./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec6_product33.cil.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 9bd2c7ff
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe48bcd-3e01-43f8-ae0f-ab416b85e363/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe48bcd-3e01-43f8-ae0f-ab416b85e363/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe48bcd-3e01-43f8-ae0f-ab416b85e363/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe48bcd-3e01-43f8-ae0f-ab416b85e363/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec6_product33.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe48bcd-3e01-43f8-ae0f-ab416b85e363/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe48bcd-3e01-43f8-ae0f-ab416b85e363/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f589c9222141e642cc5dd52da93380b476d19c138575c9f6da35a3e335e5e2df
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-9bd2c7f
[2023-11-19 08:01:42,794 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-11-19 08:01:42,882 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe48bcd-3e01-43f8-ae0f-ab416b85e363/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf
[2023-11-19 08:01:42,888 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-11-19 08:01:42,889 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-19 08:01:42,920 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-19 08:01:42,924 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-19 08:01:42,925 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-19 08:01:42,926 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-19 08:01:42,932 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-19 08:01:42,933 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-19 08:01:42,933 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-11-19 08:01:42,934 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-11-19 08:01:42,935 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-19 08:01:42,935 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-11-19 08:01:42,936 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-11-19 08:01:42,937 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-11-19 08:01:42,937 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-11-19 08:01:42,938 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-11-19 08:01:42,938 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-11-19 08:01:42,939 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-19 08:01:42,940 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-11-19 08:01:42,942 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-11-19 08:01:42,942 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-11-19 08:01:42,943 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-11-19 08:01:42,944 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-19 08:01:42,945 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-11-19 08:01:42,945 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-11-19 08:01:42,946 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 08:01:42,946 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-19 08:01:42,948 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-11-19 08:01:42,948 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-19 08:01:42,948 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-11-19 08:01:42,949 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-19 08:01:42,949 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-19 08:01:42,949 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-19 08:01:42,950 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-11-19 08:01:42,950 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-19 08:01:42,950 INFO  L153        SettingsManager]:  * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC
[2023-11-19 08:01:42,950 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_afe48bcd-3e01-43f8-ae0f-ab416b85e363/bin/uautomizer-verify-uCwYo4JHxu/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_afe48bcd-3e01-43f8-ae0f-ab416b85e363/bin/uautomizer-verify-uCwYo4JHxu
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f589c9222141e642cc5dd52da93380b476d19c138575c9f6da35a3e335e5e2df
[2023-11-19 08:01:43,288 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-19 08:01:43,312 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-19 08:01:43,315 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-19 08:01:43,316 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-11-19 08:01:43,317 INFO  L274        PluginConnector]: CDTParser initialized
[2023-11-19 08:01:43,318 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe48bcd-3e01-43f8-ae0f-ab416b85e363/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/product-lines/email_spec6_product33.cil.c
[2023-11-19 08:01:46,746 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-11-19 08:01:47,163 INFO  L384              CDTParser]: Found 1 translation units.
[2023-11-19 08:01:47,165 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe48bcd-3e01-43f8-ae0f-ab416b85e363/sv-benchmarks/c/product-lines/email_spec6_product33.cil.c
[2023-11-19 08:01:47,194 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe48bcd-3e01-43f8-ae0f-ab416b85e363/bin/uautomizer-verify-uCwYo4JHxu/data/4f1cc1892/d1daf7509ffe435e9fea09e8b4818cf2/FLAGfbb2b57c9
[2023-11-19 08:01:47,212 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe48bcd-3e01-43f8-ae0f-ab416b85e363/bin/uautomizer-verify-uCwYo4JHxu/data/4f1cc1892/d1daf7509ffe435e9fea09e8b4818cf2
[2023-11-19 08:01:47,215 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-19 08:01:47,217 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-19 08:01:47,219 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-19 08:01:47,219 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-19 08:01:47,229 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-19 08:01:47,230 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:01:47" (1/1) ...
[2023-11-19 08:01:47,231 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3efd1e12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:47, skipping insertion in model container
[2023-11-19 08:01:47,231 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:01:47" (1/1) ...
[2023-11-19 08:01:47,314 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-11-19 08:01:47,581 WARN  L240   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_afe48bcd-3e01-43f8-ae0f-ab416b85e363/sv-benchmarks/c/product-lines/email_spec6_product33.cil.c[1934,1947]
[2023-11-19 08:01:48,035 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-19 08:01:48,051 INFO  L202         MainTranslator]: Completed pre-run
[2023-11-19 08:01:48,063 WARN  L75    lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [48]
[2023-11-19 08:01:48,065 WARN  L75    lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [66]
[2023-11-19 08:01:48,066 WARN  L75    lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [75]
[2023-11-19 08:01:48,066 WARN  L75    lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1155]
[2023-11-19 08:01:48,066 WARN  L75    lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptDecrypt_spec.i","") [1582]
[2023-11-19 08:01:48,067 WARN  L75    lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1628]
[2023-11-19 08:01:48,067 WARN  L75    lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1857]
[2023-11-19 08:01:48,067 WARN  L75    lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2145]
[2023-11-19 08:01:48,068 WARN  L75    lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2180]
[2023-11-19 08:01:48,068 WARN  L75    lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2546]
[2023-11-19 08:01:48,068 WARN  L75    lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2945]
[2023-11-19 08:01:48,073 WARN  L240   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_afe48bcd-3e01-43f8-ae0f-ab416b85e363/sv-benchmarks/c/product-lines/email_spec6_product33.cil.c[1934,1947]
[2023-11-19 08:01:48,196 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-19 08:01:48,248 WARN  L675               CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler.
[2023-11-19 08:01:48,256 INFO  L206         MainTranslator]: Completed translation
[2023-11-19 08:01:48,257 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:48 WrapperNode
[2023-11-19 08:01:48,258 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-19 08:01:48,259 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-19 08:01:48,259 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-19 08:01:48,260 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-19 08:01:48,268 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:48" (1/1) ...
[2023-11-19 08:01:48,331 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:48" (1/1) ...
[2023-11-19 08:01:48,394 INFO  L138                Inliner]: procedures = 135, calls = 235, calls flagged for inlining = 66, calls inlined = 61, statements flattened = 1107
[2023-11-19 08:01:48,395 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-19 08:01:48,395 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-19 08:01:48,396 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-19 08:01:48,396 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-11-19 08:01:48,407 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:48" (1/1) ...
[2023-11-19 08:01:48,408 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:48" (1/1) ...
[2023-11-19 08:01:48,417 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:48" (1/1) ...
[2023-11-19 08:01:48,417 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:48" (1/1) ...
[2023-11-19 08:01:48,447 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:48" (1/1) ...
[2023-11-19 08:01:48,460 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:48" (1/1) ...
[2023-11-19 08:01:48,481 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:48" (1/1) ...
[2023-11-19 08:01:48,501 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:48" (1/1) ...
[2023-11-19 08:01:48,515 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-19 08:01:48,516 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-19 08:01:48,516 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-11-19 08:01:48,516 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-11-19 08:01:48,517 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:48" (1/1) ...
