12771.
[2024-11-08 17:47:22,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12771 states, 12770 states have (on average 1.183868441660141) internal successors, (15118), 12770 states have internal predecessors, (15118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:47:22,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12771 states to 12771 states and 15118 transitions.
[2024-11-08 17:47:22,312 INFO L78 Accepts]: Start accepts. Automaton has 12771 states and 15118 transitions. Word has length 296
[2024-11-08 17:47:22,312 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:47:22,313 INFO L471 AbstractCegarLoop]: Abstraction has 12771 states and 15118 transitions.
[2024-11-08 17:47:22,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:47:22,314 INFO L276 IsEmpty]: Start isEmpty. Operand 12771 states and 15118 transitions.
[2024-11-08 17:47:22,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384
[2024-11-08 17:47:22,322 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:47:22,322 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-11-08 17:47:22,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-08 17:47:22,323 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:47:22,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:47:22,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1003969335, now seen corresponding path program 1 times
[2024-11-08 17:47:22,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:47:22,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343950368]
[2024-11-08 17:47:22,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:47:22,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:47:22,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:47:22,862 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 360 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked.
[2024-11-08 17:47:22,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:47:22,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343950368]
[2024-11-08 17:47:22,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343950368] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:47:22,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:47:22,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 17:47:22,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147160647]
[2024-11-08 17:47:22,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:47:22,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 17:47:22,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:47:22,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 17:47:22,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 17:47:22,872 INFO L87 Difference]: Start difference. First operand 12771 states and 15118 transitions. Second operand has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:47:27,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:47:27,201 INFO L93 Difference]: Finished difference Result 36054 states and 43062 transitions.
[2024-11-08 17:47:27,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-08 17:47:27,202 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 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 383
[2024-11-08 17:47:27,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:47:27,243 INFO L225 Difference]: With dead ends: 36054
[2024-11-08 17:47:27,244 INFO L226 Difference]: Without dead ends: 23285
[2024-11-08 17:47:27,259 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 17:47:27,260 INFO L432 NwaCegarLoop]: 1215 mSDtfsCounter, 639 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2607 mSolverCounterSat, 397 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 639 SdHoareTripleChecker+Valid, 1223 SdHoareTripleChecker+Invalid, 3004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 397 IncrementalHoareTripleChecker+Valid, 2607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time
[2024-11-08 17:47:27,260 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [639 Valid, 1223 Invalid, 3004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [397 Valid, 2607 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time]
[2024-11-08 17:47:27,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23285 states.
[2024-11-08 17:47:27,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23285 to 22534.
[2024-11-08 17:47:27,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22534 states, 22533 states have (on average 1.1720143789109307) internal successors, (26409), 22533 states have internal predecessors, (26409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:47:27,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22534 states to 22534 states and 26409 transitions.
[2024-11-08 17:47:27,731 INFO L78 Accepts]: Start accepts. Automaton has 22534 states and 26409 transitions. Word has length 383
[2024-11-08 17:47:27,732 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:47:27,732 INFO L471 AbstractCegarLoop]: Abstraction has 22534 states and 26409 transitions.
[2024-11-08 17:47:27,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:47:27,733 INFO L276 IsEmpty]: Start isEmpty. Operand 22534 states and 26409 transitions.
[2024-11-08 17:47:27,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388
[2024-11-08 17:47:27,743 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:47:27,744 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-11-08 17:47:27,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-11-08 17:47:27,745 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:47:27,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:47:27,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1122345857, now seen corresponding path program 1 times
[2024-11-08 17:47:27,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:47:27,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061334159]
[2024-11-08 17:47:27,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:47:27,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:47:27,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:47:28,684 INFO L134 CoverageAnalysis]: Checked inductivity of 414 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked.
[2024-11-08 17:47:28,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:47:28,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061334159]
[2024-11-08 17:47:28,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061334159] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:47:28,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:47:28,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 17:47:28,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328715017]
[2024-11-08 17:47:28,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:47:28,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 17:47:28,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:47:28,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 17:47:28,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 17:47:28,688 INFO L87 Difference]: Start difference. First operand 22534 states and 26409 transitions. Second operand has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:47:32,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:47:32,409 INFO L93 Difference]: Finished difference Result 51074 states and 59608 transitions.
