java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ntdrivers-simplified/cdaudio_simpl1.cil-1.c


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


This is Ultimate 0.1.24-13a467a-m
[2019-10-14 23:17:44,342 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2019-10-14 23:17:44,345 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2019-10-14 23:17:44,357 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2019-10-14 23:17:44,357 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2019-10-14 23:17:44,358 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2019-10-14 23:17:44,360 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2019-10-14 23:17:44,362 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2019-10-14 23:17:44,363 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2019-10-14 23:17:44,364 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2019-10-14 23:17:44,365 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2019-10-14 23:17:44,366 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2019-10-14 23:17:44,367 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2019-10-14 23:17:44,368 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2019-10-14 23:17:44,368 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2019-10-14 23:17:44,369 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2019-10-14 23:17:44,370 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-10-14 23:17:44,371 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-10-14 23:17:44,373 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-10-14 23:17:44,374 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2019-10-14 23:17:44,376 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2019-10-14 23:17:44,377 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2019-10-14 23:17:44,378 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2019-10-14 23:17:44,379 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2019-10-14 23:17:44,381 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2019-10-14 23:17:44,381 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2019-10-14 23:17:44,381 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2019-10-14 23:17:44,382 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2019-10-14 23:17:44,383 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2019-10-14 23:17:44,383 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2019-10-14 23:17:44,384 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2019-10-14 23:17:44,384 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2019-10-14 23:17:44,385 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2019-10-14 23:17:44,386 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2019-10-14 23:17:44,387 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2019-10-14 23:17:44,387 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2019-10-14 23:17:44,388 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2019-10-14 23:17:44,388 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2019-10-14 23:17:44,388 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2019-10-14 23:17:44,390 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2019-10-14 23:17:44,390 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2019-10-14 23:17:44,404 INFO  L113        SettingsManager]: Loading preferences was successful
[2019-10-14 23:17:44,404 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2019-10-14 23:17:44,406 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-10-14 23:17:44,406 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2019-10-14 23:17:44,406 INFO  L138        SettingsManager]:  * Use SBE=true
[2019-10-14 23:17:44,406 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-10-14 23:17:44,407 INFO  L138        SettingsManager]:  * sizeof long=4
[2019-10-14 23:17:44,407 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2019-10-14 23:17:44,407 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2019-10-14 23:17:44,407 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2019-10-14 23:17:44,407 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2019-10-14 23:17:44,408 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-10-14 23:17:44,408 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2019-10-14 23:17:44,408 INFO  L138        SettingsManager]:  * sizeof long double=12
[2019-10-14 23:17:44,408 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2019-10-14 23:17:44,408 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2019-10-14 23:17:44,409 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2019-10-14 23:17:44,409 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-10-14 23:17:44,409 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2019-10-14 23:17:44,409 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2019-10-14 23:17:44,410 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2019-10-14 23:17:44,410 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-10-14 23:17:44,410 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-10-14 23:17:44,410 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2019-10-14 23:17:44,410 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-10-14 23:17:44,411 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2019-10-14 23:17:44,411 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-10-14 23:17:44,411 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-10-14 23:17:44,411 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2019-10-14 23:17:44,731 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2019-10-14 23:17:44,753 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-10-14 23:17:44,756 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-10-14 23:17:44,757 INFO  L271        PluginConnector]: Initializing CDTParser...
[2019-10-14 23:17:44,758 INFO  L275        PluginConnector]: CDTParser initialized
[2019-10-14 23:17:44,758 INFO  L428   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers-simplified/cdaudio_simpl1.cil-1.c
[2019-10-14 23:17:44,817 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bab8b143/a50d75bc08ee43828956ac328732f8e7/FLAG6576c2081
[2019-10-14 23:17:45,386 INFO  L306              CDTParser]: Found 1 translation units.
[2019-10-14 23:17:45,387 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ntdrivers-simplified/cdaudio_simpl1.cil-1.c
[2019-10-14 23:17:45,413 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bab8b143/a50d75bc08ee43828956ac328732f8e7/FLAG6576c2081
[2019-10-14 23:17:45,630 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8bab8b143/a50d75bc08ee43828956ac328732f8e7
[2019-10-14 23:17:45,638 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-10-14 23:17:45,639 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2019-10-14 23:17:45,640 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-10-14 23:17:45,641 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-10-14 23:17:45,644 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2019-10-14 23:17:45,645 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:17:45" (1/1) ...
[2019-10-14 23:17:45,648 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@352dfa6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:17:45, skipping insertion in model container
[2019-10-14 23:17:45,648 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:17:45" (1/1) ...