[2023-11-19 08:01:48,525 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-19 08:01:48,545 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe48bcd-3e01-43f8-ae0f-ab416b85e363/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:01:48,567 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe48bcd-3e01-43f8-ae0f-ab416b85e363/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-19 08:01:48,576 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe48bcd-3e01-43f8-ae0f-ab416b85e363/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-19 08:01:48,607 INFO  L130     BoogieDeclarations]: Found specification of procedure getClientPrivateKey
[2023-11-19 08:01:48,607 INFO  L138     BoogieDeclarations]: Found implementation of procedure getClientPrivateKey
[2023-11-19 08:01:48,607 INFO  L130     BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey
[2023-11-19 08:01:48,608 INFO  L138     BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey
[2023-11-19 08:01:48,608 INFO  L130     BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey
[2023-11-19 08:01:48,608 INFO  L138     BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey
[2023-11-19 08:01:48,608 INFO  L130     BoogieDeclarations]: Found specification of procedure getEmailTo
[2023-11-19 08:01:48,608 INFO  L138     BoogieDeclarations]: Found implementation of procedure getEmailTo
[2023-11-19 08:01:48,609 INFO  L130     BoogieDeclarations]: Found specification of procedure setEmailFrom
[2023-11-19 08:01:48,609 INFO  L138     BoogieDeclarations]: Found implementation of procedure setEmailFrom
[2023-11-19 08:01:48,609 INFO  L130     BoogieDeclarations]: Found specification of procedure isReadable
[2023-11-19 08:01:48,609 INFO  L138     BoogieDeclarations]: Found implementation of procedure isReadable
[2023-11-19 08:01:48,609 INFO  L130     BoogieDeclarations]: Found specification of procedure createClientKeyringEntry
[2023-11-19 08:01:48,610 INFO  L138     BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry
[2023-11-19 08:01:48,610 INFO  L130     BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted
[2023-11-19 08:01:48,610 INFO  L138     BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted
[2023-11-19 08:01:48,610 INFO  L130     BoogieDeclarations]: Found specification of procedure getEmailSignKey
[2023-11-19 08:01:48,610 INFO  L138     BoogieDeclarations]: Found implementation of procedure getEmailSignKey
[2023-11-19 08:01:48,611 INFO  L130     BoogieDeclarations]: Found specification of procedure chuckKeyAdd
[2023-11-19 08:01:48,611 INFO  L138     BoogieDeclarations]: Found implementation of procedure chuckKeyAdd
[2023-11-19 08:01:48,611 INFO  L130     BoogieDeclarations]: Found specification of procedure puts
[2023-11-19 08:01:48,611 INFO  L130     BoogieDeclarations]: Found specification of procedure getEmailFrom
[2023-11-19 08:01:48,612 INFO  L138     BoogieDeclarations]: Found implementation of procedure getEmailFrom
[2023-11-19 08:01:48,612 INFO  L130     BoogieDeclarations]: Found specification of procedure queue
[2023-11-19 08:01:48,612 INFO  L138     BoogieDeclarations]: Found implementation of procedure queue
[2023-11-19 08:01:48,612 INFO  L130     BoogieDeclarations]: Found specification of procedure setClientId
[2023-11-19 08:01:48,612 INFO  L138     BoogieDeclarations]: Found implementation of procedure setClientId
[2023-11-19 08:01:48,613 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-19 08:01:48,613 INFO  L130     BoogieDeclarations]: Found specification of procedure isSigned
[2023-11-19 08:01:48,613 INFO  L138     BoogieDeclarations]: Found implementation of procedure isSigned
[2023-11-19 08:01:48,613 INFO  L130     BoogieDeclarations]: Found specification of procedure isKeyPairValid
[2023-11-19 08:01:48,613 INFO  L138     BoogieDeclarations]: Found implementation of procedure isKeyPairValid
[2023-11-19 08:01:48,614 INFO  L130     BoogieDeclarations]: Found specification of procedure setClientKeyringUser
[2023-11-19 08:01:48,614 INFO  L138     BoogieDeclarations]: Found implementation of procedure setClientKeyringUser
[2023-11-19 08:01:48,614 INFO  L130     BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey
[2023-11-19 08:01:48,614 INFO  L138     BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey
[2023-11-19 08:01:48,615 INFO  L130     BoogieDeclarations]: Found specification of procedure outgoing
[2023-11-19 08:01:48,615 INFO  L138     BoogieDeclarations]: Found implementation of procedure outgoing
[2023-11-19 08:01:48,615 INFO  L130     BoogieDeclarations]: Found specification of procedure findPublicKey
[2023-11-19 08:01:48,615 INFO  L138     BoogieDeclarations]: Found implementation of procedure findPublicKey
[2023-11-19 08:01:48,615 INFO  L130     BoogieDeclarations]: Found specification of procedure sendEmail
[2023-11-19 08:01:48,615 INFO  L138     BoogieDeclarations]: Found implementation of procedure sendEmail
[2023-11-19 08:01:48,616 INFO  L130     BoogieDeclarations]: Found specification of procedure isEncrypted
[2023-11-19 08:01:48,616 INFO  L138     BoogieDeclarations]: Found implementation of procedure isEncrypted
[2023-11-19 08:01:48,616 INFO  L130     BoogieDeclarations]: Found specification of procedure setClientPrivateKey
[2023-11-19 08:01:48,616 INFO  L138     BoogieDeclarations]: Found implementation of procedure setClientPrivateKey
[2023-11-19 08:01:48,616 INFO  L130     BoogieDeclarations]: Found specification of procedure setEmailTo
[2023-11-19 08:01:48,617 INFO  L138     BoogieDeclarations]: Found implementation of procedure setEmailTo
[2023-11-19 08:01:48,617 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2023-11-19 08:01:48,617 INFO  L130     BoogieDeclarations]: Found specification of procedure generateKeyPair
[2023-11-19 08:01:48,617 INFO  L138     BoogieDeclarations]: Found implementation of procedure generateKeyPair
[2023-11-19 08:01:48,617 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-19 08:01:48,617 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-19 08:01:48,869 INFO  L236             CfgBuilder]: Building ICFG
[2023-11-19 08:01:48,871 INFO  L262             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-19 08:01:50,132 INFO  L277             CfgBuilder]: Performing block encoding
[2023-11-19 08:01:50,151 INFO  L297             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-19 08:01:50,151 INFO  L302             CfgBuilder]: Removed 1 assume(true) statements.
[2023-11-19 08:01:50,169 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:01:50 BoogieIcfgContainer
[2023-11-19 08:01:50,169 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-19 08:01:50,176 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-19 08:01:50,177 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-11-19 08:01:50,181 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-11-19 08:01:50,182 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:01:47" (1/3) ...
[2023-11-19 08:01:50,183 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c16f980 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:01:50, skipping insertion in model container
[2023-11-19 08:01:50,184 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:01:48" (2/3) ...
[2023-11-19 08:01:50,186 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c16f980 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:01:50, skipping insertion in model container
[2023-11-19 08:01:50,188 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:01:50" (3/3) ...
[2023-11-19 08:01:50,190 INFO  L112   eAbstractionObserver]: Analyzing ICFG email_spec6_product33.cil.c
[2023-11-19 08:01:50,211 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-19 08:01:50,211 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-11-19 08:01:50,293 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-19 08:01:50,303 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@6f3ebcaa, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=<UNSUPPORTED>, UseSemiCommutativity=<UNSUPPORTED>, Solver=<NOT_USED>, SolverTimeout=<NOT_USED>]
[2023-11-19 08:01:50,303 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-11-19 08:01:50,312 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 393 states, 302 states have (on average 1.4966887417218544) internal successors, (452), 306 states have internal predecessors, (452), 65 states have call successors, (65), 24 states have call predecessors, (65), 24 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65)
[2023-11-19 08:01:50,342 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 127
[2023-11-19 08:01:50,342 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-19 08:01:50,344 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 08:01:50,344 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-19 08:01:50,351 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:01:50,352 INFO  L85        PathProgramCache]: Analyzing trace with hash -722514137, now seen corresponding path program 1 times
[2023-11-19 08:01:50,363 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 08:01:50,364 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444228612]
[2023-11-19 08:01:50,364 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:01:50,365 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 08:01:50,682 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:51,376 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2023-11-19 08:01:51,383 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:51,398 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2023-11-19 08:01:51,401 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:51,406 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2023-11-19 08:01:51,411 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:51,443 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24
[2023-11-19 08:01:51,447 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:51,450 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30
[2023-11-19 08:01:51,454 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:51,458 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36
[2023-11-19 08:01:51,461 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:51,475 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47
[2023-11-19 08:01:51,477 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:51,492 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52
[2023-11-19 08:01:51,494 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:51,498 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61
[2023-11-19 08:01:51,500 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:51,504 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69
[2023-11-19 08:01:51,510 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:51,512 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75
[2023-11-19 08:01:51,514 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:51,517 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2023-11-19 08:01:51,519 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:51,521 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92
[2023-11-19 08:01:51,523 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:51,526 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2023-11-19 08:01:51,528 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:51,531 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106
[2023-11-19 08:01:51,535 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:51,537 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112
[2023-11-19 08:01:51,541 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:51,545 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118
[2023-11-19 08:01:51,547 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:51,553 INFO  L134       CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked.
[2023-11-19 08:01:51,554 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 08:01:51,554 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444228612]
[2023-11-19 08:01:51,555 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444228612] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-19 08:01:51,556 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275389175]
[2023-11-19 08:01:51,556 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:01:51,557 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 08:01:51,557 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe48bcd-3e01-43f8-ae0f-ab416b85e363/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:01:51,563 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe48bcd-3e01-43f8-ae0f-ab416b85e363/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-19 08:01:51,587 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe48bcd-3e01-43f8-ae0f-ab416b85e363/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-11-19 08:01:51,976 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:52,000 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1175 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-11-19 08:01:52,012 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 08:01:52,054 INFO  L134       CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked.
[2023-11-19 08:01:52,060 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 08:01:52,061 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275389175] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 08:01:52,061 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-11-19 08:01:52,061 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9
[2023-11-19 08:01:52,064 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874668662]
[2023-11-19 08:01:52,065 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 08:01:52,072 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-11-19 08:01:52,075 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 08:01:52,125 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-11-19 08:01:52,126 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72
[2023-11-19 08:01:52,131 INFO  L87              Difference]: Start difference. First operand  has 393 states, 302 states have (on average 1.4966887417218544) internal successors, (452), 306 states have internal predecessors, (452), 65 states have call successors, (65), 24 states have call predecessors, (65), 24 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) Second operand  has 2 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17)
[2023-11-19 08:01:52,218 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 08:01:52,218 INFO  L93              Difference]: Finished difference Result 627 states and 910 transitions.
[2023-11-19 08:01:52,219 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-11-19 08:01:52,220 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 126
[2023-11-19 08:01:52,221 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 08:01:52,238 INFO  L225             Difference]: With dead ends: 627
[2023-11-19 08:01:52,239 INFO  L226             Difference]: Without dead ends: 386
[2023-11-19 08:01:52,249 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72
[2023-11-19 08:01:52,252 INFO  L413           NwaCegarLoop]: 578 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, 578 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
[2023-11-19 08:01:52,254 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 578 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-19 08:01:52,273 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 386 states.
[2023-11-19 08:01:52,333 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 386.
[2023-11-19 08:01:52,336 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 386 states, 296 states have (on average 1.489864864864865) internal successors, (441), 299 states have internal predecessors, (441), 65 states have call successors, (65), 24 states have call predecessors, (65), 24 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64)
[2023-11-19 08:01:52,342 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 570 transitions.
[2023-11-19 08:01:52,344 INFO  L78                 Accepts]: Start accepts. Automaton has 386 states and 570 transitions. Word has length 126
[2023-11-19 08:01:52,346 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-19 08:01:52,346 INFO  L495      AbstractCegarLoop]: Abstraction has 386 states and 570 transitions.
[2023-11-19 08:01:52,346 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17)
[2023-11-19 08:01:52,346 INFO  L276                IsEmpty]: Start isEmpty. Operand 386 states and 570 transitions.