[2024-11-08 17:47:32,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-08 17:47:32,410 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 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 387
[2024-11-08 17:47:32,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:47:32,469 INFO L225 Difference]: With dead ends: 51074
[2024-11-08 17:47:32,469 INFO L226 Difference]: Without dead ends: 28542
[2024-11-08 17:47:32,491 INFO L431 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
[2024-11-08 17:47:32,492 INFO L432 NwaCegarLoop]: 961 mSDtfsCounter, 784 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2146 mSolverCounterSat, 572 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 784 SdHoareTripleChecker+Valid, 969 SdHoareTripleChecker+Invalid, 2718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 572 IncrementalHoareTripleChecker+Valid, 2146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time
[2024-11-08 17:47:32,492 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [784 Valid, 969 Invalid, 2718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [572 Valid, 2146 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time]
[2024-11-08 17:47:32,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28542 states.
[2024-11-08 17:47:32,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28542 to 27040.
[2024-11-08 17:47:32,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27040 states, 27039 states have (on average 1.144716890417545) internal successors, (30952), 27039 states have internal predecessors, (30952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:47:32,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27040 states to 27040 states and 30952 transitions.
[2024-11-08 17:47:32,887 INFO L78 Accepts]: Start accepts. Automaton has 27040 states and 30952 transitions. Word has length 387
[2024-11-08 17:47:32,887 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:47:32,888 INFO L471 AbstractCegarLoop]: Abstraction has 27040 states and 30952 transitions.
[2024-11-08 17:47:32,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:47:32,888 INFO L276 IsEmpty]: Start isEmpty. Operand 27040 states and 30952 transitions.
[2024-11-08 17:47:32,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 490
[2024-11-08 17:47:32,903 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:47:32,903 INFO L215 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-11-08 17:47:32,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-11-08 17:47:32,905 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:47:32,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:47:32,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1258208298, now seen corresponding path program 1 times
[2024-11-08 17:47:32,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:47:32,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744973650]
[2024-11-08 17:47:32,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:47:32,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:47:33,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:47:33,619 INFO L134 CoverageAnalysis]: Checked inductivity of 706 backedges. 574 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked.
[2024-11-08 17:47:33,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:47:33,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744973650]
[2024-11-08 17:47:33,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744973650] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:47:33,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:47:33,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 17:47:33,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799157129]
[2024-11-08 17:47:33,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:47:33,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 17:47:33,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:47:33,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 17:47:33,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 17:47:33,625 INFO L87 Difference]: Start difference. First operand 27040 states and 30952 transitions. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:47:38,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:47:38,070 INFO L93 Difference]: Finished difference Result 54829 states and 62659 transitions.
[2024-11-08 17:47:38,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-08 17:47:38,071 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 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 489
[2024-11-08 17:47:38,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:47:38,119 INFO L225 Difference]: With dead ends: 54829
[2024-11-08 17:47:38,120 INFO L226 Difference]: Without dead ends: 27791
[2024-11-08 17:47:38,141 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 17:47:38,142 INFO L432 NwaCegarLoop]: 263 mSDtfsCounter, 663 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2285 mSolverCounterSat, 620 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 663 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 2905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 620 IncrementalHoareTripleChecker+Valid, 2285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time
[2024-11-08 17:47:38,143 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [663 Valid, 269 Invalid, 2905 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [620 Valid, 2285 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time]
[2024-11-08 17:47:38,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27791 states.
[2024-11-08 17:47:38,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27791 to 27040.
[2024-11-08 17:47:38,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27040 states, 27039 states have (on average 1.1338437072376937) internal successors, (30658), 27039 states have internal predecessors, (30658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:47:38,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27040 states to 27040 states and 30658 transitions.
[2024-11-08 17:47:38,663 INFO L78 Accepts]: Start accepts. Automaton has 27040 states and 30658 transitions. Word has length 489
[2024-11-08 17:47:38,664 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:47:38,664 INFO L471 AbstractCegarLoop]: Abstraction has 27040 states and 30658 transitions.
[2024-11-08 17:47:38,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:47:38,665 INFO L276 IsEmpty]: Start isEmpty. Operand 27040 states and 30658 transitions.
