./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness.i --full-output --architecture 64bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version d790fecc
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a0dd09971efa7db826882d7e7ad0499c235114631ef797adfcc295e8a3fc3e13
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-d790fec
[2024-12-02 06:50:02,223 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-12-02 06:50:02,280 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf
[2024-12-02 06:50:02,284 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-12-02 06:50:02,284 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-12-02 06:50:02,304 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-12-02 06:50:02,305 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-12-02 06:50:02,305 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-12-02 06:50:02,305 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-12-02 06:50:02,306 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-12-02 06:50:02,306 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-12-02 06:50:02,306 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-12-02 06:50:02,306 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-12-02 06:50:02,306 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-12-02 06:50:02,306 INFO L153 SettingsManager]: * Use SBE=true
[2024-12-02 06:50:02,306 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-12-02 06:50:02,307 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-12-02 06:50:02,307 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-12-02 06:50:02,307 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-12-02 06:50:02,307 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-12-02 06:50:02,307 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-12-02 06:50:02,307 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-12-02 06:50:02,307 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-12-02 06:50:02,307 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-12-02 06:50:02,307 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-12-02 06:50:02,307 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults:
[2024-12-02 06:50:02,307 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 06:50:02,308 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 06:50:02,308 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 06:50:02,308 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 06:50:02,308 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-12-02 06:50:02,308 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-12-02 06:50:02,308 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-12-02 06:50:02,308 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-12-02 06:50:02,308 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 06:50:02,308 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-12-02 06:50:02,308 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-12-02 06:50:02,308 INFO L153 SettingsManager]: * Compute procedure contracts=false
[2024-12-02 06:50:02,309 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-12-02 06:50:02,309 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-12-02 06:50:02,309 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-12-02 06:50:02,309 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-12-02 06:50:02,309 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-12-02 06:50:02,309 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-12-02 06:50:02,309 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-12-02 06:50:02,309 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a0dd09971efa7db826882d7e7ad0499c235114631ef797adfcc295e8a3fc3e13
[2024-12-02 06:50:02,542 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-12-02 06:50:02,550 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-12-02 06:50:02,552 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-12-02 06:50:02,553 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-12-02 06:50:02,554 INFO L274 PluginConnector]: CDTParser initialized
[2024-12-02 06:50:02,555 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness.i
[2024-12-02 06:50:05,228 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1/data/711352f70/96b35c40713c4a04aa06ba8ea11964a3/FLAGa716d39d8
[2024-12-02 06:50:05,650 INFO L384 CDTParser]: Found 1 translation units.
[2024-12-02 06:50:05,651 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness.i
[2024-12-02 06:50:05,680 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1/data/711352f70/96b35c40713c4a04aa06ba8ea11964a3/FLAGa716d39d8
[2024-12-02 06:50:05,778 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1/data/711352f70/96b35c40713c4a04aa06ba8ea11964a3
[2024-12-02 06:50:05,780 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-12-02 06:50:05,782 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-12-02 06:50:05,783 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-12-02 06:50:05,783 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-12-02 06:50:05,786 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-12-02 06:50:05,786 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:50:05" (1/1) ...
[2024-12-02 06:50:05,787 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c53993b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:50:05, skipping insertion in model container
[2024-12-02 06:50:05,787 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:50:05" (1/1) ...
[2024-12-02 06:50:05,857 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-12-02 06:50:06,050 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_60d257c9-b555-4d67-b40d-8096fce72d29/sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness.i[4497,4510]
[2024-12-02 06:50:06,055 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_60d257c9-b555-4d67-b40d-8096fce72d29/sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness.i[4557,4570]
[2024-12-02 06:50:06,939 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 06:50:06,940 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 06:50:06,940 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 06:50:06,941 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 06:50:06,941 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 06:50:06,954 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 06:50:06,955 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 06:50:06,956 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 06:50:06,957 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 06:50:06,958 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 06:50:06,959 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 06:50:06,959 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 06:50:06,960 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 06:50:07,865 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 06:50:07,866 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 06:50:07,884 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 06:50:07,885 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 06:50:07,890 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 06:50:07,890 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 06:50:07,902 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 06:50:07,902 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 06:50:07,902 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 06:50:07,903 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 06:50:07,903 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 06:50:07,903 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 06:50:07,903 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 06:50:07,929 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_60d257c9-b555-4d67-b40d-8096fce72d29/sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness.i[228346,228359]
[2024-12-02 06:50:07,930 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 06:50:07,954 INFO L200 MainTranslator]: Completed pre-run
[2024-12-02 06:50:07,964 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_60d257c9-b555-4d67-b40d-8096fce72d29/sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness.i[4497,4510]
[2024-12-02 06:50:07,964 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_60d257c9-b555-4d67-b40d-8096fce72d29/sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness.i[4557,4570]
[2024-12-02 06:50:08,000 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 06:50:08,000 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 06:50:08,001 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 06:50:08,001 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 06:50:08,001 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 06:50:08,007 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 06:50:08,007 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 06:50:08,008 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 06:50:08,008 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 06:50:08,009 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 06:50:08,010 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 06:50:08,010 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 06:50:08,010 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 06:50:08,072 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__(""
:
: "r"(pBuf)
: "memory"); [7585-7596]
[2024-12-02 06:50:08,153 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 06:50:08,153 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 06:50:08,159 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 06:50:08,159 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 06:50:08,161 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 06:50:08,161 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 06:50:08,169 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 06:50:08,170 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 06:50:08,170 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 06:50:08,170 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 06:50:08,171 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 06:50:08,171 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 06:50:08,171 WARN L1675 CHandler]: Possible shadowing of function index
[2024-12-02 06:50:08,187 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_60d257c9-b555-4d67-b40d-8096fce72d29/sv-benchmarks/c/aws-c-common/aws_hash_table_clean_up_harness.i[228346,228359]
[2024-12-02 06:50:08,187 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-12-02 06:50:08,363 INFO L204 MainTranslator]: Completed translation
[2024-12-02 06:50:08,364 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:50:08 WrapperNode
[2024-12-02 06:50:08,364 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-12-02 06:50:08,365 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-12-02 06:50:08,365 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-12-02 06:50:08,365 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-12-02 06:50:08,370 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:50:08" (1/1) ...
[2024-12-02 06:50:08,430 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:50:08" (1/1) ...
[2024-12-02 06:50:08,482 INFO L138 Inliner]: procedures = 764, calls = 2440, calls flagged for inlining = 72, calls inlined = 16, statements flattened = 716
[2024-12-02 06:50:08,483 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-12-02 06:50:08,483 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-12-02 06:50:08,483 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-12-02 06:50:08,483 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-12-02 06:50:08,494 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:50:08" (1/1) ...
[2024-12-02 06:50:08,495 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:50:08" (1/1) ...
[2024-12-02 06:50:08,503 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:50:08" (1/1) ...
[2024-12-02 06:50:08,562 INFO L175 MemorySlicer]: Split 304 memory accesses to 8 slices as follows [238, 2, 2, 1, 37, 2, 6, 16]. 78 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [6, 2, 0, 0, 0, 0, 5, 0]. The 243 writes are split as follows [232, 0, 1, 1, 6, 1, 0, 2].
[2024-12-02 06:50:08,562 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:50:08" (1/1) ...
[2024-12-02 06:50:08,563 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:50:08" (1/1) ...
[2024-12-02 06:50:08,598 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:50:08" (1/1) ...
[2024-12-02 06:50:08,601 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:50:08" (1/1) ...
[2024-12-02 06:50:08,605 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:50:08" (1/1) ...
[2024-12-02 06:50:08,616 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:50:08" (1/1) ...
[2024-12-02 06:50:08,621 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:50:08" (1/1) ...
[2024-12-02 06:50:08,632 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-12-02 06:50:08,633 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-12-02 06:50:08,633 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-12-02 06:50:08,633 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-12-02 06:50:08,634 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:50:08" (1/1) ...