[2023-11-19 08:01:52,352 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 128
[2023-11-19 08:01:52,352 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-19 08:01:52,353 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 08:01:52,380 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe48bcd-3e01-43f8-ae0f-ab416b85e363/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2023-11-19 08:01:52,575 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe48bcd-3e01-43f8-ae0f-ab416b85e363/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2023-11-19 08:01:52,576 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-19 08:01:52,576 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:01:52,577 INFO  L85        PathProgramCache]: Analyzing trace with hash -1600743464, now seen corresponding path program 1 times
[2023-11-19 08:01:52,577 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 08:01:52,577 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356098543]
[2023-11-19 08:01:52,577 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:01:52,578 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 08:01:52,624 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:52,890 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2023-11-19 08:01:52,892 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:52,903 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2023-11-19 08:01:52,905 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:52,907 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2023-11-19 08:01:52,910 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:52,932 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24
[2023-11-19 08:01:52,935 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:52,937 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30
[2023-11-19 08:01:52,940 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:52,941 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36
[2023-11-19 08:01:52,944 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:52,956 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48
[2023-11-19 08:01:52,957 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:52,970 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53
[2023-11-19 08:01:52,971 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:52,973 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62
[2023-11-19 08:01:52,974 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:52,976 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70
[2023-11-19 08:01:52,978 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:52,979 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76
[2023-11-19 08:01:52,981 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:52,983 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2023-11-19 08:01:52,985 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:52,986 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93
[2023-11-19 08:01:52,988 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:52,989 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2023-11-19 08:01:52,991 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:52,992 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107
[2023-11-19 08:01:52,994 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:52,996 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113
[2023-11-19 08:01:52,997 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:52,999 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119
[2023-11-19 08:01:53,000 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:53,002 INFO  L134       CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked.
[2023-11-19 08:01:53,003 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 08:01:53,003 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356098543]
[2023-11-19 08:01:53,003 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356098543] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-19 08:01:53,004 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1624101015]
[2023-11-19 08:01:53,004 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:01:53,004 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 08:01:53,004 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe48bcd-3e01-43f8-ae0f-ab416b85e363/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:01:53,005 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe48bcd-3e01-43f8-ae0f-ab416b85e363/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-19 08:01:53,027 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe48bcd-3e01-43f8-ae0f-ab416b85e363/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2023-11-19 08:01:53,387 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:53,392 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1176 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-11-19 08:01:53,400 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 08:01:53,428 INFO  L134       CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked.
[2023-11-19 08:01:53,428 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 08:01:53,429 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1624101015] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 08:01:53,429 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-11-19 08:01:53,429 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10
[2023-11-19 08:01:53,430 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738727488]
[2023-11-19 08:01:53,430 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 08:01:53,431 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 08:01:53,432 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 08:01:53,433 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 08:01:53,433 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90
[2023-11-19 08:01:53,434 INFO  L87              Difference]: Start difference. First operand 386 states and 570 transitions. Second operand  has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17)
[2023-11-19 08:01:53,482 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 08:01:53,482 INFO  L93              Difference]: Finished difference Result 617 states and 891 transitions.
[2023-11-19 08:01:53,483 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-19 08:01:53,483 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 127
[2023-11-19 08:01:53,484 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 08:01:53,489 INFO  L225             Difference]: With dead ends: 617
[2023-11-19 08:01:53,489 INFO  L226             Difference]: Without dead ends: 389
[2023-11-19 08:01:53,491 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90
[2023-11-19 08:01:53,493 INFO  L413           NwaCegarLoop]: 568 mSDtfsCounter, 1 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1134 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-19 08:01:53,494 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1134 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-19 08:01:53,495 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 389 states.
[2023-11-19 08:01:53,524 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 388.
[2023-11-19 08:01:53,525 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 388 states, 298 states have (on average 1.4865771812080537) internal successors, (443), 301 states have internal predecessors, (443), 65 states have call successors, (65), 24 states have call predecessors, (65), 24 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64)
[2023-11-19 08:01:53,531 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 572 transitions.
[2023-11-19 08:01:53,531 INFO  L78                 Accepts]: Start accepts. Automaton has 388 states and 572 transitions. Word has length 127
[2023-11-19 08:01:53,532 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-19 08:01:53,532 INFO  L495      AbstractCegarLoop]: Abstraction has 388 states and 572 transitions.
[2023-11-19 08:01:53,532 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17)
[2023-11-19 08:01:53,533 INFO  L276                IsEmpty]: Start isEmpty. Operand 388 states and 572 transitions.
[2023-11-19 08:01:53,536 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 137
[2023-11-19 08:01:53,536 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-19 08:01:53,537 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 08:01:53,565 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe48bcd-3e01-43f8-ae0f-ab416b85e363/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2023-11-19 08:01:53,755 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe48bcd-3e01-43f8-ae0f-ab416b85e363/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 08:01:53,755 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-19 08:01:53,756 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:01:53,756 INFO  L85        PathProgramCache]: Analyzing trace with hash 1086346780, now seen corresponding path program 1 times
[2023-11-19 08:01:53,756 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 08:01:53,756 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729016545]
[2023-11-19 08:01:53,757 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:01:53,757 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 08:01:53,792 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:54,070 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2023-11-19 08:01:54,074 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:54,086 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2023-11-19 08:01:54,088 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:54,090 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2023-11-19 08:01:54,093 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:54,117 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24
[2023-11-19 08:01:54,121 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:54,123 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30
[2023-11-19 08:01:54,126 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:54,134 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36
[2023-11-19 08:01:54,137 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:54,150 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57
[2023-11-19 08:01:54,152 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:54,169 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62
[2023-11-19 08:01:54,171 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:54,172 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71
[2023-11-19 08:01:54,175 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:54,177 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79
[2023-11-19 08:01:54,180 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:54,185 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85
[2023-11-19 08:01:54,186 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:54,189 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96
[2023-11-19 08:01:54,193 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:54,197 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102
[2023-11-19 08:01:54,199 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:54,203 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109
[2023-11-19 08:01:54,204 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:54,206 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116
[2023-11-19 08:01:54,215 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:54,219 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122
[2023-11-19 08:01:54,221 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:54,223 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128
[2023-11-19 08:01:54,228 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:54,231 INFO  L134       CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked.
[2023-11-19 08:01:54,231 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 08:01:54,234 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729016545]
[2023-11-19 08:01:54,235 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729016545] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-19 08:01:54,235 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [11436914]
[2023-11-19 08:01:54,235 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:01:54,235 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 08:01:54,236 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe48bcd-3e01-43f8-ae0f-ab416b85e363/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:01:54,237 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe48bcd-3e01-43f8-ae0f-ab416b85e363/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-19 08:01:54,263 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe48bcd-3e01-43f8-ae0f-ab416b85e363/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2023-11-19 08:01:54,603 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:54,608 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1201 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-11-19 08:01:54,615 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 08:01:54,643 INFO  L134       CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked.
[2023-11-19 08:01:54,643 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 08:01:54,644 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [11436914] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 08:01:54,644 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-11-19 08:01:54,644 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10
[2023-11-19 08:01:54,644 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956803392]
[2023-11-19 08:01:54,645 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 08:01:54,645 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-19 08:01:54,646 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 08:01:54,646 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-19 08:01:54,647 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90
[2023-11-19 08:01:54,647 INFO  L87              Difference]: Start difference. First operand 388 states and 572 transitions. Second operand  has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17)
[2023-11-19 08:01:54,694 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 08:01:54,694 INFO  L93              Difference]: Finished difference Result 811 states and 1211 transitions.
[2023-11-19 08:01:54,695 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-19 08:01:54,695 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 136
[2023-11-19 08:01:54,696 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 08:01:54,701 INFO  L225             Difference]: With dead ends: 811
[2023-11-19 08:01:54,701 INFO  L226             Difference]: Without dead ends: 450
[2023-11-19 08:01:54,703 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90
[2023-11-19 08:01:54,705 INFO  L413           NwaCegarLoop]: 598 mSDtfsCounter, 115 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 1124 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-19 08:01:54,706 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 1124 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-19 08:01:54,708 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 450 states.
[2023-11-19 08:01:54,748 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 442.
[2023-11-19 08:01:54,749 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 442 states, 341 states have (on average 1.5043988269794721) internal successors, (513), 344 states have internal predecessors, (513), 76 states have call successors, (76), 24 states have call predecessors, (76), 24 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75)
[2023-11-19 08:01:54,754 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 664 transitions.
[2023-11-19 08:01:54,755 INFO  L78                 Accepts]: Start accepts. Automaton has 442 states and 664 transitions. Word has length 136
[2023-11-19 08:01:54,755 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-19 08:01:54,756 INFO  L495      AbstractCegarLoop]: Abstraction has 442 states and 664 transitions.
[2023-11-19 08:01:54,756 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17)
[2023-11-19 08:01:54,756 INFO  L276                IsEmpty]: Start isEmpty. Operand 442 states and 664 transitions.