[2019-10-14 23:17:45,655 INFO  L142         MainTranslator]: Starting translation in SV-COMP mode 
[2019-10-14 23:17:45,723 INFO  L173         MainTranslator]: Built tables and reachable declarations
[2019-10-14 23:17:46,294 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-10-14 23:17:46,300 INFO  L188         MainTranslator]: Completed pre-run
[2019-10-14 23:17:46,436 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-10-14 23:17:46,469 INFO  L192         MainTranslator]: Completed translation
[2019-10-14 23:17:46,469 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:17:46 WrapperNode
[2019-10-14 23:17:46,469 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-10-14 23:17:46,470 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-10-14 23:17:46,470 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2019-10-14 23:17:46,470 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2019-10-14 23:17:46,480 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:17:46" (1/1) ...
[2019-10-14 23:17:46,481 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:17:46" (1/1) ...
[2019-10-14 23:17:46,500 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:17:46" (1/1) ...
[2019-10-14 23:17:46,500 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:17:46" (1/1) ...
[2019-10-14 23:17:46,540 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:17:46" (1/1) ...
[2019-10-14 23:17:46,564 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:17:46" (1/1) ...
[2019-10-14 23:17:46,571 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:17:46" (1/1) ...
[2019-10-14 23:17:46,588 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-10-14 23:17:46,590 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-10-14 23:17:46,590 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2019-10-14 23:17:46,591 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2019-10-14 23:17:46,592 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:17:46" (1/1) ...
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-10-14 23:17:46,666 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-10-14 23:17:46,666 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-10-14 23:17:46,666 INFO  L138     BoogieDeclarations]: Found implementation of procedure errorFn
[2019-10-14 23:17:46,666 INFO  L138     BoogieDeclarations]: Found implementation of procedure _BLAST_init
[2019-10-14 23:17:46,667 INFO  L138     BoogieDeclarations]: Found implementation of procedure SendSrbSynchronous
[2019-10-14 23:17:46,667 INFO  L138     BoogieDeclarations]: Found implementation of procedure CdAudioSignalCompletion
[2019-10-14 23:17:46,667 INFO  L138     BoogieDeclarations]: Found implementation of procedure CdAudioStartDevice
[2019-10-14 23:17:46,667 INFO  L138     BoogieDeclarations]: Found implementation of procedure CdAudioPnp
[2019-10-14 23:17:46,667 INFO  L138     BoogieDeclarations]: Found implementation of procedure CdAudioDeviceControl
[2019-10-14 23:17:46,667 INFO  L138     BoogieDeclarations]: Found implementation of procedure CdAudioSendToNextDriver
[2019-10-14 23:17:46,668 INFO  L138     BoogieDeclarations]: Found implementation of procedure CdAudioIsPlayActive
[2019-10-14 23:17:46,668 INFO  L138     BoogieDeclarations]: Found implementation of procedure CdAudio535DeviceControl
[2019-10-14 23:17:46,668 INFO  L138     BoogieDeclarations]: Found implementation of procedure AG_SetStatusAndReturn
[2019-10-14 23:17:46,668 INFO  L138     BoogieDeclarations]: Found implementation of procedure CdAudio435DeviceControl
[2019-10-14 23:17:46,668 INFO  L138     BoogieDeclarations]: Found implementation of procedure CdAudioAtapiDeviceControl
[2019-10-14 23:17:46,668 INFO  L138     BoogieDeclarations]: Found implementation of procedure HpCdrProcessLastSession
[2019-10-14 23:17:46,669 INFO  L138     BoogieDeclarations]: Found implementation of procedure HPCdrCompletion
[2019-10-14 23:17:46,669 INFO  L138     BoogieDeclarations]: Found implementation of procedure CdAudioHPCdrDeviceControl
[2019-10-14 23:17:46,669 INFO  L138     BoogieDeclarations]: Found implementation of procedure CdAudioForwardIrpSynchronous
[2019-10-14 23:17:46,669 INFO  L138     BoogieDeclarations]: Found implementation of procedure CdAudioUnload
[2019-10-14 23:17:46,669 INFO  L138     BoogieDeclarations]: Found implementation of procedure CdAudioPower
[2019-10-14 23:17:46,669 INFO  L138     BoogieDeclarations]: Found implementation of procedure stub_driver_init
[2019-10-14 23:17:46,670 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2019-10-14 23:17:46,670 INFO  L138     BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired
[2019-10-14 23:17:46,670 INFO  L138     BoogieDeclarations]: Found implementation of procedure IofCallDriver
[2019-10-14 23:17:46,670 INFO  L138     BoogieDeclarations]: Found implementation of procedure IofCompleteRequest
[2019-10-14 23:17:46,670 INFO  L138     BoogieDeclarations]: Found implementation of procedure KeSetEvent
[2019-10-14 23:17:46,671 INFO  L138     BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject
[2019-10-14 23:17:46,671 INFO  L138     BoogieDeclarations]: Found implementation of procedure PoCallDriver
[2019-10-14 23:17:46,671 INFO  L138     BoogieDeclarations]: Found implementation of procedure ZwClose
[2019-10-14 23:17:46,671 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-10-14 23:17:46,671 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char
[2019-10-14 23:17:46,671 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2019-10-14 23:17:46,671 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long
[2019-10-14 23:17:46,672 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer
[2019-10-14 23:17:46,672 INFO  L130     BoogieDeclarations]: Found specification of procedure SendSrbSynchronous
[2019-10-14 23:17:46,672 INFO  L130     BoogieDeclarations]: Found specification of procedure CdAudioSignalCompletion
