/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--hisax--hisax_st5481.ko-entry_point.cil.out.i


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


This is Ultimate 0.1.24-6598664
[2019-11-24 01:18:09,161 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2019-11-24 01:18:09,164 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2019-11-24 01:18:09,175 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2019-11-24 01:18:09,176 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2019-11-24 01:18:09,177 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2019-11-24 01:18:09,178 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
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[2019-11-24 01:18:09,187 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2019-11-24 01:18:09,188 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-11-24 01:18:09,189 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-11-24 01:18:09,190 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-11-24 01:18:09,192 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2019-11-24 01:18:09,194 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2019-11-24 01:18:09,195 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
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[2019-11-24 01:18:09,199 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
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[2019-11-24 01:18:09,199 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
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[2019-11-24 01:18:09,201 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2019-11-24 01:18:09,201 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2019-11-24 01:18:09,202 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2019-11-24 01:18:09,202 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2019-11-24 01:18:09,203 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2019-11-24 01:18:09,204 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2019-11-24 01:18:09,205 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2019-11-24 01:18:09,205 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
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[2019-11-24 01:18:09,206 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2019-11-24 01:18:09,208 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2019-11-24 01:18:09,208 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf
[2019-11-24 01:18:09,223 INFO  L113        SettingsManager]: Loading preferences was successful
[2019-11-24 01:18:09,223 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2019-11-24 01:18:09,224 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2019-11-24 01:18:09,224 INFO  L138        SettingsManager]:  * User list type=DISABLED
[2019-11-24 01:18:09,225 INFO  L136        SettingsManager]: Preferences of Abstract Interpretation differ from their defaults:
[2019-11-24 01:18:09,225 INFO  L138        SettingsManager]:  * Explicit value domain=true
[2019-11-24 01:18:09,225 INFO  L138        SettingsManager]:  * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain
[2019-11-24 01:18:09,225 INFO  L138        SettingsManager]:  * Octagon Domain=false
[2019-11-24 01:18:09,225 INFO  L138        SettingsManager]:  * Abstract domain=CompoundDomain
[2019-11-24 01:18:09,225 INFO  L138        SettingsManager]:  * Check feasibility of abstract posts with an SMT solver=true
[2019-11-24 01:18:09,226 INFO  L138        SettingsManager]:  * Use the RCFG-of-the-future interface=true
[2019-11-24 01:18:09,226 INFO  L138        SettingsManager]:  * Interval Domain=false
[2019-11-24 01:18:09,226 INFO  L136        SettingsManager]: Preferences of Sifa differ from their defaults:
[2019-11-24 01:18:09,226 INFO  L138        SettingsManager]:  * Call Summarizer=TopInputCallSummarizer
[2019-11-24 01:18:09,226 INFO  L138        SettingsManager]:  * Simplification Technique=SIMPLIFY_QUICK
[2019-11-24 01:18:09,227 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-11-24 01:18:09,227 INFO  L138        SettingsManager]:  * sizeof long=4
[2019-11-24 01:18:09,227 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2019-11-24 01:18:09,228 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2019-11-24 01:18:09,228 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2019-11-24 01:18:09,228 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2019-11-24 01:18:09,228 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-11-24 01:18:09,228 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2019-11-24 01:18:09,229 INFO  L138        SettingsManager]:  * sizeof long double=12
[2019-11-24 01:18:09,229 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2019-11-24 01:18:09,229 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2019-11-24 01:18:09,229 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-11-24 01:18:09,229 INFO  L138        SettingsManager]:  * To the following directory=./dump/
[2019-11-24 01:18:09,230 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2019-11-24 01:18:09,230 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-11-24 01:18:09,230 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-11-24 01:18:09,230 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2019-11-24 01:18:09,230 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-11-24 01:18:09,230 INFO  L138        SettingsManager]:  * Trace refinement strategy=SIFA_TAIPAN
[2019-11-24 01:18:09,231 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-11-24 01:18:09,231 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-11-24 01:18:09,231 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2019-11-24 01:18:09,231 INFO  L138        SettingsManager]:  * Abstract interpretation Mode=USE_PREDICATES
[2019-11-24 01:18:09,513 INFO  L81    nceAwareModelManager]: Repository-Root is: /tmp
[2019-11-24 01:18:09,527 INFO  L258   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-11-24 01:18:09,532 INFO  L214   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-11-24 01:18:09,533 INFO  L271        PluginConnector]: Initializing CDTParser...
[2019-11-24 01:18:09,533 INFO  L275        PluginConnector]: CDTParser initialized
[2019-11-24 01:18:09,534 INFO  L428   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--hisax--hisax_st5481.ko-entry_point.cil.out.i
[2019-11-24 01:18:09,606 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d73dfb3c/ffafad0ad163401eb0df86764c7dd129/FLAG71f5c89f4
[2019-11-24 01:18:10,443 INFO  L306              CDTParser]: Found 1 translation units.