[2024-11-08 17:47:38,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501
[2024-11-08 17:47:38,686 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:47:38,687 INFO L215 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-11-08 17:47:38,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-11-08 17:47:38,687 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:47:38,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:47:38,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1158396011, now seen corresponding path program 1 times
[2024-11-08 17:47:38,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:47:38,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686562215]
[2024-11-08 17:47:38,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:47:38,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:47:38,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:47:39,713 INFO L134 CoverageAnalysis]: Checked inductivity of 724 backedges. 396 proven. 230 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked.
[2024-11-08 17:47:39,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:47:39,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686562215]
[2024-11-08 17:47:39,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686562215] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:47:39,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1717461391]
[2024-11-08 17:47:39,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:47:39,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:47:39,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02661611-641d-4e5d-be0d-b10f91ea2853/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:47:39,717 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02661611-641d-4e5d-be0d-b10f91ea2853/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:47:39,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02661611-641d-4e5d-be0d-b10f91ea2853/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-08 17:47:39,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:47:39,980 INFO L255 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-08 17:47:39,987 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:47:40,300 INFO L134 CoverageAnalysis]: Checked inductivity of 724 backedges. 585 proven. 0 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked.
[2024-11-08 17:47:40,300 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:47:40,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1717461391] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:47:40,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-08 17:47:40,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5
[2024-11-08 17:47:40,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928518785]
[2024-11-08 17:47:40,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:47:40,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 17:47:40,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:47:40,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 17:47:40,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:47:40,305 INFO L87 Difference]: Start difference. First operand 27040 states and 30658 transitions. Second operand has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:47:45,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:47:45,184 INFO L93 Difference]: Finished difference Result 72102 states and 82464 transitions.
[2024-11-08 17:47:45,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-08 17:47:45,184 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 0 states have call successors, (0), 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 500
[2024-11-08 17:47:45,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:47:45,247 INFO L225 Difference]: With dead ends: 72102
[2024-11-08 17:47:45,248 INFO L226 Difference]: Without dead ends: 45064
[2024-11-08 17:47:45,270 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 503 GetRequests, 500 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-08 17:47:45,271 INFO L432 NwaCegarLoop]: 1046 mSDtfsCounter, 665 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2347 mSolverCounterSat, 707 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 665 SdHoareTripleChecker+Valid, 1053 SdHoareTripleChecker+Invalid, 3054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 707 IncrementalHoareTripleChecker+Valid, 2347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time
[2024-11-08 17:47:45,271 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [665 Valid, 1053 Invalid, 3054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [707 Valid, 2347 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time]
[2024-11-08 17:47:45,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45064 states.
[2024-11-08 17:47:45,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45064 to 45064.
[2024-11-08 17:47:45,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45064 states, 45063 states have (on average 1.141291081374964) internal successors, (51430), 45063 states have internal predecessors, (51430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:47:45,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45064 states to 45064 states and 51430 transitions.
[2024-11-08 17:47:45,812 INFO L78 Accepts]: Start accepts. Automaton has 45064 states and 51430 transitions. Word has length 500
[2024-11-08 17:47:45,813 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:47:45,814 INFO L471 AbstractCegarLoop]: Abstraction has 45064 states and 51430 transitions.
[2024-11-08 17:47:45,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:47:45,814 INFO L276 IsEmpty]: Start isEmpty. Operand 45064 states and 51430 transitions.
[2024-11-08 17:47:45,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 510
[2024-11-08 17:47:45,828 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:47:45,828 INFO L215 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-11-08 17:47:45,851 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02661611-641d-4e5d-be0d-b10f91ea2853/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-08 17:47:46,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02661611-641d-4e5d-be0d-b10f91ea2853/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:47:46,029 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:47:46,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:47:46,030 INFO L85 PathProgramCache]: Analyzing trace with hash -866648228, now seen corresponding path program 1 times
[2024-11-08 17:47:46,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:47:46,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821117827]
[2024-11-08 17:47:46,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:47:46,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:47:46,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:47:46,660 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 594 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked.
