./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec3_product33.cil.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 0e0057cc
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_ec58b1d0-261b-4a86-b740-4f810011007a/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec58b1d0-261b-4a86-b740-4f810011007a/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec58b1d0-261b-4a86-b740-4f810011007a/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec58b1d0-261b-4a86-b740-4f810011007a/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec3_product33.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec58b1d0-261b-4a86-b740-4f810011007a/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec58b1d0-261b-4a86-b740-4f810011007a/bin/uautomizer-verify-VRDe98Ueme --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 78f09f881cef26d11456f7baabcb58a727aa2f4d67cef56365b42a1e169c7203
--- Real Ultimate output ---
This is Ultimate 0.2.4-dev-0e0057c
[2023-11-26 11:59:37,208 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2023-11-26 11:59:37,328 INFO  L114        SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec58b1d0-261b-4a86-b740-4f810011007a/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf
[2023-11-26 11:59:37,333 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2023-11-26 11:59:37,333 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-26 11:59:37,358 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-26 11:59:37,358 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-26 11:59:37,359 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-26 11:59:37,360 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-11-26 11:59:37,361 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2023-11-26 11:59:37,361 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-26 11:59:37,362 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-26 11:59:37,363 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-26 11:59:37,363 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2023-11-26 11:59:37,364 INFO  L153        SettingsManager]:  * Use SBE=true
[2023-11-26 11:59:37,365 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-26 11:59:37,365 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2023-11-26 11:59:37,366 INFO  L153        SettingsManager]:  * sizeof long=4
[2023-11-26 11:59:37,367 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2023-11-26 11:59:37,367 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2023-11-26 11:59:37,368 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2023-11-26 11:59:37,369 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2023-11-26 11:59:37,369 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-26 11:59:37,370 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2023-11-26 11:59:37,371 INFO  L153        SettingsManager]:  * sizeof long double=12
[2023-11-26 11:59:37,371 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2023-11-26 11:59:37,372 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2023-11-26 11:59:37,373 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-26 11:59:37,373 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2023-11-26 11:59:37,374 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2023-11-26 11:59:37,374 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2023-11-26 11:59:37,375 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-11-26 11:59:37,375 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-26 11:59:37,376 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2023-11-26 11:59:37,376 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2023-11-26 11:59:37,377 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2023-11-26 11:59:37,378 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-26 11:59:37,378 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2023-11-26 11:59:37,378 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-26 11:59:37,379 INFO  L153        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-11-26 11:59:37,379 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2023-11-26 11:59:37,380 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-26 11:59:37,380 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_ec58b1d0-261b-4a86-b740-4f810011007a/bin/uautomizer-verify-VRDe98Ueme/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_ec58b1d0-261b-4a86-b740-4f810011007a/bin/uautomizer-verify-VRDe98Ueme
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 -> 78f09f881cef26d11456f7baabcb58a727aa2f4d67cef56365b42a1e169c7203
[2023-11-26 11:59:37,669 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-26 11:59:37,699 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-26 11:59:37,703 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-26 11:59:37,704 INFO  L270        PluginConnector]: Initializing CDTParser...
[2023-11-26 11:59:37,705 INFO  L274        PluginConnector]: CDTParser initialized
[2023-11-26 11:59:37,706 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec58b1d0-261b-4a86-b740-4f810011007a/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/product-lines/email_spec3_product33.cil.c
[2023-11-26 11:59:40,841 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2023-11-26 11:59:41,347 INFO  L384              CDTParser]: Found 1 translation units.
[2023-11-26 11:59:41,348 INFO  L180              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec58b1d0-261b-4a86-b740-4f810011007a/sv-benchmarks/c/product-lines/email_spec3_product33.cil.c
[2023-11-26 11:59:41,373 INFO  L427              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec58b1d0-261b-4a86-b740-4f810011007a/bin/uautomizer-verify-VRDe98Ueme/data/f513d4cc9/386b8f0a56974170bc62023c245f49bf/FLAG12a85fb6d
[2023-11-26 11:59:41,389 INFO  L435              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec58b1d0-261b-4a86-b740-4f810011007a/bin/uautomizer-verify-VRDe98Ueme/data/f513d4cc9/386b8f0a56974170bc62023c245f49bf
[2023-11-26 11:59:41,399 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-26 11:59:41,402 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-26 11:59:41,403 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-26 11:59:41,403 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-26 11:59:41,408 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-26 11:59:41,409 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:59:41" (1/1) ...
[2023-11-26 11:59:41,410 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54efe682 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:41, skipping insertion in model container
[2023-11-26 11:59:41,410 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:59:41" (1/1) ...
[2023-11-26 11:59:41,492 INFO  L177         MainTranslator]: Built tables and reachable declarations
[2023-11-26 11:59:42,154 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_ec58b1d0-261b-4a86-b740-4f810011007a/sv-benchmarks/c/product-lines/email_spec3_product33.cil.c[65706,65719]
[2023-11-26 11:59:42,159 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-26 11:59:42,189 INFO  L202         MainTranslator]: Completed pre-run
[2023-11-26 11:59:42,200 WARN  L75    lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48]
[2023-11-26 11:59:42,202 WARN  L75    lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [375]
[2023-11-26 11:59:42,202 WARN  L75    lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [787]
[2023-11-26 11:59:42,202 WARN  L75    lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1858]
[2023-11-26 11:59:42,203 WARN  L75    lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1893]
[2023-11-26 11:59:42,203 WARN  L75    lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2031]
[2023-11-26 11:59:42,203 WARN  L75    lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2397]
[2023-11-26 11:59:42,204 WARN  L75    lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2616]
[2023-11-26 11:59:42,205 WARN  L75    lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [3009]
[2023-11-26 11:59:42,205 WARN  L75    lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignVerify_spec.i","") [3026]
[2023-11-26 11:59:42,207 WARN  L75    lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3085]
[2023-11-26 11:59:42,390 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_ec58b1d0-261b-4a86-b740-4f810011007a/sv-benchmarks/c/product-lines/email_spec3_product33.cil.c[65706,65719]
[2023-11-26 11:59:42,391 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2023-11-26 11:59:42,423 WARN  L675               CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler.
[2023-11-26 11:59:42,435 INFO  L206         MainTranslator]: Completed translation
[2023-11-26 11:59:42,436 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:42 WrapperNode
[2023-11-26 11:59:42,436 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-26 11:59:42,437 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-26 11:59:42,438 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-26 11:59:42,438 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-26 11:59:42,446 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:42" (1/1) ...
[2023-11-26 11:59:42,521 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:42" (1/1) ...
[2023-11-26 11:59:42,588 INFO  L138                Inliner]: procedures = 135, calls = 237, calls flagged for inlining = 65, calls inlined = 60, statements flattened = 1128
[2023-11-26 11:59:42,589 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-26 11:59:42,590 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-26 11:59:42,590 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-26 11:59:42,590 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2023-11-26 11:59:42,603 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:42" (1/1) ...
[2023-11-26 11:59:42,613 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:42" (1/1) ...
[2023-11-26 11:59:42,625 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:42" (1/1) ...
[2023-11-26 11:59:42,667 INFO  L175           MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0].
[2023-11-26 11:59:42,667 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:42" (1/1) ...
[2023-11-26 11:59:42,668 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:42" (1/1) ...
[2023-11-26 11:59:42,703 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:42" (1/1) ...
[2023-11-26 11:59:42,713 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:42" (1/1) ...
[2023-11-26 11:59:42,735 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:42" (1/1) ...
[2023-11-26 11:59:42,741 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:42" (1/1) ...
[2023-11-26 11:59:42,763 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-26 11:59:42,764 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-26 11:59:42,765 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2023-11-26 11:59:42,767 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2023-11-26 11:59:42,768 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:42" (1/1) ...