[2024-12-02 06:50:08,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-12-02 06:50:08,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:50:08,660 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-12-02 06:50:08,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-12-02 06:50:08,681 INFO L130 BoogieDeclarations]: Found specification of procedure memset_override_0_impl
[2024-12-02 06:50:08,681 INFO L138 BoogieDeclarations]: Found implementation of procedure memset_override_0_impl
[2024-12-02 06:50:08,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0
[2024-12-02 06:50:08,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1
[2024-12-02 06:50:08,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2
[2024-12-02 06:50:08,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3
[2024-12-02 06:50:08,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4
[2024-12-02 06:50:08,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5
[2024-12-02 06:50:08,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6
[2024-12-02 06:50:08,682 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7
[2024-12-02 06:50:08,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-12-02 06:50:08,682 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool
[2024-12-02 06:50:08,682 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool
[2024-12-02 06:50:08,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0
[2024-12-02 06:50:08,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1
[2024-12-02 06:50:08,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2
[2024-12-02 06:50:08,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3
[2024-12-02 06:50:08,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4
[2024-12-02 06:50:08,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5
[2024-12-02 06:50:08,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6
[2024-12-02 06:50:08,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7
[2024-12-02 06:50:08,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2024-12-02 06:50:08,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2024-12-02 06:50:08,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2
[2024-12-02 06:50:08,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3
[2024-12-02 06:50:08,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4
[2024-12-02 06:50:08,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5
[2024-12-02 06:50:08,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6
[2024-12-02 06:50:08,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7
[2024-12-02 06:50:08,683 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error
[2024-12-02 06:50:08,683 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error
[2024-12-02 06:50:08,683 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2024-12-02 06:50:08,683 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2024-12-02 06:50:08,683 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_is_valid
[2024-12-02 06:50:08,683 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_is_valid
[2024-12-02 06:50:08,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2024-12-02 06:50:08,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-12-02 06:50:08,684 INFO L130 BoogieDeclarations]: Found specification of procedure hash_table_state_required_bytes
[2024-12-02 06:50:08,684 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_table_state_required_bytes
[2024-12-02 06:50:08,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0
[2024-12-02 06:50:08,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1
[2024-12-02 06:50:08,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2
[2024-12-02 06:50:08,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3
[2024-12-02 06:50:08,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4
[2024-12-02 06:50:08,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5
[2024-12-02 06:50:08,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6
[2024-12-02 06:50:08,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7
[2024-12-02 06:50:08,684 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID
[2024-12-02 06:50:08,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID
[2024-12-02 06:50:08,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-12-02 06:50:08,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-12-02 06:50:08,684 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc
[2024-12-02 06:50:08,684 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc
[2024-12-02 06:50:08,685 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked
[2024-12-02 06:50:08,685 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked
[2024-12-02 06:50:08,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0
[2024-12-02 06:50:08,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1
[2024-12-02 06:50:08,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2
[2024-12-02 06:50:08,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3
[2024-12-02 06:50:08,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4
[2024-12-02 06:50:08,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5
[2024-12-02 06:50:08,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6
[2024-12-02 06:50:08,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7
[2024-12-02 06:50:08,685 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release
[2024-12-02 06:50:08,685 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release
[2024-12-02 06:50:08,685 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-12-02 06:50:08,685 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-12-02 06:50:08,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-12-02 06:50:08,685 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus
[2024-12-02 06:50:08,685 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus
[2024-12-02 06:50:08,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0
[2024-12-02 06:50:08,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1
[2024-12-02 06:50:08,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2
[2024-12-02 06:50:08,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3
[2024-12-02 06:50:08,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4
[2024-12-02 06:50:08,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5
[2024-12-02 06:50:08,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6
[2024-12-02 06:50:08,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7
[2024-12-02 06:50:08,686 INFO L130 BoogieDeclarations]: Found specification of procedure aws_hash_table_is_valid
[2024-12-02 06:50:08,686 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_hash_table_is_valid
[2024-12-02 06:50:08,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0
[2024-12-02 06:50:08,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1
[2024-12-02 06:50:08,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2
[2024-12-02 06:50:08,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3
[2024-12-02 06:50:08,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4
[2024-12-02 06:50:08,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5
[2024-12-02 06:50:08,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6
[2024-12-02 06:50:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7
[2024-12-02 06:50:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator
[2024-12-02 06:50:08,687 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator
[2024-12-02 06:50:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult
[2024-12-02 06:50:08,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult
[2024-12-02 06:50:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked
[2024-12-02 06:50:08,687 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked
[2024-12-02 06:50:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t
[2024-12-02 06:50:08,687 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t
[2024-12-02 06:50:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2024-12-02 06:50:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2024-12-02 06:50:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2
[2024-12-02 06:50:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3
[2024-12-02 06:50:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4
[2024-12-02 06:50:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5
[2024-12-02 06:50:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6
[2024-12-02 06:50:08,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7
[2024-12-02 06:50:08,688 INFO L130 BoogieDeclarations]: Found specification of procedure my_memset
[2024-12-02 06:50:08,688 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memset
[2024-12-02 06:50:08,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-12-02 06:50:08,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-12-02 06:50:08,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2
[2024-12-02 06:50:08,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3
[2024-12-02 06:50:08,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4
[2024-12-02 06:50:08,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5
[2024-12-02 06:50:08,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6
[2024-12-02 06:50:08,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7
[2024-12-02 06:50:08,688 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_power_of_two
[2024-12-02 06:50:08,688 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_power_of_two
[2024-12-02 06:50:08,996 INFO L234 CfgBuilder]: Building ICFG
[2024-12-02 06:50:08,999 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-12-02 06:50:15,203 INFO L? ?]: Removed 175 outVars from TransFormulas that were not future-live.
[2024-12-02 06:50:15,203 INFO L283 CfgBuilder]: Performing block encoding
[2024-12-02 06:50:15,235 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-12-02 06:50:15,236 INFO L312 CfgBuilder]: Removed 2 assume(true) statements.
[2024-12-02 06:50:15,236 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:50:15 BoogieIcfgContainer
[2024-12-02 06:50:15,236 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-12-02 06:50:15,238 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-12-02 06:50:15,238 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-12-02 06:50:15,242 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-12-02 06:50:15,242 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:50:05" (1/3) ...
[2024-12-02 06:50:15,243 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41f2b346 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:50:15, skipping insertion in model container
[2024-12-02 06:50:15,243 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:50:08" (2/3) ...
[2024-12-02 06:50:15,243 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41f2b346 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:50:15, skipping insertion in model container
[2024-12-02 06:50:15,243 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:50:15" (3/3) ...
[2024-12-02 06:50:15,244 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_hash_table_clean_up_harness.i
[2024-12-02 06:50:15,258 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-12-02 06:50:15,260 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_hash_table_clean_up_harness.i that has 20 procedures, 201 locations, 1 initial locations, 2 loop locations, and 1 error locations.
[2024-12-02 06:50:15,318 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-12-02 06:50:15,329 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;@5ab9b7d7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-12-02 06:50:15,329 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-12-02 06:50:15,333 INFO L276 IsEmpty]: Start isEmpty. Operand has 201 states, 133 states have (on average 1.1954887218045114) internal successors, (159), 134 states have internal predecessors, (159), 47 states have call successors, (47), 19 states have call predecessors, (47), 19 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47)
[2024-12-02 06:50:15,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135
[2024-12-02 06:50:15,343 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:50:15,344 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:50:15,345 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 06:50:15,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:50:15,349 INFO L85 PathProgramCache]: Analyzing trace with hash -653573, now seen corresponding path program 1 times
[2024-12-02 06:50:15,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 06:50:15,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521740614]
[2024-12-02 06:50:15,357 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:50:15,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 06:50:20,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:50:21,203 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked.
[2024-12-02 06:50:21,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 06:50:21,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521740614]
[2024-12-02 06:50:21,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521740614] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 06:50:21,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1292548786]
[2024-12-02 06:50:21,205 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:50:21,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:50:21,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:50:21,207 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 06:50:21,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-12-02 06:50:26,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:50:26,742 INFO L256 TraceCheckSpWp]: Trace formula consists of 4328 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-12-02 06:50:26,750 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:50:26,769 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked.
[2024-12-02 06:50:26,769 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 06:50:26,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1292548786] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:50:26,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-02 06:50:26,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-12-02 06:50:26,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16443344]
[2024-12-02 06:50:26,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:50:26,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-12-02 06:50:26,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 06:50:26,789 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-12-02 06:50:26,789 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-12-02 06:50:26,791 INFO L87 Difference]: Start difference. First operand has 201 states, 133 states have (on average 1.1954887218045114) internal successors, (159), 134 states have internal predecessors, (159), 47 states have call successors, (47), 19 states have call predecessors, (47), 19 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) Second operand has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21)
[2024-12-02 06:50:26,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:50:26,829 INFO L93 Difference]: Finished difference Result 397 states and 531 transitions.
[2024-12-02 06:50:26,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-12-02 06:50:26,831 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 134
[2024-12-02 06:50:26,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:50:26,838 INFO L225 Difference]: With dead ends: 397
[2024-12-02 06:50:26,838 INFO L226 Difference]: Without dead ends: 194
[2024-12-02 06:50:26,842 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-12-02 06:50:26,844 INFO L435 NwaCegarLoop]: 248 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-12-02 06:50:26,845 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-12-02 06:50:26,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states.
[2024-12-02 06:50:26,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194.
[2024-12-02 06:50:26,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 127 states have (on average 1.1574803149606299) internal successors, (147), 128 states have internal predecessors, (147), 47 states have call successors, (47), 19 states have call predecessors, (47), 19 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46)
[2024-12-02 06:50:26,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 240 transitions.
[2024-12-02 06:50:26,884 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 240 transitions. Word has length 134
[2024-12-02 06:50:26,884 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:50:26,884 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 240 transitions.
[2024-12-02 06:50:26,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21)
[2024-12-02 06:50:26,885 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 240 transitions.
[2024-12-02 06:50:26,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135
[2024-12-02 06:50:26,887 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:50:26,887 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:50:26,899 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-12-02 06:50:27,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2024-12-02 06:50:27,088 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 06:50:27,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:50:27,088 INFO L85 PathProgramCache]: Analyzing trace with hash 450630851, now seen corresponding path program 1 times
[2024-12-02 06:50:27,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 06:50:27,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815270064]
[2024-12-02 06:50:27,089 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:50:27,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 06:50:31,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:50:32,727 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked.