[2019-11-24 01:18:10,444 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--hisax--hisax_st5481.ko-entry_point.cil.out.i
[2019-11-24 01:18:10,479 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d73dfb3c/ffafad0ad163401eb0df86764c7dd129/FLAG71f5c89f4
[2019-11-24 01:18:10,963 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d73dfb3c/ffafad0ad163401eb0df86764c7dd129
[2019-11-24 01:18:10,972 INFO  L296   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-11-24 01:18:10,973 INFO  L131        ToolchainWalker]: Walking toolchain with 5 elements.
[2019-11-24 01:18:10,974 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-11-24 01:18:10,974 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-11-24 01:18:10,978 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2019-11-24 01:18:10,979 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:18:10" (1/1) ...
[2019-11-24 01:18:10,981 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5adeab26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:18:10, skipping insertion in model container
[2019-11-24 01:18:10,982 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:18:10" (1/1) ...
[2019-11-24 01:18:10,989 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2019-11-24 01:18:11,153 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2019-11-24 01:18:13,650 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-11-24 01:18:13,699 INFO  L203         MainTranslator]: Completed pre-run
[2019-11-24 01:18:14,200 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2019-11-24 01:18:14,383 INFO  L208         MainTranslator]: Completed translation
[2019-11-24 01:18:14,383 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:18:14 WrapperNode
[2019-11-24 01:18:14,384 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-11-24 01:18:14,385 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2019-11-24 01:18:14,385 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2019-11-24 01:18:14,385 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2019-11-24 01:18:14,394 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:18:14" (1/1) ...
[2019-11-24 01:18:14,468 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:18:14" (1/1) ...
[2019-11-24 01:18:14,736 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2019-11-24 01:18:14,736 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-11-24 01:18:14,736 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2019-11-24 01:18:14,737 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2019-11-24 01:18:14,746 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:18:14" (1/1) ...
[2019-11-24 01:18:14,747 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:18:14" (1/1) ...
[2019-11-24 01:18:14,804 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:18:14" (1/1) ...
[2019-11-24 01:18:14,805 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:18:14" (1/1) ...
[2019-11-24 01:18:15,086 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:18:14" (1/1) ...
[2019-11-24 01:18:15,141 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:18:14" (1/1) ...
[2019-11-24 01:18:15,178 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:18:14" (1/1) ...
[2019-11-24 01:18:15,211 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-11-24 01:18:15,211 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-11-24 01:18:15,211 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2019-11-24 01:18:15,211 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2019-11-24 01:18:15,212 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:18:14" (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
[2019-11-24 01:18:15,275 INFO  L130     BoogieDeclarations]: Found specification of procedure usb_ctrl_complete
[2019-11-24 01:18:15,275 INFO  L138     BoogieDeclarations]: Found implementation of procedure usb_ctrl_complete
[2019-11-24 01:18:15,276 INFO  L130     BoogieDeclarations]: Found specification of procedure dout_reset
[2019-11-24 01:18:15,276 INFO  L138     BoogieDeclarations]: Found implementation of procedure dout_reset
[2019-11-24 01:18:15,276 INFO  L130     BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$
[2019-11-24 01:18:15,276 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$
[2019-11-24 01:18:15,276 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_submit_urb
[2019-11-24 01:18:15,277 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_submit_urb
[2019-11-24 01:18:15,277 INFO  L130     BoogieDeclarations]: Found specification of procedure disconnect_st5481
[2019-11-24 01:18:15,277 INFO  L138     BoogieDeclarations]: Found implementation of procedure disconnect_st5481
[2019-11-24 01:18:15,277 INFO  L130     BoogieDeclarations]: Found specification of procedure usb_next_ctrl_msg
[2019-11-24 01:18:15,277 INFO  L138     BoogieDeclarations]: Found implementation of procedure usb_next_ctrl_msg
[2019-11-24 01:18:15,277 INFO  L130     BoogieDeclarations]: Found specification of procedure usb_b_out
[2019-11-24 01:18:15,278 INFO  L138     BoogieDeclarations]: Found implementation of procedure usb_b_out
[2019-11-24 01:18:15,278 INFO  L130     BoogieDeclarations]: Found specification of procedure st5481_usb_device_ctrl_msg
[2019-11-24 01:18:15,278 INFO  L138     BoogieDeclarations]: Found implementation of procedure st5481_usb_device_ctrl_msg
[2019-11-24 01:18:15,278 INFO  L130     BoogieDeclarations]: Found specification of procedure led_blink
[2019-11-24 01:18:15,278 INFO  L138     BoogieDeclarations]: Found implementation of procedure led_blink
