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-2.c


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


This is Ultimate 0.1.24-13a467a-m
[2019-10-14 23:17:48,774 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2019-10-14 23:17:48,777 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2019-10-14 23:17:48,789 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2019-10-14 23:17:48,789 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2019-10-14 23:17:48,790 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2019-10-14 23:17:48,791 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2019-10-14 23:17:48,793 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2019-10-14 23:17:48,795 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2019-10-14 23:17:48,796 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2019-10-14 23:17:48,797 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2019-10-14 23:17:48,798 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2019-10-14 23:17:48,798 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2019-10-14 23:17:48,799 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2019-10-14 23:17:48,800 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2019-10-14 23:17:48,801 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2019-10-14 23:17:48,802 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-10-14 23:17:48,803 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-10-14 23:17:48,804 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-10-14 23:17:48,806 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2019-10-14 23:17:48,808 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2019-10-14 23:17:48,809 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2019-10-14 23:17:48,810 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2019-10-14 23:17:48,811 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2019-10-14 23:17:48,813 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2019-10-14 23:17:48,813 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2019-10-14 23:17:48,813 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2019-10-14 23:17:48,814 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2019-10-14 23:17:48,814 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2019-10-14 23:17:48,816 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2019-10-14 23:17:48,816 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2019-10-14 23:17:48,817 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2019-10-14 23:17:48,818 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2019-10-14 23:17:48,818 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2019-10-14 23:17:48,820 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2019-10-14 23:17:48,821 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2019-10-14 23:17:48,822 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2019-10-14 23:17:48,822 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2019-10-14 23:17:48,823 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2019-10-14 23:17:48,827 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2019-10-14 23:17:48,827 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 23:17:48,850 INFO  L113        SettingsManager]: Loading preferences was successful
[2019-10-14 23:17:48,851 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2019-10-14 23:17:48,852 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-10-14 23:17:48,852 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2019-10-14 23:17:48,853 INFO  L138        SettingsManager]:  * Use SBE=true
[2019-10-14 23:17:48,853 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-10-14 23:17:48,853 INFO  L138        SettingsManager]:  * sizeof long=4
[2019-10-14 23:17:48,853 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2019-10-14 23:17:48,853 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2019-10-14 23:17:48,854 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2019-10-14 23:17:48,854 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2019-10-14 23:17:48,855 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-10-14 23:17:48,855 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2019-10-14 23:17:48,855 INFO  L138        SettingsManager]:  * sizeof long double=12
[2019-10-14 23:17:48,855 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2019-10-14 23:17:48,856 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2019-10-14 23:17:48,856 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2019-10-14 23:17:48,856 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-10-14 23:17:48,856 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2019-10-14 23:17:48,856 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2019-10-14 23:17:48,857 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2019-10-14 23:17:48,857 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-10-14 23:17:48,857 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-10-14 23:17:48,857 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2019-10-14 23:17:48,858 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-10-14 23:17:48,858 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2019-10-14 23:17:48,858 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-10-14 23:17:48,858 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-10-14 23:17:48,858 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2019-10-14 23:17:49,129 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2019-10-14 23:17:49,142 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-10-14 23:17:49,145 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-10-14 23:17:49,147 INFO  L271        PluginConnector]: Initializing CDTParser...
[2019-10-14 23:17:49,147 INFO  L275        PluginConnector]: CDTParser initialized
[2019-10-14 23:17:49,148 INFO  L428   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ntdrivers-simplified/cdaudio_simpl1.cil-2.c
[2019-10-14 23:17:49,218 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce8b695fc/05df631492d3437491e9be0de7e1bbf8/FLAG3dffff485
[2019-10-14 23:17:49,820 INFO  L306              CDTParser]: Found 1 translation units.
[2019-10-14 23:17:49,823 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ntdrivers-simplified/cdaudio_simpl1.cil-2.c
[2019-10-14 23:17:49,846 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce8b695fc/05df631492d3437491e9be0de7e1bbf8/FLAG3dffff485
[2019-10-14 23:17:50,082 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce8b695fc/05df631492d3437491e9be0de7e1bbf8
[2019-10-14 23:17:50,095 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-10-14 23:17:50,097 INFO  L131        ToolchainWalker]: Walking toolchain with 4 elements.
[2019-10-14 23:17:50,100 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-10-14 23:17:50,100 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-10-14 23:17:50,104 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2019-10-14 23:17:50,105 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:17:50" (1/1) ...
[2019-10-14 23:17:50,108 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fffa5f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:17:50, skipping insertion in model container
[2019-10-14 23:17:50,108 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:17:50" (1/1) ...