[2024-12-02 06:50:32,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 06:50:32,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815270064]
[2024-12-02 06:50:32,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815270064] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:50:32,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:50:32,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 06:50:32,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469298159]
[2024-12-02 06:50:32,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:50:32,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 06:50:32,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 06:50:32,729 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 06:50:32,729 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 06:50:32,730 INFO L87 Difference]: Start difference. First operand 194 states and 240 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21)
[2024-12-02 06:50:32,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:50:32,864 INFO L93 Difference]: Finished difference Result 351 states and 435 transitions.
[2024-12-02 06:50:32,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-12-02 06:50:32,865 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 134
[2024-12-02 06:50:32,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:50:32,867 INFO L225 Difference]: With dead ends: 351
[2024-12-02 06:50:32,867 INFO L226 Difference]: Without dead ends: 199
[2024-12-02 06:50:32,868 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-12-02 06:50:32,869 INFO L435 NwaCegarLoop]: 237 mSDtfsCounter, 0 mSDsluCounter, 707 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 944 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-02 06:50:32,869 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 944 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 06:50:32,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states.
[2024-12-02 06:50:32,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199.
[2024-12-02 06:50:32,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 131 states have (on average 1.1526717557251909) internal successors, (151), 132 states have internal predecessors, (151), 47 states have call successors, (47), 19 states have call predecessors, (47), 20 states have return successors, (47), 47 states have call predecessors, (47), 46 states have call successors, (47)
[2024-12-02 06:50:32,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 245 transitions.
[2024-12-02 06:50:32,887 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 245 transitions. Word has length 134
[2024-12-02 06:50:32,887 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:50:32,887 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 245 transitions.
[2024-12-02 06:50:32,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21)
[2024-12-02 06:50:32,887 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 245 transitions.
[2024-12-02 06:50:32,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141
[2024-12-02 06:50:32,889 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:50:32,890 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:50:32,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-12-02 06:50:32,890 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 06:50:32,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:50:32,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1354417573, now seen corresponding path program 1 times
[2024-12-02 06:50:32,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 06:50:32,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659565117]
[2024-12-02 06:50:32,891 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:50:32,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 06:50:37,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:50:40,738 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked.
[2024-12-02 06:50:40,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 06:50:40,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659565117]
[2024-12-02 06:50:40,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659565117] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:50:40,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:50:40,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2024-12-02 06:50:40,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748821662]
[2024-12-02 06:50:40,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:50:40,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-12-02 06:50:40,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 06:50:40,739 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-12-02 06:50:40,739 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90
[2024-12-02 06:50:40,740 INFO L87 Difference]: Start difference. First operand 199 states and 245 transitions. Second operand has 10 states, 10 states have (on average 6.4) internal successors, (64), 9 states have internal predecessors, (64), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22)
[2024-12-02 06:50:43,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:50:43,033 INFO L93 Difference]: Finished difference Result 346 states and 433 transitions.
[2024-12-02 06:50:43,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-12-02 06:50:43,034 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 9 states have internal predecessors, (64), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 140
[2024-12-02 06:50:43,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:50:43,037 INFO L225 Difference]: With dead ends: 346
[2024-12-02 06:50:43,037 INFO L226 Difference]: Without dead ends: 208
[2024-12-02 06:50:43,038 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156
[2024-12-02 06:50:43,039 INFO L435 NwaCegarLoop]: 219 mSDtfsCounter, 54 mSDsluCounter, 1315 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 1534 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time
[2024-12-02 06:50:43,039 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 1534 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time]
[2024-12-02 06:50:43,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states.
[2024-12-02 06:50:43,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 204.
[2024-12-02 06:50:43,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 135 states have (on average 1.1555555555555554) internal successors, (156), 137 states have internal predecessors, (156), 47 states have call successors, (47), 19 states have call predecessors, (47), 21 states have return successors, (50), 47 states have call predecessors, (50), 46 states have call successors, (50)
[2024-12-02 06:50:43,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 253 transitions.
[2024-12-02 06:50:43,058 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 253 transitions. Word has length 140
[2024-12-02 06:50:43,058 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:50:43,059 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 253 transitions.
[2024-12-02 06:50:43,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 9 states have internal predecessors, (64), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22)
[2024-12-02 06:50:43,059 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 253 transitions.
[2024-12-02 06:50:43,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141
[2024-12-02 06:50:43,061 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:50:43,061 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:50:43,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-12-02 06:50:43,062 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 06:50:43,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:50:43,062 INFO L85 PathProgramCache]: Analyzing trace with hash -556624985, now seen corresponding path program 1 times
[2024-12-02 06:50:43,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 06:50:43,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505613368]
[2024-12-02 06:50:43,062 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:50:43,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 06:50:47,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:50:48,435 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked.
[2024-12-02 06:50:48,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 06:50:48,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505613368]
[2024-12-02 06:50:48,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505613368] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:50:48,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:50:48,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 06:50:48,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451002633]
[2024-12-02 06:50:48,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:50:48,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 06:50:48,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 06:50:48,437 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 06:50:48,437 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-12-02 06:50:48,437 INFO L87 Difference]: Start difference. First operand 204 states and 253 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22)
[2024-12-02 06:50:48,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:50:48,750 INFO L93 Difference]: Finished difference Result 352 states and 442 transitions.
[2024-12-02 06:50:48,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-12-02 06:50:48,751 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 140
[2024-12-02 06:50:48,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:50:48,753 INFO L225 Difference]: With dead ends: 352
[2024-12-02 06:50:48,753 INFO L226 Difference]: Without dead ends: 209
[2024-12-02 06:50:48,754 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-12-02 06:50:48,755 INFO L435 NwaCegarLoop]: 238 mSDtfsCounter, 53 mSDsluCounter, 609 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-12-02 06:50:48,755 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 847 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-12-02 06:50:48,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states.
[2024-12-02 06:50:48,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 206.
[2024-12-02 06:50:48,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 136 states have (on average 1.1544117647058822) internal successors, (157), 138 states have internal predecessors, (157), 48 states have call successors, (48), 19 states have call predecessors, (48), 21 states have return successors, (51), 48 states have call predecessors, (51), 47 states have call successors, (51)
[2024-12-02 06:50:48,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 256 transitions.
[2024-12-02 06:50:48,771 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 256 transitions. Word has length 140
[2024-12-02 06:50:48,771 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:50:48,771 INFO L471 AbstractCegarLoop]: Abstraction has 206 states and 256 transitions.
[2024-12-02 06:50:48,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22)
[2024-12-02 06:50:48,771 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 256 transitions.
[2024-12-02 06:50:48,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147
[2024-12-02 06:50:48,773 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:50:48,773 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:50:48,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-12-02 06:50:48,773 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 06:50:48,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:50:48,774 INFO L85 PathProgramCache]: Analyzing trace with hash 804800820, now seen corresponding path program 1 times
[2024-12-02 06:50:48,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 06:50:48,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056550068]
[2024-12-02 06:50:48,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:50:48,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 06:50:52,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:50:54,889 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked.
[2024-12-02 06:50:54,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 06:50:54,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056550068]
[2024-12-02 06:50:54,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056550068] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:50:54,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:50:54,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-12-02 06:50:54,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146610118]
[2024-12-02 06:50:54,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:50:54,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-12-02 06:50:54,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 06:50:54,892 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-12-02 06:50:54,892 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2024-12-02 06:50:54,892 INFO L87 Difference]: Start difference. First operand 206 states and 256 transitions. Second operand has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 7 states have internal predecessors, (68), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23)
[2024-12-02 06:50:55,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:50:55,411 INFO L93 Difference]: Finished difference Result 354 states and 450 transitions.
[2024-12-02 06:50:55,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-12-02 06:50:55,412 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 7 states have internal predecessors, (68), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23) Word has length 146
[2024-12-02 06:50:55,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:50:55,414 INFO L225 Difference]: With dead ends: 354
[2024-12-02 06:50:55,414 INFO L226 Difference]: Without dead ends: 207
[2024-12-02 06:50:55,415 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2024-12-02 06:50:55,415 INFO L435 NwaCegarLoop]: 234 mSDtfsCounter, 3 mSDsluCounter, 1129 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1363 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time
[2024-12-02 06:50:55,416 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1363 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time]
[2024-12-02 06:50:55,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states.
[2024-12-02 06:50:55,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 206.
[2024-12-02 06:50:55,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 136 states have (on average 1.1470588235294117) internal successors, (156), 138 states have internal predecessors, (156), 48 states have call successors, (48), 19 states have call predecessors, (48), 21 states have return successors, (51), 48 states have call predecessors, (51), 47 states have call successors, (51)
[2024-12-02 06:50:55,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 255 transitions.
[2024-12-02 06:50:55,429 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 255 transitions. Word has length 146
[2024-12-02 06:50:55,429 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:50:55,429 INFO L471 AbstractCegarLoop]: Abstraction has 206 states and 255 transitions.
[2024-12-02 06:50:55,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 7 states have internal predecessors, (68), 3 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 2 states have call predecessors, (23), 3 states have call successors, (23)
[2024-12-02 06:50:55,430 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 255 transitions.