[2019-11-24 01:18:15,279 INFO  L130     BoogieDeclarations]: Found specification of procedure st5481_in_mode
[2019-11-24 01:18:15,279 INFO  L138     BoogieDeclarations]: Found implementation of procedure st5481_in_mode
[2019-11-24 01:18:15,279 INFO  L130     BoogieDeclarations]: Found specification of procedure st5481_start_rcv
[2019-11-24 01:18:15,279 INFO  L138     BoogieDeclarations]: Found implementation of procedure st5481_start_rcv
[2019-11-24 01:18:15,279 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_23
[2019-11-24 01:18:15,279 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_23
[2019-11-24 01:18:15,279 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_24
[2019-11-24 01:18:15,280 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_24
[2019-11-24 01:18:15,280 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_29
[2019-11-24 01:18:15,280 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_29
[2019-11-24 01:18:15,280 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_25
[2019-11-24 01:18:15,280 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_25
[2019-11-24 01:18:15,280 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2019-11-24 01:18:15,280 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_27
[2019-11-24 01:18:15,281 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_27
[2019-11-24 01:18:15,281 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_28
[2019-11-24 01:18:15,281 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_28
[2019-11-24 01:18:15,281 INFO  L130     BoogieDeclarations]: Found specification of procedure ph_connect
[2019-11-24 01:18:15,281 INFO  L138     BoogieDeclarations]: Found implementation of procedure ph_connect
[2019-11-24 01:18:15,281 INFO  L130     BoogieDeclarations]: Found specification of procedure st5481B_mode
[2019-11-24 01:18:15,281 INFO  L138     BoogieDeclarations]: Found implementation of procedure st5481B_mode
[2019-11-24 01:18:15,281 INFO  L130     BoogieDeclarations]: Found specification of procedure B_L1L2
[2019-11-24 01:18:15,282 INFO  L138     BoogieDeclarations]: Found implementation of procedure B_L1L2
[2019-11-24 01:18:15,282 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~VOID
[2019-11-24 01:18:15,282 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~VOID
[2019-11-24 01:18:15,282 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_10
[2019-11-24 01:18:15,282 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_10
[2019-11-24 01:18:15,282 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2019-11-24 01:18:15,282 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_11
[2019-11-24 01:18:15,283 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_11
[2019-11-24 01:18:15,283 INFO  L130     BoogieDeclarations]: Found specification of procedure ph_disconnect
[2019-11-24 01:18:15,283 INFO  L138     BoogieDeclarations]: Found implementation of procedure ph_disconnect
[2019-11-24 01:18:15,283 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2019-11-24 01:18:15,283 INFO  L130     BoogieDeclarations]: Found specification of procedure l1_go_f6
[2019-11-24 01:18:15,283 INFO  L138     BoogieDeclarations]: Found implementation of procedure l1_go_f6
[2019-11-24 01:18:15,284 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$
[2019-11-24 01:18:15,284 INFO  L130     BoogieDeclarations]: Found specification of procedure l1_go_f7
[2019-11-24 01:18:15,284 INFO  L138     BoogieDeclarations]: Found implementation of procedure l1_go_f7
[2019-11-24 01:18:15,284 INFO  L130     BoogieDeclarations]: Found specification of procedure l1_go_f8
[2019-11-24 01:18:15,284 INFO  L138     BoogieDeclarations]: Found implementation of procedure l1_go_f8
[2019-11-24 01:18:15,284 INFO  L130     BoogieDeclarations]: Found specification of procedure st5481_b_l2l1
[2019-11-24 01:18:15,285 INFO  L138     BoogieDeclarations]: Found implementation of procedure st5481_b_l2l1
[2019-11-24 01:18:15,285 INFO  L130     BoogieDeclarations]: Found specification of procedure l1_go_f3
[2019-11-24 01:18:15,285 INFO  L138     BoogieDeclarations]: Found implementation of procedure l1_go_f3
[2019-11-24 01:18:15,285 INFO  L130     BoogieDeclarations]: Found specification of procedure dout_short_fifo
[2019-11-24 01:18:15,285 INFO  L138     BoogieDeclarations]: Found implementation of procedure dout_short_fifo
[2019-11-24 01:18:15,285 INFO  L130     BoogieDeclarations]: Found specification of procedure usb_in_complete
[2019-11-24 01:18:15,285 INFO  L138     BoogieDeclarations]: Found implementation of procedure usb_in_complete
[2019-11-24 01:18:15,286 INFO  L130     BoogieDeclarations]: Found specification of procedure usb_d_out_complete
[2019-11-24 01:18:15,286 INFO  L138     BoogieDeclarations]: Found implementation of procedure usb_d_out_complete
[2019-11-24 01:18:15,286 INFO  L130     BoogieDeclarations]: Found specification of procedure st5481B_start_xfer
[2019-11-24 01:18:15,286 INFO  L138     BoogieDeclarations]: Found implementation of procedure st5481B_start_xfer
[2019-11-24 01:18:15,286 INFO  L130     BoogieDeclarations]: Found specification of procedure st5481_usb_pipe_reset
[2019-11-24 01:18:15,286 INFO  L138     BoogieDeclarations]: Found implementation of procedure st5481_usb_pipe_reset
[2019-11-24 01:18:15,286 INFO  L130     BoogieDeclarations]: Found specification of procedure read~unchecked~int
[2019-11-24 01:18:15,287 INFO  L130     BoogieDeclarations]: Found specification of procedure dout_check_busy