[2023-11-26 11:59:42,775 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-11-26 11:59:42,788 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec58b1d0-261b-4a86-b740-4f810011007a/bin/uautomizer-verify-VRDe98Ueme/z3
[2023-11-26 11:59:42,804 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec58b1d0-261b-4a86-b740-4f810011007a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2023-11-26 11:59:42,839 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec58b1d0-261b-4a86-b740-4f810011007a/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2023-11-26 11:59:42,850 INFO  L130     BoogieDeclarations]: Found specification of procedure getClientPrivateKey
[2023-11-26 11:59:42,850 INFO  L138     BoogieDeclarations]: Found implementation of procedure getClientPrivateKey
[2023-11-26 11:59:42,851 INFO  L130     BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey
[2023-11-26 11:59:42,851 INFO  L138     BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey
[2023-11-26 11:59:42,851 INFO  L130     BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey
[2023-11-26 11:59:42,851 INFO  L138     BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey
[2023-11-26 11:59:42,852 INFO  L130     BoogieDeclarations]: Found specification of procedure getEmailTo
[2023-11-26 11:59:42,852 INFO  L138     BoogieDeclarations]: Found implementation of procedure getEmailTo
[2023-11-26 11:59:42,852 INFO  L130     BoogieDeclarations]: Found specification of procedure setEmailFrom
[2023-11-26 11:59:42,852 INFO  L138     BoogieDeclarations]: Found implementation of procedure setEmailFrom
[2023-11-26 11:59:42,852 INFO  L130     BoogieDeclarations]: Found specification of procedure isReadable
[2023-11-26 11:59:42,853 INFO  L138     BoogieDeclarations]: Found implementation of procedure isReadable
[2023-11-26 11:59:42,853 INFO  L130     BoogieDeclarations]: Found specification of procedure createClientKeyringEntry
[2023-11-26 11:59:42,854 INFO  L138     BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry
[2023-11-26 11:59:42,854 INFO  L130     BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted
[2023-11-26 11:59:42,854 INFO  L138     BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted
[2023-11-26 11:59:42,854 INFO  L130     BoogieDeclarations]: Found specification of procedure getEmailSignKey
[2023-11-26 11:59:42,855 INFO  L138     BoogieDeclarations]: Found implementation of procedure getEmailSignKey
[2023-11-26 11:59:42,855 INFO  L130     BoogieDeclarations]: Found specification of procedure chuckKeyAdd
[2023-11-26 11:59:42,856 INFO  L138     BoogieDeclarations]: Found implementation of procedure chuckKeyAdd
[2023-11-26 11:59:42,856 INFO  L130     BoogieDeclarations]: Found specification of procedure puts
[2023-11-26 11:59:42,856 INFO  L130     BoogieDeclarations]: Found specification of procedure getEmailFrom
[2023-11-26 11:59:42,856 INFO  L138     BoogieDeclarations]: Found implementation of procedure getEmailFrom
[2023-11-26 11:59:42,857 INFO  L130     BoogieDeclarations]: Found specification of procedure queue
[2023-11-26 11:59:42,857 INFO  L138     BoogieDeclarations]: Found implementation of procedure queue
[2023-11-26 11:59:42,857 INFO  L130     BoogieDeclarations]: Found specification of procedure setClientId
[2023-11-26 11:59:42,858 INFO  L138     BoogieDeclarations]: Found implementation of procedure setClientId
[2023-11-26 11:59:42,858 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-26 11:59:42,858 INFO  L130     BoogieDeclarations]: Found specification of procedure isSigned
[2023-11-26 11:59:42,858 INFO  L138     BoogieDeclarations]: Found implementation of procedure isSigned
[2023-11-26 11:59:42,858 INFO  L130     BoogieDeclarations]: Found specification of procedure isKeyPairValid
[2023-11-26 11:59:42,858 INFO  L138     BoogieDeclarations]: Found implementation of procedure isKeyPairValid
[2023-11-26 11:59:42,859 INFO  L130     BoogieDeclarations]: Found specification of procedure setClientKeyringUser
[2023-11-26 11:59:42,859 INFO  L138     BoogieDeclarations]: Found implementation of procedure setClientKeyringUser
[2023-11-26 11:59:42,859 INFO  L130     BoogieDeclarations]: Found specification of procedure __automaton_fail
[2023-11-26 11:59:42,859 INFO  L138     BoogieDeclarations]: Found implementation of procedure __automaton_fail
[2023-11-26 11:59:42,859 INFO  L130     BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey
[2023-11-26 11:59:42,859 INFO  L138     BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey
[2023-11-26 11:59:42,859 INFO  L130     BoogieDeclarations]: Found specification of procedure outgoing
[2023-11-26 11:59:42,860 INFO  L138     BoogieDeclarations]: Found implementation of procedure outgoing
[2023-11-26 11:59:42,860 INFO  L130     BoogieDeclarations]: Found specification of procedure findPublicKey
[2023-11-26 11:59:42,860 INFO  L138     BoogieDeclarations]: Found implementation of procedure findPublicKey
[2023-11-26 11:59:42,860 INFO  L130     BoogieDeclarations]: Found specification of procedure sendEmail
[2023-11-26 11:59:42,860 INFO  L138     BoogieDeclarations]: Found implementation of procedure sendEmail
[2023-11-26 11:59:42,860 INFO  L130     BoogieDeclarations]: Found specification of procedure isEncrypted
[2023-11-26 11:59:42,861 INFO  L138     BoogieDeclarations]: Found implementation of procedure isEncrypted
[2023-11-26 11:59:42,861 INFO  L130     BoogieDeclarations]: Found specification of procedure setClientPrivateKey
[2023-11-26 11:59:42,861 INFO  L138     BoogieDeclarations]: Found implementation of procedure setClientPrivateKey
[2023-11-26 11:59:42,861 INFO  L130     BoogieDeclarations]: Found specification of procedure setEmailTo
[2023-11-26 11:59:42,861 INFO  L138     BoogieDeclarations]: Found implementation of procedure setEmailTo
[2023-11-26 11:59:42,861 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-11-26 11:59:42,862 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#1
[2023-11-26 11:59:42,862 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#2
[2023-11-26 11:59:42,862 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#3
[2023-11-26 11:59:42,862 INFO  L130     BoogieDeclarations]: Found specification of procedure generateKeyPair
[2023-11-26 11:59:42,862 INFO  L138     BoogieDeclarations]: Found implementation of procedure generateKeyPair
[2023-11-26 11:59:42,862 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-26 11:59:42,862 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-26 11:59:43,125 INFO  L241             CfgBuilder]: Building ICFG
[2023-11-26 11:59:43,127 INFO  L267             CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-26 11:59:44,282 INFO  L282             CfgBuilder]: Performing block encoding
[2023-11-26 11:59:44,389 INFO  L304             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-26 11:59:44,389 INFO  L309             CfgBuilder]: Removed 1 assume(true) statements.
[2023-11-26 11:59:44,390 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:59:44 BoogieIcfgContainer
[2023-11-26 11:59:44,390 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-26 11:59:44,393 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-26 11:59:44,393 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2023-11-26 11:59:44,396 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2023-11-26 11:59:44,397 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:59:41" (1/3) ...
[2023-11-26 11:59:44,398 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13de302d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:59:44, skipping insertion in model container
[2023-11-26 11:59:44,398 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:59:42" (2/3) ...
[2023-11-26 11:59:44,399 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13de302d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:59:44, skipping insertion in model container
[2023-11-26 11:59:44,400 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:59:44" (3/3) ...
[2023-11-26 11:59:44,401 INFO  L112   eAbstractionObserver]: Analyzing ICFG email_spec3_product33.cil.c
[2023-11-26 11:59:44,422 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-26 11:59:44,422 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-11-26 11:59:44,503 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-26 11:59:44,509 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;@1b498d04, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-11-26 11:59:44,509 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-11-26 11:59:44,516 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 367 states, 272 states have (on average 1.5551470588235294) internal successors, (423), 278 states have internal predecessors, (423), 68 states have call successors, (68), 25 states have call predecessors, (68), 25 states have return successors, (68), 67 states have call predecessors, (68), 68 states have call successors, (68)
[2023-11-26 11:59:44,548 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 124
[2023-11-26 11:59:44,549 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 11:59:44,550 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 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]
[2023-11-26 11:59:44,550 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-26 11:59:44,557 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 11:59:44,557 INFO  L85        PathProgramCache]: Analyzing trace with hash 1144533239, now seen corresponding path program 1 times
[2023-11-26 11:59:44,565 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 11:59:44,565 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969997419]
[2023-11-26 11:59:44,565 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:59:44,566 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 11:59:44,782 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:45,451 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2023-11-26 11:59:45,455 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:45,471 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2023-11-26 11:59:45,485 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:45,487 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2023-11-26 11:59:45,491 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:45,534 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20
[2023-11-26 11:59:45,538 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:45,541 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26
[2023-11-26 11:59:45,544 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:45,548 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2023-11-26 11:59:45,552 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:45,565 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42
[2023-11-26 11:59:45,567 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:45,582 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47
[2023-11-26 11:59:45,585 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:45,592 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55
[2023-11-26 11:59:45,593 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:45,596 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63
[2023-11-26 11:59:45,601 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:45,602 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69
[2023-11-26 11:59:45,606 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:45,610 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80
[2023-11-26 11:59:45,612 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:45,614 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86
[2023-11-26 11:59:45,615 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:45,619 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92
[2023-11-26 11:59:45,621 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:45,623 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98
[2023-11-26 11:59:45,627 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:45,629 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107
[2023-11-26 11:59:45,634 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:45,638 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113
[2023-11-26 11:59:45,641 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:45,647 INFO  L134       CoverageAnalysis]: Checked inductivity of 41 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked.
[2023-11-26 11:59:45,647 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 11:59:45,648 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969997419]
[2023-11-26 11:59:45,649 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969997419] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-26 11:59:45,649 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [429539974]
[2023-11-26 11:59:45,650 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:59:45,650 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 11:59:45,650 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec58b1d0-261b-4a86-b740-4f810011007a/bin/uautomizer-verify-VRDe98Ueme/z3
[2023-11-26 11:59:45,656 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec58b1d0-261b-4a86-b740-4f810011007a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-26 11:59:45,664 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec58b1d0-261b-4a86-b740-4f810011007a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-11-26 11:59:46,051 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:46,058 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1184 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-11-26 11:59:46,069 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-26 11:59:46,094 INFO  L134       CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked.
[2023-11-26 11:59:46,094 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-26 11:59:46,095 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [429539974] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-26 11:59:46,095 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-11-26 11:59:46,095 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9
[2023-11-26 11:59:46,097 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607421910]
[2023-11-26 11:59:46,098 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-26 11:59:46,103 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-11-26 11:59:46,103 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 11:59:46,157 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-11-26 11:59:46,158 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72
[2023-11-26 11:59:46,161 INFO  L87              Difference]: Start difference. First operand  has 367 states, 272 states have (on average 1.5551470588235294) internal successors, (423), 278 states have internal predecessors, (423), 68 states have call successors, (68), 25 states have call predecessors, (68), 25 states have return successors, (68), 67 states have call predecessors, (68), 68 states have call successors, (68) Second operand  has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17)
[2023-11-26 11:59:46,263 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-26 11:59:46,263 INFO  L93              Difference]: Finished difference Result 584 states and 874 transitions.
[2023-11-26 11:59:46,264 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2023-11-26 11:59:46,266 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 123
[2023-11-26 11:59:46,266 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-26 11:59:46,283 INFO  L225             Difference]: With dead ends: 584
[2023-11-26 11:59:46,283 INFO  L226             Difference]: Without dead ends: 363
[2023-11-26 11:59:46,290 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72
[2023-11-26 11:59:46,294 INFO  L413           NwaCegarLoop]: 534 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-26 11:59:46,295 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 534 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-26 11:59:46,317 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 363 states.
[2023-11-26 11:59:46,363 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 363.