[2019-10-14 23:17:46,672 INFO  L130     BoogieDeclarations]: Found specification of procedure CdAudioStartDevice
[2019-10-14 23:17:46,672 INFO  L130     BoogieDeclarations]: Found specification of procedure CdAudioPnp
[2019-10-14 23:17:46,672 INFO  L130     BoogieDeclarations]: Found specification of procedure CdAudioDeviceControl
[2019-10-14 23:17:46,673 INFO  L130     BoogieDeclarations]: Found specification of procedure CdAudioSendToNextDriver
[2019-10-14 23:17:46,673 INFO  L130     BoogieDeclarations]: Found specification of procedure CdAudioIsPlayActive
[2019-10-14 23:17:46,673 INFO  L130     BoogieDeclarations]: Found specification of procedure CdAudio535DeviceControl
[2019-10-14 23:17:46,673 INFO  L130     BoogieDeclarations]: Found specification of procedure AG_SetStatusAndReturn
[2019-10-14 23:17:46,673 INFO  L130     BoogieDeclarations]: Found specification of procedure CdAudio435DeviceControl
[2019-10-14 23:17:46,673 INFO  L130     BoogieDeclarations]: Found specification of procedure CdAudioAtapiDeviceControl
[2019-10-14 23:17:46,673 INFO  L130     BoogieDeclarations]: Found specification of procedure HPCdrCompletion
[2019-10-14 23:17:46,674 INFO  L130     BoogieDeclarations]: Found specification of procedure CdAudioHPCdrDeviceControl
[2019-10-14 23:17:46,674 INFO  L130     BoogieDeclarations]: Found specification of procedure CdAudioForwardIrpSynchronous
[2019-10-14 23:17:46,674 INFO  L130     BoogieDeclarations]: Found specification of procedure CdAudioPower
[2019-10-14 23:17:46,674 INFO  L130     BoogieDeclarations]: Found specification of procedure IofCallDriver
[2019-10-14 23:17:46,674 INFO  L130     BoogieDeclarations]: Found specification of procedure KeSetEvent
[2019-10-14 23:17:46,674 INFO  L130     BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject
[2019-10-14 23:17:46,675 INFO  L130     BoogieDeclarations]: Found specification of procedure PoCallDriver
[2019-10-14 23:17:46,675 INFO  L130     BoogieDeclarations]: Found specification of procedure ZwClose
[2019-10-14 23:17:46,675 INFO  L130     BoogieDeclarations]: Found specification of procedure IofCompleteRequest
[2019-10-14 23:17:46,675 INFO  L130     BoogieDeclarations]: Found specification of procedure errorFn
[2019-10-14 23:17:46,675 INFO  L130     BoogieDeclarations]: Found specification of procedure _BLAST_init
[2019-10-14 23:17:46,675 INFO  L130     BoogieDeclarations]: Found specification of procedure HpCdrProcessLastSession
[2019-10-14 23:17:46,675 INFO  L130     BoogieDeclarations]: Found specification of procedure CdAudioUnload
[2019-10-14 23:17:46,676 INFO  L130     BoogieDeclarations]: Found specification of procedure stub_driver_init
[2019-10-14 23:17:46,676 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2019-10-14 23:17:46,676 INFO  L130     BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired
[2019-10-14 23:17:46,676 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-10-14 23:17:46,676 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-10-14 23:17:47,272 WARN  L732   $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2019-10-14 23:17:47,372 INFO  L685   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume !false;
[2019-10-14 23:17:47,372 INFO  L685   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume false;
[2019-10-14 23:17:47,379 WARN  L732   $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2019-10-14 23:17:47,444 INFO  L685   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume !false;
[2019-10-14 23:17:47,444 INFO  L685   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume false;
[2019-10-14 23:17:47,581 WARN  L732   $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2019-10-14 23:17:47,633 INFO  L685   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false;
[2019-10-14 23:17:47,633 INFO  L685   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false;
[2019-10-14 23:17:47,735 WARN  L732   $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2019-10-14 23:17:47,793 INFO  L685   $ProcedureCfgBuilder]: dead code at ProgramPoint L304: #res := 0;
[2019-10-14 23:17:47,793 INFO  L685   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume !false;
[2019-10-14 23:17:47,794 INFO  L685   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume false;
[2019-10-14 23:17:47,800 WARN  L732   $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2019-10-14 23:17:47,970 INFO  L685   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume false;
[2019-10-14 23:17:47,970 INFO  L685   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##22: assume !false;
[2019-10-14 23:17:47,971 WARN  L732   $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2019-10-14 23:17:48,009 INFO  L685   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false;
[2019-10-14 23:17:48,010 INFO  L685   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false;
[2019-10-14 23:17:48,039 WARN  L732   $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2019-10-14 23:17:48,059 INFO  L685   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false;
[2019-10-14 23:17:48,059 INFO  L685   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false;
[2019-10-14 23:17:48,063 WARN  L732   $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2019-10-14 23:17:48,262 INFO  L685   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume !false;
[2019-10-14 23:17:48,262 INFO  L685   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume false;
[2019-10-14 23:17:48,276 WARN  L732   $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2019-10-14 23:17:48,281 INFO  L685   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false;
[2019-10-14 23:17:48,281 INFO  L685   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false;
[2019-10-14 23:17:48,295 INFO  L279             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-10-14 23:17:48,296 INFO  L284             CfgBuilder]: Removed 1 assume(true) statements.