[2019-11-24 01:18:15,287 INFO  L138     BoogieDeclarations]: Found implementation of procedure dout_check_busy
[2019-11-24 01:18:15,287 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int
[2019-11-24 01:18:15,287 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2019-11-24 01:18:15,287 INFO  L130     BoogieDeclarations]: Found specification of procedure usb_d_out
[2019-11-24 01:18:15,287 INFO  L138     BoogieDeclarations]: Found implementation of procedure usb_d_out
[2019-11-24 01:18:15,287 INFO  L130     BoogieDeclarations]: Found specification of procedure dout_long_den
[2019-11-24 01:18:15,288 INFO  L138     BoogieDeclarations]: Found implementation of procedure dout_long_den
[2019-11-24 01:18:15,288 INFO  L130     BoogieDeclarations]: Found specification of procedure dout_stop
[2019-11-24 01:18:15,288 INFO  L138     BoogieDeclarations]: Found implementation of procedure dout_stop
[2019-11-24 01:18:15,288 INFO  L130     BoogieDeclarations]: Found specification of procedure dout_underrun
[2019-11-24 01:18:15,288 INFO  L138     BoogieDeclarations]: Found implementation of procedure dout_underrun
[2019-11-24 01:18:15,288 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2019-11-24 01:18:15,288 INFO  L130     BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_31
[2019-11-24 01:18:15,289 INFO  L138     BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_31
[2019-11-24 01:18:15,289 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2019-11-24 01:18:15,289 INFO  L130     BoogieDeclarations]: Found specification of procedure usb_ctrl_msg
[2019-11-24 01:18:15,289 INFO  L138     BoogieDeclarations]: Found implementation of procedure usb_ctrl_msg
[2019-11-24 01:18:15,289 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2019-11-24 01:18:15,289 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID
[2019-11-24 01:18:15,289 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID
[2019-11-24 01:18:15,289 INFO  L130     BoogieDeclarations]: Found specification of procedure l1_activate
[2019-11-24 01:18:15,290 INFO  L138     BoogieDeclarations]: Found implementation of procedure l1_activate
[2019-11-24 01:18:15,290 INFO  L130     BoogieDeclarations]: Found specification of procedure l1_timer3
[2019-11-24 01:18:15,290 INFO  L138     BoogieDeclarations]: Found implementation of procedure l1_timer3
[2019-11-24 01:18:15,290 INFO  L130     BoogieDeclarations]: Found specification of procedure st5481_stop
[2019-11-24 01:18:15,290 INFO  L138     BoogieDeclarations]: Found implementation of procedure st5481_stop
[2019-11-24 01:18:15,290 INFO  L130     BoogieDeclarations]: Found specification of procedure dout_long_enable_fifo
[2019-11-24 01:18:15,290 INFO  L138     BoogieDeclarations]: Found implementation of procedure dout_long_enable_fifo
[2019-11-24 01:18:15,291 INFO  L130     BoogieDeclarations]: Found specification of procedure usb_b_out_complete
[2019-11-24 01:18:15,291 INFO  L138     BoogieDeclarations]: Found implementation of procedure usb_b_out_complete
[2019-11-24 01:18:15,291 INFO  L130     BoogieDeclarations]: Found specification of procedure usb_int_complete
[2019-11-24 01:18:15,291 INFO  L138     BoogieDeclarations]: Found implementation of procedure usb_int_complete
[2019-11-24 01:18:15,291 INFO  L130     BoogieDeclarations]: Found specification of procedure D_L1L2
[2019-11-24 01:18:15,291 INFO  L138     BoogieDeclarations]: Found implementation of procedure D_L1L2
[2019-11-24 01:18:15,291 INFO  L130     BoogieDeclarations]: Found specification of procedure dout_complete
[2019-11-24 01:18:15,292 INFO  L138     BoogieDeclarations]: Found implementation of procedure dout_complete
[2019-11-24 01:18:15,292 INFO  L130     BoogieDeclarations]: Found specification of procedure st5481_ph_command
[2019-11-24 01:18:15,292 INFO  L138     BoogieDeclarations]: Found implementation of procedure st5481_ph_command
[2019-11-24 01:18:15,292 INFO  L130     BoogieDeclarations]: Found specification of procedure dout_start_xmit
[2019-11-24 01:18:15,292 INFO  L138     BoogieDeclarations]: Found implementation of procedure dout_start_xmit
[2019-11-24 01:18:15,292 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2019-11-24 01:18:15,292 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-11-24 01:18:15,293 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-11-24 01:19:19,182 INFO  L279             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-11-24 01:19:19,183 INFO  L284             CfgBuilder]: Removed 857 assume(true) statements.
[2019-11-24 01:19:19,185 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:19:19 BoogieIcfgContainer
[2019-11-24 01:19:19,185 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-11-24 01:19:19,187 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-11-24 01:19:19,187 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2019-11-24 01:19:19,189 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2019-11-24 01:19:19,190 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:18:10" (1/3) ...
[2019-11-24 01:19:19,190 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73e217af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:19:19, skipping insertion in model container
[2019-11-24 01:19:19,190 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:18:14" (2/3) ...
[2019-11-24 01:19:19,191 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73e217af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:19:19, skipping insertion in model container
[2019-11-24 01:19:19,191 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:19:19" (3/3) ...