[2019-10-14 23:17:50,116 INFO  L142         MainTranslator]: Starting translation in SV-COMP mode 
[2019-10-14 23:17:50,194 INFO  L173         MainTranslator]: Built tables and reachable declarations
[2019-10-14 23:17:50,723 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-10-14 23:17:50,728 INFO  L188         MainTranslator]: Completed pre-run
[2019-10-14 23:17:50,944 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-10-14 23:17:50,972 INFO  L192         MainTranslator]: Completed translation
[2019-10-14 23:17:50,972 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:17:50 WrapperNode
[2019-10-14 23:17:50,972 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-10-14 23:17:50,973 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-10-14 23:17:50,973 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2019-10-14 23:17:50,973 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2019-10-14 23:17:50,988 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:17:50" (1/1) ...
[2019-10-14 23:17:50,988 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:17:50" (1/1) ...
[2019-10-14 23:17:51,032 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:17:50" (1/1) ...
[2019-10-14 23:17:51,033 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:17:50" (1/1) ...
[2019-10-14 23:17:51,101 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:17:50" (1/1) ...
[2019-10-14 23:17:51,140 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:17:50" (1/1) ...
[2019-10-14 23:17:51,146 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:17:50" (1/1) ...
[2019-10-14 23:17:51,157 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-10-14 23:17:51,157 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-10-14 23:17:51,158 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2019-10-14 23:17:51,158 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2019-10-14 23:17:51,159 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:17:50" (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 23:17:51,224 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-10-14 23:17:51,225 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-10-14 23:17:51,225 INFO  L138     BoogieDeclarations]: Found implementation of procedure errorFn
[2019-10-14 23:17:51,225 INFO  L138     BoogieDeclarations]: Found implementation of procedure _BLAST_init
[2019-10-14 23:17:51,225 INFO  L138     BoogieDeclarations]: Found implementation of procedure SendSrbSynchronous
[2019-10-14 23:17:51,225 INFO  L138     BoogieDeclarations]: Found implementation of procedure CdAudioSignalCompletion
[2019-10-14 23:17:51,226 INFO  L138     BoogieDeclarations]: Found implementation of procedure CdAudioStartDevice
[2019-10-14 23:17:51,226 INFO  L138     BoogieDeclarations]: Found implementation of procedure CdAudioPnp
[2019-10-14 23:17:51,226 INFO  L138     BoogieDeclarations]: Found implementation of procedure CdAudioDeviceControl
[2019-10-14 23:17:51,226 INFO  L138     BoogieDeclarations]: Found implementation of procedure CdAudioSendToNextDriver
[2019-10-14 23:17:51,226 INFO  L138     BoogieDeclarations]: Found implementation of procedure CdAudioIsPlayActive
[2019-10-14 23:17:51,226 INFO  L138     BoogieDeclarations]: Found implementation of procedure CdAudio535DeviceControl
[2019-10-14 23:17:51,227 INFO  L138     BoogieDeclarations]: Found implementation of procedure AG_SetStatusAndReturn
[2019-10-14 23:17:51,227 INFO  L138     BoogieDeclarations]: Found implementation of procedure CdAudio435DeviceControl
[2019-10-14 23:17:51,227 INFO  L138     BoogieDeclarations]: Found implementation of procedure CdAudioAtapiDeviceControl
[2019-10-14 23:17:51,227 INFO  L138     BoogieDeclarations]: Found implementation of procedure HpCdrProcessLastSession
[2019-10-14 23:17:51,227 INFO  L138     BoogieDeclarations]: Found implementation of procedure HPCdrCompletion
[2019-10-14 23:17:51,228 INFO  L138     BoogieDeclarations]: Found implementation of procedure CdAudioHPCdrDeviceControl
[2019-10-14 23:17:51,228 INFO  L138     BoogieDeclarations]: Found implementation of procedure CdAudioForwardIrpSynchronous
[2019-10-14 23:17:51,228 INFO  L138     BoogieDeclarations]: Found implementation of procedure CdAudioUnload
[2019-10-14 23:17:51,228 INFO  L138     BoogieDeclarations]: Found implementation of procedure CdAudioPower
[2019-10-14 23:17:51,228 INFO  L138     BoogieDeclarations]: Found implementation of procedure stub_driver_init
[2019-10-14 23:17:51,228 INFO  L138     BoogieDeclarations]: Found implementation of procedure main
[2019-10-14 23:17:51,228 INFO  L138     BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired
[2019-10-14 23:17:51,229 INFO  L138     BoogieDeclarations]: Found implementation of procedure IofCallDriver
[2019-10-14 23:17:51,229 INFO  L138     BoogieDeclarations]: Found implementation of procedure IofCompleteRequest
[2019-10-14 23:17:51,229 INFO  L138     BoogieDeclarations]: Found implementation of procedure KeSetEvent
[2019-10-14 23:17:51,229 INFO  L138     BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject
[2019-10-14 23:17:51,229 INFO  L138     BoogieDeclarations]: Found implementation of procedure PoCallDriver
[2019-10-14 23:17:51,229 INFO  L138     BoogieDeclarations]: Found implementation of procedure ZwClose
[2019-10-14 23:17:51,230 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-10-14 23:17:51,230 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char