[2019-10-14 23:17:48,297 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:17:48 BoogieIcfgContainer
[2019-10-14 23:17:48,297 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-10-14 23:17:48,299 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-10-14 23:17:48,299 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2019-10-14 23:17:48,302 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2019-10-14 23:17:48,302 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:17:45" (1/3) ...
[2019-10-14 23:17:48,303 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c283101 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:17:48, skipping insertion in model container
[2019-10-14 23:17:48,303 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:17:46" (2/3) ...
[2019-10-14 23:17:48,303 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c283101 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:17:48, skipping insertion in model container
[2019-10-14 23:17:48,304 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:17:48" (3/3) ...
[2019-10-14 23:17:48,305 INFO  L109   eAbstractionObserver]: Analyzing ICFG cdaudio_simpl1.cil-1.c
[2019-10-14 23:17:48,315 INFO  L152   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-10-14 23:17:48,323 INFO  L164   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2019-10-14 23:17:48,335 INFO  L249      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2019-10-14 23:17:48,365 INFO  L373      AbstractCegarLoop]: Interprodecural is true
[2019-10-14 23:17:48,365 INFO  L374      AbstractCegarLoop]: Hoare is true
[2019-10-14 23:17:48,365 INFO  L375      AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-10-14 23:17:48,366 INFO  L376      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-10-14 23:17:48,366 INFO  L377      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-10-14 23:17:48,366 INFO  L378      AbstractCegarLoop]: Difference is false
[2019-10-14 23:17:48,366 INFO  L379      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-10-14 23:17:48,366 INFO  L383      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-10-14 23:17:48,397 INFO  L276                IsEmpty]: Start isEmpty. Operand 517 states.
[2019-10-14 23:17:48,404 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2019-10-14 23:17:48,404 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:17:48,405 INFO  L380         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-14 23:17:48,407 INFO  L410      AbstractCegarLoop]: === Iteration 1 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:17:48,413 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:17:48,413 INFO  L82        PathProgramCache]: Analyzing trace with hash 1098408584, now seen corresponding path program 1 times
[2019-10-14 23:17:48,421 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:17:48,422 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730268282]
[2019-10-14 23:17:48,422 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:17:48,422 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:17:48,423 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:17:48,641 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:17:48,831 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:17:48,898 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:17:48,913 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-14 23:17:48,915 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730268282]
[2019-10-14 23:17:48,917 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:17:48,917 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-10-14 23:17:48,917 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977585340]
[2019-10-14 23:17:48,924 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-10-14 23:17:48,925 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:17:48,945 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-10-14 23:17:48,950 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2019-10-14 23:17:48,954 INFO  L87              Difference]: Start difference. First operand 517 states. Second operand 5 states.
[2019-10-14 23:17:52,213 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:17:52,214 INFO  L93              Difference]: Finished difference Result 1047 states and 1683 transitions.
[2019-10-14 23:17:52,216 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2019-10-14 23:17:52,217 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 20
[2019-10-14 23:17:52,218 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:17:52,254 INFO  L225             Difference]: With dead ends: 1047
[2019-10-14 23:17:52,255 INFO  L226             Difference]: Without dead ends: 665
[2019-10-14 23:17:52,268 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2019-10-14 23:17:52,290 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 665 states.
[2019-10-14 23:17:52,438 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 509.
[2019-10-14 23:17:52,439 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 509 states.
[2019-10-14 23:17:52,443 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 740 transitions.
[2019-10-14 23:17:52,445 INFO  L78                 Accepts]: Start accepts. Automaton has 509 states and 740 transitions. Word has length 20
[2019-10-14 23:17:52,446 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:17:52,446 INFO  L462      AbstractCegarLoop]: Abstraction has 509 states and 740 transitions.
[2019-10-14 23:17:52,446 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2019-10-14 23:17:52,446 INFO  L276                IsEmpty]: Start isEmpty. Operand 509 states and 740 transitions.