[2023-11-26 11:59:46,366 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 363 states, 270 states have (on average 1.5407407407407407) internal successors, (416), 274 states have internal predecessors, (416), 68 states have call successors, (68), 25 states have call predecessors, (68), 24 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65)
[2023-11-26 11:59:46,373 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 549 transitions.
[2023-11-26 11:59:46,374 INFO  L78                 Accepts]: Start accepts. Automaton has 363 states and 549 transitions. Word has length 123
[2023-11-26 11:59:46,376 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-26 11:59:46,376 INFO  L495      AbstractCegarLoop]: Abstraction has 363 states and 549 transitions.
[2023-11-26 11:59:46,377 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17)
[2023-11-26 11:59:46,377 INFO  L276                IsEmpty]: Start isEmpty. Operand 363 states and 549 transitions.
[2023-11-26 11:59:46,382 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 125
[2023-11-26 11:59:46,382 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 11:59:46,382 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 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]
[2023-11-26 11:59:46,397 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec58b1d0-261b-4a86-b740-4f810011007a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2023-11-26 11:59:46,591 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec58b1d0-261b-4a86-b740-4f810011007a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2023-11-26 11:59:46,592 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-26 11:59:46,592 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 11:59:46,592 INFO  L85        PathProgramCache]: Analyzing trace with hash -1714517900, now seen corresponding path program 1 times
[2023-11-26 11:59:46,592 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 11:59:46,593 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801116326]
[2023-11-26 11:59:46,593 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:59:46,593 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 11:59:46,632 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:46,829 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2023-11-26 11:59:46,832 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:46,843 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2023-11-26 11:59:46,846 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:46,848 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2023-11-26 11:59:46,851 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:46,874 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20
[2023-11-26 11:59:46,877 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:46,879 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26
[2023-11-26 11:59:46,882 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:46,885 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2023-11-26 11:59:46,888 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:46,900 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43
[2023-11-26 11:59:46,902 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:46,915 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48
[2023-11-26 11:59:46,917 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:46,918 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56
[2023-11-26 11:59:46,920 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:46,922 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64
[2023-11-26 11:59:46,924 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:46,925 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70
[2023-11-26 11:59:46,927 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:46,929 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81
[2023-11-26 11:59:46,931 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:46,933 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87
[2023-11-26 11:59:46,934 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:46,936 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93
[2023-11-26 11:59:46,938 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:46,939 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2023-11-26 11:59:46,941 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:46,943 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108
[2023-11-26 11:59:46,944 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:46,946 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114
[2023-11-26 11:59:46,948 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:46,950 INFO  L134       CoverageAnalysis]: Checked inductivity of 41 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked.
[2023-11-26 11:59:46,951 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 11:59:46,951 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801116326]
[2023-11-26 11:59:46,951 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801116326] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-26 11:59:46,952 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1517162589]
[2023-11-26 11:59:46,952 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:59:46,952 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 11:59:46,952 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec58b1d0-261b-4a86-b740-4f810011007a/bin/uautomizer-verify-VRDe98Ueme/z3
[2023-11-26 11:59:46,954 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec58b1d0-261b-4a86-b740-4f810011007a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-26 11:59:46,980 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec58b1d0-261b-4a86-b740-4f810011007a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2023-11-26 11:59:47,371 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:47,378 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1185 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-11-26 11:59:47,387 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-26 11:59:47,416 INFO  L134       CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked.
[2023-11-26 11:59:47,416 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-26 11:59:47,417 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1517162589] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-26 11:59:47,417 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-11-26 11:59:47,417 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10
[2023-11-26 11:59:47,418 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514021103]
[2023-11-26 11:59:47,418 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-26 11:59:47,419 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-26 11:59:47,419 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 11:59:47,421 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-26 11:59:47,421 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90
[2023-11-26 11:59:47,421 INFO  L87              Difference]: Start difference. First operand 363 states and 549 transitions. Second operand  has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17)
[2023-11-26 11:59:47,508 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-26 11:59:47,508 INFO  L93              Difference]: Finished difference Result 579 states and 857 transitions.
[2023-11-26 11:59:47,509 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-26 11:59:47,509 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 124
[2023-11-26 11:59:47,510 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-26 11:59:47,515 INFO  L225             Difference]: With dead ends: 579
[2023-11-26 11:59:47,519 INFO  L226             Difference]: Without dead ends: 365
[2023-11-26 11:59:47,522 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90
[2023-11-26 11:59:47,527 INFO  L413           NwaCegarLoop]: 531 mSDtfsCounter, 0 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1061 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
[2023-11-26 11:59:47,528 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1061 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-26 11:59:47,533 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 365 states.
[2023-11-26 11:59:47,576 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 365.
[2023-11-26 11:59:47,577 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 365 states, 272 states have (on average 1.536764705882353) internal successors, (418), 276 states have internal predecessors, (418), 68 states have call successors, (68), 25 states have call predecessors, (68), 24 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65)
[2023-11-26 11:59:47,582 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 551 transitions.
[2023-11-26 11:59:47,583 INFO  L78                 Accepts]: Start accepts. Automaton has 365 states and 551 transitions. Word has length 124
[2023-11-26 11:59:47,583 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-26 11:59:47,584 INFO  L495      AbstractCegarLoop]: Abstraction has 365 states and 551 transitions.
[2023-11-26 11:59:47,584 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17)
[2023-11-26 11:59:47,584 INFO  L276                IsEmpty]: Start isEmpty. Operand 365 states and 551 transitions.
[2023-11-26 11:59:47,588 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 132
[2023-11-26 11:59:47,588 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 11:59:47,589 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-26 11:59:47,597 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec58b1d0-261b-4a86-b740-4f810011007a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2023-11-26 11:59:47,797 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec58b1d0-261b-4a86-b740-4f810011007a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 11:59:47,797 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-26 11:59:47,798 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 11:59:47,798 INFO  L85        PathProgramCache]: Analyzing trace with hash 1617203612, now seen corresponding path program 1 times
[2023-11-26 11:59:47,799 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 11:59:47,801 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567891434]
[2023-11-26 11:59:47,802 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:59:47,803 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 11:59:47,847 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:48,064 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2023-11-26 11:59:48,066 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:48,077 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2023-11-26 11:59:48,079 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:48,081 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2023-11-26 11:59:48,085 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:48,106 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20
[2023-11-26 11:59:48,109 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:48,110 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26
[2023-11-26 11:59:48,113 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:48,115 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2023-11-26 11:59:48,117 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:48,129 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50
[2023-11-26 11:59:48,130 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:48,143 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55
[2023-11-26 11:59:48,145 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:48,147 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63
[2023-11-26 11:59:48,148 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:48,150 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71
[2023-11-26 11:59:48,152 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:48,154 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77
[2023-11-26 11:59:48,155 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:48,157 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88
[2023-11-26 11:59:48,175 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:48,177 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94
[2023-11-26 11:59:48,178 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:48,180 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2023-11-26 11:59:48,181 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:48,183 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106
[2023-11-26 11:59:48,184 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:48,185 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115
[2023-11-26 11:59:48,187 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:48,188 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2023-11-26 11:59:48,190 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:48,192 INFO  L134       CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked.
[2023-11-26 11:59:48,192 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 11:59:48,192 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567891434]
[2023-11-26 11:59:48,193 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567891434] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-26 11:59:48,193 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1528850417]
[2023-11-26 11:59:48,193 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:59:48,193 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 11:59:48,193 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec58b1d0-261b-4a86-b740-4f810011007a/bin/uautomizer-verify-VRDe98Ueme/z3
[2023-11-26 11:59:48,196 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec58b1d0-261b-4a86-b740-4f810011007a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-26 11:59:48,216 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec58b1d0-261b-4a86-b740-4f810011007a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2023-11-26 11:59:48,546 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:48,552 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1209 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-11-26 11:59:48,558 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-26 11:59:48,582 INFO  L134       CoverageAnalysis]: Checked inductivity of 43 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked.
[2023-11-26 11:59:48,582 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-26 11:59:48,582 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1528850417] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-26 11:59:48,582 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-11-26 11:59:48,583 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10
[2023-11-26 11:59:48,583 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186292161]
[2023-11-26 11:59:48,583 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-26 11:59:48,584 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-26 11:59:48,584 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 11:59:48,585 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-26 11:59:48,585 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90
[2023-11-26 11:59:48,586 INFO  L87              Difference]: Start difference. First operand 365 states and 551 transitions. Second operand  has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17)
[2023-11-26 11:59:48,667 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-26 11:59:48,667 INFO  L93              Difference]: Finished difference Result 764 states and 1168 transitions.
[2023-11-26 11:59:48,668 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2023-11-26 11:59:48,668 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 131
[2023-11-26 11:59:48,669 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-26 11:59:48,672 INFO  L225             Difference]: With dead ends: 764
[2023-11-26 11:59:48,673 INFO  L226             Difference]: Without dead ends: 421
[2023-11-26 11:59:48,675 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90
[2023-11-26 11:59:48,676 INFO  L413           NwaCegarLoop]: 543 mSDtfsCounter, 109 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 1030 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-11-26 11:59:48,677 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 1030 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-11-26 11:59:48,678 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 421 states.
[2023-11-26 11:59:48,700 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 416.
[2023-11-26 11:59:48,701 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 416 states, 312 states have (on average 1.5544871794871795) internal successors, (485), 316 states have internal predecessors, (485), 79 states have call successors, (79), 25 states have call predecessors, (79), 24 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76)
[2023-11-26 11:59:48,706 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 640 transitions.
[2023-11-26 11:59:48,706 INFO  L78                 Accepts]: Start accepts. Automaton has 416 states and 640 transitions. Word has length 131
[2023-11-26 11:59:48,707 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-26 11:59:48,707 INFO  L495      AbstractCegarLoop]: Abstraction has 416 states and 640 transitions.
[2023-11-26 11:59:48,707 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17)
[2023-11-26 11:59:48,707 INFO  L276                IsEmpty]: Start isEmpty. Operand 416 states and 640 transitions.