[2019-10-14 23:17:51,230 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2019-10-14 23:17:51,230 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long
[2019-10-14 23:17:51,230 INFO  L130     BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer
[2019-10-14 23:17:51,230 INFO  L130     BoogieDeclarations]: Found specification of procedure SendSrbSynchronous
[2019-10-14 23:17:51,231 INFO  L130     BoogieDeclarations]: Found specification of procedure CdAudioSignalCompletion
[2019-10-14 23:17:51,231 INFO  L130     BoogieDeclarations]: Found specification of procedure CdAudioStartDevice
[2019-10-14 23:17:51,231 INFO  L130     BoogieDeclarations]: Found specification of procedure CdAudioPnp
[2019-10-14 23:17:51,231 INFO  L130     BoogieDeclarations]: Found specification of procedure CdAudioDeviceControl
[2019-10-14 23:17:51,231 INFO  L130     BoogieDeclarations]: Found specification of procedure CdAudioSendToNextDriver
[2019-10-14 23:17:51,231 INFO  L130     BoogieDeclarations]: Found specification of procedure CdAudioIsPlayActive
[2019-10-14 23:17:51,232 INFO  L130     BoogieDeclarations]: Found specification of procedure CdAudio535DeviceControl
[2019-10-14 23:17:51,232 INFO  L130     BoogieDeclarations]: Found specification of procedure AG_SetStatusAndReturn
[2019-10-14 23:17:51,232 INFO  L130     BoogieDeclarations]: Found specification of procedure CdAudio435DeviceControl
[2019-10-14 23:17:51,232 INFO  L130     BoogieDeclarations]: Found specification of procedure CdAudioAtapiDeviceControl
[2019-10-14 23:17:51,232 INFO  L130     BoogieDeclarations]: Found specification of procedure HPCdrCompletion
[2019-10-14 23:17:51,232 INFO  L130     BoogieDeclarations]: Found specification of procedure CdAudioHPCdrDeviceControl
[2019-10-14 23:17:51,232 INFO  L130     BoogieDeclarations]: Found specification of procedure CdAudioForwardIrpSynchronous
[2019-10-14 23:17:51,233 INFO  L130     BoogieDeclarations]: Found specification of procedure CdAudioPower
[2019-10-14 23:17:51,233 INFO  L130     BoogieDeclarations]: Found specification of procedure IofCallDriver
[2019-10-14 23:17:51,233 INFO  L130     BoogieDeclarations]: Found specification of procedure KeSetEvent
[2019-10-14 23:17:51,233 INFO  L130     BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject
[2019-10-14 23:17:51,233 INFO  L130     BoogieDeclarations]: Found specification of procedure PoCallDriver
[2019-10-14 23:17:51,233 INFO  L130     BoogieDeclarations]: Found specification of procedure ZwClose
[2019-10-14 23:17:51,233 INFO  L130     BoogieDeclarations]: Found specification of procedure IofCompleteRequest
[2019-10-14 23:17:51,234 INFO  L130     BoogieDeclarations]: Found specification of procedure errorFn
[2019-10-14 23:17:51,234 INFO  L130     BoogieDeclarations]: Found specification of procedure _BLAST_init
[2019-10-14 23:17:51,234 INFO  L130     BoogieDeclarations]: Found specification of procedure HpCdrProcessLastSession
[2019-10-14 23:17:51,234 INFO  L130     BoogieDeclarations]: Found specification of procedure CdAudioUnload
[2019-10-14 23:17:51,234 INFO  L130     BoogieDeclarations]: Found specification of procedure stub_driver_init
[2019-10-14 23:17:51,234 INFO  L130     BoogieDeclarations]: Found specification of procedure main
[2019-10-14 23:17:51,234 INFO  L130     BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired
[2019-10-14 23:17:51,235 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-10-14 23:17:51,235 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-10-14 23:17:51,850 WARN  L732   $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2019-10-14 23:17:51,977 INFO  L685   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume !false;
[2019-10-14 23:17:51,978 INFO  L685   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume false;
[2019-10-14 23:17:51,989 WARN  L732   $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2019-10-14 23:17:52,041 INFO  L685   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume !false;
[2019-10-14 23:17:52,042 INFO  L685   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume false;
[2019-10-14 23:17:52,067 WARN  L732   $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2019-10-14 23:17:52,087 INFO  L685   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false;
[2019-10-14 23:17:52,087 INFO  L685   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false;
[2019-10-14 23:17:52,185 WARN  L732   $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2019-10-14 23:17:52,235 INFO  L685   $ProcedureCfgBuilder]: dead code at ProgramPoint L304: #res := 0;
[2019-10-14 23:17:52,235 INFO  L685   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume !false;
[2019-10-14 23:17:52,235 INFO  L685   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume false;
[2019-10-14 23:17:52,241 WARN  L732   $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2019-10-14 23:17:52,458 INFO  L685   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume false;
[2019-10-14 23:17:52,458 INFO  L685   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##22: assume !false;
[2019-10-14 23:17:52,461 WARN  L732   $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2019-10-14 23:17:52,493 INFO  L685   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false;
[2019-10-14 23:17:52,493 INFO  L685   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false;