[2019-10-14 23:17:52,447 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2019-10-14 23:17:52,448 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:17:52,448 INFO  L380         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-14 23:17:52,448 INFO  L410      AbstractCegarLoop]: === Iteration 2 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:17:52,448 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:17:52,448 INFO  L82        PathProgramCache]: Analyzing trace with hash -1051395834, now seen corresponding path program 1 times
[2019-10-14 23:17:52,449 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:17:52,449 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384400371]
[2019-10-14 23:17:52,449 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:17:52,449 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:17:52,449 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:17:52,492 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:17:52,650 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:17:52,715 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:17:52,759 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:17:52,776 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-14 23:17:52,776 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384400371]
[2019-10-14 23:17:52,776 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:17:52,777 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2019-10-14 23:17:52,777 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976908163]
[2019-10-14 23:17:52,778 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 6 states
[2019-10-14 23:17:52,779 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:17:52,779 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2019-10-14 23:17:52,779 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2019-10-14 23:17:52,779 INFO  L87              Difference]: Start difference. First operand 509 states and 740 transitions. Second operand 6 states.
[2019-10-14 23:17:56,093 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:17:56,094 INFO  L93              Difference]: Finished difference Result 967 states and 1429 transitions.
[2019-10-14 23:17:56,094 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2019-10-14 23:17:56,094 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 25
[2019-10-14 23:17:56,095 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:17:56,102 INFO  L225             Difference]: With dead ends: 967
[2019-10-14 23:17:56,102 INFO  L226             Difference]: Without dead ends: 846
[2019-10-14 23:17:56,104 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2019-10-14 23:17:56,106 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 846 states.
[2019-10-14 23:17:56,171 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 664.
[2019-10-14 23:17:56,172 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 664 states.
[2019-10-14 23:17:56,178 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 964 transitions.
[2019-10-14 23:17:56,179 INFO  L78                 Accepts]: Start accepts. Automaton has 664 states and 964 transitions. Word has length 25
[2019-10-14 23:17:56,179 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:17:56,180 INFO  L462      AbstractCegarLoop]: Abstraction has 664 states and 964 transitions.
[2019-10-14 23:17:56,180 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2019-10-14 23:17:56,180 INFO  L276                IsEmpty]: Start isEmpty. Operand 664 states and 964 transitions.
[2019-10-14 23:17:56,189 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 31
[2019-10-14 23:17:56,189 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:17:56,189 INFO  L380         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-14 23:17:56,190 INFO  L410      AbstractCegarLoop]: === Iteration 3 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:17:56,190 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:17:56,190 INFO  L82        PathProgramCache]: Analyzing trace with hash -584641203, now seen corresponding path program 1 times
[2019-10-14 23:17:56,190 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:17:56,191 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473054191]
[2019-10-14 23:17:56,192 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:17:56,192 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:17:56,192 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:17:56,243 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:17:56,372 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:17:56,425 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:17:56,458 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:17:56,484 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-14 23:17:56,485 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473054191]
[2019-10-14 23:17:56,485 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:17:56,485 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2019-10-14 23:17:56,485 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708116582]
[2019-10-14 23:17:56,486 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 6 states
[2019-10-14 23:17:56,486 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:17:56,486 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2019-10-14 23:17:56,487 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2019-10-14 23:17:56,487 INFO  L87              Difference]: Start difference. First operand 664 states and 964 transitions. Second operand 6 states.
[2019-10-14 23:17:59,298 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:17:59,299 INFO  L93              Difference]: Finished difference Result 1148 states and 1650 transitions.
[2019-10-14 23:17:59,299 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2019-10-14 23:17:59,299 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 30
[2019-10-14 23:17:59,300 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:17:59,307 INFO  L225             Difference]: With dead ends: 1148
[2019-10-14 23:17:59,307 INFO  L226             Difference]: Without dead ends: 970
[2019-10-14 23:17:59,308 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2019-10-14 23:17:59,310 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 970 states.
[2019-10-14 23:17:59,382 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 789.
[2019-10-14 23:17:59,382 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 789 states.
[2019-10-14 23:17:59,387 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1135 transitions.
[2019-10-14 23:17:59,389 INFO  L78                 Accepts]: Start accepts. Automaton has 789 states and 1135 transitions. Word has length 30
[2019-10-14 23:17:59,389 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:17:59,389 INFO  L462      AbstractCegarLoop]: Abstraction has 789 states and 1135 transitions.
[2019-10-14 23:17:59,389 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2019-10-14 23:17:59,389 INFO  L276                IsEmpty]: Start isEmpty. Operand 789 states and 1135 transitions.
[2019-10-14 23:17:59,392 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2019-10-14 23:17:59,392 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:17:59,392 INFO  L380         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-14 23:17:59,392 INFO  L410      AbstractCegarLoop]: === Iteration 4 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:17:59,393 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:17:59,393 INFO  L82        PathProgramCache]: Analyzing trace with hash -1008074, now seen corresponding path program 1 times
[2019-10-14 23:17:59,393 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:17:59,393 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832966835]
[2019-10-14 23:17:59,393 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:17:59,394 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:17:59,394 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:17:59,420 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:17:59,515 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:17:59,557 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:17:59,596 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:17:59,601 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-14 23:17:59,601 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832966835]
[2019-10-14 23:17:59,601 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:17:59,601 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2019-10-14 23:17:59,602 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848892611]
[2019-10-14 23:17:59,602 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 6 states
[2019-10-14 23:17:59,602 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:17:59,603 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2019-10-14 23:17:59,603 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2019-10-14 23:17:59,603 INFO  L87              Difference]: Start difference. First operand 789 states and 1135 transitions. Second operand 6 states.