[2023-11-19 08:01:54,760 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 138
[2023-11-19 08:01:54,761 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-19 08:01:54,761 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 08:01:54,793 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe48bcd-3e01-43f8-ae0f-ab416b85e363/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2023-11-19 08:01:54,984 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe48bcd-3e01-43f8-ae0f-ab416b85e363/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 08:01:54,985 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-19 08:01:54,985 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:01:54,985 INFO  L85        PathProgramCache]: Analyzing trace with hash 1017580011, now seen corresponding path program 1 times
[2023-11-19 08:01:54,985 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 08:01:54,986 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231315412]
[2023-11-19 08:01:54,986 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:01:54,986 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 08:01:55,037 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:55,264 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2023-11-19 08:01:55,266 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:55,278 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2023-11-19 08:01:55,280 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:55,283 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2023-11-19 08:01:55,286 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:55,319 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24
[2023-11-19 08:01:55,321 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:55,325 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30
[2023-11-19 08:01:55,328 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:55,330 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36
[2023-11-19 08:01:55,334 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:55,348 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58
[2023-11-19 08:01:55,350 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:55,365 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63
[2023-11-19 08:01:55,366 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:55,368 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72
[2023-11-19 08:01:55,369 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:55,371 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80
[2023-11-19 08:01:55,373 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:55,374 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2023-11-19 08:01:55,376 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:55,378 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97
[2023-11-19 08:01:55,380 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:55,382 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103
[2023-11-19 08:01:55,383 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:55,385 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110
[2023-11-19 08:01:55,386 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:55,388 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117
[2023-11-19 08:01:55,389 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:55,391 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123
[2023-11-19 08:01:55,393 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:55,395 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129
[2023-11-19 08:01:55,397 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:55,427 INFO  L134       CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked.
[2023-11-19 08:01:55,428 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 08:01:55,428 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231315412]
[2023-11-19 08:01:55,428 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231315412] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-19 08:01:55,428 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1214621793]
[2023-11-19 08:01:55,428 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:01:55,428 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 08:01:55,429 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe48bcd-3e01-43f8-ae0f-ab416b85e363/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:01:55,430 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe48bcd-3e01-43f8-ae0f-ab416b85e363/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-19 08:01:55,451 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe48bcd-3e01-43f8-ae0f-ab416b85e363/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2023-11-19 08:01:55,823 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:55,829 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1206 conjuncts, 8 conjunts are in the unsatisfiable core
[2023-11-19 08:01:55,835 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 08:01:55,912 INFO  L134       CoverageAnalysis]: Checked inductivity of 38 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked.
[2023-11-19 08:01:55,913 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 08:01:55,913 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1214621793] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 08:01:55,913 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-11-19 08:01:55,913 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12
[2023-11-19 08:01:55,913 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657629997]
[2023-11-19 08:01:55,913 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 08:01:55,914 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-19 08:01:55,914 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 08:01:55,915 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-19 08:01:55,915 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132
[2023-11-19 08:01:55,916 INFO  L87              Difference]: Start difference. First operand 442 states and 664 transitions. Second operand  has 5 states, 4 states have (on average 22.0) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17)
[2023-11-19 08:01:56,004 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 08:01:56,004 INFO  L93              Difference]: Finished difference Result 875 states and 1318 transitions.
[2023-11-19 08:01:56,005 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-19 08:01:56,005 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 4 states have (on average 22.0) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 137
[2023-11-19 08:01:56,005 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 08:01:56,010 INFO  L225             Difference]: With dead ends: 875
[2023-11-19 08:01:56,010 INFO  L226             Difference]: Without dead ends: 444
[2023-11-19 08:01:56,012 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156
[2023-11-19 08:01:56,013 INFO  L413           NwaCegarLoop]: 561 mSDtfsCounter, 8 mSDsluCounter, 1672 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2233 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-19 08:01:56,014 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2233 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-19 08:01:56,020 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 444 states.
[2023-11-19 08:01:56,043 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 444.
[2023-11-19 08:01:56,045 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 444 states, 342 states have (on average 1.5029239766081872) internal successors, (514), 346 states have internal predecessors, (514), 76 states have call successors, (76), 24 states have call predecessors, (76), 25 states have return successors, (77), 75 states have call predecessors, (77), 75 states have call successors, (77)
[2023-11-19 08:01:56,050 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 667 transitions.
[2023-11-19 08:01:56,050 INFO  L78                 Accepts]: Start accepts. Automaton has 444 states and 667 transitions. Word has length 137
[2023-11-19 08:01:56,051 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-19 08:01:56,051 INFO  L495      AbstractCegarLoop]: Abstraction has 444 states and 667 transitions.
[2023-11-19 08:01:56,051 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 4 states have (on average 22.0) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17)
[2023-11-19 08:01:56,051 INFO  L276                IsEmpty]: Start isEmpty. Operand 444 states and 667 transitions.
[2023-11-19 08:01:56,055 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 139
[2023-11-19 08:01:56,055 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-19 08:01:56,056 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 08:01:56,084 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe48bcd-3e01-43f8-ae0f-ab416b85e363/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2023-11-19 08:01:56,279 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe48bcd-3e01-43f8-ae0f-ab416b85e363/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 08:01:56,280 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-19 08:01:56,280 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:01:56,280 INFO  L85        PathProgramCache]: Analyzing trace with hash -1744171678, now seen corresponding path program 1 times
[2023-11-19 08:01:56,280 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 08:01:56,280 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053930025]
[2023-11-19 08:01:56,280 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:01:56,281 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 08:01:56,319 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:56,495 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2023-11-19 08:01:56,497 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:56,509 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2023-11-19 08:01:56,511 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:56,513 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2023-11-19 08:01:56,546 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:56,577 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25
[2023-11-19 08:01:56,580 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:56,610 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31
[2023-11-19 08:01:56,612 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:56,615 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2023-11-19 08:01:56,617 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:56,634 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59
[2023-11-19 08:01:56,636 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:56,652 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64
[2023-11-19 08:01:56,654 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:56,656 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73
[2023-11-19 08:01:56,660 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:56,661 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81
[2023-11-19 08:01:56,663 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:56,664 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2023-11-19 08:01:56,666 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:56,668 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98
[2023-11-19 08:01:56,671 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:56,672 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2023-11-19 08:01:56,674 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:56,676 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111
[2023-11-19 08:01:56,677 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:56,679 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118
[2023-11-19 08:01:56,680 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:56,682 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124
[2023-11-19 08:01:56,685 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:56,686 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130
[2023-11-19 08:01:56,688 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:56,691 INFO  L134       CoverageAnalysis]: Checked inductivity of 38 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked.
[2023-11-19 08:01:56,691 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 08:01:56,692 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053930025]
[2023-11-19 08:01:56,692 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053930025] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-19 08:01:56,692 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [78128938]
[2023-11-19 08:01:56,692 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:01:56,692 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 08:01:56,693 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe48bcd-3e01-43f8-ae0f-ab416b85e363/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:01:56,696 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe48bcd-3e01-43f8-ae0f-ab416b85e363/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-19 08:01:56,698 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe48bcd-3e01-43f8-ae0f-ab416b85e363/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2023-11-19 08:01:57,073 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:57,079 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1207 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-11-19 08:01:57,088 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 08:01:57,183 INFO  L134       CoverageAnalysis]: Checked inductivity of 38 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked.
[2023-11-19 08:01:57,183 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-19 08:01:57,183 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [78128938] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 08:01:57,183 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-11-19 08:01:57,184 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15
[2023-11-19 08:01:57,184 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063897999]
[2023-11-19 08:01:57,184 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 08:01:57,185 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-19 08:01:57,185 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 08:01:57,186 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-19 08:01:57,187 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210
[2023-11-19 08:01:57,187 INFO  L87              Difference]: Start difference. First operand 444 states and 667 transitions. Second operand  has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17)
[2023-11-19 08:01:57,303 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 08:01:57,303 INFO  L93              Difference]: Finished difference Result 877 states and 1323 transitions.
[2023-11-19 08:01:57,304 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-19 08:01:57,304 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 138
[2023-11-19 08:01:57,305 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 08:01:57,309 INFO  L225             Difference]: With dead ends: 877
[2023-11-19 08:01:57,310 INFO  L226             Difference]: Without dead ends: 446
[2023-11-19 08:01:57,312 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240
[2023-11-19 08:01:57,314 INFO  L413           NwaCegarLoop]: 559 mSDtfsCounter, 8 mSDsluCounter, 1660 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2219 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-19 08:01:57,317 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2219 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-19 08:01:57,319 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 446 states.
[2023-11-19 08:01:57,355 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 446.
[2023-11-19 08:01:57,356 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 446 states, 343 states have (on average 1.501457725947522) internal successors, (515), 348 states have internal predecessors, (515), 76 states have call successors, (76), 24 states have call predecessors, (76), 26 states have return successors, (82), 75 states have call predecessors, (82), 75 states have call successors, (82)
[2023-11-19 08:01:57,364 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 673 transitions.
[2023-11-19 08:01:57,365 INFO  L78                 Accepts]: Start accepts. Automaton has 446 states and 673 transitions. Word has length 138
[2023-11-19 08:01:57,365 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-19 08:01:57,366 INFO  L495      AbstractCegarLoop]: Abstraction has 446 states and 673 transitions.
[2023-11-19 08:01:57,366 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17)
[2023-11-19 08:01:57,366 INFO  L276                IsEmpty]: Start isEmpty. Operand 446 states and 673 transitions.