[2019-10-14 23:17:52,524 WARN  L732   $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2019-10-14 23:17:52,550 INFO  L685   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false;
[2019-10-14 23:17:52,550 INFO  L685   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false;
[2019-10-14 23:17:52,555 WARN  L732   $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2019-10-14 23:17:52,736 INFO  L685   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume !false;
[2019-10-14 23:17:52,737 INFO  L685   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume false;
[2019-10-14 23:17:52,752 WARN  L732   $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2019-10-14 23:17:52,757 INFO  L685   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false;
[2019-10-14 23:17:52,758 INFO  L685   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false;
[2019-10-14 23:17:52,771 INFO  L279             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-10-14 23:17:52,772 INFO  L284             CfgBuilder]: Removed 1 assume(true) statements.
[2019-10-14 23:17:52,773 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:17:52 BoogieIcfgContainer
[2019-10-14 23:17:52,774 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-10-14 23:17:52,775 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-10-14 23:17:52,775 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2019-10-14 23:17:52,778 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2019-10-14 23:17:52,778 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:17:50" (1/3) ...
[2019-10-14 23:17:52,779 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9bb138c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:17:52, skipping insertion in model container
[2019-10-14 23:17:52,779 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:17:50" (2/3) ...
[2019-10-14 23:17:52,779 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9bb138c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:17:52, skipping insertion in model container
[2019-10-14 23:17:52,779 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:17:52" (3/3) ...
[2019-10-14 23:17:52,783 INFO  L109   eAbstractionObserver]: Analyzing ICFG cdaudio_simpl1.cil-2.c
[2019-10-14 23:17:52,792 INFO  L152   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-10-14 23:17:52,801 INFO  L164   ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2019-10-14 23:17:52,812 INFO  L249      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2019-10-14 23:17:52,843 INFO  L373      AbstractCegarLoop]: Interprodecural is true
[2019-10-14 23:17:52,843 INFO  L374      AbstractCegarLoop]: Hoare is true
[2019-10-14 23:17:52,843 INFO  L375      AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-10-14 23:17:52,844 INFO  L376      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-10-14 23:17:52,844 INFO  L377      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-10-14 23:17:52,844 INFO  L378      AbstractCegarLoop]: Difference is false
[2019-10-14 23:17:52,844 INFO  L379      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-10-14 23:17:52,844 INFO  L383      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-10-14 23:17:52,874 INFO  L276                IsEmpty]: Start isEmpty. Operand 515 states.
[2019-10-14 23:17:52,881 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2019-10-14 23:17:52,881 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:17:52,882 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 23:17:52,884 INFO  L410      AbstractCegarLoop]: === Iteration 1 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:17:52,889 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:17:52,890 INFO  L82        PathProgramCache]: Analyzing trace with hash 1001295975, now seen corresponding path program 1 times
[2019-10-14 23:17:52,898 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:17:52,899 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241537497]
[2019-10-14 23:17:52,899 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:17:52,899 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:17:52,900 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:17:53,029 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:17:53,204 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:17:53,286 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:17:53,325 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 23:17:53,326 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241537497]
[2019-10-14 23:17:53,329 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:17:53,329 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-10-14 23:17:53,329 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140909678]
[2019-10-14 23:17:53,338 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-10-14 23:17:53,338 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:17:53,354 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-10-14 23:17:53,358 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2019-10-14 23:17:53,361 INFO  L87              Difference]: Start difference. First operand 515 states. Second operand 5 states.
[2019-10-14 23:17:53,528 WARN  L191               SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 68
[2019-10-14 23:17:56,221 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:17:56,222 INFO  L93              Difference]: Finished difference Result 1043 states and 1675 transitions.