[2019-11-24 01:19:19,193 INFO  L109   eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--hisax--hisax_st5481.ko-entry_point.cil.out.i
[2019-11-24 01:19:19,202 INFO  L153   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-11-24 01:19:19,211 INFO  L165   ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations.
[2019-11-24 01:19:19,222 INFO  L249      AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2019-11-24 01:19:19,252 INFO  L373      AbstractCegarLoop]: Interprodecural is true
[2019-11-24 01:19:19,252 INFO  L374      AbstractCegarLoop]: Hoare is true
[2019-11-24 01:19:19,252 INFO  L375      AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-11-24 01:19:19,253 INFO  L376      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-11-24 01:19:19,253 INFO  L377      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-11-24 01:19:19,253 INFO  L378      AbstractCegarLoop]: Difference is false
[2019-11-24 01:19:19,253 INFO  L379      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-11-24 01:19:19,253 INFO  L383      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-11-24 01:19:19,289 INFO  L276                IsEmpty]: Start isEmpty. Operand 644 states.
[2019-11-24 01:19:19,294 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2019-11-24 01:19:19,294 INFO  L402         BasicCegarLoop]: Found error trace
[2019-11-24 01:19:19,295 INFO  L410         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-11-24 01:19:19,296 INFO  L410      AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-11-24 01:19:19,302 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-11-24 01:19:19,302 INFO  L82        PathProgramCache]: Analyzing trace with hash -689301301, now seen corresponding path program 1 times
[2019-11-24 01:19:19,312 INFO  L163   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-11-24 01:19:19,312 INFO  L348   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250130646]
[2019-11-24 01:19:19,312 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-11-24 01:19:19,945 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-24 01:19:20,206 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-24 01:19:20,207 INFO  L348   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250130646]
[2019-11-24 01:19:20,209 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-11-24 01:19:20,210 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2019-11-24 01:19:20,211 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148838578]
[2019-11-24 01:19:20,215 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 3 states
[2019-11-24 01:19:20,216 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2019-11-24 01:19:20,229 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2019-11-24 01:19:20,230 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-11-24 01:19:20,232 INFO  L87              Difference]: Start difference. First operand 644 states. Second operand 3 states.
[2019-11-24 01:19:24,086 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-11-24 01:19:24,086 INFO  L93              Difference]: Finished difference Result 1891 states and 3005 transitions.
[2019-11-24 01:19:24,087 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2019-11-24 01:19:24,088 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 11
[2019-11-24 01:19:24,089 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-11-24 01:19:24,132 INFO  L225             Difference]: With dead ends: 1891
[2019-11-24 01:19:24,132 INFO  L226             Difference]: Without dead ends: 1235
[2019-11-24 01:19:24,146 INFO  L630         BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-11-24 01:19:24,171 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1235 states.
[2019-11-24 01:19:24,314 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1235 to 1235.
[2019-11-24 01:19:24,315 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1235 states.
[2019-11-24 01:19:24,324 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1235 states to 1235 states and 1806 transitions.
[2019-11-24 01:19:24,326 INFO  L78                 Accepts]: Start accepts. Automaton has 1235 states and 1806 transitions. Word has length 11
[2019-11-24 01:19:24,327 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-11-24 01:19:24,327 INFO  L462      AbstractCegarLoop]: Abstraction has 1235 states and 1806 transitions.
[2019-11-24 01:19:24,327 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2019-11-24 01:19:24,327 INFO  L276                IsEmpty]: Start isEmpty. Operand 1235 states and 1806 transitions.
[2019-11-24 01:19:24,329 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2019-11-24 01:19:24,329 INFO  L402         BasicCegarLoop]: Found error trace
[2019-11-24 01:19:24,329 INFO  L410         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-11-24 01:19:24,330 INFO  L410      AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-11-24 01:19:24,330 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-11-24 01:19:24,330 INFO  L82        PathProgramCache]: Analyzing trace with hash -382221311, now seen corresponding path program 1 times
[2019-11-24 01:19:24,331 INFO  L163   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-11-24 01:19:24,331 INFO  L348   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17718566]
[2019-11-24 01:19:24,331 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-11-24 01:19:24,781 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-24 01:19:24,981 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-24 01:19:24,981 INFO  L348   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17718566]
[2019-11-24 01:19:24,981 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-11-24 01:19:24,982 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2019-11-24 01:19:24,982 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948248437]
[2019-11-24 01:19:24,983 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 3 states
[2019-11-24 01:19:24,984 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2019-11-24 01:19:24,984 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2019-11-24 01:19:24,984 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-11-24 01:19:24,984 INFO  L87              Difference]: Start difference. First operand 1235 states and 1806 transitions. Second operand 3 states.
[2019-11-24 01:19:25,943 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-11-24 01:19:25,943 INFO  L93              Difference]: Finished difference Result 2398 states and 3484 transitions.