[2019-10-14 23:18:03,716 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:18:03,717 INFO  L93              Difference]: Finished difference Result 1630 states and 2449 transitions.
[2019-10-14 23:18:03,719 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2019-10-14 23:18:03,719 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 31
[2019-10-14 23:18:03,719 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:18:03,729 INFO  L225             Difference]: With dead ends: 1630
[2019-10-14 23:18:03,730 INFO  L226             Difference]: Without dead ends: 1344
[2019-10-14 23:18:03,731 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2019-10-14 23:18:03,734 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1344 states.
[2019-10-14 23:18:03,822 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1344 to 907.
[2019-10-14 23:18:03,823 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 907 states.
[2019-10-14 23:18:03,829 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 907 states to 907 states and 1348 transitions.
[2019-10-14 23:18:03,830 INFO  L78                 Accepts]: Start accepts. Automaton has 907 states and 1348 transitions. Word has length 31
[2019-10-14 23:18:03,830 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:18:03,830 INFO  L462      AbstractCegarLoop]: Abstraction has 907 states and 1348 transitions.
[2019-10-14 23:18:03,830 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2019-10-14 23:18:03,831 INFO  L276                IsEmpty]: Start isEmpty. Operand 907 states and 1348 transitions.
[2019-10-14 23:18:03,832 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 33
[2019-10-14 23:18:03,832 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:18:03,832 INFO  L380         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-14 23:18:03,833 INFO  L410      AbstractCegarLoop]: === Iteration 5 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:18:03,833 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:18:03,833 INFO  L82        PathProgramCache]: Analyzing trace with hash -269643889, now seen corresponding path program 1 times
[2019-10-14 23:18:03,834 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:18:03,834 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616626514]
[2019-10-14 23:18:03,834 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:18:03,834 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:18:03,835 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:18:03,899 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:18:04,000 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:18:04,042 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:18:04,067 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:18:04,085 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-14 23:18:04,086 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616626514]
[2019-10-14 23:18:04,086 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:18:04,086 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2019-10-14 23:18:04,086 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552990514]
[2019-10-14 23:18:04,087 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 8 states
[2019-10-14 23:18:04,087 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:18:04,087 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2019-10-14 23:18:04,088 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2019-10-14 23:18:04,088 INFO  L87              Difference]: Start difference. First operand 907 states and 1348 transitions. Second operand 8 states.
[2019-10-14 23:18:04,338 WARN  L191               SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71
[2019-10-14 23:18:08,400 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:18:08,401 INFO  L93              Difference]: Finished difference Result 1709 states and 2588 transitions.
[2019-10-14 23:18:08,401 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2019-10-14 23:18:08,401 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 32
[2019-10-14 23:18:08,402 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:18:08,410 INFO  L225             Difference]: With dead ends: 1709
[2019-10-14 23:18:08,410 INFO  L226             Difference]: Without dead ends: 1123
[2019-10-14 23:18:08,414 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210
[2019-10-14 23:18:08,416 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1123 states.
[2019-10-14 23:18:08,530 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1123 to 835.
[2019-10-14 23:18:08,530 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 835 states.
[2019-10-14 23:18:08,534 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 1203 transitions.
[2019-10-14 23:18:08,535 INFO  L78                 Accepts]: Start accepts. Automaton has 835 states and 1203 transitions. Word has length 32
[2019-10-14 23:18:08,537 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:18:08,537 INFO  L462      AbstractCegarLoop]: Abstraction has 835 states and 1203 transitions.
[2019-10-14 23:18:08,537 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2019-10-14 23:18:08,537 INFO  L276                IsEmpty]: Start isEmpty. Operand 835 states and 1203 transitions.
[2019-10-14 23:18:08,540 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 37
[2019-10-14 23:18:08,540 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:18:08,540 INFO  L380         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-14 23:18:08,541 INFO  L410      AbstractCegarLoop]: === Iteration 6 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:18:08,541 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:18:08,541 INFO  L82        PathProgramCache]: Analyzing trace with hash 428268071, now seen corresponding path program 1 times
[2019-10-14 23:18:08,541 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:18:08,541 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264108894]
[2019-10-14 23:18:08,541 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:18:08,542 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:18:08,542 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:18:08,580 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:18:08,659 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:18:08,708 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:18:08,730 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:18:08,735 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-14 23:18:08,735 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264108894]
[2019-10-14 23:18:08,736 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:18:08,737 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2019-10-14 23:18:08,737 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567947692]
[2019-10-14 23:18:08,737 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 6 states
[2019-10-14 23:18:08,737 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:18:08,738 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2019-10-14 23:18:08,738 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2019-10-14 23:18:08,738 INFO  L87              Difference]: Start difference. First operand 835 states and 1203 transitions. Second operand 6 states.