[2024-11-08 17:47:46,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:47:46,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821117827]
[2024-11-08 17:47:46,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821117827] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:47:46,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:47:46,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 17:47:46,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57609693]
[2024-11-08 17:47:46,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:47:46,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 17:47:46,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:47:46,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 17:47:46,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 17:47:46,664 INFO L87 Difference]: Start difference. First operand 45064 states and 51430 transitions. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:47:51,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:47:51,148 INFO L93 Difference]: Finished difference Result 107399 states and 121876 transitions.
[2024-11-08 17:47:51,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-08 17:47:51,148 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 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 509
[2024-11-08 17:47:51,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:47:51,280 INFO L225 Difference]: With dead ends: 107399
[2024-11-08 17:47:51,281 INFO L226 Difference]: Without dead ends: 61586
[2024-11-08 17:47:51,309 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 17:47:51,310 INFO L432 NwaCegarLoop]: 1067 mSDtfsCounter, 732 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2109 mSolverCounterSat, 658 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 1074 SdHoareTripleChecker+Invalid, 2767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 658 IncrementalHoareTripleChecker+Valid, 2109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time
[2024-11-08 17:47:51,312 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [732 Valid, 1074 Invalid, 2767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [658 Valid, 2109 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time]
[2024-11-08 17:47:51,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61586 states.
[2024-11-08 17:47:51,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61586 to 55578.
[2024-11-08 17:47:52,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55578 states, 55577 states have (on average 1.1048275365708837) internal successors, (61403), 55577 states have internal predecessors, (61403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:47:52,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55578 states to 55578 states and 61403 transitions.
[2024-11-08 17:47:52,080 INFO L78 Accepts]: Start accepts. Automaton has 55578 states and 61403 transitions. Word has length 509
[2024-11-08 17:47:52,080 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:47:52,080 INFO L471 AbstractCegarLoop]: Abstraction has 55578 states and 61403 transitions.
[2024-11-08 17:47:52,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:47:52,080 INFO L276 IsEmpty]: Start isEmpty. Operand 55578 states and 61403 transitions.
[2024-11-08 17:47:52,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 561
[2024-11-08 17:47:52,099 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:47:52,099 INFO L215 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-11-08 17:47:52,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-11-08 17:47:52,100 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:47:52,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:47:52,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1167274761, now seen corresponding path program 1 times
[2024-11-08 17:47:52,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:47:52,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071654633]
[2024-11-08 17:47:52,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:47:52,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:47:52,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:47:52,959 INFO L134 CoverageAnalysis]: Checked inductivity of 789 backedges. 617 proven. 0 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked.
[2024-11-08 17:47:52,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:47:52,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071654633]
[2024-11-08 17:47:52,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071654633] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:47:52,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:47:52,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 17:47:52,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721051302]
[2024-11-08 17:47:52,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:47:52,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 17:47:52,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:47:52,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 17:47:52,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 17:47:52,963 INFO L87 Difference]: Start difference. First operand 55578 states and 61403 transitions. Second operand has 3 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:47:57,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:47:57,897 INFO L93 Difference]: Finished difference Result 144198 states and 159788 transitions.
[2024-11-08 17:47:57,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-08 17:47:57,898 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 0 states have call successors, (0), 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 560
[2024-11-08 17:47:57,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:47:58,016 INFO L225 Difference]: With dead ends: 144198
[2024-11-08 17:47:58,016 INFO L226 Difference]: Without dead ends: 89373
[2024-11-08 17:47:58,054 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 17:47:58,055 INFO L432 NwaCegarLoop]: 454 mSDtfsCounter, 617 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2266 mSolverCounterSat, 647 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 617 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 2913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 647 IncrementalHoareTripleChecker+Valid, 2266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time
[2024-11-08 17:47:58,056 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [617 Valid, 461 Invalid, 2913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [647 Valid, 2266 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time]
[2024-11-08 17:47:58,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89373 states.
[2024-11-08 17:47:59,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89373 to 87120.
[2024-11-08 17:47:59,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87120 states, 87119 states have (on average 1.0904280352161986) internal successors, (94997), 87119 states have internal predecessors, (94997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:47:59,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87120 states to 87120 states and 94997 transitions.
[2024-11-08 17:47:59,441 INFO L78 Accepts]: Start accepts. Automaton has 87120 states and 94997 transitions. Word has length 560
[2024-11-08 17:47:59,442 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:47:59,442 INFO L471 AbstractCegarLoop]: Abstraction has 87120 states and 94997 transitions.