[2019-10-14 23:17:56,223 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2019-10-14 23:17:56,225 INFO  L78                 Accepts]: Start accepts. Automaton has 5 states. Word has length 20
[2019-10-14 23:17:56,226 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:17:56,263 INFO  L225             Difference]: With dead ends: 1043
[2019-10-14 23:17:56,263 INFO  L226             Difference]: Without dead ends: 663
[2019-10-14 23:17:56,278 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 23:17:56,302 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 663 states.
[2019-10-14 23:17:56,482 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 507.
[2019-10-14 23:17:56,483 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 507 states.
[2019-10-14 23:17:56,488 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 737 transitions.
[2019-10-14 23:17:56,490 INFO  L78                 Accepts]: Start accepts. Automaton has 507 states and 737 transitions. Word has length 20
[2019-10-14 23:17:56,491 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:17:56,491 INFO  L462      AbstractCegarLoop]: Abstraction has 507 states and 737 transitions.
[2019-10-14 23:17:56,491 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 5 states.
[2019-10-14 23:17:56,491 INFO  L276                IsEmpty]: Start isEmpty. Operand 507 states and 737 transitions.
[2019-10-14 23:17:56,492 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2019-10-14 23:17:56,493 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:17:56,493 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 23:17:56,493 INFO  L410      AbstractCegarLoop]: === Iteration 2 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:17:56,493 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:17:56,494 INFO  L82        PathProgramCache]: Analyzing trace with hash 1234723898, now seen corresponding path program 1 times
[2019-10-14 23:17:56,494 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:17:56,494 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064978352]
[2019-10-14 23:17:56,494 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:17:56,494 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:17:56,495 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:17:56,556 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:17:56,713 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:17:56,766 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:17:56,793 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:17:56,804 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 23:17:56,804 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064978352]
[2019-10-14 23:17:56,804 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:17:56,805 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2019-10-14 23:17:56,805 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031658034]
[2019-10-14 23:17:56,806 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 6 states
[2019-10-14 23:17:56,807 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:17:56,807 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2019-10-14 23:17:56,810 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2019-10-14 23:17:56,810 INFO  L87              Difference]: Start difference. First operand 507 states and 737 transitions. Second operand 6 states.
[2019-10-14 23:18:00,517 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:18:00,517 INFO  L93              Difference]: Finished difference Result 961 states and 1420 transitions.
[2019-10-14 23:18:00,517 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2019-10-14 23:18:00,518 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 25
[2019-10-14 23:18:00,518 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:18:00,533 INFO  L225             Difference]: With dead ends: 961
[2019-10-14 23:18:00,533 INFO  L226             Difference]: Without dead ends: 842
[2019-10-14 23:18:00,535 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 23:18:00,538 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 842 states.
[2019-10-14 23:18:00,634 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 842 to 662.
[2019-10-14 23:18:00,634 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 662 states.
[2019-10-14 23:18:00,641 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 961 transitions.
[2019-10-14 23:18:00,642 INFO  L78                 Accepts]: Start accepts. Automaton has 662 states and 961 transitions. Word has length 25
[2019-10-14 23:18:00,643 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:18:00,643 INFO  L462      AbstractCegarLoop]: Abstraction has 662 states and 961 transitions.
[2019-10-14 23:18:00,643 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2019-10-14 23:18:00,643 INFO  L276                IsEmpty]: Start isEmpty. Operand 662 states and 961 transitions.
[2019-10-14 23:18:00,656 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 31
[2019-10-14 23:18:00,656 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:18:00,656 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 23:18:00,656 INFO  L410      AbstractCegarLoop]: === Iteration 3 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:18:00,657 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:18:00,657 INFO  L82        PathProgramCache]: Analyzing trace with hash 1338407833, now seen corresponding path program 1 times
[2019-10-14 23:18:00,657 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:18:00,659 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850072786]
[2019-10-14 23:18:00,659 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:18:00,659 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:18:00,660 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:18:00,715 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:18:00,822 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:18:00,877 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:18:00,900 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:18:00,920 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 23:18:00,921 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850072786]
[2019-10-14 23:18:00,921 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:18:00,921 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2019-10-14 23:18:00,921 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470207593]
[2019-10-14 23:18:00,922 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 6 states
[2019-10-14 23:18:00,922 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:18:00,922 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2019-10-14 23:18:00,923 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2019-10-14 23:18:00,923 INFO  L87              Difference]: Start difference. First operand 662 states and 961 transitions. Second operand 6 states.
[2019-10-14 23:18:03,732 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:18:03,732 INFO  L93              Difference]: Finished difference Result 1142 states and 1641 transitions.