[2019-10-14 23:18:11,558 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:18:11,558 INFO  L93              Difference]: Finished difference Result 965 states and 1425 transitions.
[2019-10-14 23:18:11,558 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2019-10-14 23:18:11,558 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 36
[2019-10-14 23:18:11,559 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:18:11,563 INFO  L225             Difference]: With dead ends: 965
[2019-10-14 23:18:11,563 INFO  L226             Difference]: Without dead ends: 961
[2019-10-14 23:18:11,564 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2019-10-14 23:18:11,565 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 961 states.
[2019-10-14 23:18:11,622 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 961 to 834.
[2019-10-14 23:18:11,622 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 834 states.
[2019-10-14 23:18:11,626 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1200 transitions.
[2019-10-14 23:18:11,626 INFO  L78                 Accepts]: Start accepts. Automaton has 834 states and 1200 transitions. Word has length 36
[2019-10-14 23:18:11,627 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:18:11,627 INFO  L462      AbstractCegarLoop]: Abstraction has 834 states and 1200 transitions.
[2019-10-14 23:18:11,627 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2019-10-14 23:18:11,627 INFO  L276                IsEmpty]: Start isEmpty. Operand 834 states and 1200 transitions.
[2019-10-14 23:18:11,630 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 40
[2019-10-14 23:18:11,630 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:18:11,633 INFO  L380         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-14 23:18:11,633 INFO  L410      AbstractCegarLoop]: === Iteration 7 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:18:11,633 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:18:11,634 INFO  L82        PathProgramCache]: Analyzing trace with hash 1410155750, now seen corresponding path program 1 times
[2019-10-14 23:18:11,634 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:18:11,634 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314223634]
[2019-10-14 23:18:11,634 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:18:11,634 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:18:11,635 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:18:11,675 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:18:11,766 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:18:11,801 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:18:11,823 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:18:11,828 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-14 23:18:11,828 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314223634]
[2019-10-14 23:18:11,829 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:18:11,829 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2019-10-14 23:18:11,829 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519615125]
[2019-10-14 23:18:11,830 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 6 states
[2019-10-14 23:18:11,830 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:18:11,830 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2019-10-14 23:18:11,831 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2019-10-14 23:18:11,832 INFO  L87              Difference]: Start difference. First operand 834 states and 1200 transitions. Second operand 6 states.
[2019-10-14 23:18:14,969 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:18:14,970 INFO  L93              Difference]: Finished difference Result 1342 states and 1928 transitions.
[2019-10-14 23:18:14,970 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2019-10-14 23:18:14,971 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 39
[2019-10-14 23:18:14,971 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:18:14,979 INFO  L225             Difference]: With dead ends: 1342
[2019-10-14 23:18:14,979 INFO  L226             Difference]: Without dead ends: 1098
[2019-10-14 23:18:14,981 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2019-10-14 23:18:14,983 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1098 states.
[2019-10-14 23:18:15,038 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 848.
[2019-10-14 23:18:15,039 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 848 states.
[2019-10-14 23:18:15,042 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 848 states to 848 states and 1197 transitions.
[2019-10-14 23:18:15,043 INFO  L78                 Accepts]: Start accepts. Automaton has 848 states and 1197 transitions. Word has length 39
[2019-10-14 23:18:15,043 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:18:15,043 INFO  L462      AbstractCegarLoop]: Abstraction has 848 states and 1197 transitions.
[2019-10-14 23:18:15,043 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2019-10-14 23:18:15,043 INFO  L276                IsEmpty]: Start isEmpty. Operand 848 states and 1197 transitions.
[2019-10-14 23:18:15,045 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 41
[2019-10-14 23:18:15,045 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:18:15,046 INFO  L380         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-14 23:18:15,046 INFO  L410      AbstractCegarLoop]: === Iteration 8 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:18:15,046 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:18:15,046 INFO  L82        PathProgramCache]: Analyzing trace with hash 1085841368, now seen corresponding path program 1 times
[2019-10-14 23:18:15,046 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:18:15,047 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268965913]
[2019-10-14 23:18:15,047 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:18:15,047 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:18:15,047 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:18:15,061 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:18:15,141 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:18:15,175 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:18:15,195 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:18:15,202 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-14 23:18:15,203 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268965913]
[2019-10-14 23:18:15,203 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:18:15,203 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2019-10-14 23:18:15,203 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065021963]
[2019-10-14 23:18:15,204 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 6 states
[2019-10-14 23:18:15,204 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:18:15,204 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2019-10-14 23:18:15,205 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2019-10-14 23:18:15,205 INFO  L87              Difference]: Start difference. First operand 848 states and 1197 transitions. Second operand 6 states.