[2023-11-19 08:01:57,370 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 140
[2023-11-19 08:01:57,370 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-19 08:01:57,370 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 08:01:57,401 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe48bcd-3e01-43f8-ae0f-ab416b85e363/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2023-11-19 08:01:57,583 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe48bcd-3e01-43f8-ae0f-ab416b85e363/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 08:01:57,584 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-19 08:01:57,584 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:01:57,584 INFO  L85        PathProgramCache]: Analyzing trace with hash 2120382922, now seen corresponding path program 1 times
[2023-11-19 08:01:57,585 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 08:01:57,585 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101107692]
[2023-11-19 08:01:57,585 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:01:57,585 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 08:01:57,624 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:57,828 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2023-11-19 08:01:57,830 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:57,841 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2023-11-19 08:01:57,843 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:57,845 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2023-11-19 08:01:57,847 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:57,849 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25
[2023-11-19 08:01:57,851 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:57,854 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2023-11-19 08:01:57,856 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:57,879 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38
[2023-11-19 08:01:57,881 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:57,894 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60
[2023-11-19 08:01:57,896 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:57,909 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65
[2023-11-19 08:01:57,911 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:57,913 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74
[2023-11-19 08:01:57,914 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:57,916 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82
[2023-11-19 08:01:57,917 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:57,919 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88
[2023-11-19 08:01:57,921 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:57,922 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2023-11-19 08:01:57,924 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:57,926 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105
[2023-11-19 08:01:57,927 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:57,929 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112
[2023-11-19 08:01:57,930 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:57,932 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119
[2023-11-19 08:01:57,933 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:57,935 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125
[2023-11-19 08:01:57,936 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:57,937 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131
[2023-11-19 08:01:57,939 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:01:57,941 INFO  L134       CoverageAnalysis]: Checked inductivity of 38 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked.
[2023-11-19 08:01:57,942 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 08:01:57,942 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101107692]
[2023-11-19 08:01:57,942 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101107692] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 08:01:57,942 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 08:01:57,942 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2023-11-19 08:01:57,943 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289942291]
[2023-11-19 08:01:57,943 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 08:01:57,943 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2023-11-19 08:01:57,944 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 08:01:57,944 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2023-11-19 08:01:57,945 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72
[2023-11-19 08:01:57,945 INFO  L87              Difference]: Start difference. First operand 446 states and 673 transitions. Second operand  has 9 states, 8 states have (on average 10.75) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17)
[2023-11-19 08:02:01,722 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 08:02:01,722 INFO  L93              Difference]: Finished difference Result 1088 states and 1651 transitions.
[2023-11-19 08:02:01,722 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2023-11-19 08:02:01,723 INFO  L78                 Accepts]: Start accepts. Automaton has  has 9 states, 8 states have (on average 10.75) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 139
[2023-11-19 08:02:01,723 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 08:02:01,732 INFO  L225             Difference]: With dead ends: 1088
[2023-11-19 08:02:01,733 INFO  L226             Difference]: Without dead ends: 665
[2023-11-19 08:02:01,736 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272
[2023-11-19 08:02:01,738 INFO  L413           NwaCegarLoop]: 182 mSDtfsCounter, 1284 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 3213 mSolverCounterSat, 437 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1285 SdHoareTripleChecker+Valid, 1167 SdHoareTripleChecker+Invalid, 3650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 437 IncrementalHoareTripleChecker+Valid, 3213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time
[2023-11-19 08:02:01,738 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1285 Valid, 1167 Invalid, 3650 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [437 Valid, 3213 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time]
[2023-11-19 08:02:01,742 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 665 states.
[2023-11-19 08:02:01,816 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 446.
[2023-11-19 08:02:01,817 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 446 states, 343 states have (on average 1.501457725947522) internal successors, (515), 348 states have internal predecessors, (515), 76 states have call successors, (76), 24 states have call predecessors, (76), 26 states have return successors, (81), 75 states have call predecessors, (81), 75 states have call successors, (81)
[2023-11-19 08:02:01,822 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 672 transitions.
[2023-11-19 08:02:01,822 INFO  L78                 Accepts]: Start accepts. Automaton has 446 states and 672 transitions. Word has length 139
[2023-11-19 08:02:01,824 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-19 08:02:01,824 INFO  L495      AbstractCegarLoop]: Abstraction has 446 states and 672 transitions.
[2023-11-19 08:02:01,824 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 8 states have (on average 10.75) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17)
[2023-11-19 08:02:01,824 INFO  L276                IsEmpty]: Start isEmpty. Operand 446 states and 672 transitions.
[2023-11-19 08:02:01,829 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 141
[2023-11-19 08:02:01,829 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-19 08:02:01,829 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 08:02:01,830 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2023-11-19 08:02:01,830 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-19 08:02:01,830 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:02:01,830 INFO  L85        PathProgramCache]: Analyzing trace with hash -1634749281, now seen corresponding path program 2 times
[2023-11-19 08:02:01,831 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 08:02:01,831 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513816693]
[2023-11-19 08:02:01,831 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:02:01,831 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 08:02:01,880 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:02,108 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2023-11-19 08:02:02,110 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:02,122 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2023-11-19 08:02:02,124 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:02,126 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2023-11-19 08:02:02,128 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:02,130 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25
[2023-11-19 08:02:02,133 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:02,135 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2023-11-19 08:02:02,138 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:02,167 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39
[2023-11-19 08:02:02,171 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:02,183 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61
[2023-11-19 08:02:02,184 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:02,197 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66
[2023-11-19 08:02:02,202 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:02,203 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75
[2023-11-19 08:02:02,205 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:02,206 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2023-11-19 08:02:02,208 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:02,209 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2023-11-19 08:02:02,211 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:02,214 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2023-11-19 08:02:02,216 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:02,222 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106
[2023-11-19 08:02:02,223 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:02,230 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113
[2023-11-19 08:02:02,233 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:02,234 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120
[2023-11-19 08:02:02,236 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:02,237 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126
[2023-11-19 08:02:02,239 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:02,240 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132
[2023-11-19 08:02:02,242 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:02,245 INFO  L134       CoverageAnalysis]: Checked inductivity of 39 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked.
[2023-11-19 08:02:02,246 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 08:02:02,246 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513816693]
[2023-11-19 08:02:02,246 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513816693] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 08:02:02,246 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 08:02:02,246 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2023-11-19 08:02:02,247 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936111008]
[2023-11-19 08:02:02,247 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 08:02:02,248 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2023-11-19 08:02:02,248 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 08:02:02,249 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2023-11-19 08:02:02,249 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72
[2023-11-19 08:02:02,250 INFO  L87              Difference]: Start difference. First operand 446 states and 672 transitions. Second operand  has 9 states, 8 states have (on average 10.875) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17)
[2023-11-19 08:02:05,953 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 08:02:05,953 INFO  L93              Difference]: Finished difference Result 1090 states and 1654 transitions.
[2023-11-19 08:02:05,954 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2023-11-19 08:02:05,954 INFO  L78                 Accepts]: Start accepts. Automaton has  has 9 states, 8 states have (on average 10.875) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 140
[2023-11-19 08:02:05,956 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 08:02:05,963 INFO  L225             Difference]: With dead ends: 1090
[2023-11-19 08:02:05,964 INFO  L226             Difference]: Without dead ends: 667
[2023-11-19 08:02:05,967 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272
[2023-11-19 08:02:05,968 INFO  L413           NwaCegarLoop]: 182 mSDtfsCounter, 1279 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 3216 mSolverCounterSat, 438 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1281 SdHoareTripleChecker+Valid, 1167 SdHoareTripleChecker+Invalid, 3654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 438 IncrementalHoareTripleChecker+Valid, 3216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time
[2023-11-19 08:02:05,969 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1281 Valid, 1167 Invalid, 3654 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [438 Valid, 3216 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time]
[2023-11-19 08:02:05,971 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 667 states.
[2023-11-19 08:02:06,035 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 448.
[2023-11-19 08:02:06,037 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 448 states, 344 states have (on average 1.5) internal successors, (516), 350 states have internal predecessors, (516), 76 states have call successors, (76), 24 states have call predecessors, (76), 27 states have return successors, (83), 75 states have call predecessors, (83), 75 states have call successors, (83)
[2023-11-19 08:02:06,041 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 675 transitions.
[2023-11-19 08:02:06,042 INFO  L78                 Accepts]: Start accepts. Automaton has 448 states and 675 transitions. Word has length 140
[2023-11-19 08:02:06,042 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-19 08:02:06,042 INFO  L495      AbstractCegarLoop]: Abstraction has 448 states and 675 transitions.
[2023-11-19 08:02:06,043 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 8 states have (on average 10.875) internal successors, (87), 5 states have internal predecessors, (87), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17)
[2023-11-19 08:02:06,043 INFO  L276                IsEmpty]: Start isEmpty. Operand 448 states and 675 transitions.
[2023-11-19 08:02:06,047 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 142
[2023-11-19 08:02:06,047 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-19 08:02:06,048 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 08:02:06,048 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2023-11-19 08:02:06,048 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-19 08:02:06,049 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:02:06,049 INFO  L85        PathProgramCache]: Analyzing trace with hash -1665185423, now seen corresponding path program 1 times
[2023-11-19 08:02:06,049 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 08:02:06,049 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490006559]
[2023-11-19 08:02:06,050 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:02:06,050 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 08:02:06,081 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:06,265 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2023-11-19 08:02:06,267 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:06,279 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2023-11-19 08:02:06,281 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:06,283 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2023-11-19 08:02:06,285 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:06,287 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25
[2023-11-19 08:02:06,289 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:06,291 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2023-11-19 08:02:06,294 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:06,319 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40
[2023-11-19 08:02:06,321 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:06,332 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62
[2023-11-19 08:02:06,334 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:06,346 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67
[2023-11-19 08:02:06,347 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:06,349 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76
[2023-11-19 08:02:06,351 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:06,354 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2023-11-19 08:02:06,355 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:06,356 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90
[2023-11-19 08:02:06,358 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:06,359 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101
[2023-11-19 08:02:06,361 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:06,362 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107
[2023-11-19 08:02:06,363 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:06,365 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114
[2023-11-19 08:02:06,366 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:06,370 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2023-11-19 08:02:06,371 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:06,373 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127
[2023-11-19 08:02:06,374 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:06,376 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133
[2023-11-19 08:02:06,377 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:06,381 INFO  L134       CoverageAnalysis]: Checked inductivity of 39 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked.