[2019-10-14 23:18:03,734 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2019-10-14 23:18:03,734 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 30
[2019-10-14 23:18:03,734 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:18:03,743 INFO  L225             Difference]: With dead ends: 1142
[2019-10-14 23:18:03,743 INFO  L226             Difference]: Without dead ends: 966
[2019-10-14 23:18:03,744 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 23:18:03,746 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 966 states.
[2019-10-14 23:18:03,806 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 787.
[2019-10-14 23:18:03,806 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 787 states.
[2019-10-14 23:18:03,811 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 1132 transitions.
[2019-10-14 23:18:03,811 INFO  L78                 Accepts]: Start accepts. Automaton has 787 states and 1132 transitions. Word has length 30
[2019-10-14 23:18:03,812 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:18:03,812 INFO  L462      AbstractCegarLoop]: Abstraction has 787 states and 1132 transitions.
[2019-10-14 23:18:03,812 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2019-10-14 23:18:03,812 INFO  L276                IsEmpty]: Start isEmpty. Operand 787 states and 1132 transitions.
[2019-10-14 23:18:03,814 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2019-10-14 23:18:03,814 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:18:03,814 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 23:18:03,814 INFO  L410      AbstractCegarLoop]: === Iteration 4 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:18:03,815 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:18:03,815 INFO  L82        PathProgramCache]: Analyzing trace with hash 817062638, now seen corresponding path program 1 times
[2019-10-14 23:18:03,815 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:18:03,815 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573797608]
[2019-10-14 23:18:03,815 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:18:03,816 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:18:03,816 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:18:03,832 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:18:03,911 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:18:03,951 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:18:03,972 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:18:03,976 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 23:18:03,977 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573797608]
[2019-10-14 23:18:03,977 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:18:03,977 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2019-10-14 23:18:03,978 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638164895]
[2019-10-14 23:18:03,978 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 6 states
[2019-10-14 23:18:03,978 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:18:03,979 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2019-10-14 23:18:03,979 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2019-10-14 23:18:03,979 INFO  L87              Difference]: Start difference. First operand 787 states and 1132 transitions. Second operand 6 states.
[2019-10-14 23:18:08,061 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:18:08,061 INFO  L93              Difference]: Finished difference Result 1624 states and 2440 transitions.
[2019-10-14 23:18:08,062 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2019-10-14 23:18:08,062 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 31
[2019-10-14 23:18:08,062 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:18:08,071 INFO  L225             Difference]: With dead ends: 1624
[2019-10-14 23:18:08,072 INFO  L226             Difference]: Without dead ends: 1340
[2019-10-14 23:18:08,074 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 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 23:18:08,076 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1340 states.
[2019-10-14 23:18:08,151 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1340 to 905.
[2019-10-14 23:18:08,151 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 905 states.
[2019-10-14 23:18:08,157 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 905 states to 905 states and 1345 transitions.
[2019-10-14 23:18:08,158 INFO  L78                 Accepts]: Start accepts. Automaton has 905 states and 1345 transitions. Word has length 31
[2019-10-14 23:18:08,158 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:18:08,158 INFO  L462      AbstractCegarLoop]: Abstraction has 905 states and 1345 transitions.
[2019-10-14 23:18:08,158 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2019-10-14 23:18:08,158 INFO  L276                IsEmpty]: Start isEmpty. Operand 905 states and 1345 transitions.
[2019-10-14 23:18:08,160 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 33
[2019-10-14 23:18:08,160 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:18:08,160 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 23:18:08,160 INFO  L410      AbstractCegarLoop]: === Iteration 5 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:18:08,161 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:18:08,161 INFO  L82        PathProgramCache]: Analyzing trace with hash -679253739, now seen corresponding path program 1 times
[2019-10-14 23:18:08,161 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:18:08,162 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619685979]
[2019-10-14 23:18:08,162 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:18:08,162 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:18:08,162 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:18:08,181 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:18:08,293 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:18:08,330 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:18:08,353 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:18:08,369 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 23:18:08,370 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619685979]
[2019-10-14 23:18:08,370 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:18:08,370 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2019-10-14 23:18:08,370 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496278700]
[2019-10-14 23:18:08,371 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 8 states
[2019-10-14 23:18:08,371 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:18:08,372 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2019-10-14 23:18:08,372 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2019-10-14 23:18:08,372 INFO  L87              Difference]: Start difference. First operand 905 states and 1345 transitions. Second operand 8 states.
[2019-10-14 23:18:12,775 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:18:12,775 INFO  L93              Difference]: Finished difference Result 1701 states and 2576 transitions.
[2019-10-14 23:18:12,776 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2019-10-14 23:18:12,776 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states. Word has length 32
[2019-10-14 23:18:12,776 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:18:12,783 INFO  L225             Difference]: With dead ends: 1701
[2019-10-14 23:18:12,784 INFO  L226             Difference]: Without dead ends: 1117
[2019-10-14 23:18:12,786 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 23:18:12,788 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1117 states.