[2019-10-14 23:18:17,676 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:18:17,676 INFO  L93              Difference]: Finished difference Result 1081 states and 1565 transitions.
[2019-10-14 23:18:17,676 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2019-10-14 23:18:17,677 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 40
[2019-10-14 23:18:17,677 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:18:17,683 INFO  L225             Difference]: With dead ends: 1081
[2019-10-14 23:18:17,684 INFO  L226             Difference]: Without dead ends: 1061
[2019-10-14 23:18:17,684 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56
[2019-10-14 23:18:17,686 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1061 states.
[2019-10-14 23:18:17,744 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1061 to 874.
[2019-10-14 23:18:17,745 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 874 states.
[2019-10-14 23:18:17,748 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 874 states to 874 states and 1232 transitions.
[2019-10-14 23:18:17,748 INFO  L78                 Accepts]: Start accepts. Automaton has 874 states and 1232 transitions. Word has length 40
[2019-10-14 23:18:17,750 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:18:17,751 INFO  L462      AbstractCegarLoop]: Abstraction has 874 states and 1232 transitions.
[2019-10-14 23:18:17,751 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2019-10-14 23:18:17,751 INFO  L276                IsEmpty]: Start isEmpty. Operand 874 states and 1232 transitions.
[2019-10-14 23:18:17,754 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 47
[2019-10-14 23:18:17,754 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:18:17,754 INFO  L380         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-14 23:18:17,755 INFO  L410      AbstractCegarLoop]: === Iteration 9 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:18:17,755 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:18:17,755 INFO  L82        PathProgramCache]: Analyzing trace with hash -539598420, now seen corresponding path program 1 times
[2019-10-14 23:18:17,755 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:18:17,755 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506686218]
[2019-10-14 23:18:17,756 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:18:17,756 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:18:17,756 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:18:17,777 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:18:17,871 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:18:17,904 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:18:17,925 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:18:17,936 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:18:17,940 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-14 23:18:17,941 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506686218]
[2019-10-14 23:18:17,941 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:18:17,941 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2019-10-14 23:18:17,941 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600259890]
[2019-10-14 23:18:17,942 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 7 states
[2019-10-14 23:18:17,942 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:18:17,942 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2019-10-14 23:18:17,942 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2019-10-14 23:18:17,942 INFO  L87              Difference]: Start difference. First operand 874 states and 1232 transitions. Second operand 7 states.
[2019-10-14 23:18:21,333 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:18:21,333 INFO  L93              Difference]: Finished difference Result 1253 states and 1805 transitions.
[2019-10-14 23:18:21,334 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2019-10-14 23:18:21,334 INFO  L78                 Accepts]: Start accepts. Automaton has 7 states. Word has length 46
[2019-10-14 23:18:21,334 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:18:21,341 INFO  L225             Difference]: With dead ends: 1253
[2019-10-14 23:18:21,341 INFO  L226             Difference]: Without dead ends: 1028
[2019-10-14 23:18:21,342 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72
[2019-10-14 23:18:21,344 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1028 states.
[2019-10-14 23:18:21,407 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 874.
[2019-10-14 23:18:21,408 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 874 states.
[2019-10-14 23:18:21,411 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 874 states to 874 states and 1231 transitions.
[2019-10-14 23:18:21,412 INFO  L78                 Accepts]: Start accepts. Automaton has 874 states and 1231 transitions. Word has length 46
[2019-10-14 23:18:21,412 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:18:21,412 INFO  L462      AbstractCegarLoop]: Abstraction has 874 states and 1231 transitions.
[2019-10-14 23:18:21,413 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 7 states.
[2019-10-14 23:18:21,413 INFO  L276                IsEmpty]: Start isEmpty. Operand 874 states and 1231 transitions.
[2019-10-14 23:18:21,415 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 48
[2019-10-14 23:18:21,415 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:18:21,415 INFO  L380         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-14 23:18:21,416 INFO  L410      AbstractCegarLoop]: === Iteration 10 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:18:21,416 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:18:21,416 INFO  L82        PathProgramCache]: Analyzing trace with hash 1793960754, now seen corresponding path program 1 times
[2019-10-14 23:18:21,416 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:18:21,417 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378207155]
[2019-10-14 23:18:21,417 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:18:21,417 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:18:21,417 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:18:21,435 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:18:21,514 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:18:21,550 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:18:21,575 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:18:21,591 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:18:21,608 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-14 23:18:21,609 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378207155]
[2019-10-14 23:18:21,610 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:18:21,610 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2019-10-14 23:18:21,610 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097555655]
[2019-10-14 23:18:21,611 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 8 states
[2019-10-14 23:18:21,611 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:18:21,611 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2019-10-14 23:18:21,611 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2019-10-14 23:18:21,612 INFO  L87              Difference]: Start difference. First operand 874 states and 1231 transitions. Second operand 8 states.