[2023-11-26 11:59:48,711 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 133
[2023-11-26 11:59:48,711 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 11:59:48,711 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-26 11:59:48,721 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec58b1d0-261b-4a86-b740-4f810011007a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2023-11-26 11:59:48,919 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec58b1d0-261b-4a86-b740-4f810011007a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 11:59:48,920 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-26 11:59:48,920 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 11:59:48,920 INFO  L85        PathProgramCache]: Analyzing trace with hash 1886266329, now seen corresponding path program 1 times
[2023-11-26 11:59:48,920 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 11:59:48,921 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616553146]
[2023-11-26 11:59:48,921 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:59:48,921 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 11:59:48,964 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:49,126 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2023-11-26 11:59:49,128 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:49,138 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2023-11-26 11:59:49,140 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:49,142 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2023-11-26 11:59:49,145 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:49,166 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20
[2023-11-26 11:59:49,169 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:49,173 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26
[2023-11-26 11:59:49,176 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:49,189 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32
[2023-11-26 11:59:49,192 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:49,204 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51
[2023-11-26 11:59:49,207 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:49,219 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56
[2023-11-26 11:59:49,221 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:49,224 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64
[2023-11-26 11:59:49,226 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:49,230 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72
[2023-11-26 11:59:49,231 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:49,233 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78
[2023-11-26 11:59:49,235 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:49,237 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2023-11-26 11:59:49,238 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:49,241 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95
[2023-11-26 11:59:49,243 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:49,245 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101
[2023-11-26 11:59:49,246 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:49,249 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107
[2023-11-26 11:59:49,251 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:49,253 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116
[2023-11-26 11:59:49,255 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:49,256 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122
[2023-11-26 11:59:49,258 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:49,260 INFO  L134       CoverageAnalysis]: Checked inductivity of 43 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked.
[2023-11-26 11:59:49,261 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 11:59:49,262 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616553146]
[2023-11-26 11:59:49,263 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616553146] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-26 11:59:49,263 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [820740629]
[2023-11-26 11:59:49,263 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:59:49,267 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 11:59:49,267 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec58b1d0-261b-4a86-b740-4f810011007a/bin/uautomizer-verify-VRDe98Ueme/z3
[2023-11-26 11:59:49,268 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec58b1d0-261b-4a86-b740-4f810011007a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-26 11:59:49,288 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec58b1d0-261b-4a86-b740-4f810011007a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2023-11-26 11:59:49,669 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:49,675 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1214 conjuncts, 8 conjunts are in the unsatisfiable core
[2023-11-26 11:59:49,680 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-26 11:59:49,767 INFO  L134       CoverageAnalysis]: Checked inductivity of 43 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked.
[2023-11-26 11:59:49,767 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-26 11:59:49,768 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [820740629] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-26 11:59:49,768 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-11-26 11:59:49,768 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12
[2023-11-26 11:59:49,768 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445697757]
[2023-11-26 11:59:49,768 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-26 11:59:49,769 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-26 11:59:49,769 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 11:59:49,770 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-26 11:59:49,770 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132
[2023-11-26 11:59:49,770 INFO  L87              Difference]: Start difference. First operand 416 states and 640 transitions. Second operand  has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17)
[2023-11-26 11:59:49,918 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-26 11:59:49,918 INFO  L93              Difference]: Finished difference Result 827 states and 1274 transitions.
[2023-11-26 11:59:49,919 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-26 11:59:49,919 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 132
[2023-11-26 11:59:49,919 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-26 11:59:49,923 INFO  L225             Difference]: With dead ends: 827
[2023-11-26 11:59:49,923 INFO  L226             Difference]: Without dead ends: 418
[2023-11-26 11:59:49,925 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156
[2023-11-26 11:59:49,926 INFO  L413           NwaCegarLoop]: 522 mSDtfsCounter, 8 mSDsluCounter, 1555 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2077 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-26 11:59:49,927 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2077 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-26 11:59:49,928 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 418 states.
[2023-11-26 11:59:49,946 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418.
[2023-11-26 11:59:49,947 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 418 states, 313 states have (on average 1.5527156549520766) internal successors, (486), 318 states have internal predecessors, (486), 79 states have call successors, (79), 25 states have call predecessors, (79), 25 states have return successors, (78), 76 states have call predecessors, (78), 76 states have call successors, (78)
[2023-11-26 11:59:49,952 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 643 transitions.
[2023-11-26 11:59:49,952 INFO  L78                 Accepts]: Start accepts. Automaton has 418 states and 643 transitions. Word has length 132
[2023-11-26 11:59:49,952 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-26 11:59:49,952 INFO  L495      AbstractCegarLoop]: Abstraction has 418 states and 643 transitions.
[2023-11-26 11:59:49,953 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17)
[2023-11-26 11:59:49,953 INFO  L276                IsEmpty]: Start isEmpty. Operand 418 states and 643 transitions.
[2023-11-26 11:59:49,956 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 134
[2023-11-26 11:59:49,956 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 11:59:49,957 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-26 11:59:49,974 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec58b1d0-261b-4a86-b740-4f810011007a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2023-11-26 11:59:50,164 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec58b1d0-261b-4a86-b740-4f810011007a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 11:59:50,165 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-26 11:59:50,165 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 11:59:50,165 INFO  L85        PathProgramCache]: Analyzing trace with hash 947886943, now seen corresponding path program 1 times
[2023-11-26 11:59:50,165 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 11:59:50,166 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339752205]
[2023-11-26 11:59:50,166 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:59:50,166 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 11:59:50,200 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:50,368 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2023-11-26 11:59:50,370 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:50,383 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2023-11-26 11:59:50,385 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:50,387 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2023-11-26 11:59:50,390 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:50,413 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21
[2023-11-26 11:59:50,416 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:50,441 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27
[2023-11-26 11:59:50,444 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:50,446 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33
[2023-11-26 11:59:50,448 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:50,463 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52
[2023-11-26 11:59:50,464 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:50,479 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57
[2023-11-26 11:59:50,481 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:50,483 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65
[2023-11-26 11:59:50,484 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:50,486 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73
[2023-11-26 11:59:50,487 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:50,488 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79
[2023-11-26 11:59:50,490 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:50,491 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90
[2023-11-26 11:59:50,492 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:50,494 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96
[2023-11-26 11:59:50,495 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:50,496 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102
[2023-11-26 11:59:50,498 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:50,499 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108
[2023-11-26 11:59:50,501 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:50,502 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117
[2023-11-26 11:59:50,503 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:50,505 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123
[2023-11-26 11:59:50,506 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:50,511 INFO  L134       CoverageAnalysis]: Checked inductivity of 43 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked.
[2023-11-26 11:59:50,511 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 11:59:50,511 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339752205]
[2023-11-26 11:59:50,511 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339752205] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-26 11:59:50,511 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1267986546]
[2023-11-26 11:59:50,512 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:59:50,512 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 11:59:50,512 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec58b1d0-261b-4a86-b740-4f810011007a/bin/uautomizer-verify-VRDe98Ueme/z3
[2023-11-26 11:59:50,513 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec58b1d0-261b-4a86-b740-4f810011007a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-26 11:59:50,536 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec58b1d0-261b-4a86-b740-4f810011007a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2023-11-26 11:59:50,906 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:50,912 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1215 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-11-26 11:59:50,917 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-26 11:59:50,994 INFO  L134       CoverageAnalysis]: Checked inductivity of 43 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked.
[2023-11-26 11:59:50,995 INFO  L323         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-26 11:59:50,995 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1267986546] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-26 11:59:50,995 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2023-11-26 11:59:50,995 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15
[2023-11-26 11:59:50,995 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226378186]
[2023-11-26 11:59:50,995 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-26 11:59:50,996 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-26 11:59:50,996 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 11:59:50,997 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-26 11:59:50,997 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210
[2023-11-26 11:59:50,997 INFO  L87              Difference]: Start difference. First operand 418 states and 643 transitions. Second operand  has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17)
[2023-11-26 11:59:51,161 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-26 11:59:51,162 INFO  L93              Difference]: Finished difference Result 829 states and 1279 transitions.
[2023-11-26 11:59:51,162 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2023-11-26 11:59:51,162 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 133
[2023-11-26 11:59:51,163 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-26 11:59:51,166 INFO  L225             Difference]: With dead ends: 829
[2023-11-26 11:59:51,166 INFO  L226             Difference]: Without dead ends: 420
[2023-11-26 11:59:51,168 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240
[2023-11-26 11:59:51,169 INFO  L413           NwaCegarLoop]: 520 mSDtfsCounter, 8 mSDsluCounter, 1543 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2063 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-11-26 11:59:51,170 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2063 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-11-26 11:59:51,171 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 420 states.
[2023-11-26 11:59:51,187 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 420.
[2023-11-26 11:59:51,188 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 420 states, 314 states have (on average 1.5509554140127388) internal successors, (487), 320 states have internal predecessors, (487), 79 states have call successors, (79), 25 states have call predecessors, (79), 26 states have return successors, (83), 76 states have call predecessors, (83), 76 states have call successors, (83)
[2023-11-26 11:59:51,192 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 649 transitions.
[2023-11-26 11:59:51,193 INFO  L78                 Accepts]: Start accepts. Automaton has 420 states and 649 transitions. Word has length 133
[2023-11-26 11:59:51,193 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-26 11:59:51,193 INFO  L495      AbstractCegarLoop]: Abstraction has 420 states and 649 transitions.
[2023-11-26 11:59:51,194 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17)
[2023-11-26 11:59:51,194 INFO  L276                IsEmpty]: Start isEmpty. Operand 420 states and 649 transitions.