[2019-10-14 23:18:12,850 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1117 to 833.
[2019-10-14 23:18:12,851 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 833 states.
[2019-10-14 23:18:12,854 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1200 transitions.
[2019-10-14 23:18:12,855 INFO  L78                 Accepts]: Start accepts. Automaton has 833 states and 1200 transitions. Word has length 32
[2019-10-14 23:18:12,855 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:18:12,855 INFO  L462      AbstractCegarLoop]: Abstraction has 833 states and 1200 transitions.
[2019-10-14 23:18:12,856 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 8 states.
[2019-10-14 23:18:12,856 INFO  L276                IsEmpty]: Start isEmpty. Operand 833 states and 1200 transitions.
[2019-10-14 23:18:12,858 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 37
[2019-10-14 23:18:12,858 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:18:12,858 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 23:18:12,858 INFO  L410      AbstractCegarLoop]: === Iteration 6 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:18:12,859 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:18:12,859 INFO  L82        PathProgramCache]: Analyzing trace with hash 891535335, now seen corresponding path program 1 times
[2019-10-14 23:18:12,859 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:18:12,859 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563353730]
[2019-10-14 23:18:12,859 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:18:12,860 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:18:12,860 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:18:12,885 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:18:13,021 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:18:13,065 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:18:13,109 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:18:13,113 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 23:18:13,113 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563353730]
[2019-10-14 23:18:13,115 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:18:13,115 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2019-10-14 23:18:13,115 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707101515]
[2019-10-14 23:18:13,116 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 6 states
[2019-10-14 23:18:13,116 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:18:13,116 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2019-10-14 23:18:13,116 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2019-10-14 23:18:13,117 INFO  L87              Difference]: Start difference. First operand 833 states and 1200 transitions. Second operand 6 states.
[2019-10-14 23:18:16,094 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:18:16,094 INFO  L93              Difference]: Finished difference Result 963 states and 1422 transitions.
[2019-10-14 23:18:16,095 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2019-10-14 23:18:16,095 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 36
[2019-10-14 23:18:16,096 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:18:16,106 INFO  L225             Difference]: With dead ends: 963
[2019-10-14 23:18:16,106 INFO  L226             Difference]: Without dead ends: 959
[2019-10-14 23:18:16,108 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2019-10-14 23:18:16,110 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 959 states.
[2019-10-14 23:18:16,209 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 832.
[2019-10-14 23:18:16,210 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 832 states.
[2019-10-14 23:18:16,215 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1197 transitions.
[2019-10-14 23:18:16,216 INFO  L78                 Accepts]: Start accepts. Automaton has 832 states and 1197 transitions. Word has length 36
[2019-10-14 23:18:16,216 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:18:16,217 INFO  L462      AbstractCegarLoop]: Abstraction has 832 states and 1197 transitions.
[2019-10-14 23:18:16,217 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2019-10-14 23:18:16,217 INFO  L276                IsEmpty]: Start isEmpty. Operand 832 states and 1197 transitions.
[2019-10-14 23:18:16,220 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 40
[2019-10-14 23:18:16,220 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:18:16,220 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 23:18:16,221 INFO  L410      AbstractCegarLoop]: === Iteration 7 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:18:16,225 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:18:16,225 INFO  L82        PathProgramCache]: Analyzing trace with hash 975145180, now seen corresponding path program 1 times
[2019-10-14 23:18:16,225 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:18:16,226 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767269045]
[2019-10-14 23:18:16,226 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:18:16,226 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:18:16,227 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:18:16,260 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:18:16,400 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:18:16,450 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:18:16,470 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:18:16,474 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 23:18:16,475 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767269045]
[2019-10-14 23:18:16,475 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:18:16,475 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2019-10-14 23:18:16,475 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157891123]
[2019-10-14 23:18:16,476 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 6 states
[2019-10-14 23:18:16,476 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:18:16,477 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2019-10-14 23:18:16,477 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2019-10-14 23:18:16,477 INFO  L87              Difference]: Start difference. First operand 832 states and 1197 transitions. Second operand 6 states.
[2019-10-14 23:18:20,508 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:18:20,509 INFO  L93              Difference]: Finished difference Result 1336 states and 1919 transitions.
[2019-10-14 23:18:20,509 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2019-10-14 23:18:20,509 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 39
[2019-10-14 23:18:20,510 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:18:20,517 INFO  L225             Difference]: With dead ends: 1336
[2019-10-14 23:18:20,518 INFO  L226             Difference]: Without dead ends: 1094
[2019-10-14 23:18:20,519 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2019-10-14 23:18:20,521 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1094 states.