[2019-11-24 01:19:25,945 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2019-11-24 01:19:25,945 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 19
[2019-11-24 01:19:25,945 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-11-24 01:19:25,968 INFO  L225             Difference]: With dead ends: 2398
[2019-11-24 01:19:25,969 INFO  L226             Difference]: Without dead ends: 2396
[2019-11-24 01:19:25,971 INFO  L630         BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-11-24 01:19:25,975 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2396 states.
[2019-11-24 01:19:26,081 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2396 to 2384.
[2019-11-24 01:19:26,081 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 2384 states.
[2019-11-24 01:19:26,096 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2384 states to 2384 states and 3471 transitions.
[2019-11-24 01:19:26,098 INFO  L78                 Accepts]: Start accepts. Automaton has 2384 states and 3471 transitions. Word has length 19
[2019-11-24 01:19:26,098 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-11-24 01:19:26,098 INFO  L462      AbstractCegarLoop]: Abstraction has 2384 states and 3471 transitions.
[2019-11-24 01:19:26,098 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2019-11-24 01:19:26,099 INFO  L276                IsEmpty]: Start isEmpty. Operand 2384 states and 3471 transitions.
[2019-11-24 01:19:26,103 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2019-11-24 01:19:26,103 INFO  L402         BasicCegarLoop]: Found error trace
[2019-11-24 01:19:26,103 INFO  L410         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-11-24 01:19:26,103 INFO  L410      AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-11-24 01:19:26,104 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-11-24 01:19:26,104 INFO  L82        PathProgramCache]: Analyzing trace with hash 1036043581, now seen corresponding path program 1 times
[2019-11-24 01:19:26,104 INFO  L163   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-11-24 01:19:26,104 INFO  L348   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992904835]
[2019-11-24 01:19:26,105 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-11-24 01:19:26,453 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-24 01:19:26,635 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-24 01:19:26,636 INFO  L348   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992904835]
[2019-11-24 01:19:26,636 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-11-24 01:19:26,636 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2019-11-24 01:19:26,636 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61755238]
[2019-11-24 01:19:26,637 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 3 states
[2019-11-24 01:19:26,637 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2019-11-24 01:19:26,637 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2019-11-24 01:19:26,638 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-11-24 01:19:26,638 INFO  L87              Difference]: Start difference. First operand 2384 states and 3471 transitions. Second operand 3 states.
[2019-11-24 01:19:26,733 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-11-24 01:19:26,733 INFO  L93              Difference]: Finished difference Result 2384 states and 3471 transitions.
[2019-11-24 01:19:26,734 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2019-11-24 01:19:26,734 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 20
[2019-11-24 01:19:26,734 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-11-24 01:19:26,754 INFO  L225             Difference]: With dead ends: 2384
[2019-11-24 01:19:26,754 INFO  L226             Difference]: Without dead ends: 2382
[2019-11-24 01:19:26,756 INFO  L630         BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-11-24 01:19:26,760 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2382 states.
[2019-11-24 01:19:26,870 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2382 to 2382.
[2019-11-24 01:19:26,870 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 2382 states.
[2019-11-24 01:19:26,884 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2382 states to 2382 states and 3469 transitions.
[2019-11-24 01:19:26,885 INFO  L78                 Accepts]: Start accepts. Automaton has 2382 states and 3469 transitions. Word has length 20
[2019-11-24 01:19:26,885 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-11-24 01:19:26,885 INFO  L462      AbstractCegarLoop]: Abstraction has 2382 states and 3469 transitions.
[2019-11-24 01:19:26,886 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2019-11-24 01:19:26,886 INFO  L276                IsEmpty]: Start isEmpty. Operand 2382 states and 3469 transitions.
[2019-11-24 01:19:26,893 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 22
[2019-11-24 01:19:26,894 INFO  L402         BasicCegarLoop]: Found error trace
[2019-11-24 01:19:26,894 INFO  L410         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-11-24 01:19:26,895 INFO  L410      AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-11-24 01:19:26,901 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-11-24 01:19:26,901 INFO  L82        PathProgramCache]: Analyzing trace with hash 2052582283, now seen corresponding path program 1 times
[2019-11-24 01:19:26,901 INFO  L163   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-11-24 01:19:26,902 INFO  L348   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083062546]
[2019-11-24 01:19:26,903 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-11-24 01:19:27,222 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-24 01:19:27,419 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-24 01:19:27,419 INFO  L348   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083062546]
[2019-11-24 01:19:27,420 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-11-24 01:19:27,420 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2019-11-24 01:19:27,421 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850698705]
[2019-11-24 01:19:27,421 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 3 states
[2019-11-24 01:19:27,421 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2019-11-24 01:19:27,421 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2019-11-24 01:19:27,422 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-11-24 01:19:27,422 INFO  L87              Difference]: Start difference. First operand 2382 states and 3469 transitions. Second operand 3 states.
[2019-11-24 01:19:27,507 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-11-24 01:19:27,507 INFO  L93              Difference]: Finished difference Result 2382 states and 3469 transitions.