[2023-11-26 11:59:51,197 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 135
[2023-11-26 11:59:51,197 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 11:59:51,198 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-26 11:59:51,210 INFO  L552       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec58b1d0-261b-4a86-b740-4f810011007a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2023-11-26 11:59:51,410 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec58b1d0-261b-4a86-b740-4f810011007a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 11:59:51,411 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-26 11:59:51,411 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 11:59:51,411 INFO  L85        PathProgramCache]: Analyzing trace with hash -935623589, now seen corresponding path program 1 times
[2023-11-26 11:59:51,411 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 11:59:51,411 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496296206]
[2023-11-26 11:59:51,412 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:59:51,412 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 11:59:51,454 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:51,609 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2023-11-26 11:59:51,611 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:51,621 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2023-11-26 11:59:51,623 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:51,624 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2023-11-26 11:59:51,626 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:51,628 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21
[2023-11-26 11:59:51,630 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:51,632 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28
[2023-11-26 11:59:51,635 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:51,655 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34
[2023-11-26 11:59:51,658 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:51,668 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53
[2023-11-26 11:59:51,669 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:51,681 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58
[2023-11-26 11:59:51,683 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:51,684 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66
[2023-11-26 11:59:51,685 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:51,688 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74
[2023-11-26 11:59:51,689 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:51,690 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80
[2023-11-26 11:59:51,692 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:51,693 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91
[2023-11-26 11:59:51,695 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:51,696 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97
[2023-11-26 11:59:51,697 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:51,702 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103
[2023-11-26 11:59:51,704 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:51,705 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109
[2023-11-26 11:59:51,706 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:51,707 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118
[2023-11-26 11:59:51,709 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:51,710 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124
[2023-11-26 11:59:51,711 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:51,713 INFO  L134       CoverageAnalysis]: Checked inductivity of 43 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked.
[2023-11-26 11:59:51,713 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 11:59:51,714 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496296206]
[2023-11-26 11:59:51,714 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496296206] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-26 11:59:51,714 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-26 11:59:51,714 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2023-11-26 11:59:51,714 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171899956]
[2023-11-26 11:59:51,715 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-26 11:59:51,715 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2023-11-26 11:59:51,715 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 11:59:51,716 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2023-11-26 11:59:51,716 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72
[2023-11-26 11:59:51,716 INFO  L87              Difference]: Start difference. First operand 420 states and 649 transitions. Second operand  has 9 states, 8 states have (on average 9.5) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17)
[2023-11-26 11:59:54,950 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-26 11:59:54,951 INFO  L93              Difference]: Finished difference Result 1007 states and 1577 transitions.
[2023-11-26 11:59:54,951 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2023-11-26 11:59:54,951 INFO  L78                 Accepts]: Start accepts. Automaton has  has 9 states, 8 states have (on average 9.5) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 134
[2023-11-26 11:59:54,952 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-26 11:59:54,957 INFO  L225             Difference]: With dead ends: 1007
[2023-11-26 11:59:54,957 INFO  L226             Difference]: Without dead ends: 606
[2023-11-26 11:59:54,959 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272
[2023-11-26 11:59:54,961 INFO  L413           NwaCegarLoop]: 162 mSDtfsCounter, 1214 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 3132 mSolverCounterSat, 453 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1215 SdHoareTripleChecker+Valid, 1011 SdHoareTripleChecker+Invalid, 3585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 453 IncrementalHoareTripleChecker+Valid, 3132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time
[2023-11-26 11:59:54,961 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1215 Valid, 1011 Invalid, 3585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [453 Valid, 3132 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time]
[2023-11-26 11:59:54,963 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 606 states.
[2023-11-26 11:59:55,014 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 420.
[2023-11-26 11:59:55,015 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 420 states, 314 states have (on average 1.5509554140127388) internal successors, (487), 320 states have internal predecessors, (487), 79 states have call successors, (79), 25 states have call predecessors, (79), 26 states have return successors, (82), 76 states have call predecessors, (82), 76 states have call successors, (82)
[2023-11-26 11:59:55,019 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 648 transitions.
[2023-11-26 11:59:55,020 INFO  L78                 Accepts]: Start accepts. Automaton has 420 states and 648 transitions. Word has length 134
[2023-11-26 11:59:55,020 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-26 11:59:55,020 INFO  L495      AbstractCegarLoop]: Abstraction has 420 states and 648 transitions.
[2023-11-26 11:59:55,020 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 8 states have (on average 9.5) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17)
[2023-11-26 11:59:55,021 INFO  L276                IsEmpty]: Start isEmpty. Operand 420 states and 648 transitions.
[2023-11-26 11:59:55,023 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 136
[2023-11-26 11:59:55,024 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 11:59:55,024 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-26 11:59:55,024 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2023-11-26 11:59:55,025 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-26 11:59:55,025 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 11:59:55,025 INFO  L85        PathProgramCache]: Analyzing trace with hash -439605949, now seen corresponding path program 2 times
[2023-11-26 11:59:55,025 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 11:59:55,025 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330466889]
[2023-11-26 11:59:55,026 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:59:55,026 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 11:59:55,055 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:55,199 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2023-11-26 11:59:55,201 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:55,211 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2023-11-26 11:59:55,212 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:55,214 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2023-11-26 11:59:55,216 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:55,218 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21
[2023-11-26 11:59:55,220 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:55,221 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28
[2023-11-26 11:59:55,224 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:55,245 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35
[2023-11-26 11:59:55,247 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:55,257 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54
[2023-11-26 11:59:55,258 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:55,269 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59
[2023-11-26 11:59:55,270 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:55,271 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67
[2023-11-26 11:59:55,272 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:55,274 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75
[2023-11-26 11:59:55,275 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:55,277 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81
[2023-11-26 11:59:55,278 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:55,280 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92
[2023-11-26 11:59:55,281 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:55,285 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98
[2023-11-26 11:59:55,286 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:55,292 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104
[2023-11-26 11:59:55,295 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:55,296 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110
[2023-11-26 11:59:55,297 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:55,299 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119
[2023-11-26 11:59:55,300 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:55,301 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125
[2023-11-26 11:59:55,302 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:55,305 INFO  L134       CoverageAnalysis]: Checked inductivity of 44 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked.
[2023-11-26 11:59:55,305 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 11:59:55,305 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330466889]
[2023-11-26 11:59:55,305 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330466889] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-26 11:59:55,306 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-26 11:59:55,306 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2023-11-26 11:59:55,306 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405787346]
[2023-11-26 11:59:55,306 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-26 11:59:55,307 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2023-11-26 11:59:55,308 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 11:59:55,308 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2023-11-26 11:59:55,309 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72
[2023-11-26 11:59:55,309 INFO  L87              Difference]: Start difference. First operand 420 states and 648 transitions. Second operand  has 9 states, 8 states have (on average 9.625) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17)
[2023-11-26 11:59:58,524 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-26 11:59:58,524 INFO  L93              Difference]: Finished difference Result 1009 states and 1580 transitions.
[2023-11-26 11:59:58,524 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. 
[2023-11-26 11:59:58,525 INFO  L78                 Accepts]: Start accepts. Automaton has  has 9 states, 8 states have (on average 9.625) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 135
[2023-11-26 11:59:58,525 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-26 11:59:58,530 INFO  L225             Difference]: With dead ends: 1009
[2023-11-26 11:59:58,530 INFO  L226             Difference]: Without dead ends: 608
[2023-11-26 11:59:58,532 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272
[2023-11-26 11:59:58,533 INFO  L413           NwaCegarLoop]: 162 mSDtfsCounter, 1209 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 3143 mSolverCounterSat, 453 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1210 SdHoareTripleChecker+Valid, 1011 SdHoareTripleChecker+Invalid, 3596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 453 IncrementalHoareTripleChecker+Valid, 3143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time
[2023-11-26 11:59:58,533 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1210 Valid, 1011 Invalid, 3596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [453 Valid, 3143 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time]
[2023-11-26 11:59:58,535 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 608 states.
[2023-11-26 11:59:58,591 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 422.
[2023-11-26 11:59:58,594 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 422 states, 315 states have (on average 1.5492063492063493) internal successors, (488), 322 states have internal predecessors, (488), 79 states have call successors, (79), 25 states have call predecessors, (79), 27 states have return successors, (84), 76 states have call predecessors, (84), 76 states have call successors, (84)
[2023-11-26 11:59:58,599 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 651 transitions.
[2023-11-26 11:59:58,599 INFO  L78                 Accepts]: Start accepts. Automaton has 422 states and 651 transitions. Word has length 135
[2023-11-26 11:59:58,600 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-26 11:59:58,600 INFO  L495      AbstractCegarLoop]: Abstraction has 422 states and 651 transitions.
[2023-11-26 11:59:58,600 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 8 states have (on average 9.625) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17)
[2023-11-26 11:59:58,600 INFO  L276                IsEmpty]: Start isEmpty. Operand 422 states and 651 transitions.
[2023-11-26 11:59:58,603 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 137
[2023-11-26 11:59:58,604 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 11:59:58,604 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-26 11:59:58,604 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2023-11-26 11:59:58,604 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-26 11:59:58,605 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 11:59:58,605 INFO  L85        PathProgramCache]: Analyzing trace with hash 1230306742, now seen corresponding path program 1 times
[2023-11-26 11:59:58,605 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 11:59:58,605 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540786916]
[2023-11-26 11:59:58,605 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 11:59:58,606 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 11:59:58,636 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:58,815 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2023-11-26 11:59:58,817 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:58,829 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2023-11-26 11:59:58,831 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:58,833 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2023-11-26 11:59:58,835 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:58,836 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21
[2023-11-26 11:59:58,838 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:58,841 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28
[2023-11-26 11:59:58,844 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:58,868 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36
[2023-11-26 11:59:58,872 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:58,908 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55
[2023-11-26 11:59:58,909 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:58,924 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60
[2023-11-26 11:59:58,925 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:58,927 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68
[2023-11-26 11:59:58,928 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:58,930 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76
[2023-11-26 11:59:58,931 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:58,932 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82
[2023-11-26 11:59:58,934 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:58,935 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93
[2023-11-26 11:59:58,936 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:58,938 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2023-11-26 11:59:58,939 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:58,940 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105
[2023-11-26 11:59:58,941 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:58,943 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111
[2023-11-26 11:59:58,944 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:58,945 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120
[2023-11-26 11:59:58,946 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:58,948 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126
[2023-11-26 11:59:58,949 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 11:59:58,952 INFO  L134       CoverageAnalysis]: Checked inductivity of 44 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked.