[2024-12-02 06:50:55,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154
[2024-12-02 06:50:55,431 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:50:55,431 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:50:55,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-12-02 06:50:55,431 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 06:50:55,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:50:55,432 INFO L85 PathProgramCache]: Analyzing trace with hash 70773478, now seen corresponding path program 1 times
[2024-12-02 06:50:55,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 06:50:55,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627557142]
[2024-12-02 06:50:55,432 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:50:55,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 06:50:59,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:51:02,774 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked.
[2024-12-02 06:51:02,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 06:51:02,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627557142]
[2024-12-02 06:51:02,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627557142] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:51:02,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:51:02,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2024-12-02 06:51:02,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490623334]
[2024-12-02 06:51:02,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:51:02,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-12-02 06:51:02,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 06:51:02,775 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-12-02 06:51:02,775 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72
[2024-12-02 06:51:02,776 INFO L87 Difference]: Start difference. First operand 206 states and 255 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 5 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24)
[2024-12-02 06:51:05,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:51:05,855 INFO L93 Difference]: Finished difference Result 240 states and 293 transitions.
[2024-12-02 06:51:05,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-12-02 06:51:05,856 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 5 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) Word has length 153
[2024-12-02 06:51:05,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:51:05,859 INFO L225 Difference]: With dead ends: 240
[2024-12-02 06:51:05,859 INFO L226 Difference]: Without dead ends: 218
[2024-12-02 06:51:05,860 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182
[2024-12-02 06:51:05,860 INFO L435 NwaCegarLoop]: 224 mSDtfsCounter, 81 mSDsluCounter, 1272 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 1496 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time
[2024-12-02 06:51:05,861 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 1496 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time]
[2024-12-02 06:51:05,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states.
[2024-12-02 06:51:05,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218.
[2024-12-02 06:51:05,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 146 states have (on average 1.1506849315068493) internal successors, (168), 149 states have internal predecessors, (168), 48 states have call successors, (48), 20 states have call predecessors, (48), 23 states have return successors, (54), 48 states have call predecessors, (54), 47 states have call successors, (54)
[2024-12-02 06:51:05,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 270 transitions.
[2024-12-02 06:51:05,878 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 270 transitions. Word has length 153
[2024-12-02 06:51:05,878 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:51:05,878 INFO L471 AbstractCegarLoop]: Abstraction has 218 states and 270 transitions.
[2024-12-02 06:51:05,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 5 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24)
[2024-12-02 06:51:05,878 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 270 transitions.
[2024-12-02 06:51:05,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179
[2024-12-02 06:51:05,881 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:51:05,881 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:51:05,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-12-02 06:51:05,881 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 06:51:05,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:51:05,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1403875880, now seen corresponding path program 1 times
[2024-12-02 06:51:05,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 06:51:05,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952696354]
[2024-12-02 06:51:05,882 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:51:05,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 06:51:10,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:51:10,717 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked.
[2024-12-02 06:51:10,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 06:51:10,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952696354]
[2024-12-02 06:51:10,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952696354] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:51:10,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:51:10,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-12-02 06:51:10,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268185285]
[2024-12-02 06:51:10,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:51:10,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-12-02 06:51:10,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 06:51:10,719 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-12-02 06:51:10,719 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 06:51:10,719 INFO L87 Difference]: Start difference. First operand 218 states and 270 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27)
[2024-12-02 06:51:10,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:51:10,783 INFO L93 Difference]: Finished difference Result 310 states and 378 transitions.
[2024-12-02 06:51:10,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-12-02 06:51:10,784 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 178
[2024-12-02 06:51:10,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:51:10,786 INFO L225 Difference]: With dead ends: 310
[2024-12-02 06:51:10,786 INFO L226 Difference]: Without dead ends: 219
[2024-12-02 06:51:10,787 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-12-02 06:51:10,788 INFO L435 NwaCegarLoop]: 237 mSDtfsCounter, 0 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-12-02 06:51:10,788 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 468 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-12-02 06:51:10,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states.
[2024-12-02 06:51:10,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219.
[2024-12-02 06:51:10,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 147 states have (on average 1.1496598639455782) internal successors, (169), 150 states have internal predecessors, (169), 48 states have call successors, (48), 20 states have call predecessors, (48), 23 states have return successors, (54), 48 states have call predecessors, (54), 47 states have call successors, (54)
[2024-12-02 06:51:10,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 271 transitions.
[2024-12-02 06:51:10,804 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 271 transitions. Word has length 178
[2024-12-02 06:51:10,805 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:51:10,805 INFO L471 AbstractCegarLoop]: Abstraction has 219 states and 271 transitions.
[2024-12-02 06:51:10,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27)
[2024-12-02 06:51:10,805 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 271 transitions.
[2024-12-02 06:51:10,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179
[2024-12-02 06:51:10,807 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:51:10,807 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:51:10,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-12-02 06:51:10,808 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 06:51:10,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:51:10,808 INFO L85 PathProgramCache]: Analyzing trace with hash 382807526, now seen corresponding path program 1 times
[2024-12-02 06:51:10,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 06:51:10,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88442362]
[2024-12-02 06:51:10,808 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:51:10,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 06:51:15,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:51:16,182 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked.
[2024-12-02 06:51:16,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 06:51:16,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88442362]
[2024-12-02 06:51:16,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88442362] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:51:16,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:51:16,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-12-02 06:51:16,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664299327]
[2024-12-02 06:51:16,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:51:16,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-12-02 06:51:16,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 06:51:16,184 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-12-02 06:51:16,184 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-12-02 06:51:16,184 INFO L87 Difference]: Start difference. First operand 219 states and 271 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27)
[2024-12-02 06:51:16,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:51:16,589 INFO L93 Difference]: Finished difference Result 337 states and 416 transitions.
[2024-12-02 06:51:16,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-12-02 06:51:16,590 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 178
[2024-12-02 06:51:16,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:51:16,591 INFO L225 Difference]: With dead ends: 337
[2024-12-02 06:51:16,592 INFO L226 Difference]: Without dead ends: 219
[2024-12-02 06:51:16,592 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2024-12-02 06:51:16,593 INFO L435 NwaCegarLoop]: 235 mSDtfsCounter, 1 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 904 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-12-02 06:51:16,593 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 904 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-12-02 06:51:16,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states.
[2024-12-02 06:51:16,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219.
[2024-12-02 06:51:16,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 147 states have (on average 1.1428571428571428) internal successors, (168), 150 states have internal predecessors, (168), 48 states have call successors, (48), 20 states have call predecessors, (48), 23 states have return successors, (54), 48 states have call predecessors, (54), 47 states have call successors, (54)
[2024-12-02 06:51:16,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 270 transitions.
[2024-12-02 06:51:16,605 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 270 transitions. Word has length 178
[2024-12-02 06:51:16,605 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:51:16,605 INFO L471 AbstractCegarLoop]: Abstraction has 219 states and 270 transitions.
[2024-12-02 06:51:16,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27)
[2024-12-02 06:51:16,605 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 270 transitions.
[2024-12-02 06:51:16,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188
[2024-12-02 06:51:16,607 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:51:16,607 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:51:16,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-12-02 06:51:16,607 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 06:51:16,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:51:16,607 INFO L85 PathProgramCache]: Analyzing trace with hash -153765107, now seen corresponding path program 1 times
[2024-12-02 06:51:16,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 06:51:16,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845571467]
[2024-12-02 06:51:16,608 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:51:16,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 06:51:20,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:51:23,727 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked.
[2024-12-02 06:51:23,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 06:51:23,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845571467]
[2024-12-02 06:51:23,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845571467] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 06:51:23,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1432990878]
[2024-12-02 06:51:23,727 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:51:23,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:51:23,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:51:23,729 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 06:51:23,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-12-02 06:51:29,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:51:29,513 INFO L256 TraceCheckSpWp]: Trace formula consists of 4522 conjuncts, 25 conjuncts are in the unsatisfiable core
[2024-12-02 06:51:29,519 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:51:31,750 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 145 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked.
[2024-12-02 06:51:31,750 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 06:51:31,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1432990878] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:51:31,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-02 06:51:31,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11] total 20
[2024-12-02 06:51:31,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778714124]
[2024-12-02 06:51:31,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:51:31,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-12-02 06:51:31,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 06:51:31,752 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-12-02 06:51:31,752 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=340, Unknown=0, NotChecked=0, Total=380
[2024-12-02 06:51:31,752 INFO L87 Difference]: Start difference. First operand 219 states and 270 transitions. Second operand has 11 states, 9 states have (on average 10.0) internal successors, (90), 10 states have internal predecessors, (90), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (28), 4 states have call predecessors, (28), 5 states have call successors, (28)
[2024-12-02 06:51:36,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:51:36,240 INFO L93 Difference]: Finished difference Result 340 states and 418 transitions.
[2024-12-02 06:51:36,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2024-12-02 06:51:36,241 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 10.0) internal successors, (90), 10 states have internal predecessors, (90), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (28), 4 states have call predecessors, (28), 5 states have call successors, (28) Word has length 187
[2024-12-02 06:51:36,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:51:36,242 INFO L225 Difference]: With dead ends: 340
[2024-12-02 06:51:36,242 INFO L226 Difference]: Without dead ends: 218
[2024-12-02 06:51:36,243 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=89, Invalid=723, Unknown=0, NotChecked=0, Total=812
[2024-12-02 06:51:36,244 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 263 mSDsluCounter, 1367 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 1551 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time
[2024-12-02 06:51:36,244 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 1551 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time]
[2024-12-02 06:51:36,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states.