[2019-10-14 23:18:20,584 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1094 to 846.
[2019-10-14 23:18:20,585 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 846 states.
[2019-10-14 23:18:20,588 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 846 states to 846 states and 1194 transitions.
[2019-10-14 23:18:20,589 INFO  L78                 Accepts]: Start accepts. Automaton has 846 states and 1194 transitions. Word has length 39
[2019-10-14 23:18:20,589 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:18:20,589 INFO  L462      AbstractCegarLoop]: Abstraction has 846 states and 1194 transitions.
[2019-10-14 23:18:20,589 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2019-10-14 23:18:20,589 INFO  L276                IsEmpty]: Start isEmpty. Operand 846 states and 1194 transitions.
[2019-10-14 23:18:20,592 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 41
[2019-10-14 23:18:20,592 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:18:20,592 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 23:18:20,592 INFO  L410      AbstractCegarLoop]: === Iteration 8 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:18:20,592 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:18:20,593 INFO  L82        PathProgramCache]: Analyzing trace with hash 2137693992, now seen corresponding path program 1 times
[2019-10-14 23:18:20,593 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:18:20,593 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77097721]
[2019-10-14 23:18:20,593 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:18:20,593 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:18:20,593 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:18:20,607 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:18:20,704 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:18:20,775 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:18:20,796 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:18:20,805 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 23:18:20,805 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77097721]
[2019-10-14 23:18:20,805 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:18:20,806 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2019-10-14 23:18:20,806 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030729694]
[2019-10-14 23:18:20,806 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 6 states
[2019-10-14 23:18:20,807 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:18:20,807 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2019-10-14 23:18:20,807 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2019-10-14 23:18:20,807 INFO  L87              Difference]: Start difference. First operand 846 states and 1194 transitions. Second operand 6 states.
[2019-10-14 23:18:23,320 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-14 23:18:23,320 INFO  L93              Difference]: Finished difference Result 1077 states and 1558 transitions.
[2019-10-14 23:18:23,320 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2019-10-14 23:18:23,321 INFO  L78                 Accepts]: Start accepts. Automaton has 6 states. Word has length 40
[2019-10-14 23:18:23,321 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-14 23:18:23,326 INFO  L225             Difference]: With dead ends: 1077
[2019-10-14 23:18:23,327 INFO  L226             Difference]: Without dead ends: 1059
[2019-10-14 23:18:23,328 INFO  L600         BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 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 23:18:23,329 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1059 states.
[2019-10-14 23:18:23,390 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1059 to 866.
[2019-10-14 23:18:23,390 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 866 states.
[2019-10-14 23:18:23,394 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1220 transitions.
[2019-10-14 23:18:23,394 INFO  L78                 Accepts]: Start accepts. Automaton has 866 states and 1220 transitions. Word has length 40
[2019-10-14 23:18:23,395 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-10-14 23:18:23,395 INFO  L462      AbstractCegarLoop]: Abstraction has 866 states and 1220 transitions.
[2019-10-14 23:18:23,395 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 6 states.
[2019-10-14 23:18:23,395 INFO  L276                IsEmpty]: Start isEmpty. Operand 866 states and 1220 transitions.
[2019-10-14 23:18:23,398 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 47
[2019-10-14 23:18:23,398 INFO  L372         BasicCegarLoop]: Found error trace
[2019-10-14 23:18:23,399 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 23:18:23,399 INFO  L410      AbstractCegarLoop]: === Iteration 9 === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-14 23:18:23,399 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-10-14 23:18:23,399 INFO  L82        PathProgramCache]: Analyzing trace with hash -1915119306, now seen corresponding path program 1 times
[2019-10-14 23:18:23,399 INFO  L157   tionRefinementEngine]: Executing refinement strategy CAMEL
[2019-10-14 23:18:23,400 INFO  L342   tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274800665]
[2019-10-14 23:18:23,400 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:18:23,400 INFO  L116   rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-14 23:18:23,400 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-14 23:18:23,418 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:18:23,499 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:18:23,535 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:18:23,555 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:18:23,564 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-14 23:18:23,569 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 23:18:23,570 INFO  L342   tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274800665]
[2019-10-14 23:18:23,570 INFO  L223   tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-14 23:18:23,570 INFO  L236   tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2019-10-14 23:18:23,571 INFO  L342   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793117572]
[2019-10-14 23:18:23,571 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 7 states
[2019-10-14 23:18:23,571 INFO  L137   tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2019-10-14 23:18:23,571 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2019-10-14 23:18:23,572 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2019-10-14 23:18:23,572 INFO  L87              Difference]: Start difference. First operand 866 states and 1220 transitions. Second operand 7 states.