[2023-11-26 11:59:58,952 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 11:59:58,952 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540786916]
[2023-11-26 11:59:58,953 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540786916] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-26 11:59:58,953 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-26 11:59:58,953 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12
[2023-11-26 11:59:58,953 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166225235]
[2023-11-26 11:59:58,953 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-26 11:59:58,954 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2023-11-26 11:59:58,954 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 11:59:58,955 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2023-11-26 11:59:58,955 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132
[2023-11-26 11:59:58,956 INFO  L87              Difference]: Start difference. First operand 422 states and 651 transitions. Second operand  has 12 states, 11 states have (on average 7.363636363636363) internal successors, (81), 8 states have internal predecessors, (81), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17)
[2023-11-26 12:00:03,380 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-26 12:00:03,380 INFO  L93              Difference]: Finished difference Result 1007 states and 1575 transitions.
[2023-11-26 12:00:03,381 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2023-11-26 12:00:03,381 INFO  L78                 Accepts]: Start accepts. Automaton has  has 12 states, 11 states have (on average 7.363636363636363) internal successors, (81), 8 states have internal predecessors, (81), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 136
[2023-11-26 12:00:03,381 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-26 12:00:03,386 INFO  L225             Difference]: With dead ends: 1007
[2023-11-26 12:00:03,386 INFO  L226             Difference]: Without dead ends: 608
[2023-11-26 12:00:03,389 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
[2023-11-26 12:00:03,389 INFO  L413           NwaCegarLoop]: 154 mSDtfsCounter, 1219 mSDsluCounter, 1244 mSDsCounter, 0 mSdLazyCounter, 5196 mSolverCounterSat, 460 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1220 SdHoareTripleChecker+Valid, 1398 SdHoareTripleChecker+Invalid, 5656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 460 IncrementalHoareTripleChecker+Valid, 5196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time
[2023-11-26 12:00:03,390 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1220 Valid, 1398 Invalid, 5656 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [460 Valid, 5196 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time]
[2023-11-26 12:00:03,391 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 608 states.
[2023-11-26 12:00:03,433 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 422.
[2023-11-26 12:00:03,435 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 422 states, 315 states have (on average 1.5492063492063493) internal successors, (488), 322 states have internal predecessors, (488), 79 states have call successors, (79), 25 states have call predecessors, (79), 27 states have return successors, (83), 76 states have call predecessors, (83), 76 states have call successors, (83)
[2023-11-26 12:00:03,439 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 650 transitions.
[2023-11-26 12:00:03,439 INFO  L78                 Accepts]: Start accepts. Automaton has 422 states and 650 transitions. Word has length 136
[2023-11-26 12:00:03,440 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-26 12:00:03,440 INFO  L495      AbstractCegarLoop]: Abstraction has 422 states and 650 transitions.
[2023-11-26 12:00:03,440 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 12 states, 11 states have (on average 7.363636363636363) internal successors, (81), 8 states have internal predecessors, (81), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17)
[2023-11-26 12:00:03,440 INFO  L276                IsEmpty]: Start isEmpty. Operand 422 states and 650 transitions.
[2023-11-26 12:00:03,443 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 138
[2023-11-26 12:00:03,443 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 12:00:03,444 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-26 12:00:03,444 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2023-11-26 12:00:03,444 INFO  L420      AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-26 12:00:03,445 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 12:00:03,445 INFO  L85        PathProgramCache]: Analyzing trace with hash 2012530638, now seen corresponding path program 2 times
[2023-11-26 12:00:03,445 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 12:00:03,445 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044372418]
[2023-11-26 12:00:03,445 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 12:00:03,446 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 12:00:03,475 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:03,636 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2023-11-26 12:00:03,638 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:03,649 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2023-11-26 12:00:03,651 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:03,653 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2023-11-26 12:00:03,654 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:03,656 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21
[2023-11-26 12:00:03,659 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:03,660 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28
[2023-11-26 12:00:03,666 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:03,705 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36
[2023-11-26 12:00:03,708 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:03,745 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56
[2023-11-26 12:00:03,746 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:03,761 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61
[2023-11-26 12:00:03,762 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:03,763 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69
[2023-11-26 12:00:03,764 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:03,766 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77
[2023-11-26 12:00:03,767 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:03,769 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2023-11-26 12:00:03,770 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:03,771 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94
[2023-11-26 12:00:03,772 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:03,773 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2023-11-26 12:00:03,774 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:03,775 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106
[2023-11-26 12:00:03,776 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:03,778 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112
[2023-11-26 12:00:03,779 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:03,780 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121
[2023-11-26 12:00:03,781 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:03,782 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127
[2023-11-26 12:00:03,783 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:03,785 INFO  L134       CoverageAnalysis]: Checked inductivity of 45 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked.
[2023-11-26 12:00:03,785 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 12:00:03,785 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044372418]
[2023-11-26 12:00:03,786 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044372418] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-26 12:00:03,786 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-26 12:00:03,786 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12
[2023-11-26 12:00:03,786 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285151111]
[2023-11-26 12:00:03,786 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-26 12:00:03,787 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2023-11-26 12:00:03,787 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 12:00:03,788 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2023-11-26 12:00:03,788 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132
[2023-11-26 12:00:03,789 INFO  L87              Difference]: Start difference. First operand 422 states and 650 transitions. Second operand  has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 8 states have internal predecessors, (82), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17)
[2023-11-26 12:00:08,047 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-26 12:00:08,048 INFO  L93              Difference]: Finished difference Result 1009 states and 1581 transitions.
[2023-11-26 12:00:08,048 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2023-11-26 12:00:08,049 INFO  L78                 Accepts]: Start accepts. Automaton has  has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 8 states have internal predecessors, (82), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17) Word has length 137
[2023-11-26 12:00:08,049 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-26 12:00:08,054 INFO  L225             Difference]: With dead ends: 1009
[2023-11-26 12:00:08,054 INFO  L226             Difference]: Without dead ends: 610
[2023-11-26 12:00:08,057 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
[2023-11-26 12:00:08,060 INFO  L413           NwaCegarLoop]: 154 mSDtfsCounter, 1214 mSDsluCounter, 1244 mSDsCounter, 0 mSdLazyCounter, 5214 mSolverCounterSat, 457 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1216 SdHoareTripleChecker+Valid, 1398 SdHoareTripleChecker+Invalid, 5671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 457 IncrementalHoareTripleChecker+Valid, 5214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time
[2023-11-26 12:00:08,060 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1216 Valid, 1398 Invalid, 5671 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [457 Valid, 5214 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time]
[2023-11-26 12:00:08,062 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 610 states.
[2023-11-26 12:00:08,102 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 424.
[2023-11-26 12:00:08,104 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 424 states, 316 states have (on average 1.5474683544303798) internal successors, (489), 324 states have internal predecessors, (489), 79 states have call successors, (79), 25 states have call predecessors, (79), 28 states have return successors, (88), 76 states have call predecessors, (88), 76 states have call successors, (88)
[2023-11-26 12:00:08,108 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 656 transitions.
[2023-11-26 12:00:08,109 INFO  L78                 Accepts]: Start accepts. Automaton has 424 states and 656 transitions. Word has length 137
[2023-11-26 12:00:08,109 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-26 12:00:08,109 INFO  L495      AbstractCegarLoop]: Abstraction has 424 states and 656 transitions.
[2023-11-26 12:00:08,109 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 8 states have internal predecessors, (82), 4 states have call successors, (20), 6 states have call predecessors, (20), 3 states have return successors, (17), 3 states have call predecessors, (17), 4 states have call successors, (17)
[2023-11-26 12:00:08,110 INFO  L276                IsEmpty]: Start isEmpty. Operand 424 states and 656 transitions.
[2023-11-26 12:00:08,113 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 139
[2023-11-26 12:00:08,113 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 12:00:08,113 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-26 12:00:08,113 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2023-11-26 12:00:08,114 INFO  L420      AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-26 12:00:08,114 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 12:00:08,114 INFO  L85        PathProgramCache]: Analyzing trace with hash -1885776497, now seen corresponding path program 1 times
[2023-11-26 12:00:08,114 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 12:00:08,114 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557246004]
[2023-11-26 12:00:08,115 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 12:00:08,115 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 12:00:08,147 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:08,255 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2023-11-26 12:00:08,257 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:08,265 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2023-11-26 12:00:08,267 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:08,268 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2023-11-26 12:00:08,273 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:08,275 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21
[2023-11-26 12:00:08,277 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:08,280 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28
[2023-11-26 12:00:08,282 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:08,284 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36
[2023-11-26 12:00:08,287 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:08,313 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57
[2023-11-26 12:00:08,314 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:08,324 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62
[2023-11-26 12:00:08,325 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:08,326 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70
[2023-11-26 12:00:08,327 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:08,329 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78
[2023-11-26 12:00:08,330 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:08,331 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2023-11-26 12:00:08,332 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:08,333 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95
[2023-11-26 12:00:08,335 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:08,336 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101
[2023-11-26 12:00:08,337 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:08,338 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107
[2023-11-26 12:00:08,339 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:08,340 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113
[2023-11-26 12:00:08,341 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:08,342 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122
[2023-11-26 12:00:08,344 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:08,345 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128
[2023-11-26 12:00:08,346 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:08,347 INFO  L134       CoverageAnalysis]: Checked inductivity of 45 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked.