[2024-11-08 17:47:59,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:47:59,442 INFO L276 IsEmpty]: Start isEmpty. Operand 87120 states and 94997 transitions.
[2024-11-08 17:47:59,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 573
[2024-11-08 17:47:59,695 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:47:59,696 INFO L215 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 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]
[2024-11-08 17:47:59,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-11-08 17:47:59,696 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:47:59,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:47:59,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1262525835, now seen corresponding path program 1 times
[2024-11-08 17:47:59,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:47:59,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074489648]
[2024-11-08 17:47:59,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:47:59,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:47:59,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:48:00,926 INFO L134 CoverageAnalysis]: Checked inductivity of 805 backedges. 619 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked.
[2024-11-08 17:48:00,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:48:00,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074489648]
[2024-11-08 17:48:00,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074489648] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:48:00,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:48:00,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 17:48:00,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178252563]
[2024-11-08 17:48:00,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:48:00,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 17:48:00,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:48:00,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 17:48:00,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 17:48:00,931 INFO L87 Difference]: Start difference. First operand 87120 states and 94997 transitions. Second operand has 3 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:48:05,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:48:05,791 INFO L93 Difference]: Finished difference Result 193764 states and 211555 transitions.
[2024-11-08 17:48:05,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-08 17:48:05,792 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 0 states have call successors, (0), 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 572
[2024-11-08 17:48:05,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:48:05,935 INFO L225 Difference]: With dead ends: 193764
[2024-11-08 17:48:05,935 INFO L226 Difference]: Without dead ends: 107397
[2024-11-08 17:48:05,972 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 17:48:05,973 INFO L432 NwaCegarLoop]: 1281 mSDtfsCounter, 583 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2331 mSolverCounterSat, 422 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 1288 SdHoareTripleChecker+Invalid, 2753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 422 IncrementalHoareTripleChecker+Valid, 2331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time
[2024-11-08 17:48:05,974 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [583 Valid, 1288 Invalid, 2753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [422 Valid, 2331 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time]
[2024-11-08 17:48:06,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107397 states.
[2024-11-08 17:48:07,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107397 to 104393.
[2024-11-08 17:48:07,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104393 states, 104392 states have (on average 1.0831864510690474) internal successors, (113076), 104392 states have internal predecessors, (113076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:48:08,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104393 states to 104393 states and 113076 transitions.
[2024-11-08 17:48:08,015 INFO L78 Accepts]: Start accepts. Automaton has 104393 states and 113076 transitions. Word has length 572
[2024-11-08 17:48:08,015 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:48:08,015 INFO L471 AbstractCegarLoop]: Abstraction has 104393 states and 113076 transitions.
[2024-11-08 17:48:08,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:48:08,016 INFO L276 IsEmpty]: Start isEmpty. Operand 104393 states and 113076 transitions.
[2024-11-08 17:48:08,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 816
[2024-11-08 17:48:08,048 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:48:08,048 INFO L215 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:48:08,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2024-11-08 17:48:08,049 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:48:08,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:48:08,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1202850217, now seen corresponding path program 1 times
[2024-11-08 17:48:08,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:48:08,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433635450]
[2024-11-08 17:48:08,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:48:08,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:48:08,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:48:08,994 INFO L134 CoverageAnalysis]: Checked inductivity of 1604 backedges. 789 proven. 0 refuted. 0 times theorem prover too weak. 815 trivial. 0 not checked.
[2024-11-08 17:48:08,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:48:08,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433635450]
[2024-11-08 17:48:08,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433635450] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:48:08,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:48:09,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 17:48:09,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445248606]
[2024-11-08 17:48:09,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:48:09,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 17:48:09,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:48:09,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 17:48:09,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 17:48:09,005 INFO L87 Difference]: Start difference. First operand 104393 states and 113076 transitions. Second operand has 3 states, 3 states have (on average 123.33333333333333) internal successors, (370), 3 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:48:13,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:48:13,677 INFO L93 Difference]: Finished difference Result 208782 states and 226253 transitions.