[2024-12-02 06:51:36,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 216.
[2024-12-02 06:51:36,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 145 states have (on average 1.1310344827586207) internal successors, (164), 147 states have internal predecessors, (164), 48 states have call successors, (48), 20 states have call predecessors, (48), 22 states have return successors, (53), 48 states have call predecessors, (53), 47 states have call successors, (53)
[2024-12-02 06:51:36,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 265 transitions.
[2024-12-02 06:51:36,256 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 265 transitions. Word has length 187
[2024-12-02 06:51:36,256 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:51:36,256 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 265 transitions.
[2024-12-02 06:51:36,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 10.0) internal successors, (90), 10 states have internal predecessors, (90), 5 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (28), 4 states have call predecessors, (28), 5 states have call successors, (28)
[2024-12-02 06:51:36,256 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 265 transitions.
[2024-12-02 06:51:36,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201
[2024-12-02 06:51:36,257 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:51:36,258 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:51:36,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-12-02 06:51:36,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:51:36,458 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 06:51:36,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:51:36,459 INFO L85 PathProgramCache]: Analyzing trace with hash 411703644, now seen corresponding path program 2 times
[2024-12-02 06:51:36,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 06:51:36,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251406650]
[2024-12-02 06:51:36,459 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-12-02 06:51:36,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 06:51:40,921 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-12-02 06:51:40,921 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 06:51:44,228 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked.
[2024-12-02 06:51:44,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 06:51:44,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251406650]
[2024-12-02 06:51:44,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251406650] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:51:44,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:51:44,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12
[2024-12-02 06:51:44,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614530357]
[2024-12-02 06:51:44,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:51:44,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-12-02 06:51:44,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 06:51:44,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-12-02 06:51:44,230 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132
[2024-12-02 06:51:44,230 INFO L87 Difference]: Start difference. First operand 216 states and 265 transitions. Second operand has 12 states, 11 states have (on average 7.363636363636363) internal successors, (81), 11 states have internal predecessors, (81), 6 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (28), 6 states have call predecessors, (28), 6 states have call successors, (28)
[2024-12-02 06:51:47,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:51:47,294 INFO L93 Difference]: Finished difference Result 333 states and 406 transitions.
[2024-12-02 06:51:47,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2024-12-02 06:51:47,294 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.363636363636363) internal successors, (81), 11 states have internal predecessors, (81), 6 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (28), 6 states have call predecessors, (28), 6 states have call successors, (28) Word has length 200
[2024-12-02 06:51:47,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:51:47,296 INFO L225 Difference]: With dead ends: 333
[2024-12-02 06:51:47,296 INFO L226 Difference]: Without dead ends: 216
[2024-12-02 06:51:47,297 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272
[2024-12-02 06:51:47,297 INFO L435 NwaCegarLoop]: 218 mSDtfsCounter, 91 mSDsluCounter, 1606 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 1824 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time
[2024-12-02 06:51:47,297 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 1824 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time]
[2024-12-02 06:51:47,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states.
[2024-12-02 06:51:47,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 214.
[2024-12-02 06:51:47,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 143 states have (on average 1.1258741258741258) internal successors, (161), 145 states have internal predecessors, (161), 48 states have call successors, (48), 20 states have call predecessors, (48), 22 states have return successors, (53), 48 states have call predecessors, (53), 47 states have call successors, (53)
[2024-12-02 06:51:47,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 262 transitions.
[2024-12-02 06:51:47,308 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 262 transitions. Word has length 200
[2024-12-02 06:51:47,308 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:51:47,308 INFO L471 AbstractCegarLoop]: Abstraction has 214 states and 262 transitions.
[2024-12-02 06:51:47,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.363636363636363) internal successors, (81), 11 states have internal predecessors, (81), 6 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (28), 6 states have call predecessors, (28), 6 states have call successors, (28)
[2024-12-02 06:51:47,309 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 262 transitions.
[2024-12-02 06:51:47,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201
[2024-12-02 06:51:47,311 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:51:47,311 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:51:47,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-12-02 06:51:47,311 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 06:51:47,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:51:47,312 INFO L85 PathProgramCache]: Analyzing trace with hash -97769446, now seen corresponding path program 1 times
[2024-12-02 06:51:47,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 06:51:47,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031924380]
[2024-12-02 06:51:47,312 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:51:47,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 06:51:51,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:51:53,511 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked.
[2024-12-02 06:51:53,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 06:51:53,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031924380]
[2024-12-02 06:51:53,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031924380] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 06:51:53,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1142442510]
[2024-12-02 06:51:53,512 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:51:53,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:51:53,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:51:53,514 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 06:51:53,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-12-02 06:51:59,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:51:59,530 INFO L256 TraceCheckSpWp]: Trace formula consists of 4573 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-12-02 06:51:59,536 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:52:01,041 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked.
[2024-12-02 06:52:01,041 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-12-02 06:52:01,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1142442510] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:52:01,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-12-02 06:52:01,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16
[2024-12-02 06:52:01,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957772310]
[2024-12-02 06:52:01,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:52:01,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-12-02 06:52:01,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 06:52:01,042 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-12-02 06:52:01,042 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240
[2024-12-02 06:52:01,042 INFO L87 Difference]: Start difference. First operand 214 states and 262 transitions. Second operand has 8 states, 7 states have (on average 12.0) internal successors, (84), 8 states have internal predecessors, (84), 5 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (28), 4 states have call predecessors, (28), 5 states have call successors, (28)
[2024-12-02 06:52:03,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:52:03,218 INFO L93 Difference]: Finished difference Result 333 states and 407 transitions.
[2024-12-02 06:52:03,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-12-02 06:52:03,218 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.0) internal successors, (84), 8 states have internal predecessors, (84), 5 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (28), 4 states have call predecessors, (28), 5 states have call successors, (28) Word has length 200
[2024-12-02 06:52:03,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:52:03,220 INFO L225 Difference]: With dead ends: 333
[2024-12-02 06:52:03,220 INFO L226 Difference]: Without dead ends: 202
[2024-12-02 06:52:03,221 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=72, Invalid=348, Unknown=0, NotChecked=0, Total=420
[2024-12-02 06:52:03,221 INFO L435 NwaCegarLoop]: 192 mSDtfsCounter, 296 mSDsluCounter, 850 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 1042 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time
[2024-12-02 06:52:03,221 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 1042 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time]
[2024-12-02 06:52:03,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states.
[2024-12-02 06:52:03,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 200.
[2024-12-02 06:52:03,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 132 states have (on average 1.1136363636363635) internal successors, (147), 133 states have internal predecessors, (147), 47 states have call successors, (47), 19 states have call predecessors, (47), 20 states have return successors, (47), 47 states have call predecessors, (47), 46 states have call successors, (47)
[2024-12-02 06:52:03,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 241 transitions.
[2024-12-02 06:52:03,231 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 241 transitions. Word has length 200
[2024-12-02 06:52:03,231 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:52:03,232 INFO L471 AbstractCegarLoop]: Abstraction has 200 states and 241 transitions.
[2024-12-02 06:52:03,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.0) internal successors, (84), 8 states have internal predecessors, (84), 5 states have call successors, (31), 2 states have call predecessors, (31), 3 states have return successors, (28), 4 states have call predecessors, (28), 5 states have call successors, (28)
[2024-12-02 06:52:03,232 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 241 transitions.
[2024-12-02 06:52:03,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214
[2024-12-02 06:52:03,233 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:52:03,233 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:52:03,249 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-12-02 06:52:03,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:52:03,433 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 06:52:03,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:52:03,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1939391895, now seen corresponding path program 1 times
[2024-12-02 06:52:03,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 06:52:03,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502455261]
[2024-12-02 06:52:03,434 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:52:03,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 06:52:08,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:52:09,953 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked.
[2024-12-02 06:52:09,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 06:52:09,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502455261]
[2024-12-02 06:52:09,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502455261] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:52:09,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:52:09,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-12-02 06:52:09,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302783276]
[2024-12-02 06:52:09,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:52:09,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-12-02 06:52:09,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 06:52:09,955 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-12-02 06:52:09,955 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2024-12-02 06:52:09,955 INFO L87 Difference]: Start difference. First operand 200 states and 241 transitions. Second operand has 8 states, 6 states have (on average 12.5) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (31), 4 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28)
[2024-12-02 06:52:10,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:52:10,498 INFO L93 Difference]: Finished difference Result 206 states and 246 transitions.
[2024-12-02 06:52:10,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-12-02 06:52:10,498 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 12.5) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (31), 4 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 213
[2024-12-02 06:52:10,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:52:10,500 INFO L225 Difference]: With dead ends: 206
[2024-12-02 06:52:10,500 INFO L226 Difference]: Without dead ends: 204
[2024-12-02 06:52:10,500 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2024-12-02 06:52:10,501 INFO L435 NwaCegarLoop]: 228 mSDtfsCounter, 23 mSDsluCounter, 1338 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 1566 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-12-02 06:52:10,501 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 1566 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-12-02 06:52:10,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states.
[2024-12-02 06:52:10,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204.
[2024-12-02 06:52:10,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 135 states have (on average 1.1111111111111112) internal successors, (150), 136 states have internal predecessors, (150), 47 states have call successors, (47), 20 states have call predecessors, (47), 21 states have return successors, (47), 47 states have call predecessors, (47), 46 states have call successors, (47)
[2024-12-02 06:52:10,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 244 transitions.
[2024-12-02 06:52:10,510 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 244 transitions. Word has length 213
[2024-12-02 06:52:10,510 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:52:10,510 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 244 transitions.
[2024-12-02 06:52:10,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 12.5) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (31), 4 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28)
[2024-12-02 06:52:10,511 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 244 transitions.
[2024-12-02 06:52:10,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220
[2024-12-02 06:52:10,511 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:52:10,511 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:52:10,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2024-12-02 06:52:10,512 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 06:52:10,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:52:10,512 INFO L85 PathProgramCache]: Analyzing trace with hash 238690590, now seen corresponding path program 1 times
[2024-12-02 06:52:10,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 06:52:10,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954597148]
[2024-12-02 06:52:10,512 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:52:10,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 06:52:15,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:52:17,637 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 5 proven. 39 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked.
[2024-12-02 06:52:17,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 06:52:17,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954597148]
[2024-12-02 06:52:17,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954597148] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 06:52:17,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [800095315]
[2024-12-02 06:52:17,638 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:52:17,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:52:17,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:52:17,639 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 06:52:17,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-12-02 06:52:23,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:52:23,777 INFO L256 TraceCheckSpWp]: Trace formula consists of 4647 conjuncts, 124 conjuncts are in the unsatisfiable core
[2024-12-02 06:52:23,787 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:52:25,960 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-12-02 06:52:25,990 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 1
[2024-12-02 06:52:26,026 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1
[2024-12-02 06:52:29,800 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 06:52:29,801 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 17
[2024-12-02 06:52:30,893 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 06:52:30,894 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 17
[2024-12-02 06:52:32,047 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-12-02 06:52:32,048 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 17
[2024-12-02 06:52:42,398 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 247 proven. 28 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked.
[2024-12-02 06:52:42,399 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 06:52:50,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [800095315] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 06:52:50,606 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-12-02 06:52:50,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 28] total 32
[2024-12-02 06:52:50,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686620777]
[2024-12-02 06:52:50,607 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-12-02 06:52:50,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states
[2024-12-02 06:52:50,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 06:52:50,608 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants.
[2024-12-02 06:52:50,608 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=1686, Unknown=0, NotChecked=0, Total=1806
[2024-12-02 06:52:50,609 INFO L87 Difference]: Start difference. First operand 204 states and 244 transitions. Second operand has 32 states, 29 states have (on average 6.0) internal successors, (174), 28 states have internal predecessors, (174), 14 states have call successors, (61), 3 states have call predecessors, (61), 11 states have return successors, (58), 15 states have call predecessors, (58), 14 states have call successors, (58)
[2024-12-02 06:52:58,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:52:58,630 INFO L93 Difference]: Finished difference Result 405 states and 483 transitions.
[2024-12-02 06:52:58,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2024-12-02 06:52:58,631 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 29 states have (on average 6.0) internal successors, (174), 28 states have internal predecessors, (174), 14 states have call successors, (61), 3 states have call predecessors, (61), 11 states have return successors, (58), 15 states have call predecessors, (58), 14 states have call successors, (58) Word has length 219
[2024-12-02 06:52:58,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:52:58,633 INFO L225 Difference]: With dead ends: 405
[2024-12-02 06:52:58,633 INFO L226 Difference]: Without dead ends: 207
[2024-12-02 06:52:58,634 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 232 SyntacticMatches, 20 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 650 ImplicationChecksByTransitivity, 16.9s TimeCoverageRelationStatistics Valid=162, Invalid=2388, Unknown=0, NotChecked=0, Total=2550
[2024-12-02 06:52:58,635 INFO L435 NwaCegarLoop]: 205 mSDtfsCounter, 217 mSDsluCounter, 3636 mSDsCounter, 0 mSdLazyCounter, 850 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 3841 SdHoareTripleChecker+Invalid, 868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 850 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time
[2024-12-02 06:52:58,635 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 3841 Invalid, 868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 850 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time]
[2024-12-02 06:52:58,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states.
[2024-12-02 06:52:58,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207.
[2024-12-02 06:52:58,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 137 states have (on average 1.1094890510948905) internal successors, (152), 139 states have internal predecessors, (152), 47 states have call successors, (47), 20 states have call predecessors, (47), 22 states have return successors, (48), 47 states have call predecessors, (48), 46 states have call successors, (48)
[2024-12-02 06:52:58,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 247 transitions.
[2024-12-02 06:52:58,651 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 247 transitions. Word has length 219
[2024-12-02 06:52:58,652 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:52:58,652 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 247 transitions.
[2024-12-02 06:52:58,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 29 states have (on average 6.0) internal successors, (174), 28 states have internal predecessors, (174), 14 states have call successors, (61), 3 states have call predecessors, (61), 11 states have return successors, (58), 15 states have call predecessors, (58), 14 states have call successors, (58)
[2024-12-02 06:52:58,652 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 247 transitions.
[2024-12-02 06:52:58,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222
[2024-12-02 06:52:58,653 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:52:58,654 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:52:58,671 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-12-02 06:52:58,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12
[2024-12-02 06:52:58,854 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 06:52:58,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:52:58,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1561278471, now seen corresponding path program 1 times
[2024-12-02 06:52:58,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 06:52:58,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362459479]
[2024-12-02 06:52:58,855 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:52:58,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 06:53:04,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:53:05,678 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 8 proven. 27 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked.
[2024-12-02 06:53:05,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 06:53:05,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362459479]
[2024-12-02 06:53:05,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362459479] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 06:53:05,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [11212318]
[2024-12-02 06:53:05,679 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:53:05,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:53:05,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:53:05,681 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 06:53:05,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-12-02 06:53:12,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:53:12,230 INFO L256 TraceCheckSpWp]: Trace formula consists of 4651 conjuncts, 133 conjuncts are in the unsatisfiable core
[2024-12-02 06:53:12,238 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:53:14,140 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1
[2024-12-02 06:53:14,155 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 1
[2024-12-02 06:53:14,184 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-12-02 06:53:17,989 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 183 proven. 3 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked.
[2024-12-02 06:53:17,989 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 06:53:22,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [11212318] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 06:53:22,054 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-12-02 06:53:22,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 19] total 23
[2024-12-02 06:53:22,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955236615]
[2024-12-02 06:53:22,055 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-12-02 06:53:22,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states
[2024-12-02 06:53:22,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 06:53:22,056 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants.
[2024-12-02 06:53:22,056 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=681, Unknown=0, NotChecked=0, Total=756
[2024-12-02 06:53:22,056 INFO L87 Difference]: Start difference. First operand 207 states and 247 transitions. Second operand has 23 states, 20 states have (on average 7.2) internal successors, (144), 21 states have internal predecessors, (144), 9 states have call successors, (60), 3 states have call predecessors, (60), 9 states have return successors, (57), 8 states have call predecessors, (57), 9 states have call successors, (57)
[2024-12-02 06:53:29,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:53:29,109 INFO L93 Difference]: Finished difference Result 408 states and 478 transitions.
[2024-12-02 06:53:29,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states.
[2024-12-02 06:53:29,110 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 20 states have (on average 7.2) internal successors, (144), 21 states have internal predecessors, (144), 9 states have call successors, (60), 3 states have call predecessors, (60), 9 states have return successors, (57), 8 states have call predecessors, (57), 9 states have call successors, (57) Word has length 221
[2024-12-02 06:53:29,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:53:29,111 INFO L225 Difference]: With dead ends: 408
[2024-12-02 06:53:29,111 INFO L226 Difference]: Without dead ends: 238
[2024-12-02 06:53:29,112 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 380 GetRequests, 345 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=124, Invalid=1208, Unknown=0, NotChecked=0, Total=1332
[2024-12-02 06:53:29,113 INFO L435 NwaCegarLoop]: 215 mSDtfsCounter, 37 mSDsluCounter, 2523 mSDsCounter, 0 mSdLazyCounter, 726 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 2738 SdHoareTripleChecker+Invalid, 734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 726 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time
[2024-12-02 06:53:29,113 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 2738 Invalid, 734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 726 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time]
[2024-12-02 06:53:29,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states.
[2024-12-02 06:53:29,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 233.
[2024-12-02 06:53:29,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 157 states have (on average 1.089171974522293) internal successors, (171), 159 states have internal predecessors, (171), 49 states have call successors, (49), 25 states have call predecessors, (49), 26 states have return successors, (49), 48 states have call predecessors, (49), 48 states have call successors, (49)
[2024-12-02 06:53:29,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 269 transitions.
[2024-12-02 06:53:29,133 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 269 transitions. Word has length 221
[2024-12-02 06:53:29,134 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:53:29,134 INFO L471 AbstractCegarLoop]: Abstraction has 233 states and 269 transitions.
[2024-12-02 06:53:29,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 20 states have (on average 7.2) internal successors, (144), 21 states have internal predecessors, (144), 9 states have call successors, (60), 3 states have call predecessors, (60), 9 states have return successors, (57), 8 states have call predecessors, (57), 9 states have call successors, (57)
[2024-12-02 06:53:29,134 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 269 transitions.
[2024-12-02 06:53:29,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230
[2024-12-02 06:53:29,135 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:53:29,136 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:53:29,162 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2024-12-02 06:53:29,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13
[2024-12-02 06:53:29,336 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 06:53:29,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:53:29,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1479880483, now seen corresponding path program 1 times
[2024-12-02 06:53:29,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 06:53:29,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976006416]
[2024-12-02 06:53:29,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:53:29,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 06:53:36,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:53:41,485 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 42 proven. 16 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked.
[2024-12-02 06:53:41,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 06:53:41,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976006416]
[2024-12-02 06:53:41,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976006416] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 06:53:41,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1574977756]
[2024-12-02 06:53:41,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:53:41,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:53:41,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:53:41,487 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 06:53:41,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-12-02 06:53:47,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:53:47,931 INFO L256 TraceCheckSpWp]: Trace formula consists of 4746 conjuncts, 38 conjuncts are in the unsatisfiable core
[2024-12-02 06:53:47,936 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:53:51,377 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 105 proven. 21 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked.
[2024-12-02 06:53:51,378 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 06:53:58,827 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 60 proven. 3 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked.
[2024-12-02 06:53:58,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1574977756] provided 0 perfect and 2 imperfect interpolant sequences
[2024-12-02 06:53:58,827 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-12-02 06:53:58,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15, 15] total 36
[2024-12-02 06:53:58,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464223806]
[2024-12-02 06:53:58,828 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-12-02 06:53:58,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states
[2024-12-02 06:53:58,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 06:53:58,829 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants.
[2024-12-02 06:53:58,830 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=1168, Unknown=0, NotChecked=0, Total=1260
[2024-12-02 06:53:58,830 INFO L87 Difference]: Start difference. First operand 233 states and 269 transitions. Second operand has 36 states, 31 states have (on average 4.32258064516129) internal successors, (134), 26 states have internal predecessors, (134), 8 states have call successors, (43), 3 states have call predecessors, (43), 14 states have return successors, (46), 12 states have call predecessors, (46), 8 states have call successors, (46)
[2024-12-02 06:54:05,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:54:05,344 INFO L93 Difference]: Finished difference Result 359 states and 418 transitions.
[2024-12-02 06:54:05,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states.
[2024-12-02 06:54:05,345 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 31 states have (on average 4.32258064516129) internal successors, (134), 26 states have internal predecessors, (134), 8 states have call successors, (43), 3 states have call predecessors, (43), 14 states have return successors, (46), 12 states have call predecessors, (46), 8 states have call successors, (46) Word has length 229
[2024-12-02 06:54:05,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:54:05,347 INFO L225 Difference]: With dead ends: 359
[2024-12-02 06:54:05,347 INFO L226 Difference]: Without dead ends: 242
[2024-12-02 06:54:05,347 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 473 GetRequests, 435 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=118, Invalid=1442, Unknown=0, NotChecked=0, Total=1560
[2024-12-02 06:54:05,348 INFO L435 NwaCegarLoop]: 214 mSDtfsCounter, 2 mSDsluCounter, 4937 mSDsCounter, 0 mSdLazyCounter, 861 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 5151 SdHoareTripleChecker+Invalid, 862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time
[2024-12-02 06:54:05,348 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 5151 Invalid, 862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 861 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time]
[2024-12-02 06:54:05,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states.
[2024-12-02 06:54:05,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 240.
[2024-12-02 06:54:05,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 162 states have (on average 1.0864197530864197) internal successors, (176), 164 states have internal predecessors, (176), 49 states have call successors, (49), 25 states have call predecessors, (49), 28 states have return successors, (51), 50 states have call predecessors, (51), 48 states have call successors, (51)
[2024-12-02 06:54:05,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 276 transitions.
[2024-12-02 06:54:05,368 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 276 transitions. Word has length 229
[2024-12-02 06:54:05,369 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:54:05,369 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 276 transitions.
[2024-12-02 06:54:05,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 31 states have (on average 4.32258064516129) internal successors, (134), 26 states have internal predecessors, (134), 8 states have call successors, (43), 3 states have call predecessors, (43), 14 states have return successors, (46), 12 states have call predecessors, (46), 8 states have call successors, (46)
[2024-12-02 06:54:05,369 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 276 transitions.
[2024-12-02 06:54:05,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234
[2024-12-02 06:54:05,370 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:54:05,371 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:54:05,400 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0
[2024-12-02 06:54:05,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:54:05,571 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 06:54:05,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:54:05,571 INFO L85 PathProgramCache]: Analyzing trace with hash 702435715, now seen corresponding path program 1 times
[2024-12-02 06:54:05,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 06:54:05,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625953319]
[2024-12-02 06:54:05,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:54:05,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 06:54:12,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:54:14,932 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked.
[2024-12-02 06:54:14,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 06:54:14,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625953319]
[2024-12-02 06:54:14,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625953319] provided 1 perfect and 0 imperfect interpolant sequences
[2024-12-02 06:54:14,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-12-02 06:54:14,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2024-12-02 06:54:14,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676622000]
[2024-12-02 06:54:14,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-12-02 06:54:14,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-12-02 06:54:14,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 06:54:14,934 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-12-02 06:54:14,934 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72
[2024-12-02 06:54:14,935 INFO L87 Difference]: Start difference. First operand 240 states and 276 transitions. Second operand has 9 states, 7 states have (on average 12.142857142857142) internal successors, (85), 6 states have internal predecessors, (85), 4 states have call successors, (33), 4 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30)
[2024-12-02 06:54:15,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:54:15,746 INFO L93 Difference]: Finished difference Result 246 states and 281 transitions.
[2024-12-02 06:54:15,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-12-02 06:54:15,746 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 12.142857142857142) internal successors, (85), 6 states have internal predecessors, (85), 4 states have call successors, (33), 4 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 233
[2024-12-02 06:54:15,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:54:15,748 INFO L225 Difference]: With dead ends: 246
[2024-12-02 06:54:15,748 INFO L226 Difference]: Without dead ends: 244
[2024-12-02 06:54:15,749 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156
[2024-12-02 06:54:15,749 INFO L435 NwaCegarLoop]: 228 mSDtfsCounter, 22 mSDsluCounter, 1563 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 1791 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-12-02 06:54:15,750 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 1791 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-12-02 06:54:15,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states.
[2024-12-02 06:54:15,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 244.
[2024-12-02 06:54:15,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 165 states have (on average 1.084848484848485) internal successors, (179), 167 states have internal predecessors, (179), 49 states have call successors, (49), 26 states have call predecessors, (49), 29 states have return successors, (51), 50 states have call predecessors, (51), 48 states have call successors, (51)
[2024-12-02 06:54:15,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 279 transitions.
[2024-12-02 06:54:15,762 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 279 transitions. Word has length 233
[2024-12-02 06:54:15,762 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:54:15,762 INFO L471 AbstractCegarLoop]: Abstraction has 244 states and 279 transitions.
[2024-12-02 06:54:15,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 12.142857142857142) internal successors, (85), 6 states have internal predecessors, (85), 4 states have call successors, (33), 4 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30)
[2024-12-02 06:54:15,763 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 279 transitions.
[2024-12-02 06:54:15,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269
[2024-12-02 06:54:15,764 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:54:15,764 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:54:15,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2024-12-02 06:54:15,764 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 06:54:15,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:54:15,764 INFO L85 PathProgramCache]: Analyzing trace with hash 344396401, now seen corresponding path program 1 times
[2024-12-02 06:54:15,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 06:54:15,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58507354]
[2024-12-02 06:54:15,764 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:54:15,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 06:54:23,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:54:29,345 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 68 proven. 15 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked.
[2024-12-02 06:54:29,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 06:54:29,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58507354]
[2024-12-02 06:54:29,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58507354] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 06:54:29,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2070705871]
[2024-12-02 06:54:29,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:54:29,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:54:29,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:54:29,348 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 06:54:29,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2024-12-02 06:54:36,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:54:36,444 INFO L256 TraceCheckSpWp]: Trace formula consists of 4881 conjuncts, 127 conjuncts are in the unsatisfiable core
[2024-12-02 06:54:36,451 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:54:37,634 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-12-02 06:54:41,196 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 1
[2024-12-02 06:54:54,064 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 6
[2024-12-02 06:54:56,965 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 18
[2024-12-02 06:55:02,992 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 292 proven. 37 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked.
[2024-12-02 06:55:02,992 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 06:55:07,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2070705871] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 06:55:07,091 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-12-02 06:55:07,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 31] total 43
[2024-12-02 06:55:07,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087276408]
[2024-12-02 06:55:07,091 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-12-02 06:55:07,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 43 states
[2024-12-02 06:55:07,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 06:55:07,093 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants.
[2024-12-02 06:55:07,094 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=2103, Unknown=0, NotChecked=0, Total=2256
[2024-12-02 06:55:07,094 INFO L87 Difference]: Start difference. First operand 244 states and 279 transitions. Second operand has 43 states, 36 states have (on average 6.361111111111111) internal successors, (229), 39 states have internal predecessors, (229), 19 states have call successors, (71), 5 states have call predecessors, (71), 15 states have return successors, (71), 20 states have call predecessors, (71), 19 states have call successors, (71)
[2024-12-02 06:55:58,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:55:58,817 INFO L93 Difference]: Finished difference Result 479 states and 539 transitions.
[2024-12-02 06:55:58,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states.
[2024-12-02 06:55:58,818 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 36 states have (on average 6.361111111111111) internal successors, (229), 39 states have internal predecessors, (229), 19 states have call successors, (71), 5 states have call predecessors, (71), 15 states have return successors, (71), 20 states have call predecessors, (71), 19 states have call successors, (71) Word has length 268
[2024-12-02 06:55:58,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:55:58,820 INFO L225 Difference]: With dead ends: 479
[2024-12-02 06:55:58,820 INFO L226 Difference]: Without dead ends: 354
[2024-12-02 06:55:58,822 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 228 SyntacticMatches, 30 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2313 ImplicationChecksByTransitivity, 39.1s TimeCoverageRelationStatistics Valid=643, Invalid=9059, Unknown=0, NotChecked=0, Total=9702
[2024-12-02 06:55:58,823 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 262 mSDsluCounter, 2432 mSDsCounter, 0 mSdLazyCounter, 4835 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 2567 SdHoareTripleChecker+Invalid, 4989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 4835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.8s IncrementalHoareTripleChecker+Time
[2024-12-02 06:55:58,823 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 2567 Invalid, 4989 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [154 Valid, 4835 Invalid, 0 Unknown, 0 Unchecked, 34.8s Time]
[2024-12-02 06:55:58,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states.
[2024-12-02 06:55:58,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 324.
[2024-12-02 06:55:58,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 224 states have (on average 1.0848214285714286) internal successors, (243), 228 states have internal predecessors, (243), 56 states have call successors, (56), 35 states have call predecessors, (56), 43 states have return successors, (63), 60 states have call predecessors, (63), 55 states have call successors, (63)
[2024-12-02 06:55:58,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 362 transitions.
[2024-12-02 06:55:58,850 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 362 transitions. Word has length 268
[2024-12-02 06:55:58,850 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:55:58,850 INFO L471 AbstractCegarLoop]: Abstraction has 324 states and 362 transitions.
[2024-12-02 06:55:58,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 36 states have (on average 6.361111111111111) internal successors, (229), 39 states have internal predecessors, (229), 19 states have call successors, (71), 5 states have call predecessors, (71), 15 states have return successors, (71), 20 states have call predecessors, (71), 19 states have call successors, (71)
[2024-12-02 06:55:58,850 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 362 transitions.
[2024-12-02 06:55:58,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273
[2024-12-02 06:55:58,851 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:55:58,852 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:55:58,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0
[2024-12-02 06:55:59,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:55:59,052 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 06:55:59,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:55:59,053 INFO L85 PathProgramCache]: Analyzing trace with hash 419672463, now seen corresponding path program 1 times
[2024-12-02 06:55:59,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 06:55:59,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530173910]
[2024-12-02 06:55:59,053 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:55:59,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 06:56:06,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:56:13,117 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 51 proven. 34 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked.
[2024-12-02 06:56:13,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 06:56:13,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530173910]
[2024-12-02 06:56:13,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530173910] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 06:56:13,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1663954110]
[2024-12-02 06:56:13,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-12-02 06:56:13,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:56:13,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:56:13,119 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 06:56:13,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2024-12-02 06:56:19,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-12-02 06:56:19,965 INFO L256 TraceCheckSpWp]: Trace formula consists of 4887 conjuncts, 134 conjuncts are in the unsatisfiable core
[2024-12-02 06:56:19,972 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-12-02 06:56:21,137 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2024-12-02 06:56:36,381 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8
[2024-12-02 06:56:39,363 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 20
[2024-12-02 06:56:46,439 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 277 proven. 19 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked.
[2024-12-02 06:56:46,439 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-12-02 06:56:50,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1663954110] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 06:56:50,717 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-12-02 06:56:50,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 32] total 45
[2024-12-02 06:56:50,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065978739]
[2024-12-02 06:56:50,718 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-12-02 06:56:50,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 45 states
[2024-12-02 06:56:50,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-12-02 06:56:50,719 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants.
[2024-12-02 06:56:50,720 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=2286, Unknown=0, NotChecked=0, Total=2450
[2024-12-02 06:56:50,720 INFO L87 Difference]: Start difference. First operand 324 states and 362 transitions. Second operand has 45 states, 36 states have (on average 6.083333333333333) internal successors, (219), 41 states have internal predecessors, (219), 18 states have call successors, (70), 5 states have call predecessors, (70), 15 states have return successors, (70), 17 states have call predecessors, (70), 18 states have call successors, (70)
[2024-12-02 06:58:05,979 WARN L286 SmtUtils]: Spent 16.19s on a formula simplification that was a NOOP. DAG size: 54 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2024-12-02 06:58:10,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-12-02 06:58:14,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-12-02 06:58:18,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-12-02 06:58:22,149 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-12-02 06:58:26,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-12-02 06:58:30,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-12-02 06:58:34,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-12-02 06:58:38,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-12-02 06:58:42,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-12-02 06:58:46,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-12-02 06:58:58,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-12-02 06:58:58,217 INFO L93 Difference]: Finished difference Result 626 states and 691 transitions.
[2024-12-02 06:58:58,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states.
[2024-12-02 06:58:58,218 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 36 states have (on average 6.083333333333333) internal successors, (219), 41 states have internal predecessors, (219), 18 states have call successors, (70), 5 states have call predecessors, (70), 15 states have return successors, (70), 17 states have call predecessors, (70), 18 states have call successors, (70) Word has length 272
[2024-12-02 06:58:58,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-12-02 06:58:58,220 INFO L225 Difference]: With dead ends: 626
[2024-12-02 06:58:58,220 INFO L226 Difference]: Without dead ends: 399
[2024-12-02 06:58:58,223 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 225 SyntacticMatches, 30 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2930 ImplicationChecksByTransitivity, 60.9s TimeCoverageRelationStatistics Valid=799, Invalid=11411, Unknown=0, NotChecked=0, Total=12210
[2024-12-02 06:58:58,223 INFO L435 NwaCegarLoop]: 137 mSDtfsCounter, 260 mSDsluCounter, 3204 mSDsCounter, 0 mSdLazyCounter, 6963 mSolverCounterSat, 145 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 88.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 3341 SdHoareTripleChecker+Invalid, 7118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 6963 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 89.9s IncrementalHoareTripleChecker+Time
[2024-12-02 06:58:58,223 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 3341 Invalid, 7118 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [145 Valid, 6963 Invalid, 10 Unknown, 0 Unchecked, 89.9s Time]
[2024-12-02 06:58:58,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states.
[2024-12-02 06:58:58,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 335.
[2024-12-02 06:58:58,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 234 states have (on average 1.0811965811965811) internal successors, (253), 236 states have internal predecessors, (253), 58 states have call successors, (58), 40 states have call predecessors, (58), 42 states have return successors, (59), 58 states have call predecessors, (59), 57 states have call successors, (59)
[2024-12-02 06:58:58,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 370 transitions.
[2024-12-02 06:58:58,340 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 370 transitions. Word has length 272
[2024-12-02 06:58:58,340 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-12-02 06:58:58,341 INFO L471 AbstractCegarLoop]: Abstraction has 335 states and 370 transitions.
[2024-12-02 06:58:58,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 36 states have (on average 6.083333333333333) internal successors, (219), 41 states have internal predecessors, (219), 18 states have call successors, (70), 5 states have call predecessors, (70), 15 states have return successors, (70), 17 states have call predecessors, (70), 18 states have call successors, (70)
[2024-12-02 06:58:58,341 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 370 transitions.
[2024-12-02 06:58:58,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277
[2024-12-02 06:58:58,342 INFO L210 NwaCegarLoop]: Found error trace
[2024-12-02 06:58:58,343 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-12-02 06:58:58,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0
[2024-12-02 06:58:58,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17
[2024-12-02 06:58:58,543 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-12-02 06:58:58,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-12-02 06:58:58,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1593631369, now seen corresponding path program 2 times
[2024-12-02 06:58:58,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-12-02 06:58:58,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690918366]
[2024-12-02 06:58:58,544 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-12-02 06:58:58,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-12-02 06:59:10,509 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-12-02 06:59:10,509 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-12-02 06:59:16,865 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 22 proven. 63 refuted. 0 times theorem prover too weak. 359 trivial. 0 not checked.
[2024-12-02 06:59:16,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-12-02 06:59:16,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690918366]
[2024-12-02 06:59:16,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690918366] provided 0 perfect and 1 imperfect interpolant sequences
[2024-12-02 06:59:16,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [88449399]
[2024-12-02 06:59:16,865 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-12-02 06:59:16,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-12-02 06:59:16,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1/z3
[2024-12-02 06:59:16,867 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-12-02 06:59:16,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60d257c9-b555-4d67-b40d-8096fce72d29/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process