[2023-11-26 12:00:08,348 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 12:00:08,348 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557246004]
[2023-11-26 12:00:08,348 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557246004] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-26 12:00:08,348 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-26 12:00:08,348 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9
[2023-11-26 12:00:08,349 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657541660]
[2023-11-26 12:00:08,349 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-26 12:00:08,349 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2023-11-26 12:00:08,349 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 12:00:08,350 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2023-11-26 12:00:08,350 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72
[2023-11-26 12:00:08,351 INFO  L87              Difference]: Start difference. First operand 424 states and 656 transitions. Second operand  has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17)
[2023-11-26 12:00:11,520 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-26 12:00:11,520 INFO  L93              Difference]: Finished difference Result 1011 states and 1584 transitions.
[2023-11-26 12:00:11,520 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2023-11-26 12:00:11,521 INFO  L78                 Accepts]: Start accepts. Automaton has  has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 138
[2023-11-26 12:00:11,521 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-26 12:00:11,526 INFO  L225             Difference]: With dead ends: 1011
[2023-11-26 12:00:11,526 INFO  L226             Difference]: Without dead ends: 610
[2023-11-26 12:00:11,528 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342
[2023-11-26 12:00:11,529 INFO  L413           NwaCegarLoop]: 160 mSDtfsCounter, 1212 mSDsluCounter, 847 mSDsCounter, 0 mSdLazyCounter, 3122 mSolverCounterSat, 458 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1213 SdHoareTripleChecker+Valid, 1007 SdHoareTripleChecker+Invalid, 3580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 458 IncrementalHoareTripleChecker+Valid, 3122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time
[2023-11-26 12:00:11,529 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1213 Valid, 1007 Invalid, 3580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [458 Valid, 3122 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time]
[2023-11-26 12:00:11,531 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 610 states.
[2023-11-26 12:00:11,574 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 424.
[2023-11-26 12:00:11,576 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 424 states, 316 states have (on average 1.5474683544303798) internal successors, (489), 324 states have internal predecessors, (489), 79 states have call successors, (79), 25 states have call predecessors, (79), 28 states have return successors, (88), 76 states have call predecessors, (88), 76 states have call successors, (88)
[2023-11-26 12:00:11,579 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 656 transitions.
[2023-11-26 12:00:11,580 INFO  L78                 Accepts]: Start accepts. Automaton has 424 states and 656 transitions. Word has length 138
[2023-11-26 12:00:11,580 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-26 12:00:11,580 INFO  L495      AbstractCegarLoop]: Abstraction has 424 states and 656 transitions.
[2023-11-26 12:00:11,580 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (20), 6 states have call predecessors, (20), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17)
[2023-11-26 12:00:11,581 INFO  L276                IsEmpty]: Start isEmpty. Operand 424 states and 656 transitions.
[2023-11-26 12:00:11,584 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 139
[2023-11-26 12:00:11,584 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 12:00:11,584 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-26 12:00:11,584 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2023-11-26 12:00:11,585 INFO  L420      AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-26 12:00:11,585 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 12:00:11,585 INFO  L85        PathProgramCache]: Analyzing trace with hash 20626769, now seen corresponding path program 1 times
[2023-11-26 12:00:11,585 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 12:00:11,586 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371159053]
[2023-11-26 12:00:11,586 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 12:00:11,586 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 12:00:11,611 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:11,799 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2023-11-26 12:00:11,801 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:11,812 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2023-11-26 12:00:11,814 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:11,815 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2023-11-26 12:00:11,818 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:11,842 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21
[2023-11-26 12:00:11,845 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:11,847 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28
[2023-11-26 12:00:11,849 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:11,851 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36
[2023-11-26 12:00:11,854 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:11,867 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57
[2023-11-26 12:00:11,868 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:11,881 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62
[2023-11-26 12:00:11,882 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:11,884 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70
[2023-11-26 12:00:11,885 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:11,886 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78
[2023-11-26 12:00:11,887 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:11,888 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2023-11-26 12:00:11,890 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:11,892 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95
[2023-11-26 12:00:11,894 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:11,895 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101
[2023-11-26 12:00:11,896 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:11,898 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107
[2023-11-26 12:00:11,899 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:11,903 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113
[2023-11-26 12:00:11,905 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:11,906 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122
[2023-11-26 12:00:11,907 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:11,908 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128
[2023-11-26 12:00:11,909 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:11,911 INFO  L134       CoverageAnalysis]: Checked inductivity of 45 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked.
[2023-11-26 12:00:11,912 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 12:00:11,912 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371159053]
[2023-11-26 12:00:11,912 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371159053] provided 0 perfect and 1 imperfect interpolant sequences
[2023-11-26 12:00:11,912 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [526835429]
[2023-11-26 12:00:11,912 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 12:00:11,913 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-11-26 12:00:11,913 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec58b1d0-261b-4a86-b740-4f810011007a/bin/uautomizer-verify-VRDe98Ueme/z3
[2023-11-26 12:00:11,914 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec58b1d0-261b-4a86-b740-4f810011007a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-11-26 12:00:11,920 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec58b1d0-261b-4a86-b740-4f810011007a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2023-11-26 12:00:12,301 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:12,307 INFO  L262         TraceCheckSpWp]: Trace formula consists of 1220 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-11-26 12:00:12,312 INFO  L285         TraceCheckSpWp]: Computing forward predicates...
[2023-11-26 12:00:12,355 INFO  L134       CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked.
[2023-11-26 12:00:12,356 INFO  L327         TraceCheckSpWp]: Computing backward predicates...
[2023-11-26 12:00:12,457 INFO  L134       CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked.
[2023-11-26 12:00:12,457 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [526835429] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-26 12:00:12,458 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2023-11-26 12:00:12,458 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15
[2023-11-26 12:00:12,460 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810105582]
[2023-11-26 12:00:12,460 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2023-11-26 12:00:12,461 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 15 states
[2023-11-26 12:00:12,462 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 12:00:12,462 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2023-11-26 12:00:12,463 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210
[2023-11-26 12:00:12,463 INFO  L87              Difference]: Start difference. First operand 424 states and 656 transitions. Second operand  has 15 states, 14 states have (on average 9.571428571428571) internal successors, (134), 11 states have internal predecessors, (134), 4 states have call successors, (40), 6 states have call predecessors, (40), 3 states have return successors, (32), 3 states have call predecessors, (32), 4 states have call successors, (32)
[2023-11-26 12:00:17,333 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-26 12:00:17,334 INFO  L93              Difference]: Finished difference Result 1358 states and 2226 transitions.
[2023-11-26 12:00:17,334 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. 
[2023-11-26 12:00:17,334 INFO  L78                 Accepts]: Start accepts. Automaton has  has 15 states, 14 states have (on average 9.571428571428571) internal successors, (134), 11 states have internal predecessors, (134), 4 states have call successors, (40), 6 states have call predecessors, (40), 3 states have return successors, (32), 3 states have call predecessors, (32), 4 states have call successors, (32) Word has length 138
[2023-11-26 12:00:17,335 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-26 12:00:17,346 INFO  L225             Difference]: With dead ends: 1358
[2023-11-26 12:00:17,346 INFO  L226             Difference]: Without dead ends: 960
[2023-11-26 12:00:17,350 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=165, Invalid=827, Unknown=0, NotChecked=0, Total=992
[2023-11-26 12:00:17,351 INFO  L413           NwaCegarLoop]: 147 mSDtfsCounter, 2201 mSDsluCounter, 1512 mSDsCounter, 0 mSdLazyCounter, 6284 mSolverCounterSat, 797 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2218 SdHoareTripleChecker+Valid, 1659 SdHoareTripleChecker+Invalid, 7081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 797 IncrementalHoareTripleChecker+Valid, 6284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time
[2023-11-26 12:00:17,351 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [2218 Valid, 1659 Invalid, 7081 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [797 Valid, 6284 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time]
[2023-11-26 12:00:17,354 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 960 states.
[2023-11-26 12:00:17,420 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 960 to 759.
[2023-11-26 12:00:17,422 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 759 states, 587 states have (on average 1.604770017035775) internal successors, (942), 595 states have internal predecessors, (942), 143 states have call successors, (143), 25 states have call predecessors, (143), 28 states have return successors, (162), 140 states have call predecessors, (162), 140 states have call successors, (162)
[2023-11-26 12:00:17,427 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 759 states to 759 states and 1247 transitions.
[2023-11-26 12:00:17,428 INFO  L78                 Accepts]: Start accepts. Automaton has 759 states and 1247 transitions. Word has length 138
[2023-11-26 12:00:17,429 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-26 12:00:17,429 INFO  L495      AbstractCegarLoop]: Abstraction has 759 states and 1247 transitions.
[2023-11-26 12:00:17,429 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 15 states, 14 states have (on average 9.571428571428571) internal successors, (134), 11 states have internal predecessors, (134), 4 states have call successors, (40), 6 states have call predecessors, (40), 3 states have return successors, (32), 3 states have call predecessors, (32), 4 states have call successors, (32)
[2023-11-26 12:00:17,430 INFO  L276                IsEmpty]: Start isEmpty. Operand 759 states and 1247 transitions.
[2023-11-26 12:00:17,435 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 143
[2023-11-26 12:00:17,435 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 12:00:17,436 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-26 12:00:17,448 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec58b1d0-261b-4a86-b740-4f810011007a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0
[2023-11-26 12:00:17,643 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec58b1d0-261b-4a86-b740-4f810011007a/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10
[2023-11-26 12:00:17,644 INFO  L420      AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-26 12:00:17,644 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 12:00:17,645 INFO  L85        PathProgramCache]: Analyzing trace with hash 383764263, now seen corresponding path program 1 times
[2023-11-26 12:00:17,645 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 12:00:17,645 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893064775]
[2023-11-26 12:00:17,645 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 12:00:17,646 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 12:00:17,671 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:17,732 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2023-11-26 12:00:17,734 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:17,745 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2023-11-26 12:00:17,747 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:17,748 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2023-11-26 12:00:17,750 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:17,752 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21
[2023-11-26 12:00:17,753 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:17,755 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28
[2023-11-26 12:00:17,757 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:17,759 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36
[2023-11-26 12:00:17,761 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:17,771 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61
[2023-11-26 12:00:17,772 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:17,782 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66
[2023-11-26 12:00:17,783 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:17,785 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74
[2023-11-26 12:00:17,786 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:17,788 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82
[2023-11-26 12:00:17,790 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:17,791 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88
[2023-11-26 12:00:17,792 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:17,794 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99
[2023-11-26 12:00:17,795 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:17,796 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105
[2023-11-26 12:00:17,797 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:17,798 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111
[2023-11-26 12:00:17,800 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:17,801 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117
[2023-11-26 12:00:17,803 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:17,804 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126
[2023-11-26 12:00:17,805 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:17,806 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132
[2023-11-26 12:00:17,807 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:17,809 INFO  L134       CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked.