[2024-11-08 17:48:13,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-08 17:48:13,677 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 123.33333333333333) internal successors, (370), 3 states have internal predecessors, (370), 0 states have call successors, (0), 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 815
[2024-11-08 17:48:13,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:48:13,679 INFO L225 Difference]: With dead ends: 208782
[2024-11-08 17:48:13,679 INFO L226 Difference]: Without dead ends: 0
[2024-11-08 17:48:13,718 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 17:48:13,719 INFO L432 NwaCegarLoop]: 1106 mSDtfsCounter, 687 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2194 mSolverCounterSat, 340 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 687 SdHoareTripleChecker+Valid, 1113 SdHoareTripleChecker+Invalid, 2534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 340 IncrementalHoareTripleChecker+Valid, 2194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time
[2024-11-08 17:48:13,720 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [687 Valid, 1113 Invalid, 2534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [340 Valid, 2194 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time]
[2024-11-08 17:48:13,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-11-08 17:48:13,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-11-08 17:48:13,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:48:13,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-11-08 17:48:13,721 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 815
[2024-11-08 17:48:13,722 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:48:13,722 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-11-08 17:48:13,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 123.33333333333333) internal successors, (370), 3 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-08 17:48:13,722 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-11-08 17:48:13,723 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2024-11-08 17:48:13,725 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-11-08 17:48:13,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2024-11-08 17:48:13,730 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:48:13,733 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2024-11-08 17:48:18,088 INFO L170 ceAbstractionStarter]: Computing trace abstraction results
[2024-11-08 17:48:18,121 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 05:48:18 BoogieIcfgContainer
[2024-11-08 17:48:18,121 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-11-08 17:48:18,122 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-11-08 17:48:18,122 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-11-08 17:48:18,122 INFO L274 PluginConnector]: Witness Printer initialized
[2024-11-08 17:48:18,123 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:46:49" (3/4) ...
[2024-11-08 17:48:18,126 INFO L142 WitnessPrinter]: Generating witness for correct program
[2024-11-08 17:48:18,192 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges
[2024-11-08 17:48:18,199 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2024-11-08 17:48:18,205 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges
[2024-11-08 17:48:18,212 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2024-11-08 17:48:18,701 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02661611-641d-4e5d-be0d-b10f91ea2853/bin/uautomizer-verify-jihMAELWvX/witness.graphml
[2024-11-08 17:48:18,702 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02661611-641d-4e5d-be0d-b10f91ea2853/bin/uautomizer-verify-jihMAELWvX/witness.yml
[2024-11-08 17:48:18,702 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-11-08 17:48:18,704 INFO L158 Benchmark]: Toolchain (without parser) took 100718.23ms. Allocated memory was 153.1MB in the beginning and 7.8GB in the end (delta: 7.6GB). Free memory was 101.3MB in the beginning and 6.3GB in the end (delta: -6.2GB). Peak memory consumption was 1.4GB. Max. memory is 16.1GB.
[2024-11-08 17:48:18,704 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 111.1MB. Free memory is still 85.7MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-08 17:48:18,704 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2719.49ms. Allocated memory is still 153.1MB. Free memory was 100.7MB in the beginning and 82.2MB in the end (delta: 18.5MB). Peak memory consumption was 79.9MB. Max. memory is 16.1GB.
[2024-11-08 17:48:18,705 INFO L158 Benchmark]: Boogie Procedure Inliner took 457.65ms. Allocated memory was 153.1MB in the beginning and 216.0MB in the end (delta: 62.9MB). Free memory was 82.2MB in the beginning and 102.0MB in the end (delta: -19.8MB). Peak memory consumption was 54.7MB. Max. memory is 16.1GB.
[2024-11-08 17:48:18,706 INFO L158 Benchmark]: Boogie Preprocessor took 776.32ms. Allocated memory is still 216.0MB. Free memory was 102.0MB in the beginning and 97.1MB in the end (delta: 5.0MB). Peak memory consumption was 57.7MB. Max. memory is 16.1GB.
[2024-11-08 17:48:18,706 INFO L158 Benchmark]: RCFGBuilder took 7182.71ms. Allocated memory was 216.0MB in the beginning and 494.9MB in the end (delta: 278.9MB). Free memory was 97.1MB in the beginning and 233.1MB in the end (delta: -136.0MB). Peak memory consumption was 192.1MB. Max. memory is 16.1GB.