[2019-11-24 01:19:27,508 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2019-11-24 01:19:27,508 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 21
[2019-11-24 01:19:27,508 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-11-24 01:19:27,527 INFO  L225             Difference]: With dead ends: 2382
[2019-11-24 01:19:27,527 INFO  L226             Difference]: Without dead ends: 2380
[2019-11-24 01:19:27,530 INFO  L630         BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-11-24 01:19:27,535 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2380 states.
[2019-11-24 01:19:27,677 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2380 to 2380.
[2019-11-24 01:19:27,678 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 2380 states.
[2019-11-24 01:19:27,693 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2380 states to 2380 states and 3467 transitions.
[2019-11-24 01:19:27,694 INFO  L78                 Accepts]: Start accepts. Automaton has 2380 states and 3467 transitions. Word has length 21
[2019-11-24 01:19:27,694 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-11-24 01:19:27,695 INFO  L462      AbstractCegarLoop]: Abstraction has 2380 states and 3467 transitions.
[2019-11-24 01:19:27,695 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2019-11-24 01:19:27,695 INFO  L276                IsEmpty]: Start isEmpty. Operand 2380 states and 3467 transitions.
[2019-11-24 01:19:27,696 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 23
[2019-11-24 01:19:27,696 INFO  L402         BasicCegarLoop]: Found error trace
[2019-11-24 01:19:27,697 INFO  L410         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]
[2019-11-24 01:19:27,697 INFO  L410      AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-11-24 01:19:27,697 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-11-24 01:19:27,697 INFO  L82        PathProgramCache]: Analyzing trace with hash -794456313, now seen corresponding path program 1 times
[2019-11-24 01:19:27,697 INFO  L163   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-11-24 01:19:27,698 INFO  L348   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51070886]
[2019-11-24 01:19:27,698 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-11-24 01:19:27,817 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-24 01:19:28,047 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-24 01:19:28,047 INFO  L348   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51070886]
[2019-11-24 01:19:28,049 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-11-24 01:19:28,049 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2019-11-24 01:19:28,049 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607293548]
[2019-11-24 01:19:28,050 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 3 states
[2019-11-24 01:19:28,050 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2019-11-24 01:19:28,050 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2019-11-24 01:19:28,051 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-11-24 01:19:28,052 INFO  L87              Difference]: Start difference. First operand 2380 states and 3467 transitions. Second operand 3 states.
[2019-11-24 01:19:28,174 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-11-24 01:19:28,174 INFO  L93              Difference]: Finished difference Result 2380 states and 3467 transitions.
[2019-11-24 01:19:28,175 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2019-11-24 01:19:28,175 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 22
[2019-11-24 01:19:28,175 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-11-24 01:19:28,195 INFO  L225             Difference]: With dead ends: 2380
[2019-11-24 01:19:28,196 INFO  L226             Difference]: Without dead ends: 2378
[2019-11-24 01:19:28,198 INFO  L630         BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-11-24 01:19:28,204 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2378 states.
[2019-11-24 01:19:28,333 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2378 to 2378.
[2019-11-24 01:19:28,333 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 2378 states.
[2019-11-24 01:19:28,346 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2378 states to 2378 states and 3465 transitions.
[2019-11-24 01:19:28,347 INFO  L78                 Accepts]: Start accepts. Automaton has 2378 states and 3465 transitions. Word has length 22
[2019-11-24 01:19:28,348 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-11-24 01:19:28,348 INFO  L462      AbstractCegarLoop]: Abstraction has 2378 states and 3465 transitions.
[2019-11-24 01:19:28,348 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2019-11-24 01:19:28,348 INFO  L276                IsEmpty]: Start isEmpty. Operand 2378 states and 3465 transitions.
[2019-11-24 01:19:28,349 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2019-11-24 01:19:28,349 INFO  L402         BasicCegarLoop]: Found error trace
[2019-11-24 01:19:28,349 INFO  L410         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]
[2019-11-24 01:19:28,349 INFO  L410      AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-11-24 01:19:28,349 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-11-24 01:19:28,350 INFO  L82        PathProgramCache]: Analyzing trace with hash 1141660437, now seen corresponding path program 1 times
[2019-11-24 01:19:28,350 INFO  L163   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-11-24 01:19:28,350 INFO  L348   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727127316]
[2019-11-24 01:19:28,350 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-11-24 01:19:28,493 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-24 01:19:28,630 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-24 01:19:28,630 INFO  L348   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727127316]
[2019-11-24 01:19:28,631 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-11-24 01:19:28,631 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2019-11-24 01:19:28,631 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358191677]
[2019-11-24 01:19:28,631 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 3 states
[2019-11-24 01:19:28,632 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2019-11-24 01:19:28,632 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2019-11-24 01:19:28,632 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-11-24 01:19:28,633 INFO  L87              Difference]: Start difference. First operand 2378 states and 3465 transitions. Second operand 3 states.
[2019-11-24 01:19:28,724 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-11-24 01:19:28,724 INFO  L93              Difference]: Finished difference Result 2378 states and 3465 transitions.