[2023-11-26 12:00:17,810 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 12:00:17,810 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893064775]
[2023-11-26 12:00:17,810 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893064775] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-26 12:00:17,810 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-26 12:00:17,810 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-11-26 12:00:17,810 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612531964]
[2023-11-26 12:00:17,811 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-26 12:00:17,811 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-11-26 12:00:17,811 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 12:00:17,812 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-11-26 12:00:17,812 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-11-26 12:00:17,813 INFO  L87              Difference]: Start difference. First operand 759 states and 1247 transitions. Second operand  has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17)
[2023-11-26 12:00:20,259 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-26 12:00:20,259 INFO  L93              Difference]: Finished difference Result 1953 states and 3285 transitions.
[2023-11-26 12:00:20,259 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2023-11-26 12:00:20,260 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 142
[2023-11-26 12:00:20,260 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-26 12:00:20,271 INFO  L225             Difference]: With dead ends: 1953
[2023-11-26 12:00:20,271 INFO  L226             Difference]: Without dead ends: 1262
[2023-11-26 12:00:20,276 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156
[2023-11-26 12:00:20,277 INFO  L413           NwaCegarLoop]: 179 mSDtfsCounter, 1309 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 1807 mSolverCounterSat, 506 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1324 SdHoareTripleChecker+Valid, 763 SdHoareTripleChecker+Invalid, 2313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 506 IncrementalHoareTripleChecker+Valid, 1807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time
[2023-11-26 12:00:20,277 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1324 Valid, 763 Invalid, 2313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [506 Valid, 1807 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time]
[2023-11-26 12:00:20,279 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1262 states.
[2023-11-26 12:00:20,366 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1262 to 1071.
[2023-11-26 12:00:20,369 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1071 states, 835 states have (on average 1.621556886227545) internal successors, (1354), 843 states have internal predecessors, (1354), 207 states have call successors, (207), 25 states have call predecessors, (207), 28 states have return successors, (236), 204 states have call predecessors, (236), 204 states have call successors, (236)
[2023-11-26 12:00:20,376 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1071 states to 1071 states and 1797 transitions.
[2023-11-26 12:00:20,377 INFO  L78                 Accepts]: Start accepts. Automaton has 1071 states and 1797 transitions. Word has length 142
[2023-11-26 12:00:20,377 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-26 12:00:20,377 INFO  L495      AbstractCegarLoop]: Abstraction has 1071 states and 1797 transitions.
[2023-11-26 12:00:20,377 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17)
[2023-11-26 12:00:20,378 INFO  L276                IsEmpty]: Start isEmpty. Operand 1071 states and 1797 transitions.
[2023-11-26 12:00:20,386 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 144
[2023-11-26 12:00:20,386 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 12:00:20,387 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-26 12:00:20,387 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2023-11-26 12:00:20,387 INFO  L420      AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-26 12:00:20,387 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 12:00:20,388 INFO  L85        PathProgramCache]: Analyzing trace with hash -1518090249, now seen corresponding path program 1 times
[2023-11-26 12:00:20,388 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 12:00:20,388 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548819115]
[2023-11-26 12:00:20,388 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 12:00:20,388 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 12:00:20,414 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:20,460 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2023-11-26 12:00:20,462 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:20,472 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2023-11-26 12:00:20,474 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:20,475 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2023-11-26 12:00:20,477 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:20,496 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21
[2023-11-26 12:00:20,498 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:20,500 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28
[2023-11-26 12:00:20,502 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:20,504 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36
[2023-11-26 12:00:20,506 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:20,521 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62
[2023-11-26 12:00:20,523 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:20,541 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67
[2023-11-26 12:00:20,542 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:20,543 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75
[2023-11-26 12:00:20,545 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:20,546 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83
[2023-11-26 12:00:20,547 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:20,548 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89
[2023-11-26 12:00:20,549 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:20,550 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100
[2023-11-26 12:00:20,551 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:20,553 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106
[2023-11-26 12:00:20,554 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:20,555 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112
[2023-11-26 12:00:20,556 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:20,557 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118
[2023-11-26 12:00:20,578 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:20,580 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127
[2023-11-26 12:00:20,581 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:20,582 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133
[2023-11-26 12:00:20,583 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:20,585 INFO  L134       CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked.
[2023-11-26 12:00:20,585 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 12:00:20,586 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548819115]
[2023-11-26 12:00:20,586 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548819115] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-26 12:00:20,586 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-26 12:00:20,586 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-11-26 12:00:20,586 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900767836]
[2023-11-26 12:00:20,586 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-26 12:00:20,587 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-11-26 12:00:20,587 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 12:00:20,588 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-11-26 12:00:20,588 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-11-26 12:00:20,588 INFO  L87              Difference]: Start difference. First operand 1071 states and 1797 transitions. Second operand  has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17)
[2023-11-26 12:00:22,961 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-26 12:00:22,961 INFO  L93              Difference]: Finished difference Result 2722 states and 4633 transitions.
[2023-11-26 12:00:22,962 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2023-11-26 12:00:22,962 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 143
[2023-11-26 12:00:22,962 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-26 12:00:22,979 INFO  L225             Difference]: With dead ends: 2722
[2023-11-26 12:00:22,980 INFO  L226             Difference]: Without dead ends: 1769
[2023-11-26 12:00:22,986 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156
[2023-11-26 12:00:22,987 INFO  L413           NwaCegarLoop]: 172 mSDtfsCounter, 1307 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 1789 mSolverCounterSat, 510 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1322 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 2299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 510 IncrementalHoareTripleChecker+Valid, 1789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time
[2023-11-26 12:00:22,987 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [1322 Valid, 750 Invalid, 2299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [510 Valid, 1789 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time]
[2023-11-26 12:00:22,990 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1769 states.
[2023-11-26 12:00:23,120 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1769 to 1578.
[2023-11-26 12:00:23,126 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1578 states, 1247 states have (on average 1.6311146752205292) internal successors, (2034), 1255 states have internal predecessors, (2034), 302 states have call successors, (302), 25 states have call predecessors, (302), 28 states have return successors, (331), 299 states have call predecessors, (331), 299 states have call successors, (331)
[2023-11-26 12:00:23,132 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1578 states to 1578 states and 2667 transitions.
[2023-11-26 12:00:23,133 INFO  L78                 Accepts]: Start accepts. Automaton has 1578 states and 2667 transitions. Word has length 143
[2023-11-26 12:00:23,133 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2023-11-26 12:00:23,133 INFO  L495      AbstractCegarLoop]: Abstraction has 1578 states and 2667 transitions.
[2023-11-26 12:00:23,133 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17)
[2023-11-26 12:00:23,134 INFO  L276                IsEmpty]: Start isEmpty. Operand 1578 states and 2667 transitions.
[2023-11-26 12:00:23,146 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 145
[2023-11-26 12:00:23,147 INFO  L187           NwaCegarLoop]: Found error trace
[2023-11-26 12:00:23,147 INFO  L195           NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-26 12:00:23,147 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2023-11-26 12:00:23,147 INFO  L420      AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-11-26 12:00:23,148 INFO  L160       PredicateUnifier]: Initialized classic predicate unifier
[2023-11-26 12:00:23,148 INFO  L85        PathProgramCache]: Analyzing trace with hash 1347304473, now seen corresponding path program 1 times
[2023-11-26 12:00:23,148 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-26 12:00:23,148 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906285080]
[2023-11-26 12:00:23,148 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-26 12:00:23,149 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-26 12:00:23,178 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:23,226 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2023-11-26 12:00:23,228 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:23,236 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8
[2023-11-26 12:00:23,238 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:23,239 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2023-11-26 12:00:23,241 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:23,243 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21
[2023-11-26 12:00:23,244 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:23,246 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28
[2023-11-26 12:00:23,248 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:23,250 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36
[2023-11-26 12:00:23,251 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:23,259 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63
[2023-11-26 12:00:23,260 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:23,276 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68
[2023-11-26 12:00:23,277 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:23,278 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76
[2023-11-26 12:00:23,280 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:23,282 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84
[2023-11-26 12:00:23,283 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:23,284 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90
[2023-11-26 12:00:23,285 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:23,286 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101
[2023-11-26 12:00:23,287 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:23,288 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107
[2023-11-26 12:00:23,290 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:23,291 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113
[2023-11-26 12:00:23,292 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:23,293 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119
[2023-11-26 12:00:23,297 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:23,299 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128
[2023-11-26 12:00:23,300 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:23,302 INFO  L376   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134
[2023-11-26 12:00:23,304 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-26 12:00:23,312 INFO  L134       CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked.
[2023-11-26 12:00:23,313 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-11-26 12:00:23,313 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906285080]
[2023-11-26 12:00:23,313 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906285080] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-26 12:00:23,313 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-26 12:00:23,313 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2023-11-26 12:00:23,314 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081875873]
[2023-11-26 12:00:23,314 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-26 12:00:23,315 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2023-11-26 12:00:23,315 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-11-26 12:00:23,316 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2023-11-26 12:00:23,316 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2023-11-26 12:00:23,316 INFO  L87              Difference]: Start difference. First operand 1578 states and 2667 transitions. Second operand  has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (20), 6 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17)