[2023-11-19 08:02:06,381 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 08:02:06,381 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490006559]
[2023-11-19 08:02:06,382 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490006559] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 08:02:06,382 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 08:02:06,382 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2023-11-19 08:02:06,382 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897394290]
[2023-11-19 08:02:06,382 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 08:02:06,383 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2023-11-19 08:02:06,383 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 08:02:06,384 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2023-11-19 08:02:06,384 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72
[2023-11-19 08:02:06,385 INFO  L87              Difference]: Start difference. First operand 448 states and 675 transitions. Second operand  has 9 states, 8 states have (on average 11.0) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17)
[2023-11-19 08:02:10,064 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 08:02:10,064 INFO  L93              Difference]: Finished difference Result 1090 states and 1653 transitions.
[2023-11-19 08:02:10,064 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2023-11-19 08:02:10,064 INFO  L78                 Accepts]: Start accepts. Automaton has  has 9 states, 8 states have (on average 11.0) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 141
[2023-11-19 08:02:10,065 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 08:02:10,071 INFO  L225             Difference]: With dead ends: 1090
[2023-11-19 08:02:10,071 INFO  L226             Difference]: Without dead ends: 667
[2023-11-19 08:02:10,074 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306
[2023-11-19 08:02:10,075 INFO  L413           NwaCegarLoop]: 182 mSDtfsCounter, 1282 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 3197 mSolverCounterSat, 440 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1283 SdHoareTripleChecker+Valid, 1167 SdHoareTripleChecker+Invalid, 3637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 440 IncrementalHoareTripleChecker+Valid, 3197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time
[2023-11-19 08:02:10,075 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1283 Valid, 1167 Invalid, 3637 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [440 Valid, 3197 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time]
[2023-11-19 08:02:10,077 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 667 states.
[2023-11-19 08:02:10,121 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 448.
[2023-11-19 08:02:10,122 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 448 states, 344 states have (on average 1.5) internal successors, (516), 350 states have internal predecessors, (516), 76 states have call successors, (76), 24 states have call predecessors, (76), 27 states have return successors, (83), 75 states have call predecessors, (83), 75 states have call successors, (83)
[2023-11-19 08:02:10,125 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 675 transitions.
[2023-11-19 08:02:10,126 INFO  L78                 Accepts]: Start accepts. Automaton has 448 states and 675 transitions. Word has length 141
[2023-11-19 08:02:10,126 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-19 08:02:10,126 INFO  L495      AbstractCegarLoop]: Abstraction has 448 states and 675 transitions.
[2023-11-19 08:02:10,127 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 8 states have (on average 11.0) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (19), 6 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17)
[2023-11-19 08:02:10,127 INFO  L276                IsEmpty]: Start isEmpty. Operand 448 states and 675 transitions.
[2023-11-19 08:02:10,130 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 142
[2023-11-19 08:02:10,130 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-19 08:02:10,131 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 08:02:10,131 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2023-11-19 08:02:10,131 INFO  L420      AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-19 08:02:10,132 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:02:10,132 INFO  L85        PathProgramCache]: Analyzing trace with hash -1783626897, now seen corresponding path program 1 times
[2023-11-19 08:02:10,132 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 08:02:10,132 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40781938]
[2023-11-19 08:02:10,132 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:02:10,133 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 08:02:10,164 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:10,319 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2023-11-19 08:02:10,321 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:10,331 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2023-11-19 08:02:10,333 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:10,335 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2023-11-19 08:02:10,337 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:10,338 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25
[2023-11-19 08:02:10,340 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:10,342 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2023-11-19 08:02:10,346 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:10,370 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40
[2023-11-19 08:02:10,372 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:10,424 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62
[2023-11-19 08:02:10,426 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:10,439 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67
[2023-11-19 08:02:10,440 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:10,441 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76
[2023-11-19 08:02:10,442 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:10,443 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2023-11-19 08:02:10,444 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:10,445 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90
[2023-11-19 08:02:10,446 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:10,449 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101
[2023-11-19 08:02:10,450 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:10,451 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107
[2023-11-19 08:02:10,453 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:10,455 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114
[2023-11-19 08:02:10,456 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:10,458 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2023-11-19 08:02:10,459 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:10,460 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127
[2023-11-19 08:02:10,461 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:10,462 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133
[2023-11-19 08:02:10,463 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:10,465 INFO  L134       CoverageAnalysis]: Checked inductivity of 39 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked.
[2023-11-19 08:02:10,465 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 08:02:10,466 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40781938]
[2023-11-19 08:02:10,466 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40781938] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 08:02:10,466 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 08:02:10,466 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12
[2023-11-19 08:02:10,466 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009281534]
[2023-11-19 08:02:10,466 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 08:02:10,467 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2023-11-19 08:02:10,467 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 08:02:10,468 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2023-11-19 08:02:10,468 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132
[2023-11-19 08:02:10,469 INFO  L87              Difference]: Start difference. First operand 448 states and 675 transitions. Second operand  has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 8 states have internal predecessors, (91), 4 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17)
[2023-11-19 08:02:14,765 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 08:02:14,765 INFO  L93              Difference]: Finished difference Result 1088 states and 1648 transitions.
[2023-11-19 08:02:14,765 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2023-11-19 08:02:14,766 INFO  L78                 Accepts]: Start accepts. Automaton has  has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 8 states have internal predecessors, (91), 4 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 141
[2023-11-19 08:02:14,766 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 08:02:14,771 INFO  L225             Difference]: With dead ends: 1088
[2023-11-19 08:02:14,771 INFO  L226             Difference]: Without dead ends: 667
[2023-11-19 08:02:14,774 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552
[2023-11-19 08:02:14,774 INFO  L413           NwaCegarLoop]: 174 mSDtfsCounter, 1289 mSDsluCounter, 1438 mSDsCounter, 0 mSdLazyCounter, 5324 mSolverCounterSat, 442 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1290 SdHoareTripleChecker+Valid, 1612 SdHoareTripleChecker+Invalid, 5766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 442 IncrementalHoareTripleChecker+Valid, 5324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time
[2023-11-19 08:02:14,775 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1290 Valid, 1612 Invalid, 5766 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [442 Valid, 5324 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time]
[2023-11-19 08:02:14,776 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 667 states.
[2023-11-19 08:02:14,814 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 448.
[2023-11-19 08:02:14,815 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 448 states, 344 states have (on average 1.5) internal successors, (516), 350 states have internal predecessors, (516), 76 states have call successors, (76), 24 states have call predecessors, (76), 27 states have return successors, (82), 75 states have call predecessors, (82), 75 states have call successors, (82)
[2023-11-19 08:02:14,818 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 674 transitions.
[2023-11-19 08:02:14,818 INFO  L78                 Accepts]: Start accepts. Automaton has 448 states and 674 transitions. Word has length 141
[2023-11-19 08:02:14,819 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-19 08:02:14,819 INFO  L495      AbstractCegarLoop]: Abstraction has 448 states and 674 transitions.
[2023-11-19 08:02:14,819 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 12 states, 11 states have (on average 8.272727272727273) internal successors, (91), 8 states have internal predecessors, (91), 4 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17)
[2023-11-19 08:02:14,819 INFO  L276                IsEmpty]: Start isEmpty. Operand 448 states and 674 transitions.
[2023-11-19 08:02:14,822 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 143
[2023-11-19 08:02:14,822 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-19 08:02:14,822 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 08:02:14,823 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2023-11-19 08:02:14,823 INFO  L420      AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-19 08:02:14,823 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:02:14,823 INFO  L85        PathProgramCache]: Analyzing trace with hash -8261163, now seen corresponding path program 2 times
[2023-11-19 08:02:14,823 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 08:02:14,824 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178959588]
[2023-11-19 08:02:14,824 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:02:14,824 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 08:02:14,848 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:14,995 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2023-11-19 08:02:14,997 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:15,007 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2023-11-19 08:02:15,009 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:15,010 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2023-11-19 08:02:15,012 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:15,014 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25
[2023-11-19 08:02:15,016 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:15,018 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2023-11-19 08:02:15,024 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:15,049 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40
[2023-11-19 08:02:15,051 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:15,089 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63
[2023-11-19 08:02:15,090 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:15,106 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68
[2023-11-19 08:02:15,107 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:15,108 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77
[2023-11-19 08:02:15,109 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:15,111 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85
[2023-11-19 08:02:15,112 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:15,113 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91
[2023-11-19 08:02:15,114 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:15,115 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102
[2023-11-19 08:02:15,116 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:15,118 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108
[2023-11-19 08:02:15,119 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:15,120 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115
[2023-11-19 08:02:15,121 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:15,123 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122
[2023-11-19 08:02:15,124 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:15,125 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128
[2023-11-19 08:02:15,126 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:15,127 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134
[2023-11-19 08:02:15,129 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:15,130 INFO  L134       CoverageAnalysis]: Checked inductivity of 40 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked.
[2023-11-19 08:02:15,130 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 08:02:15,131 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178959588]
[2023-11-19 08:02:15,131 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178959588] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 08:02:15,131 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 08:02:15,131 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12
[2023-11-19 08:02:15,131 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195221633]
[2023-11-19 08:02:15,132 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 08:02:15,132 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2023-11-19 08:02:15,132 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 08:02:15,133 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2023-11-19 08:02:15,133 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132
[2023-11-19 08:02:15,133 INFO  L87              Difference]: Start difference. First operand 448 states and 674 transitions. Second operand  has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 8 states have internal predecessors, (92), 4 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17)
[2023-11-19 08:02:19,140 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 08:02:19,140 INFO  L93              Difference]: Finished difference Result 1090 states and 1654 transitions.