[2024-11-08 17:48:18,707 INFO L158 Benchmark]: TraceAbstraction took 88987.13ms. Allocated memory was 494.9MB in the beginning and 7.8GB in the end (delta: 7.3GB). Free memory was 233.1MB in the beginning and 6.4GB in the end (delta: -6.2GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB.
[2024-11-08 17:48:18,707 INFO L158 Benchmark]: Witness Printer took 580.92ms. Allocated memory is still 7.8GB. Free memory was 6.4GB in the beginning and 6.3GB in the end (delta: 69.2MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB.
[2024-11-08 17:48:18,710 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.34ms. Allocated memory is still 111.1MB. Free memory is still 85.7MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 2719.49ms. Allocated memory is still 153.1MB. Free memory was 100.7MB in the beginning and 82.2MB in the end (delta: 18.5MB). Peak memory consumption was 79.9MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 457.65ms. Allocated memory was 153.1MB in the beginning and 216.0MB in the end (delta: 62.9MB). Free memory was 82.2MB in the beginning and 102.0MB in the end (delta: -19.8MB). Peak memory consumption was 54.7MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 776.32ms. Allocated memory is still 216.0MB. Free memory was 102.0MB in the beginning and 97.1MB in the end (delta: 5.0MB). Peak memory consumption was 57.7MB. Max. memory is 16.1GB.
* RCFGBuilder took 7182.71ms. Allocated memory was 216.0MB in the beginning and 494.9MB in the end (delta: 278.9MB). Free memory was 97.1MB in the beginning and 233.1MB in the end (delta: -136.0MB). Peak memory consumption was 192.1MB. Max. memory is 16.1GB.
* TraceAbstraction took 88987.13ms. Allocated memory was 494.9MB in the beginning and 7.8GB in the end (delta: 7.3GB). Free memory was 233.1MB in the beginning and 6.4GB in the end (delta: -6.2GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB.
* Witness Printer took 580.92ms. Allocated memory is still 7.8GB. Free memory was 6.4GB in the beginning and 6.3GB in the end (delta: 69.2MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- PositiveResult [Line: 190]: a call to reach_error is unreachable
For all program executions holds that a call to reach_error is unreachable at this location
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 818 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 84.5s, OverallIterations: 13, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.4s, AutomataDifference: 65.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10752 SdHoareTripleChecker+Valid, 58.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10752 mSDsluCounter, 10403 SdHoareTripleChecker+Invalid, 49.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 117 mSDsCounter, 8884 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 31441 IncrementalHoareTripleChecker+Invalid, 40325 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8884 mSolverCounterUnsat, 10286 mSDtfsCounter, 31441 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 820 GetRequests, 800 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=104393occurred in iteration=12, InterpolantAutomatonStates: 42, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 7.0s AutomataMinimizationTime, 13 MinimizatonAttempts, 15028 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 8.9s InterpolantComputationTime, 6087 NumberOfCodeBlocks, 6087 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 6072 ConstructedInterpolants, 0 QuantifiedInterpolants, 15129 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1035 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 15 InterpolantComputations, 13 PerfectInterpolantSequences, 7573/7857 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
- InvariantResult [Line: 4828]: Loop Invariant
Derived loop invariant: ((((((((((((a7 <= 13) && (5 == a5)) || (((0 <= ((long long) a17 + 107)) && (a2 <= 189)) && (a17 <= 111))) || (((a2 <= 170) && (a7 == 13)) && (((long long) a17 + 124) <= 0))) || ((a5 != 4) && (a2 <= 189))) || (((0 <= ((long long) a17 + 107)) && (a2 <= 189)) && (a24 != 14))) || (((a24 <= 14) && (14 <= a7)) && (a2 <= 189))) || (((a24 <= 14) && (256 <= a17)) && (a24 != 14))) || ((a24 <= 14) && (5 == a5))) || (((a24 <= 14) && (14 <= a7)) && (a24 != 14))) || (((a24 <= 14) && (a17 <= 111)) && (a24 != 14))) || ((a5 <= 4) && (190 <= a2)))
RESULT: Ultimate proved your program to be correct!
[2024-11-08 17:48:18,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02661611-641d-4e5d-be0d-b10f91ea2853/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE