./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_linked_list_begin_harness_negated.i --full-output --architecture 64bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version a0165632
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_linked_list_begin_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash cf0e38c8708298b6c669a06e84f1e143a32d8eb782624bd4425e7da323fbf6a8
--- Real Ultimate output ---
This is Ultimate 0.2.5-dev-a016563
[2024-11-08 16:56:53,869 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-08 16:56:53,995 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-64bit-Automizer_Default.epf
[2024-11-08 16:56:54,004 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-08 16:56:54,005 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-08 16:56:54,050 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-08 16:56:54,053 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-08 16:56:54,054 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-08 16:56:54,055 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-08 16:56:54,056 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-08 16:56:54,057 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-08 16:56:54,057 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-08 16:56:54,058 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-08 16:56:54,062 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-08 16:56:54,063 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-08 16:56:54,063 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-08 16:56:54,063 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-08 16:56:54,064 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-08 16:56:54,064 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-08 16:56:54,065 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-08 16:56:54,065 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-08 16:56:54,070 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-08 16:56:54,071 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-08 16:56:54,071 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-08 16:56:54,071 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-08 16:56:54,072 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-08 16:56:54,072 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-08 16:56:54,072 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-08 16:56:54,073 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-08 16:56:54,073 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 16:56:54,073 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-08 16:56:54,074 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-08 16:56:54,074 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-08 16:56:54,075 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-08 16:56:54,075 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-08 16:56:54,076 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-08 16:56:54,077 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-08 16:56:54,077 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-08 16:56:54,077 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-08 16:56:54,078 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cf0e38c8708298b6c669a06e84f1e143a32d8eb782624bd4425e7da323fbf6a8
[2024-11-08 16:56:54,468 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-08 16:56:54,519 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-08 16:56:54,523 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-08 16:56:54,525 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-08 16:56:54,526 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-08 16:56:54,528 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/aws-c-common/aws_linked_list_begin_harness_negated.i
Unable to find full path for "g++"
[2024-11-08 16:56:57,262 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-08 16:56:58,058 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-08 16:56:58,059 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/sv-benchmarks/c/aws-c-common/aws_linked_list_begin_harness_negated.i
[2024-11-08 16:56:58,119 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/data/e85d11427/63b865740f134c3b89fc3a0500529ad8/FLAGeabe0bc5d
[2024-11-08 16:56:58,380 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/data/e85d11427/63b865740f134c3b89fc3a0500529ad8
[2024-11-08 16:56:58,385 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-08 16:56:58,390 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-08 16:56:58,391 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-08 16:56:58,392 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-08 16:56:58,400 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-08 16:56:58,401 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:56:58" (1/1) ...
[2024-11-08 16:56:58,405 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56319090 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:56:58, skipping insertion in model container
[2024-11-08 16:56:58,405 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:56:58" (1/1) ...
[2024-11-08 16:56:58,547 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-08 16:56:58,990 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_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/sv-benchmarks/c/aws-c-common/aws_linked_list_begin_harness_negated.i[4495,4508]
[2024-11-08 16:56:59,001 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_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/sv-benchmarks/c/aws-c-common/aws_linked_list_begin_harness_negated.i[4555,4568]
[2024-11-08 16:57:00,156 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 16:57:00,158 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 16:57:00,159 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 16:57:00,160 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 16:57:00,162 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 16:57:00,187 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 16:57:00,188 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 16:57:00,192 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 16:57:00,193 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 16:57:00,197 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 16:57:00,199 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 16:57:00,200 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 16:57:00,201 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 16:57:01,398 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_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/sv-benchmarks/c/aws-c-common/aws_linked_list_begin_harness_negated.i[150686,150699]
[2024-11-08 16:57:01,404 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 16:57:01,447 INFO L200 MainTranslator]: Completed pre-run
[2024-11-08 16:57:01,472 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_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/sv-benchmarks/c/aws-c-common/aws_linked_list_begin_harness_negated.i[4495,4508]
[2024-11-08 16:57:01,476 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_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/sv-benchmarks/c/aws-c-common/aws_linked_list_begin_harness_negated.i[4555,4568]
[2024-11-08 16:57:01,580 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 16:57:01,581 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 16:57:01,581 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 16:57:01,582 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 16:57:01,583 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 16:57:01,605 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 16:57:01,609 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 16:57:01,610 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 16:57:01,611 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 16:57:01,613 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 16:57:01,614 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 16:57:01,615 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 16:57:01,616 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 16:57:01,780 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_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/sv-benchmarks/c/aws-c-common/aws_linked_list_begin_harness_negated.i[150686,150699]
[2024-11-08 16:57:01,781 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 16:57:02,040 INFO L204 MainTranslator]: Completed translation
[2024-11-08 16:57:02,041 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:02 WrapperNode
[2024-11-08 16:57:02,041 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-08 16:57:02,043 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-08 16:57:02,043 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-08 16:57:02,043 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-08 16:57:02,053 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:02" (1/1) ...
[2024-11-08 16:57:02,130 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:02" (1/1) ...
[2024-11-08 16:57:02,186 INFO L138 Inliner]: procedures = 668, calls = 1039, calls flagged for inlining = 53, calls inlined = 6, statements flattened = 141
[2024-11-08 16:57:02,186 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-08 16:57:02,187 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-08 16:57:02,187 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-08 16:57:02,188 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-08 16:57:02,206 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:02" (1/1) ...
[2024-11-08 16:57:02,206 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:02" (1/1) ...
[2024-11-08 16:57:02,211 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:02" (1/1) ...
[2024-11-08 16:57:02,256 INFO L175 MemorySlicer]: Split 24 memory accesses to 3 slices as follows [2, 17, 5]. 71 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 0, 5]. The 6 writes are split as follows [0, 6, 0].
[2024-11-08 16:57:02,260 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:02" (1/1) ...
[2024-11-08 16:57:02,260 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:02" (1/1) ...
[2024-11-08 16:57:02,286 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:02" (1/1) ...
[2024-11-08 16:57:02,294 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:02" (1/1) ...
[2024-11-08 16:57:02,302 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:02" (1/1) ...
[2024-11-08 16:57:02,308 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:02" (1/1) ...
[2024-11-08 16:57:02,320 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-08 16:57:02,321 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-08 16:57:02,321 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-08 16:57:02,322 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-08 16:57:02,323 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:02" (1/1) ...
[2024-11-08 16:57:02,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 16:57:02,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 16:57:02,361 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-08 16:57:02,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-08 16:57:02,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-11-08 16:57:02,407 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2024-11-08 16:57:02,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2024-11-08 16:57:02,410 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_next_is_valid
[2024-11-08 16:57:02,410 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_next_is_valid
[2024-11-08 16:57:02,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2024-11-08 16:57:02,410 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_is_valid
[2024-11-08 16:57:02,411 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_is_valid
[2024-11-08 16:57:02,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-08 16:57:02,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0
[2024-11-08 16:57:02,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1
[2024-11-08 16:57:02,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2
[2024-11-08 16:57:02,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-08 16:57:02,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-08 16:57:02,412 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-08 16:57:02,414 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-08 16:57:02,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-11-08 16:57:02,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0
[2024-11-08 16:57:02,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1
[2024-11-08 16:57:02,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2
[2024-11-08 16:57:02,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0
[2024-11-08 16:57:02,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1
[2024-11-08 16:57:02,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2
[2024-11-08 16:57:02,416 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t
[2024-11-08 16:57:02,416 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t
[2024-11-08 16:57:02,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-08 16:57:02,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2024-11-08 16:57:02,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2
[2024-11-08 16:57:02,803 INFO L238 CfgBuilder]: Building ICFG
[2024-11-08 16:57:02,805 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-08 16:57:03,180 INFO L? ?]: Removed 60 outVars from TransFormulas that were not future-live.
[2024-11-08 16:57:03,180 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-08 16:57:03,202 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-08 16:57:03,202 INFO L316 CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-08 16:57:03,206 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:57:03 BoogieIcfgContainer
[2024-11-08 16:57:03,206 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-08 16:57:03,209 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-08 16:57:03,209 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-08 16:57:03,216 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-08 16:57:03,217 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:56:58" (1/3) ...
[2024-11-08 16:57:03,218 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d97408d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:57:03, skipping insertion in model container
[2024-11-08 16:57:03,219 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:57:02" (2/3) ...
[2024-11-08 16:57:03,220 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d97408d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:57:03, skipping insertion in model container
[2024-11-08 16:57:03,220 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:57:03" (3/3) ...
[2024-11-08 16:57:03,224 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_linked_list_begin_harness_negated.i
[2024-11-08 16:57:03,249 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-08 16:57:03,250 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-08 16:57:03,330 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-08 16:57:03,339 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;@17ddf64d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-08 16:57:03,340 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-08 16:57:03,345 INFO L276 IsEmpty]: Start isEmpty. Operand has 70 states, 50 states have (on average 1.34) internal successors, (67), 51 states have internal predecessors, (67), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13)
[2024-11-08 16:57:03,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69
[2024-11-08 16:57:03,359 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:57:03,360 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 16:57:03,361 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 16:57:03,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:57:03,370 INFO L85 PathProgramCache]: Analyzing trace with hash -232165965, now seen corresponding path program 1 times
[2024-11-08 16:57:03,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:57:03,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864093720]
[2024-11-08 16:57:03,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:57:03,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:57:03,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:57:04,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 16:57:04,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:57:04,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7
[2024-11-08 16:57:04,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:57:04,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16
[2024-11-08 16:57:04,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:57:04,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28
[2024-11-08 16:57:04,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:57:04,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34
[2024-11-08 16:57:04,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:57:04,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46
[2024-11-08 16:57:04,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:57:04,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52
[2024-11-08 16:57:04,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:57:04,358 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked.
[2024-11-08 16:57:04,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:57:04,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864093720]
[2024-11-08 16:57:04,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864093720] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 16:57:04,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 16:57:04,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 16:57:04,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409368901]
[2024-11-08 16:57:04,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 16:57:04,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-08 16:57:04,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 16:57:04,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-08 16:57:04,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-08 16:57:04,418 INFO L87 Difference]: Start difference. First operand has 70 states, 50 states have (on average 1.34) internal successors, (67), 51 states have internal predecessors, (67), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7)
[2024-11-08 16:57:04,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:57:04,453 INFO L93 Difference]: Finished difference Result 132 states and 184 transitions.
[2024-11-08 16:57:04,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-08 16:57:04,457 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 68
[2024-11-08 16:57:04,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:57:04,466 INFO L225 Difference]: With dead ends: 132
[2024-11-08 16:57:04,466 INFO L226 Difference]: Without dead ends: 65
[2024-11-08 16:57:04,471 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-08 16:57:04,475 INFO L432 NwaCegarLoop]: 91 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, 91 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
[2024-11-08 16:57:04,477 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 16:57:04,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states.
[2024-11-08 16:57:04,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65.
[2024-11-08 16:57:04,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 46 states have (on average 1.326086956521739) internal successors, (61), 47 states have internal predecessors, (61), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12)
[2024-11-08 16:57:04,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 86 transitions.
[2024-11-08 16:57:04,529 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 86 transitions. Word has length 68
[2024-11-08 16:57:04,530 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:57:04,530 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 86 transitions.
[2024-11-08 16:57:04,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7)
[2024-11-08 16:57:04,531 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 86 transitions.
[2024-11-08 16:57:04,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69
[2024-11-08 16:57:04,535 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:57:04,535 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 16:57:04,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-11-08 16:57:04,536 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 16:57:04,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:57:04,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1518473935, now seen corresponding path program 1 times
[2024-11-08 16:57:04,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:57:04,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347942909]
[2024-11-08 16:57:04,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:57:04,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:57:04,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:57:05,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 16:57:05,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:57:05,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7
[2024-11-08 16:57:05,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:57:05,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16
[2024-11-08 16:57:05,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:57:05,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28
[2024-11-08 16:57:05,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:57:05,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34
[2024-11-08 16:57:05,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:57:05,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46
[2024-11-08 16:57:05,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:57:05,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52
[2024-11-08 16:57:05,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:57:05,732 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked.
[2024-11-08 16:57:05,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:57:05,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347942909]
[2024-11-08 16:57:05,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347942909] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 16:57:05,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1300349009]
[2024-11-08 16:57:05,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:57:05,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:57:05,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 16:57:05,739 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 16:57:05,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-08 16:57:06,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:57:06,089 INFO L255 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 56 conjuncts are in the unsatisfiable core
[2024-11-08 16:57:06,104 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 16:57:06,329 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7
[2024-11-08 16:57:06,356 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15
[2024-11-08 16:57:06,570 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 16:57:06,572 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 16:57:06,574 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 16:57:06,588 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 32
[2024-11-08 16:57:06,619 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 16:57:06,622 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 16:57:06,624 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 11
[2024-11-08 16:57:07,610 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2024-11-08 16:57:07,610 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 16:57:07,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1300349009] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 16:57:07,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-08 16:57:07,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [6] total 13
[2024-11-08 16:57:07,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001289653]
[2024-11-08 16:57:07,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 16:57:07,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-08 16:57:07,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 16:57:07,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-08 16:57:07,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156
[2024-11-08 16:57:07,619 INFO L87 Difference]: Start difference. First operand 65 states and 86 transitions. Second operand has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7)
[2024-11-08 16:57:08,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:57:08,618 INFO L93 Difference]: Finished difference Result 177 states and 242 transitions.
[2024-11-08 16:57:08,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-11-08 16:57:08,619 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) Word has length 68
[2024-11-08 16:57:08,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:57:08,623 INFO L225 Difference]: With dead ends: 177
[2024-11-08 16:57:08,623 INFO L226 Difference]: Without dead ends: 126
[2024-11-08 16:57:08,624 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210
[2024-11-08 16:57:08,626 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 76 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-11-08 16:57:08,626 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 375 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-11-08 16:57:08,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states.
[2024-11-08 16:57:08,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 122.
[2024-11-08 16:57:08,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 87 states have (on average 1.3563218390804597) internal successors, (118), 90 states have internal predecessors, (118), 24 states have call successors, (24), 9 states have call predecessors, (24), 10 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24)
[2024-11-08 16:57:08,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 166 transitions.
[2024-11-08 16:57:08,658 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 166 transitions. Word has length 68
[2024-11-08 16:57:08,658 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:57:08,658 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 166 transitions.
[2024-11-08 16:57:08,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7)
[2024-11-08 16:57:08,659 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 166 transitions.
[2024-11-08 16:57:08,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69
[2024-11-08 16:57:08,661 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:57:08,665 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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]
[2024-11-08 16:57:08,695 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-08 16:57:08,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:57:08,867 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 16:57:08,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:57:08,868 INFO L85 PathProgramCache]: Analyzing trace with hash 727105519, now seen corresponding path program 1 times
[2024-11-08 16:57:08,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:57:08,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145382247]
[2024-11-08 16:57:08,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:57:08,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:57:08,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:57:09,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 16:57:09,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:57:09,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7
[2024-11-08 16:57:09,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:57:09,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16
[2024-11-08 16:57:09,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:57:09,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28
[2024-11-08 16:57:09,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:57:09,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34
[2024-11-08 16:57:09,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:57:09,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46
[2024-11-08 16:57:09,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:57:09,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52
[2024-11-08 16:57:09,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:57:09,652 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked.
[2024-11-08 16:57:09,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:57:09,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145382247]
[2024-11-08 16:57:09,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145382247] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 16:57:09,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1928040128]
[2024-11-08 16:57:09,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:57:09,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:57:09,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 16:57:09,660 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 16:57:09,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-08 16:57:09,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:57:09,918 INFO L255 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 42 conjuncts are in the unsatisfiable core
[2024-11-08 16:57:09,925 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 16:57:10,142 INFO L349 Elim1Store]: treesize reduction 42, result has 31.1 percent of original size
[2024-11-08 16:57:10,142 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 80
[2024-11-08 16:57:10,162 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 15
[2024-11-08 16:57:10,216 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-08 16:57:10,217 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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
[2024-11-08 16:57:10,270 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-08 16:57:10,272 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 29 treesize of output 13
[2024-11-08 16:57:10,279 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 13 treesize of output 9
[2024-11-08 16:57:10,916 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size
[2024-11-08 16:57:10,916 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 10
[2024-11-08 16:57:10,928 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2024-11-08 16:57:10,929 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 16:57:10,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1928040128] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 16:57:10,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-08 16:57:10,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [6] total 15
[2024-11-08 16:57:10,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331699096]
[2024-11-08 16:57:10,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 16:57:10,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-11-08 16:57:10,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 16:57:10,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-11-08 16:57:10,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210
[2024-11-08 16:57:10,932 INFO L87 Difference]: Start difference. First operand 122 states and 166 transitions. Second operand has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 10 states have internal predecessors, (40), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7)
[2024-11-08 16:57:14,957 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]
[2024-11-08 16:57:19,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 16:57:23,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 16:57:27,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 16:57:31,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 16:57:32,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:57:32,409 INFO L93 Difference]: Finished difference Result 195 states and 274 transitions.
[2024-11-08 16:57:32,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2024-11-08 16:57:32,411 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 10 states have internal predecessors, (40), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) Word has length 68
[2024-11-08 16:57:32,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:57:32,417 INFO L225 Difference]: With dead ends: 195
[2024-11-08 16:57:32,418 INFO L226 Difference]: Without dead ends: 141
[2024-11-08 16:57:32,419 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=98, Invalid=454, Unknown=0, NotChecked=0, Total=552
[2024-11-08 16:57:32,424 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 239 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 57 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.1s IncrementalHoareTripleChecker+Time
[2024-11-08 16:57:32,424 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 488 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 278 Invalid, 5 Unknown, 0 Unchecked, 21.1s Time]
[2024-11-08 16:57:32,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states.
[2024-11-08 16:57:32,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 133.
[2024-11-08 16:57:32,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 97 states have (on average 1.3917525773195876) internal successors, (135), 100 states have internal predecessors, (135), 25 states have call successors, (25), 9 states have call predecessors, (25), 10 states have return successors, (25), 23 states have call predecessors, (25), 23 states have call successors, (25)
[2024-11-08 16:57:32,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 185 transitions.
[2024-11-08 16:57:32,459 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 185 transitions. Word has length 68
[2024-11-08 16:57:32,462 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:57:32,462 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 185 transitions.
[2024-11-08 16:57:32,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 10 states have internal predecessors, (40), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7)
[2024-11-08 16:57:32,463 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 185 transitions.
[2024-11-08 16:57:32,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69
[2024-11-08 16:57:32,470 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:57:32,470 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 16:57:32,501 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-08 16:57:32,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:57:32,675 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 16:57:32,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:57:32,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1639589075, now seen corresponding path program 1 times
[2024-11-08 16:57:32,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:57:32,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322488586]
[2024-11-08 16:57:32,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:57:32,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:57:32,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:57:33,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 16:57:33,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:57:33,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7
[2024-11-08 16:57:33,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:57:33,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16
[2024-11-08 16:57:33,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:57:33,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28
[2024-11-08 16:57:33,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:57:33,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34
[2024-11-08 16:57:33,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:57:33,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46
[2024-11-08 16:57:33,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:57:33,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52
[2024-11-08 16:57:33,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:57:33,362 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked.
[2024-11-08 16:57:33,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:57:33,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322488586]
[2024-11-08 16:57:33,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322488586] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 16:57:33,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [99150095]
[2024-11-08 16:57:33,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:57:33,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:57:33,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 16:57:33,366 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 16:57:33,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-08 16:57:33,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:57:33,625 INFO L255 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 46 conjuncts are in the unsatisfiable core
[2024-11-08 16:57:33,633 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 16:57:33,730 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7
[2024-11-08 16:57:33,742 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15
[2024-11-08 16:57:33,858 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 16:57:33,860 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 16:57:33,862 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 16:57:33,874 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 21
[2024-11-08 16:57:33,895 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 16:57:33,897 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 16:57:33,899 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 11
[2024-11-08 16:57:35,666 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked.
[2024-11-08 16:57:35,666 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 16:57:35,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [99150095] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 16:57:35,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-08 16:57:35,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14
[2024-11-08 16:57:35,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173417742]
[2024-11-08 16:57:35,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 16:57:35,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-08 16:57:35,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 16:57:35,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-08 16:57:35,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182
[2024-11-08 16:57:35,670 INFO L87 Difference]: Start difference. First operand 133 states and 185 transitions. Second operand has 10 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 4 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7)
[2024-11-08 16:57:36,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:57:36,613 INFO L93 Difference]: Finished difference Result 203 states and 283 transitions.
[2024-11-08 16:57:36,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-11-08 16:57:36,615 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 4 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 68
[2024-11-08 16:57:36,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:57:36,618 INFO L225 Difference]: With dead ends: 203
[2024-11-08 16:57:36,618 INFO L226 Difference]: Without dead ends: 139
[2024-11-08 16:57:36,620 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 66 SyntacticMatches, 8 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272
[2024-11-08 16:57:36,621 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 60 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-08 16:57:36,621 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 451 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-08 16:57:36,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states.
[2024-11-08 16:57:36,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 133.
[2024-11-08 16:57:36,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 97 states have (on average 1.3814432989690721) internal successors, (134), 100 states have internal predecessors, (134), 25 states have call successors, (25), 9 states have call predecessors, (25), 10 states have return successors, (25), 23 states have call predecessors, (25), 23 states have call successors, (25)
[2024-11-08 16:57:36,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 184 transitions.
[2024-11-08 16:57:36,647 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 184 transitions. Word has length 68
[2024-11-08 16:57:36,647 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:57:36,647 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 184 transitions.
[2024-11-08 16:57:36,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.2) internal successors, (42), 10 states have internal predecessors, (42), 4 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7)
[2024-11-08 16:57:36,648 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 184 transitions.
[2024-11-08 16:57:36,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69
[2024-11-08 16:57:36,650 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:57:36,650 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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]
[2024-11-08 16:57:36,673 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-11-08 16:57:36,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:57:36,855 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 16:57:36,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:57:36,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1908071209, now seen corresponding path program 1 times
[2024-11-08 16:57:36,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:57:36,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346595005]
[2024-11-08 16:57:36,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:57:36,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:57:36,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:57:37,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 16:57:37,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:57:37,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7
[2024-11-08 16:57:37,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:57:37,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16
[2024-11-08 16:57:37,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:57:37,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28
[2024-11-08 16:57:37,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:57:37,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34
[2024-11-08 16:57:37,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:57:37,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46
[2024-11-08 16:57:37,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:57:37,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52
[2024-11-08 16:57:37,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:57:37,384 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked.
[2024-11-08 16:57:37,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:57:37,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346595005]
[2024-11-08 16:57:37,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346595005] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 16:57:37,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1020608190]
[2024-11-08 16:57:37,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:57:37,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:57:37,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 16:57:37,391 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 16:57:37,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-08 16:57:37,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:57:37,629 INFO L255 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 34 conjuncts are in the unsatisfiable core
[2024-11-08 16:57:37,637 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 16:57:37,813 INFO L349 Elim1Store]: treesize reduction 42, result has 31.1 percent of original size
[2024-11-08 16:57:37,813 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 80
[2024-11-08 16:57:37,825 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 15
[2024-11-08 16:57:37,838 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-08 16:57:37,839 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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
[2024-11-08 16:57:37,898 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-08 16:57:37,899 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 29 treesize of output 13
[2024-11-08 16:57:37,904 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 13 treesize of output 9
[2024-11-08 16:57:39,121 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked.
[2024-11-08 16:57:39,121 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 16:57:39,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1020608190] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 16:57:39,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-08 16:57:39,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [6] total 16
[2024-11-08 16:57:39,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609360663]
[2024-11-08 16:57:39,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 16:57:39,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-11-08 16:57:39,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 16:57:39,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-11-08 16:57:39,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240
[2024-11-08 16:57:39,125 INFO L87 Difference]: Start difference. First operand 133 states and 184 transitions. Second operand has 12 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 12 states have internal predecessors, (41), 4 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7)
[2024-11-08 16:57:43,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 16:57:47,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 16:57:51,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 16:57:55,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 16:57:59,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 16:58:03,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 16:58:04,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:58:04,120 INFO L93 Difference]: Finished difference Result 201 states and 278 transitions.
[2024-11-08 16:58:04,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2024-11-08 16:58:04,120 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 12 states have internal predecessors, (41), 4 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 68
[2024-11-08 16:58:04,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:58:04,123 INFO L225 Difference]: With dead ends: 201
[2024-11-08 16:58:04,123 INFO L226 Difference]: Without dead ends: 126
[2024-11-08 16:58:04,124 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 65 SyntacticMatches, 8 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=109, Invalid=541, Unknown=0, NotChecked=0, Total=650
[2024-11-08 16:58:04,125 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 214 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 54 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.7s IncrementalHoareTripleChecker+Time
[2024-11-08 16:58:04,126 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 490 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 308 Invalid, 6 Unknown, 0 Unchecked, 24.7s Time]
[2024-11-08 16:58:04,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states.
[2024-11-08 16:58:04,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 122.
[2024-11-08 16:58:04,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 88 states have (on average 1.3409090909090908) internal successors, (118), 90 states have internal predecessors, (118), 24 states have call successors, (24), 9 states have call predecessors, (24), 9 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22)
[2024-11-08 16:58:04,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 164 transitions.
[2024-11-08 16:58:04,158 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 164 transitions. Word has length 68
[2024-11-08 16:58:04,158 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:58:04,159 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 164 transitions.
[2024-11-08 16:58:04,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 12 states have internal predecessors, (41), 4 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7)
[2024-11-08 16:58:04,159 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 164 transitions.
[2024-11-08 16:58:04,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69
[2024-11-08 16:58:04,161 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:58:04,162 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 16:58:04,189 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-11-08 16:58:04,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:58:04,367 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 16:58:04,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:58:04,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1005571109, now seen corresponding path program 1 times
[2024-11-08 16:58:04,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:58:04,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002949185]
[2024-11-08 16:58:04,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:58:04,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:58:04,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:04,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 16:58:04,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:04,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7
[2024-11-08 16:58:04,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:04,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16
[2024-11-08 16:58:04,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:04,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28
[2024-11-08 16:58:04,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:04,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34
[2024-11-08 16:58:04,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:04,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46
[2024-11-08 16:58:04,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:04,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52
[2024-11-08 16:58:04,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:04,795 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked.
[2024-11-08 16:58:04,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:58:04,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002949185]
[2024-11-08 16:58:04,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002949185] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 16:58:04,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1107234795]
[2024-11-08 16:58:04,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:58:04,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:58:04,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 16:58:04,798 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 16:58:04,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-08 16:58:05,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:05,048 INFO L255 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 51 conjuncts are in the unsatisfiable core
[2024-11-08 16:58:05,053 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 16:58:05,129 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7
[2024-11-08 16:58:05,146 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15
[2024-11-08 16:58:05,245 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 16:58:05,248 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 16:58:05,250 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 11
[2024-11-08 16:58:05,266 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 16:58:05,268 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 16:58:05,273 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 16:58:05,284 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 21
[2024-11-08 16:58:06,540 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-08 16:58:06,540 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 16:58:06,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1107234795] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 16:58:06,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-08 16:58:06,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [6] total 15
[2024-11-08 16:58:06,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385266513]
[2024-11-08 16:58:06,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 16:58:06,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-11-08 16:58:06,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 16:58:06,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-11-08 16:58:06,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210
[2024-11-08 16:58:06,544 INFO L87 Difference]: Start difference. First operand 122 states and 164 transitions. Second operand has 11 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 4 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7)
[2024-11-08 16:58:07,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:58:07,685 INFO L93 Difference]: Finished difference Result 198 states and 274 transitions.
[2024-11-08 16:58:07,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2024-11-08 16:58:07,686 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 4 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 68
[2024-11-08 16:58:07,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:58:07,688 INFO L225 Difference]: With dead ends: 198
[2024-11-08 16:58:07,688 INFO L226 Difference]: Without dead ends: 128
[2024-11-08 16:58:07,689 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 69 SyntacticMatches, 4 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380
[2024-11-08 16:58:07,692 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 84 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2024-11-08 16:58:07,694 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 523 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2024-11-08 16:58:07,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states.
[2024-11-08 16:58:07,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 124.
[2024-11-08 16:58:07,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 90 states have (on average 1.3333333333333333) internal successors, (120), 92 states have internal predecessors, (120), 24 states have call successors, (24), 9 states have call predecessors, (24), 9 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22)
[2024-11-08 16:58:07,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 166 transitions.
[2024-11-08 16:58:07,726 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 166 transitions. Word has length 68
[2024-11-08 16:58:07,726 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:58:07,726 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 166 transitions.
[2024-11-08 16:58:07,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 4 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7)
[2024-11-08 16:58:07,727 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 166 transitions.
[2024-11-08 16:58:07,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69
[2024-11-08 16:58:07,729 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:58:07,729 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 16:58:07,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2024-11-08 16:58:07,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5
[2024-11-08 16:58:07,930 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 16:58:07,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:58:07,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1069436449, now seen corresponding path program 1 times
[2024-11-08 16:58:07,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:58:07,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316952853]
[2024-11-08 16:58:07,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:58:07,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:58:07,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:08,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 16:58:08,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:08,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7
[2024-11-08 16:58:08,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:08,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16
[2024-11-08 16:58:08,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:08,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28
[2024-11-08 16:58:08,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:08,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34
[2024-11-08 16:58:08,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:08,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46
[2024-11-08 16:58:08,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:08,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52
[2024-11-08 16:58:08,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:08,951 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked.
[2024-11-08 16:58:08,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:58:08,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316952853]
[2024-11-08 16:58:08,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316952853] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 16:58:08,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1836641885]
[2024-11-08 16:58:08,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:58:08,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:58:08,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 16:58:08,954 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 16:58:08,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-11-08 16:58:09,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:09,200 INFO L255 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 37 conjuncts are in the unsatisfiable core
[2024-11-08 16:58:09,204 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 16:58:09,295 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 16:58:09,298 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7
[2024-11-08 16:58:10,313 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked.
[2024-11-08 16:58:10,314 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 16:58:10,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1836641885] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 16:58:10,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-08 16:58:10,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [9] total 16
[2024-11-08 16:58:10,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732008592]
[2024-11-08 16:58:10,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 16:58:10,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-11-08 16:58:10,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 16:58:10,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-11-08 16:58:10,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240
[2024-11-08 16:58:10,320 INFO L87 Difference]: Start difference. First operand 124 states and 166 transitions. Second operand has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 4 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7)
[2024-11-08 16:58:11,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:58:11,208 INFO L93 Difference]: Finished difference Result 206 states and 283 transitions.
[2024-11-08 16:58:11,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2024-11-08 16:58:11,209 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 4 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 68
[2024-11-08 16:58:11,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:58:11,211 INFO L225 Difference]: With dead ends: 206
[2024-11-08 16:58:11,211 INFO L226 Difference]: Without dead ends: 130
[2024-11-08 16:58:11,212 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 67 SyntacticMatches, 8 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380
[2024-11-08 16:58:11,214 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 104 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2024-11-08 16:58:11,216 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 495 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2024-11-08 16:58:11,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states.
[2024-11-08 16:58:11,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 126.
[2024-11-08 16:58:11,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 92 states have (on average 1.326086956521739) internal successors, (122), 94 states have internal predecessors, (122), 24 states have call successors, (24), 9 states have call predecessors, (24), 9 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22)
[2024-11-08 16:58:11,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 168 transitions.
[2024-11-08 16:58:11,261 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 168 transitions. Word has length 68
[2024-11-08 16:58:11,265 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:58:11,265 INFO L471 AbstractCegarLoop]: Abstraction has 126 states and 168 transitions.
[2024-11-08 16:58:11,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 4 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7)
[2024-11-08 16:58:11,265 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 168 transitions.
[2024-11-08 16:58:11,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69
[2024-11-08 16:58:11,267 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:58:11,267 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 16:58:11,299 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0
[2024-11-08 16:58:11,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6
[2024-11-08 16:58:11,469 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 16:58:11,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:58:11,469 INFO L85 PathProgramCache]: Analyzing trace with hash 2008092953, now seen corresponding path program 1 times
[2024-11-08 16:58:11,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:58:11,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682699334]
[2024-11-08 16:58:11,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:58:11,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:58:11,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:11,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 16:58:11,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:11,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7
[2024-11-08 16:58:11,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:11,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16
[2024-11-08 16:58:11,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:11,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28
[2024-11-08 16:58:11,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:11,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34
[2024-11-08 16:58:11,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:11,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46
[2024-11-08 16:58:11,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:11,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52
[2024-11-08 16:58:11,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:11,834 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked.
[2024-11-08 16:58:11,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:58:11,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682699334]
[2024-11-08 16:58:11,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682699334] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 16:58:11,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [924661993]
[2024-11-08 16:58:11,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:58:11,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:58:11,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 16:58:11,839 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 16:58:11,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2024-11-08 16:58:12,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:12,080 INFO L255 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-08 16:58:12,082 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 16:58:12,171 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2024-11-08 16:58:12,171 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 16:58:12,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [924661993] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 16:58:12,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-08 16:58:12,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9
[2024-11-08 16:58:12,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761435265]
[2024-11-08 16:58:12,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 16:58:12,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 16:58:12,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 16:58:12,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 16:58:12,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72
[2024-11-08 16:58:12,174 INFO L87 Difference]: Start difference. First operand 126 states and 168 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7)
[2024-11-08 16:58:12,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:58:12,338 INFO L93 Difference]: Finished difference Result 265 states and 364 transitions.
[2024-11-08 16:58:12,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-08 16:58:12,339 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 68
[2024-11-08 16:58:12,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:58:12,341 INFO L225 Difference]: With dead ends: 265
[2024-11-08 16:58:12,341 INFO L226 Difference]: Without dead ends: 158
[2024-11-08 16:58:12,342 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132
[2024-11-08 16:58:12,343 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 119 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 16:58:12,344 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 229 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 16:58:12,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states.
[2024-11-08 16:58:12,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158.
[2024-11-08 16:58:12,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 120 states have (on average 1.3666666666666667) internal successors, (164), 124 states have internal predecessors, (164), 26 states have call successors, (26), 9 states have call predecessors, (26), 11 states have return successors, (28), 24 states have call predecessors, (28), 24 states have call successors, (28)
[2024-11-08 16:58:12,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 218 transitions.
[2024-11-08 16:58:12,374 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 218 transitions. Word has length 68
[2024-11-08 16:58:12,374 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:58:12,374 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 218 transitions.
[2024-11-08 16:58:12,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7)
[2024-11-08 16:58:12,375 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 218 transitions.
[2024-11-08 16:58:12,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71
[2024-11-08 16:58:12,377 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:58:12,378 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 16:58:12,394 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0
[2024-11-08 16:58:12,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7
[2024-11-08 16:58:12,578 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 16:58:12,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:58:12,579 INFO L85 PathProgramCache]: Analyzing trace with hash -552943476, now seen corresponding path program 1 times
[2024-11-08 16:58:12,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:58:12,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062413449]
[2024-11-08 16:58:12,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:58:12,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:58:12,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:13,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 16:58:13,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:13,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7
[2024-11-08 16:58:13,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:13,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2024-11-08 16:58:13,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:13,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30
[2024-11-08 16:58:13,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:13,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36
[2024-11-08 16:58:13,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:13,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48
[2024-11-08 16:58:13,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:13,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54
[2024-11-08 16:58:13,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:13,139 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked.
[2024-11-08 16:58:13,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:58:13,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062413449]
[2024-11-08 16:58:13,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062413449] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 16:58:13,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 16:58:13,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-08 16:58:13,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757926997]
[2024-11-08 16:58:13,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 16:58:13,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 16:58:13,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 16:58:13,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 16:58:13,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-08 16:58:13,145 INFO L87 Difference]: Start difference. First operand 158 states and 218 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7)
[2024-11-08 16:58:13,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:58:13,227 INFO L93 Difference]: Finished difference Result 178 states and 244 transitions.
[2024-11-08 16:58:13,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-08 16:58:13,228 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7) Word has length 70
[2024-11-08 16:58:13,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:58:13,232 INFO L225 Difference]: With dead ends: 178
[2024-11-08 16:58:13,234 INFO L226 Difference]: Without dead ends: 176
[2024-11-08 16:58:13,235 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2024-11-08 16:58:13,236 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 3 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 16:58:13,236 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 412 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 16:58:13,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states.
[2024-11-08 16:58:13,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 174.
[2024-11-08 16:58:13,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 129 states have (on average 1.3410852713178294) internal successors, (173), 136 states have internal predecessors, (173), 28 states have call successors, (28), 11 states have call predecessors, (28), 16 states have return successors, (38), 26 states have call predecessors, (38), 26 states have call successors, (38)
[2024-11-08 16:58:13,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 239 transitions.
[2024-11-08 16:58:13,276 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 239 transitions. Word has length 70
[2024-11-08 16:58:13,276 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:58:13,276 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 239 transitions.
[2024-11-08 16:58:13,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 1 states have call successors, (7)
[2024-11-08 16:58:13,277 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 239 transitions.
[2024-11-08 16:58:13,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73
[2024-11-08 16:58:13,279 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:58:13,280 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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]
[2024-11-08 16:58:13,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-11-08 16:58:13,280 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 16:58:13,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:58:13,281 INFO L85 PathProgramCache]: Analyzing trace with hash 794812552, now seen corresponding path program 1 times
[2024-11-08 16:58:13,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:58:13,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743003673]
[2024-11-08 16:58:13,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:58:13,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:58:13,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:13,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 16:58:13,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:13,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7
[2024-11-08 16:58:13,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:13,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2024-11-08 16:58:13,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:13,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30
[2024-11-08 16:58:13,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:13,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36
[2024-11-08 16:58:13,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:13,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48
[2024-11-08 16:58:13,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:13,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54
[2024-11-08 16:58:13,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:14,103 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 12 proven. 18 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked.
[2024-11-08 16:58:14,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:58:14,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743003673]
[2024-11-08 16:58:14,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743003673] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 16:58:14,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1998468753]
[2024-11-08 16:58:14,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:58:14,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:58:14,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 16:58:14,106 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 16:58:14,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2024-11-08 16:58:14,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:14,429 INFO L255 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-11-08 16:58:14,432 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 16:58:14,634 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked.
[2024-11-08 16:58:14,635 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 16:58:14,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1998468753] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 16:58:14,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-08 16:58:14,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17
[2024-11-08 16:58:14,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726494702]
[2024-11-08 16:58:14,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 16:58:14,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-08 16:58:14,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 16:58:14,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-08 16:58:14,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=236, Unknown=0, NotChecked=0, Total=272
[2024-11-08 16:58:14,638 INFO L87 Difference]: Start difference. First operand 174 states and 239 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7)
[2024-11-08 16:58:15,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:58:15,007 INFO L93 Difference]: Finished difference Result 349 states and 479 transitions.
[2024-11-08 16:58:15,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-11-08 16:58:15,008 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 72
[2024-11-08 16:58:15,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:58:15,010 INFO L225 Difference]: With dead ends: 349
[2024-11-08 16:58:15,011 INFO L226 Difference]: Without dead ends: 182
[2024-11-08 16:58:15,013 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462
[2024-11-08 16:58:15,013 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 99 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-08 16:58:15,014 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 323 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-08 16:58:15,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states.
[2024-11-08 16:58:15,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 174.
[2024-11-08 16:58:15,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 129 states have (on average 1.310077519379845) internal successors, (169), 136 states have internal predecessors, (169), 28 states have call successors, (28), 11 states have call predecessors, (28), 16 states have return successors, (38), 26 states have call predecessors, (38), 26 states have call successors, (38)
[2024-11-08 16:58:15,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 235 transitions.
[2024-11-08 16:58:15,065 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 235 transitions. Word has length 72
[2024-11-08 16:58:15,066 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:58:15,067 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 235 transitions.
[2024-11-08 16:58:15,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7)
[2024-11-08 16:58:15,068 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 235 transitions.
[2024-11-08 16:58:15,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75
[2024-11-08 16:58:15,069 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:58:15,070 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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]
[2024-11-08 16:58:15,098 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0
[2024-11-08 16:58:15,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9
[2024-11-08 16:58:15,271 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 16:58:15,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:58:15,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1809483396, now seen corresponding path program 1 times
[2024-11-08 16:58:15,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:58:15,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837005825]
[2024-11-08 16:58:15,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:58:15,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:58:15,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:15,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 16:58:15,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:15,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7
[2024-11-08 16:58:15,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:15,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2024-11-08 16:58:15,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:15,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30
[2024-11-08 16:58:15,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:15,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36
[2024-11-08 16:58:15,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:15,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48
[2024-11-08 16:58:15,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:15,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54
[2024-11-08 16:58:15,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:16,022 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 18 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked.
[2024-11-08 16:58:16,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:58:16,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837005825]
[2024-11-08 16:58:16,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837005825] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 16:58:16,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1474222855]
[2024-11-08 16:58:16,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:58:16,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:58:16,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 16:58:16,026 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 16:58:16,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2024-11-08 16:58:16,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:16,347 INFO L255 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-11-08 16:58:16,351 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 16:58:16,567 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked.
[2024-11-08 16:58:16,567 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 16:58:16,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1474222855] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 16:58:16,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-08 16:58:16,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 16
[2024-11-08 16:58:16,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780265638]
[2024-11-08 16:58:16,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 16:58:16,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-08 16:58:16,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 16:58:16,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-08 16:58:16,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240
[2024-11-08 16:58:16,570 INFO L87 Difference]: Start difference. First operand 174 states and 235 transitions. Second operand has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7)
[2024-11-08 16:58:17,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:58:17,012 INFO L93 Difference]: Finished difference Result 377 states and 519 transitions.
[2024-11-08 16:58:17,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2024-11-08 16:58:17,013 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 74
[2024-11-08 16:58:17,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:58:17,015 INFO L225 Difference]: With dead ends: 377
[2024-11-08 16:58:17,015 INFO L226 Difference]: Without dead ends: 206
[2024-11-08 16:58:17,017 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=71, Invalid=435, Unknown=0, NotChecked=0, Total=506
[2024-11-08 16:58:17,018 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 118 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-08 16:58:17,018 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 351 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-08 16:58:17,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states.
[2024-11-08 16:58:17,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 182.
[2024-11-08 16:58:17,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 137 states have (on average 1.2919708029197081) internal successors, (177), 144 states have internal predecessors, (177), 28 states have call successors, (28), 11 states have call predecessors, (28), 16 states have return successors, (38), 26 states have call predecessors, (38), 26 states have call successors, (38)
[2024-11-08 16:58:17,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 243 transitions.
[2024-11-08 16:58:17,054 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 243 transitions. Word has length 74
[2024-11-08 16:58:17,055 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:58:17,055 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 243 transitions.
[2024-11-08 16:58:17,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 3 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7)
[2024-11-08 16:58:17,055 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 243 transitions.
[2024-11-08 16:58:17,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77
[2024-11-08 16:58:17,058 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:58:17,059 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 16:58:17,088 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0
[2024-11-08 16:58:17,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10
[2024-11-08 16:58:17,264 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 16:58:17,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:58:17,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1179504236, now seen corresponding path program 1 times
[2024-11-08 16:58:17,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:58:17,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192756466]
[2024-11-08 16:58:17,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:58:17,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:58:17,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:17,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 16:58:17,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:17,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7
[2024-11-08 16:58:17,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:17,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2024-11-08 16:58:17,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:17,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30
[2024-11-08 16:58:17,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:17,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36
[2024-11-08 16:58:17,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:17,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48
[2024-11-08 16:58:17,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:17,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54
[2024-11-08 16:58:17,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:17,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66
[2024-11-08 16:58:17,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:17,770 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked.
[2024-11-08 16:58:17,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:58:17,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192756466]
[2024-11-08 16:58:17,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192756466] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 16:58:17,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [533503236]
[2024-11-08 16:58:17,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:58:17,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:58:17,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 16:58:17,774 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 16:58:17,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process
[2024-11-08 16:58:18,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:18,127 INFO L255 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 50 conjuncts are in the unsatisfiable core
[2024-11-08 16:58:18,133 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 16:58:18,215 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 9
[2024-11-08 16:58:18,229 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19
[2024-11-08 16:58:18,374 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 16:58:18,376 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28
[2024-11-08 16:58:18,393 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 16:58:18,395 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 16:58:18,397 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 40
[2024-11-08 16:58:18,410 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 16:58:18,411 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 25 treesize of output 18
[2024-11-08 16:58:18,421 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 16:58:18,422 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 34 treesize of output 25
[2024-11-08 16:58:18,645 INFO L349 Elim1Store]: treesize reduction 50, result has 18.0 percent of original size
[2024-11-08 16:58:18,645 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 178 treesize of output 178
[2024-11-08 16:58:18,656 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 16:58:18,658 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 16:58:18,659 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 158 treesize of output 130
[2024-11-08 16:58:18,679 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 16:58:18,681 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 16:58:18,684 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 16:58:18,687 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 16:58:18,689 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 35
[2024-11-08 16:58:18,706 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 16:58:18,708 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 24
[2024-11-08 16:58:20,456 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 44 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2024-11-08 16:58:20,456 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 16:58:20,977 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset| 24)) (.cse2 (+ |c_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.offset| 16))) (and (forall ((|ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| Int) (v_ArrVal_885 Int)) (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| (store (select |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base|) |ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| v_ArrVal_885)))) (store .cse0 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select .cse0 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse1 |ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset|))) |c_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base|) .cse2) 0)) (forall ((v_ArrVal_882 Int) (v_ArrVal_884 (Array Int Int))) (= (select (select (let ((.cse3 (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| v_ArrVal_884))) (store .cse3 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select .cse3 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse1 v_ArrVal_882))) |c_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base|) .cse2) 0)))) is different from false
[2024-11-08 16:58:21,006 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 16:58:21,006 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 89 treesize of output 90
[2024-11-08 16:58:21,053 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset| 24)) (.cse2 (+ |c_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.offset| 16))) (and (forall ((|v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base_16| Int)) (or (forall ((v_ArrVal_882 Int) (v_ArrVal_884 (Array Int Int))) (= (select (select (let ((.cse0 (store (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| (store (select |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base|) |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base_16|)) |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base_16| v_ArrVal_884))) (store .cse0 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select .cse0 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse1 v_ArrVal_882))) |c_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base|) .cse2) 0)) (< |c_#StackHeapBarrier| (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base_16| 1)))) (forall ((|v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base_16| Int)) (or (forall ((v_arrayElimArr_9 (Array Int Int)) (v_subst_1 Int)) (= (select (select (let ((.cse3 (store (store |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| (store (select |c_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base|) |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| 0)) |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base_16| v_arrayElimArr_9))) (store .cse3 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select .cse3 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse1 v_subst_1))) |c_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base|) .cse2) 0)) (< |c_#StackHeapBarrier| (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base_16| 1)))))) is different from false
[2024-11-08 16:58:21,110 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-08 16:58:21,111 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-08 16:58:21,212 INFO L349 Elim1Store]: treesize reduction 86, result has 45.2 percent of original size
[2024-11-08 16:58:21,213 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 297 treesize of output 284
[2024-11-08 16:58:21,239 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-08 16:58:21,240 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-08 16:58:21,377 INFO L349 Elim1Store]: treesize reduction 86, result has 45.2 percent of original size
[2024-11-08 16:58:21,377 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 355 treesize of output 342
[2024-11-08 16:58:21,412 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 16:58:21,412 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 296 treesize of output 292
[2024-11-08 16:58:21,446 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 16:58:21,447 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 320 treesize of output 302
[2024-11-08 16:58:21,471 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 269 treesize of output 257
[2024-11-08 16:58:21,494 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 281 treesize of output 269
[2024-11-08 16:58:21,548 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 treesize of output 4
[2024-11-08 16:58:21,610 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 treesize of output 4
[2024-11-08 16:58:22,620 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-08 16:58:22,621 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-08 16:58:22,645 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 16:58:22,646 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 101 treesize of output 111
[2024-11-08 16:58:22,796 INFO L173 IndexEqualityManager]: detected equality via solver
[2024-11-08 16:58:22,811 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 16:58:22,811 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 55
[2024-11-08 16:58:22,973 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 12 proven. 10 refuted. 0 times theorem prover too weak. 25 trivial. 1 not checked.
[2024-11-08 16:58:22,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [533503236] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 16:58:22,973 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 16:58:22,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 11, 10] total 23
[2024-11-08 16:58:22,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997601601]
[2024-11-08 16:58:22,975 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 16:58:22,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states
[2024-11-08 16:58:22,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 16:58:22,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants.
[2024-11-08 16:58:22,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=362, Unknown=2, NotChecked=78, Total=506
[2024-11-08 16:58:22,978 INFO L87 Difference]: Start difference. First operand 182 states and 243 transitions. Second operand has 23 states, 20 states have (on average 5.2) internal successors, (104), 22 states have internal predecessors, (104), 9 states have call successors, (23), 3 states have call predecessors, (23), 7 states have return successors, (22), 7 states have call predecessors, (22), 9 states have call successors, (22)
[2024-11-08 16:58:25,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:58:25,400 INFO L93 Difference]: Finished difference Result 441 states and 601 transitions.
[2024-11-08 16:58:25,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states.
[2024-11-08 16:58:25,402 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 20 states have (on average 5.2) internal successors, (104), 22 states have internal predecessors, (104), 9 states have call successors, (23), 3 states have call predecessors, (23), 7 states have return successors, (22), 7 states have call predecessors, (22), 9 states have call successors, (22) Word has length 76
[2024-11-08 16:58:25,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:58:25,404 INFO L225 Difference]: With dead ends: 441
[2024-11-08 16:58:25,405 INFO L226 Difference]: Without dead ends: 279
[2024-11-08 16:58:25,408 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 151 SyntacticMatches, 5 SemanticMatches, 35 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=163, Invalid=1033, Unknown=2, NotChecked=134, Total=1332
[2024-11-08 16:58:25,408 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 111 mSDsluCounter, 982 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 1078 SdHoareTripleChecker+Invalid, 979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 339 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time
[2024-11-08 16:58:25,409 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 1078 Invalid, 979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 586 Invalid, 0 Unknown, 339 Unchecked, 1.4s Time]
[2024-11-08 16:58:25,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states.
[2024-11-08 16:58:25,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 268.
[2024-11-08 16:58:25,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 202 states have (on average 1.306930693069307) internal successors, (264), 213 states have internal predecessors, (264), 41 states have call successors, (41), 16 states have call predecessors, (41), 24 states have return successors, (53), 38 states have call predecessors, (53), 38 states have call successors, (53)
[2024-11-08 16:58:25,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 358 transitions.
[2024-11-08 16:58:25,466 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 358 transitions. Word has length 76
[2024-11-08 16:58:25,466 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:58:25,466 INFO L471 AbstractCegarLoop]: Abstraction has 268 states and 358 transitions.
[2024-11-08 16:58:25,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 20 states have (on average 5.2) internal successors, (104), 22 states have internal predecessors, (104), 9 states have call successors, (23), 3 states have call predecessors, (23), 7 states have return successors, (22), 7 states have call predecessors, (22), 9 states have call successors, (22)
[2024-11-08 16:58:25,467 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 358 transitions.
[2024-11-08 16:58:25,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83
[2024-11-08 16:58:25,470 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:58:25,470 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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]
[2024-11-08 16:58:25,498 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0
[2024-11-08 16:58:25,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:58:25,675 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 16:58:25,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:58:25,675 INFO L85 PathProgramCache]: Analyzing trace with hash 965592753, now seen corresponding path program 1 times
[2024-11-08 16:58:25,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:58:25,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058165774]
[2024-11-08 16:58:25,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:58:25,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:58:25,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:25,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 16:58:25,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:25,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7
[2024-11-08 16:58:25,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:25,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2024-11-08 16:58:25,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:25,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30
[2024-11-08 16:58:25,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:25,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36
[2024-11-08 16:58:25,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:26,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54
[2024-11-08 16:58:26,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:26,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60
[2024-11-08 16:58:26,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:26,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72
[2024-11-08 16:58:26,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:26,089 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked.
[2024-11-08 16:58:26,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:58:26,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058165774]
[2024-11-08 16:58:26,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058165774] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 16:58:26,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1017785450]
[2024-11-08 16:58:26,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:58:26,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:58:26,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 16:58:26,093 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 16:58:26,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process
[2024-11-08 16:58:26,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:26,447 INFO L255 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-08 16:58:26,449 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 16:58:26,469 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked.
[2024-11-08 16:58:26,470 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 16:58:26,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1017785450] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 16:58:26,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-08 16:58:26,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6
[2024-11-08 16:58:26,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314598055]
[2024-11-08 16:58:26,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 16:58:26,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 16:58:26,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 16:58:26,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 16:58:26,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-08 16:58:26,472 INFO L87 Difference]: Start difference. First operand 268 states and 358 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8)
[2024-11-08 16:58:26,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:58:26,544 INFO L93 Difference]: Finished difference Result 536 states and 740 transitions.
[2024-11-08 16:58:26,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-08 16:58:26,545 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 82
[2024-11-08 16:58:26,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:58:26,548 INFO L225 Difference]: With dead ends: 536
[2024-11-08 16:58:26,548 INFO L226 Difference]: Without dead ends: 292
[2024-11-08 16:58:26,550 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30
[2024-11-08 16:58:26,551 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 2 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 16:58:26,551 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 156 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 16:58:26,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states.
[2024-11-08 16:58:26,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 274.
[2024-11-08 16:58:26,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 208 states have (on average 1.2980769230769231) internal successors, (270), 219 states have internal predecessors, (270), 41 states have call successors, (41), 16 states have call predecessors, (41), 24 states have return successors, (53), 38 states have call predecessors, (53), 38 states have call successors, (53)
[2024-11-08 16:58:26,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 364 transitions.
[2024-11-08 16:58:26,596 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 364 transitions. Word has length 82
[2024-11-08 16:58:26,597 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:58:26,597 INFO L471 AbstractCegarLoop]: Abstraction has 274 states and 364 transitions.
[2024-11-08 16:58:26,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8)
[2024-11-08 16:58:26,597 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 364 transitions.
[2024-11-08 16:58:26,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91
[2024-11-08 16:58:26,600 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:58:26,600 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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]
[2024-11-08 16:58:26,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0
[2024-11-08 16:58:26,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12
[2024-11-08 16:58:26,801 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 16:58:26,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:58:26,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1758262317, now seen corresponding path program 1 times
[2024-11-08 16:58:26,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:58:26,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666412515]
[2024-11-08 16:58:26,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:58:26,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:58:26,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:27,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 16:58:27,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:27,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7
[2024-11-08 16:58:27,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:27,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2024-11-08 16:58:27,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:27,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30
[2024-11-08 16:58:27,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:27,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36
[2024-11-08 16:58:27,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:27,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13
[2024-11-08 16:58:27,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:27,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62
[2024-11-08 16:58:27,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:27,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68
[2024-11-08 16:58:27,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:27,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80
[2024-11-08 16:58:27,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:27,616 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked.
[2024-11-08 16:58:27,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:58:27,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666412515]
[2024-11-08 16:58:27,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666412515] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 16:58:27,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1347922836]
[2024-11-08 16:58:27,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:58:27,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:58:27,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 16:58:27,620 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 16:58:27,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process
[2024-11-08 16:58:27,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:58:27,991 INFO L255 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 78 conjuncts are in the unsatisfiable core
[2024-11-08 16:58:27,996 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 16:58:28,176 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 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 16 treesize of output 16
[2024-11-08 16:58:28,182 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 16:58:28,182 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11
[2024-11-08 16:58:28,276 INFO L349 Elim1Store]: treesize reduction 38, result has 22.4 percent of original size
[2024-11-08 16:58:28,276 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 78 treesize of output 86
[2024-11-08 16:58:28,289 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 76 treesize of output 58
[2024-11-08 16:58:32,396 WARN L873 $PredicateComparison]: unable to prove that (exists ((v_DerPreprocessor_5 (Array Int Int)) (|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_44| Int)) (let ((.cse1 (select |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_44|))) (let ((.cse0 (select .cse1 24))) (and (<= (+ 2 .cse0) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_44|) (= (select .cse1 0) .cse0) (not (= .cse0 0)) (let ((.cse2 (select |c_#memory_$Pointer$#1.base| .cse0))) (= .cse2 (select (store (store |c_#memory_$Pointer$#1.base| .cse0 v_DerPreprocessor_5) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_44| (store .cse2 24 .cse0)) .cse0))))))) is different from true
[2024-11-08 16:58:32,770 WARN L873 $PredicateComparison]: unable to prove that (and (exists ((v_DerPreprocessor_5 (Array Int Int)) (|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_44| Int)) (let ((.cse1 (select |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_44|))) (let ((.cse0 (select .cse1 24))) (and (<= (+ 2 .cse0) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_44|) (= (select .cse1 0) .cse0) (not (= .cse0 0)) (let ((.cse2 (select |c_#memory_$Pointer$#1.base| .cse0))) (= .cse2 (select (store (store |c_#memory_$Pointer$#1.base| .cse0 v_DerPreprocessor_5) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_44| (store .cse2 24 .cse0)) .cse0))))))) (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_45| Int) (v_DerPreprocessor_7 (Array Int Int))) (let ((.cse4 (select |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_45|))) (let ((.cse3 (select .cse4 24))) (and (not (= .cse3 0)) (= .cse3 (select .cse4 0)) (let ((.cse5 (select |c_#memory_$Pointer$#1.base| .cse3))) (= .cse5 (select (store (store |c_#memory_$Pointer$#1.base| .cse3 v_DerPreprocessor_7) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_45| (store .cse5 24 .cse3)) .cse3))) (<= (+ 2 .cse3) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_45|)))))) is different from true
[2024-11-08 16:58:37,518 WARN L873 $PredicateComparison]: unable to prove that (and (exists ((v_DerPreprocessor_5 (Array Int Int)) (|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_44| Int)) (let ((.cse1 (select |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_44|))) (let ((.cse0 (select .cse1 24))) (and (<= (+ 2 .cse0) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_44|) (= (select .cse1 0) .cse0) (not (= .cse0 0)) (let ((.cse2 (select |c_#memory_$Pointer$#1.base| .cse0))) (= .cse2 (select (store (store |c_#memory_$Pointer$#1.base| .cse0 v_DerPreprocessor_5) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_44| (store .cse2 24 .cse0)) .cse0))))))) (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_45| Int) (v_DerPreprocessor_7 (Array Int Int))) (let ((.cse4 (select |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_45|))) (let ((.cse3 (select .cse4 24))) (and (not (= .cse3 0)) (= .cse3 (select .cse4 0)) (let ((.cse5 (select |c_#memory_$Pointer$#1.base| .cse3))) (= .cse5 (select (store (store |c_#memory_$Pointer$#1.base| .cse3 v_DerPreprocessor_7) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_45| (store .cse5 24 .cse3)) .cse3))) (<= (+ 2 .cse3) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_45|))))) (exists ((v_DerPreprocessor_8 (Array Int Int)) (|v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_19| Int)) (let ((.cse8 (select |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_19|))) (let ((.cse6 (select .cse8 24))) (and (let ((.cse7 (select |c_#memory_$Pointer$#1.base| .cse6))) (= (select (store (store |c_#memory_$Pointer$#1.base| .cse6 v_DerPreprocessor_8) |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_19| (store .cse7 24 .cse6)) .cse6) .cse7)) (= .cse6 (select .cse8 0)) (not (= .cse6 0)) (<= (+ .cse6 2) |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_19|)))))) is different from true
[2024-11-08 16:58:43,915 WARN L873 $PredicateComparison]: unable to prove that (and (exists ((v_DerPreprocessor_5 (Array Int Int)) (|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_44| Int)) (let ((.cse1 (select |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_44|))) (let ((.cse0 (select .cse1 24))) (and (<= (+ 2 .cse0) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_44|) (= (select .cse1 0) .cse0) (not (= .cse0 0)) (let ((.cse2 (select |c_#memory_$Pointer$#1.base| .cse0))) (= .cse2 (select (store (store |c_#memory_$Pointer$#1.base| .cse0 v_DerPreprocessor_5) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_44| (store .cse2 24 .cse0)) .cse0))))))) (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_45| Int) (v_DerPreprocessor_7 (Array Int Int))) (let ((.cse4 (select |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_45|))) (let ((.cse3 (select .cse4 24))) (and (not (= .cse3 0)) (= .cse3 (select .cse4 0)) (let ((.cse5 (select |c_#memory_$Pointer$#1.base| .cse3))) (= .cse5 (select (store (store |c_#memory_$Pointer$#1.base| .cse3 v_DerPreprocessor_7) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_45| (store .cse5 24 .cse3)) .cse3))) (<= (+ 2 .cse3) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_45|))))) (exists ((v_DerPreprocessor_8 (Array Int Int)) (|v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_19| Int)) (let ((.cse8 (select |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_19|))) (let ((.cse6 (select .cse8 24))) (and (let ((.cse7 (select |c_#memory_$Pointer$#1.base| .cse6))) (= (select (store (store |c_#memory_$Pointer$#1.base| .cse6 v_DerPreprocessor_8) |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_19| (store .cse7 24 .cse6)) .cse6) .cse7)) (= .cse6 (select .cse8 0)) (not (= .cse6 0)) (<= (+ .cse6 2) |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_19|))))) (exists ((|v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_20| Int) (v_DerPreprocessor_9 (Array Int Int))) (let ((.cse9 (select |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_20|))) (let ((.cse10 (select .cse9 24))) (and (= (select .cse9 0) .cse10) (not (= .cse10 0)) (<= (+ 2 .cse10) |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_20|) (let ((.cse11 (select |c_#memory_$Pointer$#1.base| .cse10))) (= .cse11 (select (store (store |c_#memory_$Pointer$#1.base| .cse10 v_DerPreprocessor_9) |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_20| (store .cse11 24 .cse10)) .cse10)))))))) is different from true
[2024-11-08 16:58:48,759 WARN L873 $PredicateComparison]: unable to prove that (and (exists ((v_DerPreprocessor_5 (Array Int Int)) (|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_44| Int)) (let ((.cse1 (select |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_44|))) (let ((.cse0 (select .cse1 24))) (and (<= (+ 2 .cse0) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_44|) (= (select .cse1 0) .cse0) (not (= .cse0 0)) (let ((.cse2 (select |c_#memory_$Pointer$#1.base| .cse0))) (= .cse2 (select (store (store |c_#memory_$Pointer$#1.base| .cse0 v_DerPreprocessor_5) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_44| (store .cse2 24 .cse0)) .cse0))))))) (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_45| Int) (v_DerPreprocessor_7 (Array Int Int))) (let ((.cse4 (select |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_45|))) (let ((.cse3 (select .cse4 24))) (and (not (= .cse3 0)) (= .cse3 (select .cse4 0)) (let ((.cse5 (select |c_#memory_$Pointer$#1.base| .cse3))) (= .cse5 (select (store (store |c_#memory_$Pointer$#1.base| .cse3 v_DerPreprocessor_7) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_45| (store .cse5 24 .cse3)) .cse3))) (<= (+ 2 .cse3) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_45|))))) (exists ((v_DerPreprocessor_8 (Array Int Int)) (|v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_19| Int)) (let ((.cse8 (select |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_19|))) (let ((.cse6 (select .cse8 24))) (and (let ((.cse7 (select |c_#memory_$Pointer$#1.base| .cse6))) (= (select (store (store |c_#memory_$Pointer$#1.base| .cse6 v_DerPreprocessor_8) |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_19| (store .cse7 24 .cse6)) .cse6) .cse7)) (= .cse6 (select .cse8 0)) (not (= .cse6 0)) (<= (+ .cse6 2) |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_19|))))) (exists ((|v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_21| Int) (v_DerPreprocessor_9 (Array Int Int))) (let ((.cse11 (select |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_21|))) (let ((.cse9 (select .cse11 24))) (and (not (= 0 .cse9)) (let ((.cse10 (select |c_#memory_$Pointer$#1.base| .cse9))) (= (select (store (store |c_#memory_$Pointer$#1.base| .cse9 v_DerPreprocessor_9) |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_21| (store .cse10 24 .cse9)) .cse9) .cse10)) (= (select .cse11 0) .cse9) (<= (+ 2 .cse9) |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_21|))))) (exists ((v_DerPreprocessor_10 (Array Int Int)) (|v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_20| Int)) (let ((.cse12 (select |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_20|))) (let ((.cse13 (select .cse12 24))) (and (= (select .cse12 0) .cse13) (let ((.cse14 (select |c_#memory_$Pointer$#1.base| .cse13))) (= .cse14 (select (store (store |c_#memory_$Pointer$#1.base| .cse13 v_DerPreprocessor_10) |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_20| (store .cse14 24 .cse13)) .cse13))) (not (= .cse13 0)) (<= (+ 2 .cse13) |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_20|)))))) is different from true
[2024-11-08 16:58:50,854 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 29 not checked.
[2024-11-08 16:58:50,854 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 16:58:51,796 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 16:58:51,796 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 35
[2024-11-08 16:58:51,824 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 16:58:51,825 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 219 treesize of output 211
[2024-11-08 16:58:51,834 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 192 treesize of output 176
[2024-11-08 16:58:52,026 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 treesize of output 4
[2024-11-08 16:58:52,041 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 24 treesize of output 20
[2024-11-08 16:58:52,136 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 16:58:52,137 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 106 treesize of output 90
[2024-11-08 16:58:52,603 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked.
[2024-11-08 16:58:52,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1347922836] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 16:58:52,603 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 16:58:52,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 24, 11] total 38
[2024-11-08 16:58:52,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398514352]
[2024-11-08 16:58:52,604 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 16:58:52,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states
[2024-11-08 16:58:52,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 16:58:52,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants.
[2024-11-08 16:58:52,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=956, Unknown=18, NotChecked=330, Total=1406
[2024-11-08 16:58:52,606 INFO L87 Difference]: Start difference. First operand 274 states and 364 transitions. Second operand has 38 states, 34 states have (on average 3.911764705882353) internal successors, (133), 33 states have internal predecessors, (133), 13 states have call successors, (26), 7 states have call predecessors, (26), 10 states have return successors, (25), 12 states have call predecessors, (25), 13 states have call successors, (25)
[2024-11-08 16:58:58,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 16:59:02,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 16:59:10,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 16:59:15,984 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 16:59:20,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 16:59:22,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 16:59:22,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:59:22,829 INFO L93 Difference]: Finished difference Result 632 states and 865 transitions.
[2024-11-08 16:59:22,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states.
[2024-11-08 16:59:22,830 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 34 states have (on average 3.911764705882353) internal successors, (133), 33 states have internal predecessors, (133), 13 states have call successors, (26), 7 states have call predecessors, (26), 10 states have return successors, (25), 12 states have call predecessors, (25), 13 states have call successors, (25) Word has length 90
[2024-11-08 16:59:22,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:59:22,833 INFO L225 Difference]: With dead ends: 632
[2024-11-08 16:59:22,833 INFO L226 Difference]: Without dead ends: 308
[2024-11-08 16:59:22,836 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 22.4s TimeCoverageRelationStatistics Valid=214, Invalid=2034, Unknown=28, NotChecked=480, Total=2756
[2024-11-08 16:59:22,837 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 94 mSDsluCounter, 1490 mSDsCounter, 0 mSdLazyCounter, 1014 mSolverCounterSat, 30 mSolverCounterUnsat, 51 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 1579 SdHoareTripleChecker+Invalid, 2039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1014 IncrementalHoareTripleChecker+Invalid, 51 IncrementalHoareTripleChecker+Unknown, 944 IncrementalHoareTripleChecker+Unchecked, 27.6s IncrementalHoareTripleChecker+Time
[2024-11-08 16:59:22,837 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 1579 Invalid, 2039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1014 Invalid, 51 Unknown, 944 Unchecked, 27.6s Time]
[2024-11-08 16:59:22,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states.
[2024-11-08 16:59:22,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 300.
[2024-11-08 16:59:22,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 228 states have (on average 1.2719298245614035) internal successors, (290), 245 states have internal predecessors, (290), 41 states have call successors, (41), 16 states have call predecessors, (41), 30 states have return successors, (65), 38 states have call predecessors, (65), 38 states have call successors, (65)
[2024-11-08 16:59:22,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 396 transitions.
[2024-11-08 16:59:22,895 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 396 transitions. Word has length 90
[2024-11-08 16:59:22,895 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:59:22,895 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 396 transitions.
[2024-11-08 16:59:22,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 34 states have (on average 3.911764705882353) internal successors, (133), 33 states have internal predecessors, (133), 13 states have call successors, (26), 7 states have call predecessors, (26), 10 states have return successors, (25), 12 states have call predecessors, (25), 13 states have call successors, (25)
[2024-11-08 16:59:22,896 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 396 transitions.
[2024-11-08 16:59:22,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93
[2024-11-08 16:59:22,898 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:59:22,898 INFO L215 NwaCegarLoop]: trace histogram [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]
[2024-11-08 16:59:22,924 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0
[2024-11-08 16:59:23,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13
[2024-11-08 16:59:23,099 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 16:59:23,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:59:23,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1804590325, now seen corresponding path program 1 times
[2024-11-08 16:59:23,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:59:23,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075289572]
[2024-11-08 16:59:23,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:59:23,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:59:23,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:59:23,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 16:59:23,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:59:23,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7
[2024-11-08 16:59:23,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:59:23,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2024-11-08 16:59:23,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:59:23,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30
[2024-11-08 16:59:23,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:59:23,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36
[2024-11-08 16:59:23,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:59:23,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13
[2024-11-08 16:59:23,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:59:24,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64
[2024-11-08 16:59:24,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:59:24,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70
[2024-11-08 16:59:24,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:59:24,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82
[2024-11-08 16:59:24,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:59:24,122 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked.
[2024-11-08 16:59:24,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:59:24,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075289572]
[2024-11-08 16:59:24,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075289572] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 16:59:24,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [144373079]
[2024-11-08 16:59:24,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:59:24,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:59:24,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 16:59:24,127 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 16:59:24,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process
[2024-11-08 16:59:24,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:59:24,540 INFO L255 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 59 conjuncts are in the unsatisfiable core
[2024-11-08 16:59:24,545 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 16:59:24,628 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1
[2024-11-08 16:59:24,633 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1
[2024-11-08 16:59:25,569 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 31 proven. 10 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked.
[2024-11-08 16:59:25,569 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 16:59:26,319 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 22 proven. 11 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked.
[2024-11-08 16:59:26,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [144373079] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 16:59:26,319 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-11-08 16:59:26,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 16, 12] total 31
[2024-11-08 16:59:26,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742812797]
[2024-11-08 16:59:26,320 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-11-08 16:59:26,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states
[2024-11-08 16:59:26,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 16:59:26,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants.
[2024-11-08 16:59:26,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=840, Unknown=0, NotChecked=0, Total=930
[2024-11-08 16:59:26,322 INFO L87 Difference]: Start difference. First operand 300 states and 396 transitions. Second operand has 31 states, 30 states have (on average 4.2) internal successors, (126), 30 states have internal predecessors, (126), 9 states have call successors, (22), 3 states have call predecessors, (22), 7 states have return successors, (22), 9 states have call predecessors, (22), 9 states have call successors, (22)
[2024-11-08 16:59:30,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:59:30,290 INFO L93 Difference]: Finished difference Result 1412 states and 2000 transitions.
[2024-11-08 16:59:30,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states.
[2024-11-08 16:59:30,291 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 4.2) internal successors, (126), 30 states have internal predecessors, (126), 9 states have call successors, (22), 3 states have call predecessors, (22), 7 states have return successors, (22), 9 states have call predecessors, (22), 9 states have call successors, (22) Word has length 92
[2024-11-08 16:59:30,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:59:30,299 INFO L225 Difference]: With dead ends: 1412
[2024-11-08 16:59:30,299 INFO L226 Difference]: Without dead ends: 1075
[2024-11-08 16:59:30,303 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 204 SyntacticMatches, 2 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1184 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=596, Invalid=5104, Unknown=0, NotChecked=0, Total=5700
[2024-11-08 16:59:30,304 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 449 mSDsluCounter, 1438 mSDsCounter, 0 mSdLazyCounter, 1743 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 1543 SdHoareTripleChecker+Invalid, 1909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 1743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time
[2024-11-08 16:59:30,305 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 1543 Invalid, 1909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 1743 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time]
[2024-11-08 16:59:30,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1075 states.
[2024-11-08 16:59:30,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1075 to 885.
[2024-11-08 16:59:30,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 885 states, 697 states have (on average 1.2510760401721663) internal successors, (872), 746 states have internal predecessors, (872), 101 states have call successors, (101), 40 states have call predecessors, (101), 86 states have return successors, (210), 98 states have call predecessors, (210), 95 states have call successors, (210)
[2024-11-08 16:59:30,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 885 states to 885 states and 1183 transitions.
[2024-11-08 16:59:30,435 INFO L78 Accepts]: Start accepts. Automaton has 885 states and 1183 transitions. Word has length 92
[2024-11-08 16:59:30,436 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:59:30,436 INFO L471 AbstractCegarLoop]: Abstraction has 885 states and 1183 transitions.
[2024-11-08 16:59:30,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 4.2) internal successors, (126), 30 states have internal predecessors, (126), 9 states have call successors, (22), 3 states have call predecessors, (22), 7 states have return successors, (22), 9 states have call predecessors, (22), 9 states have call successors, (22)
[2024-11-08 16:59:30,436 INFO L276 IsEmpty]: Start isEmpty. Operand 885 states and 1183 transitions.
[2024-11-08 16:59:30,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93
[2024-11-08 16:59:30,440 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:59:30,440 INFO L215 NwaCegarLoop]: trace histogram [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]
[2024-11-08 16:59:30,462 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0
[2024-11-08 16:59:30,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14
[2024-11-08 16:59:30,641 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 16:59:30,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:59:30,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1005212997, now seen corresponding path program 1 times
[2024-11-08 16:59:30,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:59:30,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059335090]
[2024-11-08 16:59:30,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:59:30,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:59:30,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:59:30,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 16:59:30,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:59:30,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7
[2024-11-08 16:59:30,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:59:30,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2024-11-08 16:59:30,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:59:30,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30
[2024-11-08 16:59:30,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:59:30,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36
[2024-11-08 16:59:30,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:59:30,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13
[2024-11-08 16:59:30,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:59:30,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64
[2024-11-08 16:59:30,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:59:30,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70
[2024-11-08 16:59:30,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:59:30,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82
[2024-11-08 16:59:30,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:59:30,855 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked.
[2024-11-08 16:59:30,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:59:30,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059335090]
[2024-11-08 16:59:30,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059335090] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 16:59:30,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264468182]
[2024-11-08 16:59:30,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:59:30,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:59:30,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 16:59:30,858 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 16:59:30,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process
[2024-11-08 16:59:31,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:59:31,176 INFO L255 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-08 16:59:31,178 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 16:59:31,185 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked.
[2024-11-08 16:59:31,185 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 16:59:31,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1264468182] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 16:59:31,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-08 16:59:31,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4
[2024-11-08 16:59:31,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235012801]
[2024-11-08 16:59:31,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 16:59:31,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 16:59:31,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 16:59:31,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 16:59:31,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 16:59:31,187 INFO L87 Difference]: Start difference. First operand 885 states and 1183 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9)
[2024-11-08 16:59:31,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:59:31,332 INFO L93 Difference]: Finished difference Result 1719 states and 2369 transitions.
[2024-11-08 16:59:31,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-08 16:59:31,333 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 92
[2024-11-08 16:59:31,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:59:31,340 INFO L225 Difference]: With dead ends: 1719
[2024-11-08 16:59:31,341 INFO L226 Difference]: Without dead ends: 861
[2024-11-08 16:59:31,346 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 16:59:31,347 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 1 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 16:59:31,347 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 238 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 16:59:31,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states.
[2024-11-08 16:59:31,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 861.
[2024-11-08 16:59:31,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 861 states, 673 states have (on average 1.2421991084695394) internal successors, (836), 722 states have internal predecessors, (836), 101 states have call successors, (101), 40 states have call predecessors, (101), 86 states have return successors, (210), 98 states have call predecessors, (210), 95 states have call successors, (210)
[2024-11-08 16:59:31,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1147 transitions.
[2024-11-08 16:59:31,496 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1147 transitions. Word has length 92
[2024-11-08 16:59:31,496 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:59:31,496 INFO L471 AbstractCegarLoop]: Abstraction has 861 states and 1147 transitions.
[2024-11-08 16:59:31,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9)
[2024-11-08 16:59:31,497 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1147 transitions.
[2024-11-08 16:59:31,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93
[2024-11-08 16:59:31,500 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:59:31,500 INFO L215 NwaCegarLoop]: trace histogram [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]
[2024-11-08 16:59:31,522 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0
[2024-11-08 16:59:31,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15
[2024-11-08 16:59:31,701 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 16:59:31,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:59:31,702 INFO L85 PathProgramCache]: Analyzing trace with hash 524132739, now seen corresponding path program 1 times
[2024-11-08 16:59:31,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:59:31,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590891245]
[2024-11-08 16:59:31,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:59:31,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:59:31,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:59:31,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 16:59:31,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:59:31,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7
[2024-11-08 16:59:31,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:59:31,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2024-11-08 16:59:31,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:59:31,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30
[2024-11-08 16:59:31,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:59:31,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36
[2024-11-08 16:59:31,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:59:31,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13
[2024-11-08 16:59:31,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:59:31,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64
[2024-11-08 16:59:31,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:59:31,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70
[2024-11-08 16:59:31,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:59:31,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82
[2024-11-08 16:59:31,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:59:31,875 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked.
[2024-11-08 16:59:31,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:59:31,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590891245]
[2024-11-08 16:59:31,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590891245] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 16:59:31,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [190257822]
[2024-11-08 16:59:31,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:59:31,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:59:31,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 16:59:31,878 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 16:59:31,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process
[2024-11-08 16:59:32,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:59:32,186 INFO L255 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-08 16:59:32,188 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 16:59:32,194 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked.
[2024-11-08 16:59:32,194 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 16:59:32,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [190257822] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 16:59:32,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-08 16:59:32,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4
[2024-11-08 16:59:32,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750962227]
[2024-11-08 16:59:32,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 16:59:32,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 16:59:32,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 16:59:32,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 16:59:32,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 16:59:32,196 INFO L87 Difference]: Start difference. First operand 861 states and 1147 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9)
[2024-11-08 16:59:32,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 16:59:32,268 INFO L93 Difference]: Finished difference Result 1204 states and 1633 transitions.
[2024-11-08 16:59:32,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-08 16:59:32,269 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 92
[2024-11-08 16:59:32,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 16:59:32,272 INFO L225 Difference]: With dead ends: 1204
[2024-11-08 16:59:32,273 INFO L226 Difference]: Without dead ends: 370
[2024-11-08 16:59:32,277 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 16:59:32,278 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 1 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 16:59:32,278 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 238 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 16:59:32,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states.
[2024-11-08 16:59:32,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 358.
[2024-11-08 16:59:32,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 274 states have (on average 1.2153284671532847) internal successors, (333), 294 states have internal predecessors, (333), 47 states have call successors, (47), 19 states have call predecessors, (47), 36 states have return successors, (83), 44 states have call predecessors, (83), 44 states have call successors, (83)
[2024-11-08 16:59:32,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 463 transitions.
[2024-11-08 16:59:32,334 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 463 transitions. Word has length 92
[2024-11-08 16:59:32,334 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 16:59:32,334 INFO L471 AbstractCegarLoop]: Abstraction has 358 states and 463 transitions.
[2024-11-08 16:59:32,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9)
[2024-11-08 16:59:32,335 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 463 transitions.
[2024-11-08 16:59:32,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95
[2024-11-08 16:59:32,337 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 16:59:32,337 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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]
[2024-11-08 16:59:32,359 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0
[2024-11-08 16:59:32,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16
[2024-11-08 16:59:32,538 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 16:59:32,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 16:59:32,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1073591708, now seen corresponding path program 1 times
[2024-11-08 16:59:32,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 16:59:32,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708324797]
[2024-11-08 16:59:32,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:59:32,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 16:59:32,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:59:33,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 16:59:33,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:59:33,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7
[2024-11-08 16:59:33,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:59:33,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2024-11-08 16:59:33,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:59:33,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30
[2024-11-08 16:59:33,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:59:33,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36
[2024-11-08 16:59:33,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:59:33,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13
[2024-11-08 16:59:33,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:59:33,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66
[2024-11-08 16:59:33,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:59:33,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72
[2024-11-08 16:59:33,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:59:33,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2024-11-08 16:59:33,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:59:33,714 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 12 proven. 14 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked.
[2024-11-08 16:59:33,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 16:59:33,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708324797]
[2024-11-08 16:59:33,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708324797] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 16:59:33,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [100122817]
[2024-11-08 16:59:33,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 16:59:33,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 16:59:33,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 16:59:33,717 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 16:59:33,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process
[2024-11-08 16:59:34,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 16:59:34,050 INFO L255 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 92 conjuncts are in the unsatisfiable core
[2024-11-08 16:59:34,054 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 16:59:34,178 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 16:59:34,181 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 16:59:34,182 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 18 treesize of output 18
[2024-11-08 16:59:34,184 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 1
[2024-11-08 16:59:34,189 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 16:59:34,190 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1
[2024-11-08 16:59:38,226 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_54| Int)) (<= (+ (select (select |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_54|) 24) 2) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_54|)) is different from true
[2024-11-08 16:59:42,297 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_55| Int)) (<= (+ (select (select |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_55|) 24) 2) |v_ULTIMATE.start_aws_linked_list_begin_harness_~#list~0#1.base_BEFORE_CALL_55|)) is different from true
[2024-11-08 16:59:46,381 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_31| Int)) (<= (+ 2 (select (select |c_#memory_$Pointer$#1.base| |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_31|) 24)) |v_ULTIMATE.start_aws_linked_list_begin_~list#1.base_BEFORE_CALL_31|)) is different from true
[2024-11-08 17:00:31,552 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 34 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 11 not checked.
[2024-11-08 17:00:31,552 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:00:40,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [100122817] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:00:40,531 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-08 17:00:40,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 18] total 29
[2024-11-08 17:00:40,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637016649]
[2024-11-08 17:00:40,532 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-08 17:00:40,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states
[2024-11-08 17:00:40,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-08 17:00:40,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants.
[2024-11-08 17:00:40,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=846, Unknown=13, NotChecked=180, Total=1122
[2024-11-08 17:00:40,533 INFO L87 Difference]: Start difference. First operand 358 states and 463 transitions. Second operand has 29 states, 27 states have (on average 4.518518518518518) internal successors, (122), 27 states have internal predecessors, (122), 9 states have call successors, (19), 5 states have call predecessors, (19), 7 states have return successors, (18), 7 states have call predecessors, (18), 9 states have call successors, (18)
[2024-11-08 17:00:48,595 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]
[2024-11-08 17:00:56,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:01:00,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:01:04,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:01:12,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:01:17,028 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:01:21,036 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:01:25,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:01:29,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:01:33,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:01:37,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:01:45,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:01:53,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:01:57,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:02:01,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:02:05,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:02:09,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:02:13,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:02:17,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:02:21,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:02:25,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:02:29,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:02:33,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:02:37,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:02:41,597 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:02:45,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:03:01,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:03:05,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:03:09,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:03:13,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:03:17,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:03:21,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:03:25,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:03:29,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:03:33,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:03:38,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:03:42,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:03:46,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:03:50,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:03:54,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:03:58,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:04:02,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:04:06,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:04:10,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:04:14,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:04:26,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:04:30,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:04:34,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:04:39,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:04:43,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:04:47,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:04:51,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:04:55,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:04:59,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:05:03,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:05:07,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:05:11,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:05:15,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:05:19,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:05:23,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:05:27,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:05:27,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:05:27,761 INFO L93 Difference]: Finished difference Result 878 states and 1152 transitions.
[2024-11-08 17:05:27,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states.
[2024-11-08 17:05:27,762 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 27 states have (on average 4.518518518518518) internal successors, (122), 27 states have internal predecessors, (122), 9 states have call successors, (19), 5 states have call predecessors, (19), 7 states have return successors, (18), 7 states have call predecessors, (18), 9 states have call successors, (18) Word has length 94
[2024-11-08 17:05:27,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:05:27,772 INFO L225 Difference]: With dead ends: 878
[2024-11-08 17:05:27,772 INFO L226 Difference]: Without dead ends: 598
[2024-11-08 17:05:27,774 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 119 SyntacticMatches, 4 SemanticMatches, 41 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 106.1s TimeCoverageRelationStatistics Valid=133, Invalid=1418, Unknown=21, NotChecked=234, Total=1806
[2024-11-08 17:05:27,775 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 90 mSDsluCounter, 1396 mSDsCounter, 0 mSdLazyCounter, 1251 mSolverCounterSat, 43 mSolverCounterUnsat, 61 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 246.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 1503 SdHoareTripleChecker+Invalid, 2125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1251 IncrementalHoareTripleChecker+Invalid, 61 IncrementalHoareTripleChecker+Unknown, 770 IncrementalHoareTripleChecker+Unchecked, 246.6s IncrementalHoareTripleChecker+Time
[2024-11-08 17:05:27,775 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 1503 Invalid, 2125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1251 Invalid, 61 Unknown, 770 Unchecked, 246.6s Time]
[2024-11-08 17:05:27,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states.
[2024-11-08 17:05:27,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 484.
[2024-11-08 17:05:27,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 388 states have (on average 1.2010309278350515) internal successors, (466), 404 states have internal predecessors, (466), 53 states have call successors, (53), 25 states have call predecessors, (53), 42 states have return successors, (91), 54 states have call predecessors, (91), 50 states have call successors, (91)
[2024-11-08 17:05:27,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 610 transitions.
[2024-11-08 17:05:27,858 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 610 transitions. Word has length 94
[2024-11-08 17:05:27,859 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:05:27,859 INFO L471 AbstractCegarLoop]: Abstraction has 484 states and 610 transitions.
[2024-11-08 17:05:27,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 27 states have (on average 4.518518518518518) internal successors, (122), 27 states have internal predecessors, (122), 9 states have call successors, (19), 5 states have call predecessors, (19), 7 states have return successors, (18), 7 states have call predecessors, (18), 9 states have call successors, (18)
[2024-11-08 17:05:27,860 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 610 transitions.
[2024-11-08 17:05:27,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105
[2024-11-08 17:05:27,862 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:05:27,863 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:05:27,887 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0
[2024-11-08 17:05:28,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17
[2024-11-08 17:05:28,064 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:05:28,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:05:28,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1851081336, now seen corresponding path program 1 times
[2024-11-08 17:05:28,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-08 17:05:28,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745899846]
[2024-11-08 17:05:28,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:05:28,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-08 17:05:28,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:05:28,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2024-11-08 17:05:28,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:05:28,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7
[2024-11-08 17:05:28,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:05:28,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2024-11-08 17:05:28,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:05:28,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30
[2024-11-08 17:05:28,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:05:28,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36
[2024-11-08 17:05:28,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:05:28,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13
[2024-11-08 17:05:28,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:05:28,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25
[2024-11-08 17:05:28,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:05:28,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76
[2024-11-08 17:05:28,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:05:28,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82
[2024-11-08 17:05:28,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:05:28,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94
[2024-11-08 17:05:28,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:05:28,968 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked.
[2024-11-08 17:05:28,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-08 17:05:28,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745899846]
[2024-11-08 17:05:28,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745899846] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-08 17:05:28,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2135872566]
[2024-11-08 17:05:28,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:05:28,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:05:28,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:05:28,971 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:05:28,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process
[2024-11-08 17:05:29,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:05:29,429 INFO L255 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 82 conjuncts are in the unsatisfiable core
[2024-11-08 17:05:29,435 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:05:29,618 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 16
[2024-11-08 17:05:29,625 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 17:05:29,626 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 16 treesize of output 11
[2024-11-08 17:05:29,636 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 16
[2024-11-08 17:05:29,644 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 17:05:29,646 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 16 treesize of output 11
[2024-11-08 17:05:29,789 INFO L349 Elim1Store]: treesize reduction 42, result has 20.8 percent of original size
[2024-11-08 17:05:29,790 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 140 treesize of output 140
[2024-11-08 17:05:29,800 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 17:05:29,803 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 18
[2024-11-08 17:05:29,811 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 17:05:29,813 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 17:05:29,818 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 18
[2024-11-08 17:05:29,827 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 29 treesize of output 20
[2024-11-08 17:05:31,299 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 44 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked.
[2024-11-08 17:05:31,300 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:05:32,131 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 17:05:32,131 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 123 treesize of output 116
[2024-11-08 17:05:32,166 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 17:05:32,167 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1967 treesize of output 1809
[2024-11-08 17:05:32,210 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 17:05:32,210 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 886 treesize of output 638
[2024-11-08 17:05:32,753 INFO L349 Elim1Store]: treesize reduction 79, result has 71.5 percent of original size
[2024-11-08 17:05:32,754 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 30386 treesize of output 28021
[2024-11-08 17:05:33,192 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 17:05:33,193 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 2752 treesize of output 2731
[2024-11-08 17:05:33,621 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2384 treesize of output 2324
[2024-11-08 17:05:33,982 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 4
[2024-11-08 17:05:49,174 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 17:05:49,174 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1211 treesize of output 1206
[2024-11-08 17:06:03,666 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 17:06:03,667 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1496 treesize of output 1492
[2024-11-08 17:06:08,859 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1490 treesize of output 1478
[2024-11-08 17:06:12,074 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1490 treesize of output 1478
[2024-11-08 17:06:14,297 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1490 treesize of output 1478
[2024-11-08 17:06:20,253 WARN L214 Elim1Store]: Array PQE input equivalent to true
[2024-11-08 17:06:20,630 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1360 treesize of output 1348
[2024-11-08 17:06:22,082 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1254 treesize of output 1246
[2024-11-08 17:06:22,855 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1212 treesize of output 1204
[2024-11-08 17:06:24,001 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 17:06:24,002 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1218 treesize of output 1218
[2024-11-08 17:06:25,943 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1212 treesize of output 1204
[2024-11-08 17:06:26,896 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1212 treesize of output 1204
[2024-11-08 17:06:28,412 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1133 treesize of output 1125
[2024-11-08 17:06:28,897 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 17:06:28,897 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1139 treesize of output 1139
[2024-11-08 17:06:29,737 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1133 treesize of output 1125
[2024-11-08 17:06:30,188 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1133 treesize of output 1125
[2024-11-08 17:06:38,218 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2024-11-08 17:06:38,219 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 2047 treesize of output 2043
[2024-11-08 17:06:49,589 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2041 treesize of output 2029
[2024-11-08 17:07:00,726 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2041 treesize of output 2029
[2024-11-08 17:07:12,744 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2041 treesize of output 2029
[2024-11-08 17:10:00,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 101
[2024-11-08 17:10:00,203 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory")
[2024-11-08 17:10:00,205 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception
[2024-11-08 17:10:00,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0
[2024-11-08 17:10:00,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:10:00,406 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver:
de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262)
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:277)
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90)
at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107)
at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:48)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.checkRedundancy(SimplifyDDA2.java:275)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convertForPreprocessedInputTerms(SimplifyDDA2.java:499)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:484)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:1)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:88)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.simplify(SimplifyDDA2.java:590)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:245)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:318)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify(QuantifierPusher.java:728)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:140)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:209)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:100)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:255)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:151)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:337)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:189)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:88)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:84)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:297)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:283)
at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:51)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:234)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:416)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:395)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:267)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:324)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:180)
at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.<init>(TraceCheckSpWp.java:159)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137)
at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.<init>(AutomatonFreeRefinementEngine.java:85)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.<init>(TraceAbstractionRefinementEngine.java:82)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:273)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.<init>(TraceAbstractionStarter.java:143)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)
Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518)
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701)
at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383)
at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258)
... 68 more
[2024-11-08 17:10:00,412 INFO L158 Benchmark]: Toolchain (without parser) took 782024.91ms. Allocated memory was 155.2MB in the beginning and 1.8GB in the end (delta: 1.7GB). Free memory was 115.8MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB.
[2024-11-08 17:10:00,412 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 113.2MB. Free memory is still 65.9MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-11-08 17:10:00,412 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3650.58ms. Allocated memory was 155.2MB in the beginning and 203.4MB in the end (delta: 48.2MB). Free memory was 115.8MB in the beginning and 133.8MB in the end (delta: -18.0MB). Peak memory consumption was 69.6MB. Max. memory is 16.1GB.
[2024-11-08 17:10:00,412 INFO L158 Benchmark]: Boogie Procedure Inliner took 143.86ms. Allocated memory is still 203.4MB. Free memory was 133.8MB in the beginning and 128.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2024-11-08 17:10:00,413 INFO L158 Benchmark]: Boogie Preprocessor took 133.08ms. Allocated memory is still 203.4MB. Free memory was 128.7MB in the beginning and 124.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2024-11-08 17:10:00,413 INFO L158 Benchmark]: RCFGBuilder took 885.55ms. Allocated memory is still 203.4MB. Free memory was 124.5MB in the beginning and 97.2MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB.
[2024-11-08 17:10:00,413 INFO L158 Benchmark]: TraceAbstraction took 777201.73ms. Allocated memory was 203.4MB in the beginning and 1.8GB in the end (delta: 1.6GB). Free memory was 97.2MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB.
[2024-11-08 17:10:00,415 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.40ms. Allocated memory is still 113.2MB. Free memory is still 65.9MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 3650.58ms. Allocated memory was 155.2MB in the beginning and 203.4MB in the end (delta: 48.2MB). Free memory was 115.8MB in the beginning and 133.8MB in the end (delta: -18.0MB). Peak memory consumption was 69.6MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 143.86ms. Allocated memory is still 203.4MB. Free memory was 133.8MB in the beginning and 128.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 133.08ms. Allocated memory is still 203.4MB. Free memory was 128.7MB in the beginning and 124.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
* RCFGBuilder took 885.55ms. Allocated memory is still 203.4MB. Free memory was 124.5MB in the beginning and 97.2MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB.
* TraceAbstraction took 777201.73ms. Allocated memory was 203.4MB in the beginning and 1.8GB in the end (delta: 1.6GB). Free memory was 97.2MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 1.1GB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")
de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory")
: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262)
RESULT: Ultimate could not prove your program: Toolchain returned no result.
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Using bit-precise analysis
Retrying with bit-precise analysis
### Bit-precise run ###
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_linked_list_begin_harness_negated.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash cf0e38c8708298b6c669a06e84f1e143a32d8eb782624bd4425e7da323fbf6a8
--- Real Ultimate output ---
This is Ultimate 0.2.5-dev-a016563
[2024-11-08 17:10:03,263 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-08 17:10:03,382 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-64bit-Automizer_Bitvector.epf
[2024-11-08 17:10:03,389 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-08 17:10:03,390 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-08 17:10:03,443 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-08 17:10:03,447 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-08 17:10:03,448 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-08 17:10:03,449 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-08 17:10:03,449 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-11-08 17:10:03,450 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-08 17:10:03,450 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-08 17:10:03,452 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-08 17:10:03,455 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-08 17:10:03,456 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-08 17:10:03,457 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-08 17:10:03,457 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-11-08 17:10:03,457 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-08 17:10:03,458 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-11-08 17:10:03,458 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-08 17:10:03,458 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-11-08 17:10:03,463 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-11-08 17:10:03,463 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2024-11-08 17:10:03,464 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-11-08 17:10:03,464 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-08 17:10:03,464 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-11-08 17:10:03,465 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-08 17:10:03,465 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-08 17:10:03,465 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-08 17:10:03,466 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-08 17:10:03,466 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-08 17:10:03,468 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 17:10:03,469 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-08 17:10:03,469 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-08 17:10:03,469 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-08 17:10:03,470 INFO L153 SettingsManager]: * Trace refinement strategy=FOX
[2024-11-08 17:10:03,471 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-08 17:10:03,471 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-08 17:10:03,472 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-08 17:10:03,473 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-11-08 17:10:03,473 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-08 17:10:03,474 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cf0e38c8708298b6c669a06e84f1e143a32d8eb782624bd4425e7da323fbf6a8
[2024-11-08 17:10:03,927 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-08 17:10:03,964 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-08 17:10:03,967 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-08 17:10:03,969 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-08 17:10:03,970 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-08 17:10:03,971 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/aws-c-common/aws_linked_list_begin_harness_negated.i
Unable to find full path for "g++"
[2024-11-08 17:10:06,552 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-11-08 17:10:07,186 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-08 17:10:07,187 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/sv-benchmarks/c/aws-c-common/aws_linked_list_begin_harness_negated.i
[2024-11-08 17:10:07,228 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/data/1f680fdda/4919f0c9ea654478bc799d6f695be2ad/FLAG4bdfe60e4
[2024-11-08 17:10:07,247 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/data/1f680fdda/4919f0c9ea654478bc799d6f695be2ad
[2024-11-08 17:10:07,251 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-08 17:10:07,253 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-08 17:10:07,255 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-08 17:10:07,255 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-08 17:10:07,263 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-08 17:10:07,264 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:10:07" (1/1) ...
[2024-11-08 17:10:07,266 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6871b1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:10:07, skipping insertion in model container
[2024-11-08 17:10:07,266 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:10:07" (1/1) ...
[2024-11-08 17:10:07,466 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-08 17:10:07,888 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_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/sv-benchmarks/c/aws-c-common/aws_linked_list_begin_harness_negated.i[4495,4508]
[2024-11-08 17:10:07,898 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_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/sv-benchmarks/c/aws-c-common/aws_linked_list_begin_harness_negated.i[4555,4568]
[2024-11-08 17:10:09,082 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-08 17:10:09,251 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-08 17:10:09,252 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-08 17:10:09,253 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-08 17:10:09,270 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-08 17:10:09,275 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 17:10:09,276 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 17:10:09,281 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 17:10:09,283 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-08 17:10:09,286 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 17:10:09,288 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 17:10:09,294 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-08 17:10:09,295 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-08 17:10:09,299 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-08 17:10:09,299 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-08 17:10:09,314 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 17:10:09,315 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-08 17:10:09,316 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 17:10:09,321 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-08 17:10:09,325 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 17:10:09,326 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-08 17:10:09,327 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 17:10:09,328 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-08 17:10:09,330 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 17:10:09,332 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-08 17:10:09,333 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 17:10:09,333 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-08 17:10:09,334 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 17:10:09,335 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 17:10:09,947 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-08 17:10:09,948 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-08 17:10:09,950 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-08 17:10:09,951 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-08 17:10:10,154 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-08 17:10:10,205 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_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/sv-benchmarks/c/aws-c-common/aws_linked_list_begin_harness_negated.i[150686,150699]
[2024-11-08 17:10:10,206 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 17:10:10,244 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution]
[2024-11-08 17:10:10,283 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-08 17:10:10,290 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_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/sv-benchmarks/c/aws-c-common/aws_linked_list_begin_harness_negated.i[4495,4508]
[2024-11-08 17:10:10,291 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_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/sv-benchmarks/c/aws-c-common/aws_linked_list_begin_harness_negated.i[4555,4568]
[2024-11-08 17:10:10,340 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-08 17:10:10,365 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-08 17:10:10,366 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-08 17:10:10,367 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-08 17:10:10,373 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-08 17:10:10,374 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 17:10:10,375 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 17:10:10,375 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 17:10:10,376 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-08 17:10:10,377 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 17:10:10,377 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 17:10:10,380 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-08 17:10:10,380 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-08 17:10:10,382 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-08 17:10:10,383 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-08 17:10:10,393 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 17:10:10,393 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-08 17:10:10,394 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 17:10:10,394 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-08 17:10:10,395 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 17:10:10,396 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-08 17:10:10,396 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 17:10:10,397 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-08 17:10:10,398 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 17:10:10,399 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-08 17:10:10,400 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 17:10:10,400 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-08 17:10:10,400 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 17:10:10,401 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 17:10:10,505 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-08 17:10:10,506 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-08 17:10:10,506 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-08 17:10:10,507 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-08 17:10:10,544 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model
[2024-11-08 17:10:10,559 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_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/sv-benchmarks/c/aws-c-common/aws_linked_list_begin_harness_negated.i[150686,150699]
[2024-11-08 17:10:10,560 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 17:10:10,572 INFO L200 MainTranslator]: Completed pre-run
[2024-11-08 17:10:10,597 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_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/sv-benchmarks/c/aws-c-common/aws_linked_list_begin_harness_negated.i[4495,4508]
[2024-11-08 17:10:10,598 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_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/sv-benchmarks/c/aws-c-common/aws_linked_list_begin_harness_negated.i[4555,4568]
[2024-11-08 17:10:10,680 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 17:10:10,681 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 17:10:10,681 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 17:10:10,682 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 17:10:10,683 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 17:10:10,690 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 17:10:10,691 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 17:10:10,692 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 17:10:10,693 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 17:10:10,698 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 17:10:10,699 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 17:10:10,699 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 17:10:10,700 WARN L1698 CHandler]: Possible shadowing of function index
[2024-11-08 17:10:10,843 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_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/sv-benchmarks/c/aws-c-common/aws_linked_list_begin_harness_negated.i[150686,150699]
[2024-11-08 17:10:10,844 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-08 17:10:11,151 INFO L204 MainTranslator]: Completed translation
[2024-11-08 17:10:11,152 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:10:11 WrapperNode
[2024-11-08 17:10:11,152 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-08 17:10:11,153 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-08 17:10:11,153 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-08 17:10:11,154 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-08 17:10:11,162 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:10:11" (1/1) ...
[2024-11-08 17:10:11,264 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:10:11" (1/1) ...
[2024-11-08 17:10:11,332 INFO L138 Inliner]: procedures = 687, calls = 1039, calls flagged for inlining = 53, calls inlined = 6, statements flattened = 142
[2024-11-08 17:10:11,336 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-08 17:10:11,337 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-08 17:10:11,337 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-08 17:10:11,337 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-08 17:10:11,354 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:10:11" (1/1) ...
[2024-11-08 17:10:11,355 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:10:11" (1/1) ...
[2024-11-08 17:10:11,366 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:10:11" (1/1) ...
[2024-11-08 17:10:11,409 INFO L175 MemorySlicer]: Split 24 memory accesses to 3 slices as follows [2, 5, 17]. 71 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5, 0]. The 6 writes are split as follows [0, 0, 6].
[2024-11-08 17:10:11,409 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:10:11" (1/1) ...
[2024-11-08 17:10:11,410 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:10:11" (1/1) ...
[2024-11-08 17:10:11,436 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:10:11" (1/1) ...
[2024-11-08 17:10:11,443 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:10:11" (1/1) ...
[2024-11-08 17:10:11,455 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:10:11" (1/1) ...
[2024-11-08 17:10:11,460 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:10:11" (1/1) ...
[2024-11-08 17:10:11,470 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-08 17:10:11,471 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-08 17:10:11,471 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-08 17:10:11,471 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-08 17:10:11,475 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:10:11" (1/1) ...
[2024-11-08 17:10:11,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-08 17:10:11,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:10:11,518 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-08 17:10:11,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-08 17:10:11,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-11-08 17:10:11,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-08 17:10:11,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1
[2024-11-08 17:10:11,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2
[2024-11-08 17:10:11,561 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2024-11-08 17:10:11,562 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2024-11-08 17:10:11,562 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_next_is_valid
[2024-11-08 17:10:11,563 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_next_is_valid
[2024-11-08 17:10:11,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2024-11-08 17:10:11,564 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_is_valid
[2024-11-08 17:10:11,564 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_is_valid
[2024-11-08 17:10:11,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-08 17:10:11,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0
[2024-11-08 17:10:11,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1
[2024-11-08 17:10:11,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2
[2024-11-08 17:10:11,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-08 17:10:11,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-08 17:10:11,565 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-08 17:10:11,566 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-08 17:10:11,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2024-11-08 17:10:11,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0
[2024-11-08 17:10:11,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1
[2024-11-08 17:10:11,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2
[2024-11-08 17:10:11,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0
[2024-11-08 17:10:11,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1
[2024-11-08 17:10:11,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2
[2024-11-08 17:10:11,567 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t
[2024-11-08 17:10:11,567 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t
[2024-11-08 17:10:11,953 INFO L238 CfgBuilder]: Building ICFG
[2024-11-08 17:10:11,956 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-08 17:10:12,484 INFO L? ?]: Removed 60 outVars from TransFormulas that were not future-live.
[2024-11-08 17:10:12,484 INFO L287 CfgBuilder]: Performing block encoding
[2024-11-08 17:10:12,502 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-08 17:10:12,502 INFO L316 CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-08 17:10:12,504 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:10:12 BoogieIcfgContainer
[2024-11-08 17:10:12,504 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-08 17:10:12,506 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-08 17:10:12,508 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-08 17:10:12,511 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-08 17:10:12,512 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:10:07" (1/3) ...
[2024-11-08 17:10:12,515 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35923907 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:10:12, skipping insertion in model container
[2024-11-08 17:10:12,515 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:10:11" (2/3) ...
[2024-11-08 17:10:12,515 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35923907 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:10:12, skipping insertion in model container
[2024-11-08 17:10:12,517 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:10:12" (3/3) ...
[2024-11-08 17:10:12,518 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_linked_list_begin_harness_negated.i
[2024-11-08 17:10:12,539 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-08 17:10:12,539 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-08 17:10:12,631 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-08 17:10:12,643 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;@1ccfb8c5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-08 17:10:12,643 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-08 17:10:12,650 INFO L276 IsEmpty]: Start isEmpty. Operand has 70 states, 50 states have (on average 1.34) internal successors, (67), 51 states have internal predecessors, (67), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13)
[2024-11-08 17:10:12,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69
[2024-11-08 17:10:12,664 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:10:12,666 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:10:12,666 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:10:12,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:10:12,675 INFO L85 PathProgramCache]: Analyzing trace with hash -232165965, now seen corresponding path program 1 times
[2024-11-08 17:10:12,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:10:12,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1984139073]
[2024-11-08 17:10:12,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:10:12,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:10:12,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:10:12,707 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:10:12,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-08 17:10:13,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:10:13,068 INFO L255 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-08 17:10:13,081 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:10:13,128 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked.
[2024-11-08 17:10:13,129 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:10:13,130 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:10:13,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1984139073]
[2024-11-08 17:10:13,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1984139073] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:10:13,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:10:13,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-08 17:10:13,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357638675]
[2024-11-08 17:10:13,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:10:13,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-08 17:10:13,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:10:13,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-08 17:10:13,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-08 17:10:13,181 INFO L87 Difference]: Start difference. First operand has 70 states, 50 states have (on average 1.34) internal successors, (67), 51 states have internal predecessors, (67), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7)
[2024-11-08 17:10:13,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:10:13,228 INFO L93 Difference]: Finished difference Result 132 states and 184 transitions.
[2024-11-08 17:10:13,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-08 17:10:13,231 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 68
[2024-11-08 17:10:13,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:10:13,242 INFO L225 Difference]: With dead ends: 132
[2024-11-08 17:10:13,242 INFO L226 Difference]: Without dead ends: 65
[2024-11-08 17:10:13,246 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-08 17:10:13,250 INFO L432 NwaCegarLoop]: 91 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, 91 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
[2024-11-08 17:10:13,252 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 17:10:13,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states.
[2024-11-08 17:10:13,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65.
[2024-11-08 17:10:13,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 46 states have (on average 1.326086956521739) internal successors, (61), 47 states have internal predecessors, (61), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12)
[2024-11-08 17:10:13,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 86 transitions.
[2024-11-08 17:10:13,338 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 86 transitions. Word has length 68
[2024-11-08 17:10:13,338 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:10:13,339 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 86 transitions.
[2024-11-08 17:10:13,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7)
[2024-11-08 17:10:13,341 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 86 transitions.
[2024-11-08 17:10:13,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69
[2024-11-08 17:10:13,348 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:10:13,349 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:10:13,380 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-08 17:10:13,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:10:13,550 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:10:13,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:10:13,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1518473935, now seen corresponding path program 1 times
[2024-11-08 17:10:13,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:10:13,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1356989988]
[2024-11-08 17:10:13,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:10:13,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:10:13,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:10:13,557 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:10:13,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-08 17:10:13,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:10:13,878 INFO L255 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-08 17:10:13,883 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:10:13,974 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.
[2024-11-08 17:10:13,977 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:10:13,977 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:10:13,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1356989988]
[2024-11-08 17:10:13,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1356989988] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:10:13,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:10:13,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-08 17:10:13,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221023820]
[2024-11-08 17:10:13,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:10:13,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 17:10:13,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:10:13,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 17:10:13,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-08 17:10:13,983 INFO L87 Difference]: Start difference. First operand 65 states and 86 transitions. Second operand has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7)
[2024-11-08 17:10:14,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:10:14,113 INFO L93 Difference]: Finished difference Result 118 states and 159 transitions.
[2024-11-08 17:10:14,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-08 17:10:14,114 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 68
[2024-11-08 17:10:14,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:10:14,120 INFO L225 Difference]: With dead ends: 118
[2024-11-08 17:10:14,121 INFO L226 Difference]: Without dead ends: 67
[2024-11-08 17:10:14,122 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-08 17:10:14,124 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 0 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 17:10:14,125 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 397 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 17:10:14,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states.
[2024-11-08 17:10:14,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67.
[2024-11-08 17:10:14,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 47 states have (on average 1.3191489361702127) internal successors, (62), 49 states have internal predecessors, (62), 13 states have call successors, (13), 5 states have call predecessors, (13), 6 states have return successors, (15), 12 states have call predecessors, (15), 12 states have call successors, (15)
[2024-11-08 17:10:14,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 90 transitions.
[2024-11-08 17:10:14,149 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 90 transitions. Word has length 68
[2024-11-08 17:10:14,149 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:10:14,150 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 90 transitions.
[2024-11-08 17:10:14,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7)
[2024-11-08 17:10:14,150 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 90 transitions.
[2024-11-08 17:10:14,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71
[2024-11-08 17:10:14,152 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:10:14,153 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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]
[2024-11-08 17:10:14,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-11-08 17:10:14,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:10:14,354 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:10:14,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:10:14,355 INFO L85 PathProgramCache]: Analyzing trace with hash -62294227, now seen corresponding path program 1 times
[2024-11-08 17:10:14,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:10:14,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [254608721]
[2024-11-08 17:10:14,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:10:14,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:10:14,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:10:14,359 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:10:14,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-08 17:10:14,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:10:14,639 INFO L255 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-08 17:10:14,646 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:10:14,820 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2024-11-08 17:10:14,822 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:10:14,822 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:10:14,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [254608721]
[2024-11-08 17:10:14,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [254608721] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:10:14,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:10:14,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-08 17:10:14,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170020210]
[2024-11-08 17:10:14,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:10:14,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 17:10:14,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:10:14,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 17:10:14,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-08 17:10:14,827 INFO L87 Difference]: Start difference. First operand 67 states and 90 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7)
[2024-11-08 17:10:15,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:10:15,117 INFO L93 Difference]: Finished difference Result 125 states and 170 transitions.
[2024-11-08 17:10:15,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-08 17:10:15,119 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 70
[2024-11-08 17:10:15,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:10:15,120 INFO L225 Difference]: With dead ends: 125
[2024-11-08 17:10:15,121 INFO L226 Difference]: Without dead ends: 72
[2024-11-08 17:10:15,122 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-08 17:10:15,123 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 24 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-08 17:10:15,124 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 312 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-08 17:10:15,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states.
[2024-11-08 17:10:15,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 70.
[2024-11-08 17:10:15,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 49 states have (on average 1.3061224489795917) internal successors, (64), 52 states have internal predecessors, (64), 13 states have call successors, (13), 5 states have call predecessors, (13), 7 states have return successors, (17), 12 states have call predecessors, (17), 12 states have call successors, (17)
[2024-11-08 17:10:15,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 94 transitions.
[2024-11-08 17:10:15,138 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 94 transitions. Word has length 70
[2024-11-08 17:10:15,139 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:10:15,139 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 94 transitions.
[2024-11-08 17:10:15,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7)
[2024-11-08 17:10:15,139 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 94 transitions.
[2024-11-08 17:10:15,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73
[2024-11-08 17:10:15,142 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:10:15,142 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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]
[2024-11-08 17:10:15,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2024-11-08 17:10:15,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:10:15,343 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:10:15,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:10:15,344 INFO L85 PathProgramCache]: Analyzing trace with hash -152991959, now seen corresponding path program 1 times
[2024-11-08 17:10:15,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:10:15,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [588409801]
[2024-11-08 17:10:15,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:10:15,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:10:15,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:10:15,348 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:10:15,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-08 17:10:15,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:10:15,610 INFO L255 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-11-08 17:10:15,618 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:10:15,803 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2024-11-08 17:10:15,805 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:10:15,806 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:10:15,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [588409801]
[2024-11-08 17:10:15,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [588409801] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:10:15,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:10:15,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-11-08 17:10:15,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132637724]
[2024-11-08 17:10:15,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:10:15,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-08 17:10:15,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:10:15,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-08 17:10:15,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2024-11-08 17:10:15,812 INFO L87 Difference]: Start difference. First operand 70 states and 94 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7)
[2024-11-08 17:10:16,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:10:16,213 INFO L93 Difference]: Finished difference Result 138 states and 190 transitions.
[2024-11-08 17:10:16,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-11-08 17:10:16,215 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 72
[2024-11-08 17:10:16,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:10:16,217 INFO L225 Difference]: With dead ends: 138
[2024-11-08 17:10:16,217 INFO L226 Difference]: Without dead ends: 82
[2024-11-08 17:10:16,218 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72
[2024-11-08 17:10:16,222 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 36 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-08 17:10:16,223 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 360 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-08 17:10:16,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states.
[2024-11-08 17:10:16,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 73.
[2024-11-08 17:10:16,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 52 states have (on average 1.3269230769230769) internal successors, (69), 55 states have internal predecessors, (69), 13 states have call successors, (13), 5 states have call predecessors, (13), 7 states have return successors, (17), 12 states have call predecessors, (17), 12 states have call successors, (17)
[2024-11-08 17:10:16,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 99 transitions.
[2024-11-08 17:10:16,246 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 99 transitions. Word has length 72
[2024-11-08 17:10:16,246 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:10:16,247 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 99 transitions.
[2024-11-08 17:10:16,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 7 states have internal predecessors, (44), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7)
[2024-11-08 17:10:16,247 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 99 transitions.
[2024-11-08 17:10:16,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75
[2024-11-08 17:10:16,249 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:10:16,249 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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]
[2024-11-08 17:10:16,277 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2024-11-08 17:10:16,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:10:16,450 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:10:16,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:10:16,451 INFO L85 PathProgramCache]: Analyzing trace with hash 233232122, now seen corresponding path program 1 times
[2024-11-08 17:10:16,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:10:16,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [527597134]
[2024-11-08 17:10:16,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:10:16,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:10:16,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:10:16,455 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:10:16,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-08 17:10:16,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:10:16,721 INFO L255 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-08 17:10:16,724 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:10:16,750 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked.
[2024-11-08 17:10:16,755 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:10:16,755 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:10:16,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [527597134]
[2024-11-08 17:10:16,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [527597134] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:10:16,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:10:16,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-08 17:10:16,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217677563]
[2024-11-08 17:10:16,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:10:16,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-08 17:10:16,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:10:16,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-08 17:10:16,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 17:10:16,757 INFO L87 Difference]: Start difference. First operand 73 states and 99 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7)
[2024-11-08 17:10:16,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:10:16,821 INFO L93 Difference]: Finished difference Result 136 states and 191 transitions.
[2024-11-08 17:10:16,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-08 17:10:16,822 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 74
[2024-11-08 17:10:16,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:10:16,825 INFO L225 Difference]: With dead ends: 136
[2024-11-08 17:10:16,826 INFO L226 Difference]: Without dead ends: 77
[2024-11-08 17:10:16,827 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-08 17:10:16,827 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 2 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 17:10:16,828 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 156 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 17:10:16,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states.
[2024-11-08 17:10:16,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 74.
[2024-11-08 17:10:16,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 53 states have (on average 1.320754716981132) internal successors, (70), 56 states have internal predecessors, (70), 13 states have call successors, (13), 5 states have call predecessors, (13), 7 states have return successors, (17), 12 states have call predecessors, (17), 12 states have call successors, (17)
[2024-11-08 17:10:16,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 100 transitions.
[2024-11-08 17:10:16,852 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 100 transitions. Word has length 74
[2024-11-08 17:10:16,853 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:10:16,859 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 100 transitions.
[2024-11-08 17:10:16,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7)
[2024-11-08 17:10:16,860 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 100 transitions.
[2024-11-08 17:10:16,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83
[2024-11-08 17:10:16,863 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:10:16,864 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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]
[2024-11-08 17:10:16,892 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2024-11-08 17:10:17,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:10:17,065 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:10:17,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:10:17,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1841506532, now seen corresponding path program 1 times
[2024-11-08 17:10:17,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:10:17,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2098308587]
[2024-11-08 17:10:17,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:10:17,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:10:17,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:10:17,071 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:10:17,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-11-08 17:10:17,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:10:17,326 INFO L255 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-08 17:10:17,329 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:10:17,388 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2024-11-08 17:10:17,390 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:10:17,391 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:10:17,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2098308587]
[2024-11-08 17:10:17,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2098308587] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:10:17,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:10:17,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-08 17:10:17,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545480120]
[2024-11-08 17:10:17,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:10:17,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 17:10:17,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:10:17,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 17:10:17,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-08 17:10:17,395 INFO L87 Difference]: Start difference. First operand 74 states and 100 transitions. Second operand has 6 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8)
[2024-11-08 17:10:17,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:10:17,463 INFO L93 Difference]: Finished difference Result 127 states and 172 transitions.
[2024-11-08 17:10:17,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-08 17:10:17,464 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 82
[2024-11-08 17:10:17,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:10:17,466 INFO L225 Difference]: With dead ends: 127
[2024-11-08 17:10:17,466 INFO L226 Difference]: Without dead ends: 74
[2024-11-08 17:10:17,467 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-08 17:10:17,471 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 0 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 17:10:17,471 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 396 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 17:10:17,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states.
[2024-11-08 17:10:17,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74.
[2024-11-08 17:10:17,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 53 states have (on average 1.320754716981132) internal successors, (70), 56 states have internal predecessors, (70), 13 states have call successors, (13), 5 states have call predecessors, (13), 7 states have return successors, (16), 12 states have call predecessors, (16), 12 states have call successors, (16)
[2024-11-08 17:10:17,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 99 transitions.
[2024-11-08 17:10:17,486 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 99 transitions. Word has length 82
[2024-11-08 17:10:17,486 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:10:17,490 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 99 transitions.
[2024-11-08 17:10:17,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8)
[2024-11-08 17:10:17,490 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 99 transitions.
[2024-11-08 17:10:17,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85
[2024-11-08 17:10:17,492 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:10:17,492 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:10:17,519 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0
[2024-11-08 17:10:17,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:10:17,693 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:10:17,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:10:17,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1006097432, now seen corresponding path program 1 times
[2024-11-08 17:10:17,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:10:17,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [395753293]
[2024-11-08 17:10:17,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:10:17,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:10:17,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:10:17,698 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:10:17,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2024-11-08 17:10:17,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:10:17,975 INFO L255 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 8 conjuncts are in the unsatisfiable core
[2024-11-08 17:10:17,978 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:10:18,172 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2024-11-08 17:10:18,177 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:10:18,177 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:10:18,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [395753293]
[2024-11-08 17:10:18,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [395753293] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:10:18,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:10:18,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-11-08 17:10:18,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584861738]
[2024-11-08 17:10:18,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:10:18,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-08 17:10:18,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:10:18,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-08 17:10:18,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2024-11-08 17:10:18,180 INFO L87 Difference]: Start difference. First operand 74 states and 99 transitions. Second operand has 7 states, 6 states have (on average 10.666666666666666) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8)
[2024-11-08 17:10:18,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:10:18,473 INFO L93 Difference]: Finished difference Result 136 states and 180 transitions.
[2024-11-08 17:10:18,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-11-08 17:10:18,474 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.666666666666666) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 84
[2024-11-08 17:10:18,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:10:18,476 INFO L225 Difference]: With dead ends: 136
[2024-11-08 17:10:18,477 INFO L226 Difference]: Without dead ends: 76
[2024-11-08 17:10:18,477 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2024-11-08 17:10:18,478 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 25 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-11-08 17:10:18,480 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 378 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-11-08 17:10:18,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states.
[2024-11-08 17:10:18,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 74.
[2024-11-08 17:10:18,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 53 states have (on average 1.3018867924528301) internal successors, (69), 56 states have internal predecessors, (69), 13 states have call successors, (13), 5 states have call predecessors, (13), 7 states have return successors, (16), 12 states have call predecessors, (16), 12 states have call successors, (16)
[2024-11-08 17:10:18,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 98 transitions.
[2024-11-08 17:10:18,491 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 98 transitions. Word has length 84
[2024-11-08 17:10:18,491 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:10:18,492 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 98 transitions.
[2024-11-08 17:10:18,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.666666666666666) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8)
[2024-11-08 17:10:18,492 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 98 transitions.
[2024-11-08 17:10:18,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87
[2024-11-08 17:10:18,493 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:10:18,493 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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]
[2024-11-08 17:10:18,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0
[2024-11-08 17:10:18,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:10:18,694 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:10:18,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:10:18,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1183197420, now seen corresponding path program 1 times
[2024-11-08 17:10:18,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:10:18,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2082163296]
[2024-11-08 17:10:18,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:10:18,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:10:18,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:10:18,697 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:10:18,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2024-11-08 17:10:18,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:10:18,916 INFO L255 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-11-08 17:10:18,919 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:10:19,070 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2024-11-08 17:10:19,070 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:10:19,071 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:10:19,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2082163296]
[2024-11-08 17:10:19,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2082163296] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:10:19,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:10:19,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-11-08 17:10:19,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996934475]
[2024-11-08 17:10:19,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:10:19,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-11-08 17:10:19,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:10:19,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-11-08 17:10:19,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2024-11-08 17:10:19,073 INFO L87 Difference]: Start difference. First operand 74 states and 98 transitions. Second operand has 8 states, 7 states have (on average 9.428571428571429) internal successors, (66), 8 states have internal predecessors, (66), 4 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8)
[2024-11-08 17:10:19,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:10:19,428 INFO L93 Difference]: Finished difference Result 136 states and 179 transitions.
[2024-11-08 17:10:19,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-11-08 17:10:19,429 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.428571428571429) internal successors, (66), 8 states have internal predecessors, (66), 4 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 86
[2024-11-08 17:10:19,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:10:19,430 INFO L225 Difference]: With dead ends: 136
[2024-11-08 17:10:19,430 INFO L226 Difference]: Without dead ends: 75
[2024-11-08 17:10:19,431 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110
[2024-11-08 17:10:19,432 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 37 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-11-08 17:10:19,432 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 415 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-11-08 17:10:19,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states.
[2024-11-08 17:10:19,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 70.
[2024-11-08 17:10:19,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 50 states have (on average 1.28) internal successors, (64), 52 states have internal predecessors, (64), 13 states have call successors, (13), 5 states have call predecessors, (13), 6 states have return successors, (14), 12 states have call predecessors, (14), 12 states have call successors, (14)
[2024-11-08 17:10:19,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 91 transitions.
[2024-11-08 17:10:19,443 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 91 transitions. Word has length 86
[2024-11-08 17:10:19,443 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:10:19,443 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 91 transitions.
[2024-11-08 17:10:19,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.428571428571429) internal successors, (66), 8 states have internal predecessors, (66), 4 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8)
[2024-11-08 17:10:19,444 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 91 transitions.
[2024-11-08 17:10:19,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97
[2024-11-08 17:10:19,445 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:10:19,445 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:10:19,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0
[2024-11-08 17:10:19,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:10:19,646 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:10:19,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:10:19,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1326098887, now seen corresponding path program 2 times
[2024-11-08 17:10:19,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:10:19,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1103503836]
[2024-11-08 17:10:19,647 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-08 17:10:19,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:10:19,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:10:19,648 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:10:19,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2024-11-08 17:10:19,860 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2024-11-08 17:10:19,860 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-08 17:10:19,863 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 5 conjuncts are in the unsatisfiable core
[2024-11-08 17:10:19,866 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:10:19,921 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked.
[2024-11-08 17:10:19,921 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:10:19,922 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:10:19,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1103503836]
[2024-11-08 17:10:19,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1103503836] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:10:19,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:10:19,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-11-08 17:10:19,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355573137]
[2024-11-08 17:10:19,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:10:19,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-08 17:10:19,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:10:19,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-08 17:10:19,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-08 17:10:19,925 INFO L87 Difference]: Start difference. First operand 70 states and 91 transitions. Second operand has 6 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8)
[2024-11-08 17:10:19,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:10:19,990 INFO L93 Difference]: Finished difference Result 78 states and 99 transitions.
[2024-11-08 17:10:19,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-08 17:10:19,991 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8) Word has length 96
[2024-11-08 17:10:19,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:10:19,992 INFO L225 Difference]: With dead ends: 78
[2024-11-08 17:10:19,992 INFO L226 Difference]: Without dead ends: 76
[2024-11-08 17:10:19,993 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2024-11-08 17:10:19,994 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 3 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 17:10:19,994 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 402 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 17:10:19,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states.
[2024-11-08 17:10:20,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 75.
[2024-11-08 17:10:20,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 53 states have (on average 1.2641509433962264) internal successors, (67), 55 states have internal predecessors, (67), 14 states have call successors, (14), 6 states have call predecessors, (14), 7 states have return successors, (15), 13 states have call predecessors, (15), 13 states have call successors, (15)
[2024-11-08 17:10:20,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 96 transitions.
[2024-11-08 17:10:20,004 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 96 transitions. Word has length 96
[2024-11-08 17:10:20,005 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:10:20,005 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 96 transitions.
[2024-11-08 17:10:20,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 1 states have call successors, (8)
[2024-11-08 17:10:20,006 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 96 transitions.
[2024-11-08 17:10:20,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103
[2024-11-08 17:10:20,007 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:10:20,007 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:10:20,034 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0
[2024-11-08 17:10:20,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:10:20,211 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:10:20,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:10:20,212 INFO L85 PathProgramCache]: Analyzing trace with hash 940220263, now seen corresponding path program 1 times
[2024-11-08 17:10:20,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:10:20,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1282841403]
[2024-11-08 17:10:20,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:10:20,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:10:20,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:10:20,214 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:10:20,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process
[2024-11-08 17:10:20,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:10:20,501 INFO L255 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-08 17:10:20,504 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:10:20,586 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked.
[2024-11-08 17:10:20,586 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:10:20,586 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:10:20,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1282841403]
[2024-11-08 17:10:20,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1282841403] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:10:20,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:10:20,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-11-08 17:10:20,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385656190]
[2024-11-08 17:10:20,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:10:20,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-08 17:10:20,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:10:20,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-08 17:10:20,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2024-11-08 17:10:20,591 INFO L87 Difference]: Start difference. First operand 75 states and 96 transitions. Second operand has 7 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10)
[2024-11-08 17:10:20,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:10:20,684 INFO L93 Difference]: Finished difference Result 139 states and 180 transitions.
[2024-11-08 17:10:20,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-11-08 17:10:20,685 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 102
[2024-11-08 17:10:20,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:10:20,687 INFO L225 Difference]: With dead ends: 139
[2024-11-08 17:10:20,687 INFO L226 Difference]: Without dead ends: 78
[2024-11-08 17:10:20,687 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2024-11-08 17:10:20,688 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 0 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 17:10:20,688 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 465 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 17:10:20,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states.
[2024-11-08 17:10:20,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78.
[2024-11-08 17:10:20,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 55 states have (on average 1.2545454545454546) internal successors, (69), 58 states have internal predecessors, (69), 14 states have call successors, (14), 6 states have call predecessors, (14), 8 states have return successors, (18), 13 states have call predecessors, (18), 13 states have call successors, (18)
[2024-11-08 17:10:20,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 101 transitions.
[2024-11-08 17:10:20,701 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 101 transitions. Word has length 102
[2024-11-08 17:10:20,701 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:10:20,701 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 101 transitions.
[2024-11-08 17:10:20,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10)
[2024-11-08 17:10:20,702 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 101 transitions.
[2024-11-08 17:10:20,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105
[2024-11-08 17:10:20,703 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:10:20,704 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:10:20,732 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0
[2024-11-08 17:10:20,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:10:20,905 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:10:20,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:10:20,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1457784413, now seen corresponding path program 1 times
[2024-11-08 17:10:20,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:10:20,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [747857308]
[2024-11-08 17:10:20,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:10:20,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:10:20,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:10:20,907 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:10:20,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process
[2024-11-08 17:10:21,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:10:21,155 INFO L255 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-08 17:10:21,158 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:10:21,244 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked.
[2024-11-08 17:10:21,244 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:10:21,245 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:10:21,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [747857308]
[2024-11-08 17:10:21,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [747857308] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:10:21,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:10:21,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2024-11-08 17:10:21,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720909149]
[2024-11-08 17:10:21,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:10:21,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-08 17:10:21,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:10:21,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-08 17:10:21,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2024-11-08 17:10:21,248 INFO L87 Difference]: Start difference. First operand 78 states and 101 transitions. Second operand has 7 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9)
[2024-11-08 17:10:21,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:10:21,348 INFO L93 Difference]: Finished difference Result 135 states and 175 transitions.
[2024-11-08 17:10:21,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2024-11-08 17:10:21,349 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 104
[2024-11-08 17:10:21,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:10:21,351 INFO L225 Difference]: With dead ends: 135
[2024-11-08 17:10:21,351 INFO L226 Difference]: Without dead ends: 78
[2024-11-08 17:10:21,361 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2024-11-08 17:10:21,362 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 0 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-11-08 17:10:21,363 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 464 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-11-08 17:10:21,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states.
[2024-11-08 17:10:21,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78.
[2024-11-08 17:10:21,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 55 states have (on average 1.2545454545454546) internal successors, (69), 58 states have internal predecessors, (69), 14 states have call successors, (14), 6 states have call predecessors, (14), 8 states have return successors, (17), 13 states have call predecessors, (17), 13 states have call successors, (17)
[2024-11-08 17:10:21,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 100 transitions.
[2024-11-08 17:10:21,378 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 100 transitions. Word has length 104
[2024-11-08 17:10:21,379 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:10:21,379 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 100 transitions.
[2024-11-08 17:10:21,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9)
[2024-11-08 17:10:21,380 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 100 transitions.
[2024-11-08 17:10:21,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107
[2024-11-08 17:10:21,382 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:10:21,382 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:10:21,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0
[2024-11-08 17:10:21,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:10:21,583 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:10:21,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:10:21,583 INFO L85 PathProgramCache]: Analyzing trace with hash -750956321, now seen corresponding path program 1 times
[2024-11-08 17:10:21,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:10:21,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1265780931]
[2024-11-08 17:10:21,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:10:21,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:10:21,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:10:21,586 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:10:21,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process
[2024-11-08 17:10:21,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:10:21,905 INFO L255 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 21 conjuncts are in the unsatisfiable core
[2024-11-08 17:10:21,916 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:10:22,023 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1
[2024-11-08 17:10:22,033 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1
[2024-11-08 17:10:26,725 WARN L873 $PredicateComparison]: unable to prove that (or (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_1| (_ BitVec 64)) (|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_1| (_ BitVec 64))) (not (= (select (select |c_#memory_$Pointer$#2.base| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_1|) |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_1|) (_ bv0 64)))) (exists ((|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_1| (_ BitVec 64)) (|v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_1| (_ BitVec 64))) (not (= (_ bv0 64) (select (select |c_#memory_$Pointer$#2.offset| |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.base_BEFORE_CALL_1|) |v_aws_linked_list_is_valid_aws_linked_list_is_valid_deep_~temp~0#1.offset_BEFORE_CALL_1|))))) is different from true
[2024-11-08 17:10:27,076 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 42 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked.
[2024-11-08 17:10:27,076 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:10:27,688 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 2 proven. 30 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked.
[2024-11-08 17:10:27,688 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:10:27,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1265780931]
[2024-11-08 17:10:27,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1265780931] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 17:10:27,688 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-08 17:10:27,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8] total 17
[2024-11-08 17:10:27,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65510288]
[2024-11-08 17:10:27,689 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-08 17:10:27,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states
[2024-11-08 17:10:27,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:10:27,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants.
[2024-11-08 17:10:27,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=199, Unknown=1, NotChecked=28, Total=272
[2024-11-08 17:10:27,690 INFO L87 Difference]: Start difference. First operand 78 states and 100 transitions. Second operand has 17 states, 17 states have (on average 6.823529411764706) internal successors, (116), 17 states have internal predecessors, (116), 5 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19)
[2024-11-08 17:10:29,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:10:29,772 INFO L93 Difference]: Finished difference Result 188 states and 257 transitions.
[2024-11-08 17:10:29,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2024-11-08 17:10:29,773 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.823529411764706) internal successors, (116), 17 states have internal predecessors, (116), 5 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) Word has length 106
[2024-11-08 17:10:29,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:10:29,775 INFO L225 Difference]: With dead ends: 188
[2024-11-08 17:10:29,776 INFO L226 Difference]: Without dead ends: 124
[2024-11-08 17:10:29,776 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 198 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=76, Invalid=347, Unknown=1, NotChecked=38, Total=462
[2024-11-08 17:10:29,777 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 73 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 15 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 275 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time
[2024-11-08 17:10:29,777 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 651 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 368 Invalid, 8 Unknown, 275 Unchecked, 1.6s Time]
[2024-11-08 17:10:29,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states.
[2024-11-08 17:10:29,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 97.
[2024-11-08 17:10:29,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 72 states have (on average 1.2638888888888888) internal successors, (91), 75 states have internal predecessors, (91), 15 states have call successors, (15), 7 states have call predecessors, (15), 9 states have return successors, (19), 14 states have call predecessors, (19), 14 states have call successors, (19)
[2024-11-08 17:10:29,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 125 transitions.
[2024-11-08 17:10:29,795 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 125 transitions. Word has length 106
[2024-11-08 17:10:29,795 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:10:29,795 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 125 transitions.
[2024-11-08 17:10:29,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.823529411764706) internal successors, (116), 17 states have internal predecessors, (116), 5 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19)
[2024-11-08 17:10:29,796 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 125 transitions.
[2024-11-08 17:10:29,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107
[2024-11-08 17:10:29,797 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:10:29,797 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:10:29,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0
[2024-11-08 17:10:29,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:10:29,998 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:10:29,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:10:29,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1171191077, now seen corresponding path program 1 times
[2024-11-08 17:10:29,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:10:29,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [950713455]
[2024-11-08 17:10:30,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:10:30,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:10:30,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:10:30,001 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:10:30,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process
[2024-11-08 17:10:30,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:10:30,227 INFO L255 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-08 17:10:30,229 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:10:30,246 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked.
[2024-11-08 17:10:30,250 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:10:30,250 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:10:30,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [950713455]
[2024-11-08 17:10:30,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [950713455] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:10:30,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:10:30,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 17:10:30,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610439130]
[2024-11-08 17:10:30,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:10:30,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 17:10:30,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:10:30,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 17:10:30,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 17:10:30,254 INFO L87 Difference]: Start difference. First operand 97 states and 125 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9)
[2024-11-08 17:10:30,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:10:30,287 INFO L93 Difference]: Finished difference Result 181 states and 241 transitions.
[2024-11-08 17:10:30,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-08 17:10:30,288 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 106
[2024-11-08 17:10:30,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:10:30,289 INFO L225 Difference]: With dead ends: 181
[2024-11-08 17:10:30,290 INFO L226 Difference]: Without dead ends: 98
[2024-11-08 17:10:30,290 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 17:10:30,291 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 0 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 17:10:30,291 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 240 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 17:10:30,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states.
[2024-11-08 17:10:30,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 97.
[2024-11-08 17:10:30,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 72 states have (on average 1.25) internal successors, (90), 75 states have internal predecessors, (90), 15 states have call successors, (15), 7 states have call predecessors, (15), 9 states have return successors, (19), 14 states have call predecessors, (19), 14 states have call successors, (19)
[2024-11-08 17:10:30,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 124 transitions.
[2024-11-08 17:10:30,303 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 124 transitions. Word has length 106
[2024-11-08 17:10:30,304 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:10:30,304 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 124 transitions.
[2024-11-08 17:10:30,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9)
[2024-11-08 17:10:30,304 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 124 transitions.
[2024-11-08 17:10:30,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107
[2024-11-08 17:10:30,306 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:10:30,306 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:10:30,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0
[2024-11-08 17:10:30,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:10:30,506 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:10:30,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:10:30,507 INFO L85 PathProgramCache]: Analyzing trace with hash 763565015, now seen corresponding path program 1 times
[2024-11-08 17:10:30,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:10:30,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [505224788]
[2024-11-08 17:10:30,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:10:30,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:10:30,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:10:30,509 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:10:30,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process
[2024-11-08 17:10:30,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:10:30,731 INFO L255 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-08 17:10:30,733 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:10:30,753 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked.
[2024-11-08 17:10:30,754 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:10:30,754 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:10:30,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [505224788]
[2024-11-08 17:10:30,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [505224788] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:10:30,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:10:30,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-08 17:10:30,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796330163]
[2024-11-08 17:10:30,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:10:30,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-08 17:10:30,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:10:30,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-08 17:10:30,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 17:10:30,761 INFO L87 Difference]: Start difference. First operand 97 states and 124 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9)
[2024-11-08 17:10:30,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:10:30,801 INFO L93 Difference]: Finished difference Result 179 states and 239 transitions.
[2024-11-08 17:10:30,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-08 17:10:30,802 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 106
[2024-11-08 17:10:30,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:10:30,803 INFO L225 Difference]: With dead ends: 179
[2024-11-08 17:10:30,803 INFO L226 Difference]: Without dead ends: 96
[2024-11-08 17:10:30,804 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-08 17:10:30,804 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 0 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-08 17:10:30,805 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 241 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-08 17:10:30,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states.
[2024-11-08 17:10:30,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 93.
[2024-11-08 17:10:30,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 68 states have (on average 1.2352941176470589) internal successors, (84), 71 states have internal predecessors, (84), 15 states have call successors, (15), 7 states have call predecessors, (15), 9 states have return successors, (19), 14 states have call predecessors, (19), 14 states have call successors, (19)
[2024-11-08 17:10:30,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 118 transitions.
[2024-11-08 17:10:30,822 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 118 transitions. Word has length 106
[2024-11-08 17:10:30,823 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:10:30,823 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 118 transitions.
[2024-11-08 17:10:30,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9)
[2024-11-08 17:10:30,823 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 118 transitions.
[2024-11-08 17:10:30,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111
[2024-11-08 17:10:30,824 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:10:30,825 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:10:30,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0
[2024-11-08 17:10:31,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:10:31,025 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:10:31,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:10:31,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1886253951, now seen corresponding path program 1 times
[2024-11-08 17:10:31,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:10:31,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [489194533]
[2024-11-08 17:10:31,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:10:31,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:10:31,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:10:31,028 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:10:31,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process
[2024-11-08 17:10:31,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:10:31,266 INFO L255 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 25 conjuncts are in the unsatisfiable core
[2024-11-08 17:10:31,270 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:10:31,325 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 8 treesize of output 1
[2024-11-08 17:10:31,328 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 8 treesize of output 1
[2024-11-08 17:10:33,420 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 35 proven. 29 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked.
[2024-11-08 17:10:33,420 INFO L311 TraceCheckSpWp]: Computing backward predicates...
[2024-11-08 17:10:34,603 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 12 proven. 37 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked.
[2024-11-08 17:10:34,603 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:10:34,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [489194533]
[2024-11-08 17:10:34,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [489194533] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-08 17:10:34,604 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-08 17:10:34,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10] total 21
[2024-11-08 17:10:34,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737797423]
[2024-11-08 17:10:34,604 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-08 17:10:34,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2024-11-08 17:10:34,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:10:34,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2024-11-08 17:10:34,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=346, Unknown=0, NotChecked=0, Total=420
[2024-11-08 17:10:34,606 INFO L87 Difference]: Start difference. First operand 93 states and 118 transitions. Second operand has 21 states, 21 states have (on average 6.428571428571429) internal successors, (135), 19 states have internal predecessors, (135), 10 states have call successors, (21), 4 states have call predecessors, (21), 7 states have return successors, (20), 9 states have call predecessors, (20), 10 states have call successors, (20)
[2024-11-08 17:10:39,140 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:10:43,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:10:47,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:10:51,467 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:10:55,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]
[2024-11-08 17:10:58,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:10:58,370 INFO L93 Difference]: Finished difference Result 219 states and 272 transitions.
[2024-11-08 17:10:58,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2024-11-08 17:10:58,371 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 6.428571428571429) internal successors, (135), 19 states have internal predecessors, (135), 10 states have call successors, (21), 4 states have call predecessors, (21), 7 states have return successors, (20), 9 states have call predecessors, (20), 10 states have call successors, (20) Word has length 110
[2024-11-08 17:10:58,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:10:58,373 INFO L225 Difference]: With dead ends: 219
[2024-11-08 17:10:58,373 INFO L226 Difference]: Without dead ends: 139
[2024-11-08 17:10:58,374 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 196 SyntacticMatches, 7 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=146, Invalid=666, Unknown=0, NotChecked=0, Total=812
[2024-11-08 17:10:58,375 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 107 mSDsluCounter, 562 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 42 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.9s IncrementalHoareTripleChecker+Time
[2024-11-08 17:10:58,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 649 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 375 Invalid, 5 Unknown, 0 Unchecked, 22.9s Time]
[2024-11-08 17:10:58,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states.
[2024-11-08 17:10:58,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 136.
[2024-11-08 17:10:58,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 105 states have (on average 1.2095238095238094) internal successors, (127), 108 states have internal predecessors, (127), 17 states have call successors, (17), 11 states have call predecessors, (17), 13 states have return successors, (22), 16 states have call predecessors, (22), 16 states have call successors, (22)
[2024-11-08 17:10:58,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 166 transitions.
[2024-11-08 17:10:58,397 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 166 transitions. Word has length 110
[2024-11-08 17:10:58,398 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:10:58,398 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 166 transitions.
[2024-11-08 17:10:58,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 6.428571428571429) internal successors, (135), 19 states have internal predecessors, (135), 10 states have call successors, (21), 4 states have call predecessors, (21), 7 states have return successors, (20), 9 states have call predecessors, (20), 10 states have call successors, (20)
[2024-11-08 17:10:58,399 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 166 transitions.
[2024-11-08 17:10:58,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111
[2024-11-08 17:10:58,404 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:10:58,404 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:10:58,432 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0
[2024-11-08 17:10:58,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:10:58,605 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:10:58,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:10:58,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1397596095, now seen corresponding path program 1 times
[2024-11-08 17:10:58,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:10:58,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [818905245]
[2024-11-08 17:10:58,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:10:58,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:10:58,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:10:58,607 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:10:58,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process
[2024-11-08 17:10:58,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:10:58,841 INFO L255 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 21 conjuncts are in the unsatisfiable core
[2024-11-08 17:10:58,845 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:10:59,153 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7
[2024-11-08 17:10:59,171 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-08 17:10:59,172 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1
[2024-11-08 17:11:01,800 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked.
[2024-11-08 17:11:01,800 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-08 17:11:01,801 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-08 17:11:01,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [818905245]
[2024-11-08 17:11:01,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [818905245] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-08 17:11:01,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-08 17:11:01,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11
[2024-11-08 17:11:01,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164617868]
[2024-11-08 17:11:01,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-08 17:11:01,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2024-11-08 17:11:01,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-08 17:11:01,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2024-11-08 17:11:01,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110
[2024-11-08 17:11:01,803 INFO L87 Difference]: Start difference. First operand 136 states and 166 transitions. Second operand has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 5 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9)
[2024-11-08 17:11:04,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-08 17:11:04,618 INFO L93 Difference]: Finished difference Result 330 states and 405 transitions.
[2024-11-08 17:11:04,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2024-11-08 17:11:04,619 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 5 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 110
[2024-11-08 17:11:04,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-08 17:11:04,622 INFO L225 Difference]: With dead ends: 330
[2024-11-08 17:11:04,622 INFO L226 Difference]: Without dead ends: 259
[2024-11-08 17:11:04,623 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 92 SyntacticMatches, 8 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210
[2024-11-08 17:11:04,624 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 35 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time
[2024-11-08 17:11:04,625 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 500 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time]
[2024-11-08 17:11:04,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states.
[2024-11-08 17:11:04,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 257.
[2024-11-08 17:11:04,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 200 states have (on average 1.215) internal successors, (243), 206 states have internal predecessors, (243), 32 states have call successors, (32), 20 states have call predecessors, (32), 24 states have return successors, (42), 30 states have call predecessors, (42), 30 states have call successors, (42)
[2024-11-08 17:11:04,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 317 transitions.
[2024-11-08 17:11:04,700 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 317 transitions. Word has length 110
[2024-11-08 17:11:04,701 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-11-08 17:11:04,701 INFO L471 AbstractCegarLoop]: Abstraction has 257 states and 317 transitions.
[2024-11-08 17:11:04,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 5 states have call successors, (10), 3 states have call predecessors, (10), 4 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9)
[2024-11-08 17:11:04,701 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 317 transitions.
[2024-11-08 17:11:04,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111
[2024-11-08 17:11:04,704 INFO L207 NwaCegarLoop]: Found error trace
[2024-11-08 17:11:04,704 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-08 17:11:04,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0
[2024-11-08 17:11:04,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:11:04,905 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-08 17:11:04,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-08 17:11:04,906 INFO L85 PathProgramCache]: Analyzing trace with hash 376527741, now seen corresponding path program 1 times
[2024-11-08 17:11:04,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-08 17:11:04,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1149694556]
[2024-11-08 17:11:04,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-08 17:11:04,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-08 17:11:04,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3
[2024-11-08 17:11:04,908 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-08 17:11:04,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e797e31f-5707-4a05-a7a1-02fd10e3e6f9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process
[2024-11-08 17:11:05,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-08 17:11:05,226 INFO L255 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 27 conjuncts are in the unsatisfiable core
[2024-11-08 17:11:05,232 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-11-08 17:11:05,397 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1
[2024-11-08 17:11:05,409 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1