[2023-11-19 08:02:19,141 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2023-11-19 08:02:19,141 INFO  L78                 Accepts]: Start accepts. Automaton has  has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 8 states have internal predecessors, (92), 4 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 142
[2023-11-19 08:02:19,141 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 08:02:19,146 INFO  L225             Difference]: With dead ends: 1090
[2023-11-19 08:02:19,146 INFO  L226             Difference]: Without dead ends: 669
[2023-11-19 08:02:19,149 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552
[2023-11-19 08:02:19,150 INFO  L413           NwaCegarLoop]: 174 mSDtfsCounter, 1284 mSDsluCounter, 1438 mSDsCounter, 0 mSdLazyCounter, 5369 mSolverCounterSat, 438 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1285 SdHoareTripleChecker+Valid, 1612 SdHoareTripleChecker+Invalid, 5807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 438 IncrementalHoareTripleChecker+Valid, 5369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time
[2023-11-19 08:02:19,150 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1285 Valid, 1612 Invalid, 5807 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [438 Valid, 5369 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time]
[2023-11-19 08:02:19,152 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 669 states.
[2023-11-19 08:02:19,191 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 450.
[2023-11-19 08:02:19,193 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 450 states, 345 states have (on average 1.4985507246376812) internal successors, (517), 352 states have internal predecessors, (517), 76 states have call successors, (76), 24 states have call predecessors, (76), 28 states have return successors, (87), 75 states have call predecessors, (87), 75 states have call successors, (87)
[2023-11-19 08:02:19,195 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 680 transitions.
[2023-11-19 08:02:19,196 INFO  L78                 Accepts]: Start accepts. Automaton has 450 states and 680 transitions. Word has length 142
[2023-11-19 08:02:19,196 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-19 08:02:19,196 INFO  L495      AbstractCegarLoop]: Abstraction has 450 states and 680 transitions.
[2023-11-19 08:02:19,197 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 8 states have internal predecessors, (92), 4 states have call successors, (19), 6 states have call predecessors, (19), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17)
[2023-11-19 08:02:19,197 INFO  L276                IsEmpty]: Start isEmpty. Operand 450 states and 680 transitions.
[2023-11-19 08:02:19,199 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 144
[2023-11-19 08:02:19,200 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-19 08:02:19,200 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 08:02:19,200 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2023-11-19 08:02:19,200 INFO  L420      AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-19 08:02:19,201 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:02:19,201 INFO  L85        PathProgramCache]: Analyzing trace with hash 1771103988, now seen corresponding path program 1 times
[2023-11-19 08:02:19,201 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 08:02:19,201 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537948475]
[2023-11-19 08:02:19,201 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:02:19,202 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 08:02:19,228 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:19,387 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2023-11-19 08:02:19,388 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:19,398 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2023-11-19 08:02:19,400 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:19,401 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2023-11-19 08:02:19,403 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:19,446 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25
[2023-11-19 08:02:19,450 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:19,452 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2023-11-19 08:02:19,454 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:19,456 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40
[2023-11-19 08:02:19,458 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:19,475 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64
[2023-11-19 08:02:19,476 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:19,488 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69
[2023-11-19 08:02:19,489 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:19,490 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78
[2023-11-19 08:02:19,491 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:19,492 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2023-11-19 08:02:19,493 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:19,494 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92
[2023-11-19 08:02:19,495 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:19,497 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103
[2023-11-19 08:02:19,498 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:19,499 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109
[2023-11-19 08:02:19,500 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:19,502 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116
[2023-11-19 08:02:19,503 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:19,504 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123
[2023-11-19 08:02:19,505 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:19,506 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129
[2023-11-19 08:02:19,507 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:19,508 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135
[2023-11-19 08:02:19,509 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:19,511 INFO  L134       CoverageAnalysis]: Checked inductivity of 40 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked.
[2023-11-19 08:02:19,511 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 08:02:19,511 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537948475]
[2023-11-19 08:02:19,511 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537948475] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-19 08:02:19,512 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2051815173]
[2023-11-19 08:02:19,512 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:02:19,512 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 08:02:19,512 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe48bcd-3e01-43f8-ae0f-ab416b85e363/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 08:02:19,516 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe48bcd-3e01-43f8-ae0f-ab416b85e363/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-19 08:02:19,532 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe48bcd-3e01-43f8-ae0f-ab416b85e363/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2023-11-19 08:02:19,853 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:19,857 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1212 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-11-19 08:02:19,862 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-19 08:02:19,911 INFO  L134       CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked.
[2023-11-19 08:02:19,911 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-11-19 08:02:20,031 INFO  L134       CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked.
[2023-11-19 08:02:20,032 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [2051815173] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-19 08:02:20,032 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-11-19 08:02:20,032 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15
[2023-11-19 08:02:20,032 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618062672]
[2023-11-19 08:02:20,033 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-11-19 08:02:20,033 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 15 states
[2023-11-19 08:02:20,034 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 08:02:20,034 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2023-11-19 08:02:20,035 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210
[2023-11-19 08:02:20,035 INFO  L87              Difference]: Start difference. First operand 450 states and 680 transitions. Second operand  has 15 states, 14 states have (on average 10.857142857142858) internal successors, (152), 11 states have internal predecessors, (152), 4 states have call successors, (39), 6 states have call predecessors, (39), 3 states have return successors, (32), 3 states have call predecessors, (32), 4 states have call successors, (32)
[2023-11-19 08:02:24,388 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 08:02:24,388 INFO  L93              Difference]: Finished difference Result 1465 states and 2326 transitions.
[2023-11-19 08:02:24,388 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. 
[2023-11-19 08:02:24,389 INFO  L78                 Accepts]: Start accepts. Automaton has  has 15 states, 14 states have (on average 10.857142857142858) internal successors, (152), 11 states have internal predecessors, (152), 4 states have call successors, (39), 6 states have call predecessors, (39), 3 states have return successors, (32), 3 states have call predecessors, (32), 4 states have call successors, (32) Word has length 143
[2023-11-19 08:02:24,389 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 08:02:24,398 INFO  L225             Difference]: With dead ends: 1465
[2023-11-19 08:02:24,398 INFO  L226             Difference]: Without dead ends: 1046
[2023-11-19 08:02:24,403 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=165, Invalid=827, Unknown=0, NotChecked=0, Total=992
[2023-11-19 08:02:24,404 INFO  L413           NwaCegarLoop]: 184 mSDtfsCounter, 2502 mSDsluCounter, 1719 mSDsCounter, 0 mSdLazyCounter, 5817 mSolverCounterSat, 771 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2519 SdHoareTripleChecker+Valid, 1903 SdHoareTripleChecker+Invalid, 6588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 771 IncrementalHoareTripleChecker+Valid, 5817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time
[2023-11-19 08:02:24,404 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2519 Valid, 1903 Invalid, 6588 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [771 Valid, 5817 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time]
[2023-11-19 08:02:24,406 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1046 states.
[2023-11-19 08:02:24,472 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 803.
[2023-11-19 08:02:24,474 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 803 states, 634 states have (on average 1.5583596214511042) internal successors, (988), 641 states have internal predecessors, (988), 140 states have call successors, (140), 24 states have call predecessors, (140), 28 states have return successors, (161), 139 states have call predecessors, (161), 139 states have call successors, (161)
[2023-11-19 08:02:24,479 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1289 transitions.
[2023-11-19 08:02:24,479 INFO  L78                 Accepts]: Start accepts. Automaton has 803 states and 1289 transitions. Word has length 143
[2023-11-19 08:02:24,479 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-19 08:02:24,479 INFO  L495      AbstractCegarLoop]: Abstraction has 803 states and 1289 transitions.
[2023-11-19 08:02:24,480 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 15 states, 14 states have (on average 10.857142857142858) internal successors, (152), 11 states have internal predecessors, (152), 4 states have call successors, (39), 6 states have call predecessors, (39), 3 states have return successors, (32), 3 states have call predecessors, (32), 4 states have call successors, (32)
[2023-11-19 08:02:24,480 INFO  L276                IsEmpty]: Start isEmpty. Operand 803 states and 1289 transitions.
[2023-11-19 08:02:24,485 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 147
[2023-11-19 08:02:24,485 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-19 08:02:24,486 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 08:02:24,511 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe48bcd-3e01-43f8-ae0f-ab416b85e363/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0
[2023-11-19 08:02:24,701 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afe48bcd-3e01-43f8-ae0f-ab416b85e363/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-19 08:02:24,701 INFO  L420      AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-19 08:02:24,701 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:02:24,702 INFO  L85        PathProgramCache]: Analyzing trace with hash 1855806362, now seen corresponding path program 1 times
[2023-11-19 08:02:24,702 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 08:02:24,702 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366782740]
[2023-11-19 08:02:24,702 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:02:24,702 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 08:02:24,734 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:24,873 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2023-11-19 08:02:24,875 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:24,884 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2023-11-19 08:02:24,886 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:24,888 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2023-11-19 08:02:24,889 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:24,890 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25
[2023-11-19 08:02:24,892 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:24,894 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2023-11-19 08:02:24,895 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:24,897 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40
[2023-11-19 08:02:24,899 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:24,910 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67
[2023-11-19 08:02:24,912 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:24,923 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72
[2023-11-19 08:02:24,924 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:24,926 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81
[2023-11-19 08:02:24,927 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:24,930 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2023-11-19 08:02:24,932 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:24,935 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95
[2023-11-19 08:02:24,936 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:24,938 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106
[2023-11-19 08:02:24,939 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:24,940 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112
[2023-11-19 08:02:24,941 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:24,943 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119
[2023-11-19 08:02:24,944 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:24,949 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126
[2023-11-19 08:02:24,950 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:24,951 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132
[2023-11-19 08:02:24,952 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:24,954 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138
[2023-11-19 08:02:24,955 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:24,957 INFO  L134       CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked.
[2023-11-19 08:02:24,958 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 08:02:24,958 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366782740]
[2023-11-19 08:02:24,958 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366782740] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 08:02:24,958 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 08:02:24,958 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-11-19 08:02:24,958 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761426882]
[2023-11-19 08:02:24,959 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 08:02:24,959 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-11-19 08:02:24,959 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 08:02:24,960 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-11-19 08:02:24,960 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-11-19 08:02:24,961 INFO  L87              Difference]: Start difference. First operand 803 states and 1289 transitions. Second operand  has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17)
[2023-11-19 08:02:27,162 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 08:02:27,162 INFO  L93              Difference]: Finished difference Result 2080 states and 3405 transitions.
[2023-11-19 08:02:27,163 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2023-11-19 08:02:27,163 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 146
[2023-11-19 08:02:27,163 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 08:02:27,174 INFO  L225             Difference]: With dead ends: 2080
[2023-11-19 08:02:27,174 INFO  L226             Difference]: Without dead ends: 1355
[2023-11-19 08:02:27,178 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156
[2023-11-19 08:02:27,178 INFO  L413           NwaCegarLoop]: 199 mSDtfsCounter, 1385 mSDsluCounter, 684 mSDsCounter, 0 mSdLazyCounter, 1840 mSolverCounterSat, 494 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1400 SdHoareTripleChecker+Valid, 883 SdHoareTripleChecker+Invalid, 2334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 494 IncrementalHoareTripleChecker+Valid, 1840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time
[2023-11-19 08:02:27,179 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1400 Valid, 883 Invalid, 2334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [494 Valid, 1840 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time]
[2023-11-19 08:02:27,181 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1355 states.
[2023-11-19 08:02:27,259 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1355 to 1128.
[2023-11-19 08:02:27,261 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1128 states, 895 states have (on average 1.5787709497206703) internal successors, (1413), 902 states have internal predecessors, (1413), 204 states have call successors, (204), 24 states have call predecessors, (204), 28 states have return successors, (235), 203 states have call predecessors, (235), 203 states have call successors, (235)
[2023-11-19 08:02:27,268 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1128 states to 1128 states and 1852 transitions.
[2023-11-19 08:02:27,269 INFO  L78                 Accepts]: Start accepts. Automaton has 1128 states and 1852 transitions. Word has length 146
[2023-11-19 08:02:27,269 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-19 08:02:27,269 INFO  L495      AbstractCegarLoop]: Abstraction has 1128 states and 1852 transitions.
[2023-11-19 08:02:27,269 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 13.0) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17)
[2023-11-19 08:02:27,269 INFO  L276                IsEmpty]: Start isEmpty. Operand 1128 states and 1852 transitions.
[2023-11-19 08:02:27,278 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 148
[2023-11-19 08:02:27,278 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-19 08:02:27,278 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 08:02:27,278 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2023-11-19 08:02:27,279 INFO  L420      AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-19 08:02:27,279 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:02:27,279 INFO  L85        PathProgramCache]: Analyzing trace with hash -995460552, now seen corresponding path program 1 times
[2023-11-19 08:02:27,279 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 08:02:27,280 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430915258]
[2023-11-19 08:02:27,280 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:02:27,280 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 08:02:27,308 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:27,363 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2023-11-19 08:02:27,365 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:27,373 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2023-11-19 08:02:27,375 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:27,377 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2023-11-19 08:02:27,379 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:27,380 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25
[2023-11-19 08:02:27,382 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:27,384 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2023-11-19 08:02:27,386 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:27,388 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40
[2023-11-19 08:02:27,390 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:27,399 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68
[2023-11-19 08:02:27,400 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:27,409 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73
[2023-11-19 08:02:27,410 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:27,411 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82
[2023-11-19 08:02:27,412 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:27,414 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90
[2023-11-19 08:02:27,415 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:27,416 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96
[2023-11-19 08:02:27,417 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:27,421 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107
[2023-11-19 08:02:27,422 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:27,424 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113
[2023-11-19 08:02:27,425 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:27,427 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120
[2023-11-19 08:02:27,428 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:27,429 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127
[2023-11-19 08:02:27,430 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:27,432 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133
[2023-11-19 08:02:27,433 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:27,436 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139
[2023-11-19 08:02:27,437 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:27,446 INFO  L134       CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked.
[2023-11-19 08:02:27,446 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 08:02:27,447 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430915258]
[2023-11-19 08:02:27,447 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430915258] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 08:02:27,447 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 08:02:27,447 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-11-19 08:02:27,447 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81474303]
[2023-11-19 08:02:27,447 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 08:02:27,448 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-11-19 08:02:27,449 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 08:02:27,449 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-11-19 08:02:27,450 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-11-19 08:02:27,450 INFO  L87              Difference]: Start difference. First operand 1128 states and 1852 transitions. Second operand  has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17)
[2023-11-19 08:02:29,656 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-19 08:02:29,657 INFO  L93              Difference]: Finished difference Result 2885 states and 4789 transitions.
[2023-11-19 08:02:29,659 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2023-11-19 08:02:29,659 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 147
[2023-11-19 08:02:29,659 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-19 08:02:29,674 INFO  L225             Difference]: With dead ends: 2885
[2023-11-19 08:02:29,674 INFO  L226             Difference]: Without dead ends: 1888
[2023-11-19 08:02:29,679 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156
[2023-11-19 08:02:29,679 INFO  L413           NwaCegarLoop]: 188 mSDtfsCounter, 1383 mSDsluCounter, 672 mSDsCounter, 0 mSdLazyCounter, 1823 mSolverCounterSat, 497 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1398 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 2320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 497 IncrementalHoareTripleChecker+Valid, 1823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time
[2023-11-19 08:02:29,680 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1398 Valid, 860 Invalid, 2320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [497 Valid, 1823 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time]
[2023-11-19 08:02:29,683 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1888 states.
[2023-11-19 08:02:29,792 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1888 to 1661.
[2023-11-19 08:02:29,795 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1661 states, 1333 states have (on average 1.5896474118529633) internal successors, (2119), 1340 states have internal predecessors, (2119), 299 states have call successors, (299), 24 states have call predecessors, (299), 28 states have return successors, (330), 298 states have call predecessors, (330), 298 states have call successors, (330)
[2023-11-19 08:02:29,802 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1661 states to 1661 states and 2748 transitions.
[2023-11-19 08:02:29,802 INFO  L78                 Accepts]: Start accepts. Automaton has 1661 states and 2748 transitions. Word has length 147
[2023-11-19 08:02:29,802 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-19 08:02:29,803 INFO  L495      AbstractCegarLoop]: Abstraction has 1661 states and 2748 transitions.
[2023-11-19 08:02:29,803 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 13.142857142857142) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17)
[2023-11-19 08:02:29,803 INFO  L276                IsEmpty]: Start isEmpty. Operand 1661 states and 2748 transitions.
[2023-11-19 08:02:29,815 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 149
[2023-11-19 08:02:29,815 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-19 08:02:29,815 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-19 08:02:29,816 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2023-11-19 08:02:29,816 INFO  L420      AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-19 08:02:29,816 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 08:02:29,816 INFO  L85        PathProgramCache]: Analyzing trace with hash -158490932, now seen corresponding path program 1 times
[2023-11-19 08:02:29,816 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 08:02:29,817 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131116343]
[2023-11-19 08:02:29,817 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 08:02:29,817 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 08:02:29,844 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:29,897 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2023-11-19 08:02:29,899 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:29,915 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12
[2023-11-19 08:02:29,916 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:29,918 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18
[2023-11-19 08:02:29,920 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:29,922 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25
[2023-11-19 08:02:29,924 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:29,926 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2023-11-19 08:02:29,928 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:29,930 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40
[2023-11-19 08:02:29,932 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:29,940 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69
[2023-11-19 08:02:29,941 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:29,958 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74
[2023-11-19 08:02:29,959 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:29,961 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2023-11-19 08:02:29,964 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:29,965 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91
[2023-11-19 08:02:29,967 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:29,968 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97
[2023-11-19 08:02:29,969 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:29,971 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108
[2023-11-19 08:02:29,972 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:29,973 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114
[2023-11-19 08:02:29,975 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:29,977 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2023-11-19 08:02:29,978 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:29,980 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128
[2023-11-19 08:02:29,984 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:29,986 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134
[2023-11-19 08:02:29,987 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:29,989 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140
[2023-11-19 08:02:29,990 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-19 08:02:29,993 INFO  L134       CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked.
[2023-11-19 08:02:29,993 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-19 08:02:29,993 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131116343]
[2023-11-19 08:02:29,993 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131116343] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-19 08:02:29,993 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-19 08:02:29,994 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-11-19 08:02:29,994 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136534734]
[2023-11-19 08:02:29,994 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-19 08:02:29,995 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-11-19 08:02:29,995 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-19 08:02:29,996 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-11-19 08:02:29,997 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-11-19 08:02:29,997 INFO  L87              Difference]: Start difference. First operand 1661 states and 2748 transitions. Second operand  has 7 states, 7 states have (on average 13.285714285714286) internal successors, (93), 3 states have internal predecessors, (93), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17)