[2019-11-24 01:19:28,724 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2019-11-24 01:19:28,725 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 23
[2019-11-24 01:19:28,725 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-11-24 01:19:28,741 INFO  L225             Difference]: With dead ends: 2378
[2019-11-24 01:19:28,741 INFO  L226             Difference]: Without dead ends: 2371
[2019-11-24 01:19:28,743 INFO  L630         BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-11-24 01:19:28,746 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2371 states.
[2019-11-24 01:19:28,858 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2371 to 2371.
[2019-11-24 01:19:28,858 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 2371 states.
[2019-11-24 01:19:28,869 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2371 states to 2371 states and 3456 transitions.
[2019-11-24 01:19:28,870 INFO  L78                 Accepts]: Start accepts. Automaton has 2371 states and 3456 transitions. Word has length 23
[2019-11-24 01:19:28,870 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-11-24 01:19:28,870 INFO  L462      AbstractCegarLoop]: Abstraction has 2371 states and 3456 transitions.
[2019-11-24 01:19:28,870 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2019-11-24 01:19:28,870 INFO  L276                IsEmpty]: Start isEmpty. Operand 2371 states and 3456 transitions.
[2019-11-24 01:19:28,873 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 37
[2019-11-24 01:19:28,873 INFO  L402         BasicCegarLoop]: Found error trace
[2019-11-24 01:19:28,873 INFO  L410         BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-11-24 01:19:28,874 INFO  L410      AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-11-24 01:19:28,874 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-11-24 01:19:28,874 INFO  L82        PathProgramCache]: Analyzing trace with hash 458070100, now seen corresponding path program 1 times
[2019-11-24 01:19:28,874 INFO  L163   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-11-24 01:19:28,874 INFO  L348   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754815838]
[2019-11-24 01:19:28,875 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-11-24 01:19:28,975 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-24 01:19:29,104 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-11-24 01:19:29,105 INFO  L348   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754815838]
[2019-11-24 01:19:29,106 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-11-24 01:19:29,106 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2019-11-24 01:19:29,106 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700420851]
[2019-11-24 01:19:29,107 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 3 states
[2019-11-24 01:19:29,107 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2019-11-24 01:19:29,107 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2019-11-24 01:19:29,107 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-11-24 01:19:29,108 INFO  L87              Difference]: Start difference. First operand 2371 states and 3456 transitions. Second operand 3 states.
[2019-11-24 01:19:31,095 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-11-24 01:19:31,095 INFO  L93              Difference]: Finished difference Result 3620 states and 5281 transitions.
[2019-11-24 01:19:31,096 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2019-11-24 01:19:31,096 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 36
[2019-11-24 01:19:31,098 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-11-24 01:19:31,227 INFO  L225             Difference]: With dead ends: 3620
[2019-11-24 01:19:31,227 INFO  L226             Difference]: Without dead ends: 1253
[2019-11-24 01:19:31,235 INFO  L630         BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-11-24 01:19:31,241 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1253 states.
[2019-11-24 01:19:31,306 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1253 to 1250.
[2019-11-24 01:19:31,307 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1250 states.
[2019-11-24 01:19:31,315 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1826 transitions.
[2019-11-24 01:19:31,316 INFO  L78                 Accepts]: Start accepts. Automaton has 1250 states and 1826 transitions. Word has length 36
[2019-11-24 01:19:31,316 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-11-24 01:19:31,316 INFO  L462      AbstractCegarLoop]: Abstraction has 1250 states and 1826 transitions.
[2019-11-24 01:19:31,316 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2019-11-24 01:19:31,317 INFO  L276                IsEmpty]: Start isEmpty. Operand 1250 states and 1826 transitions.
[2019-11-24 01:19:31,318 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 45
[2019-11-24 01:19:31,318 INFO  L402         BasicCegarLoop]: Found error trace
[2019-11-24 01:19:31,318 INFO  L410         BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-11-24 01:19:31,319 INFO  L410      AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-11-24 01:19:31,319 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-11-24 01:19:31,319 INFO  L82        PathProgramCache]: Analyzing trace with hash -1567482894, now seen corresponding path program 1 times
[2019-11-24 01:19:31,319 INFO  L163   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-11-24 01:19:31,320 INFO  L348   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125335304]
[2019-11-24 01:19:31,320 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-11-24 01:19:31,491 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-24 01:19:31,689 INFO  L134       CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2019-11-24 01:19:31,689 INFO  L348   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125335304]
[2019-11-24 01:19:31,690 INFO  L220   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-11-24 01:19:31,690 INFO  L233   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2019-11-24 01:19:31,690 INFO  L156   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045693411]
[2019-11-24 01:19:31,691 INFO  L442      AbstractCegarLoop]: Interpolant automaton has 3 states
[2019-11-24 01:19:31,691 INFO  L143   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2019-11-24 01:19:31,692 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2019-11-24 01:19:31,692 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-11-24 01:19:31,692 INFO  L87              Difference]: Start difference. First operand 1250 states and 1826 transitions. Second operand 3 states.
[2019-11-24 01:19:31,832 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-11-24 01:19:31,832 INFO  L93              Difference]: Finished difference Result 2489 states and 3639 transitions.
[2019-11-24 01:19:31,833 INFO  L142   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2019-11-24 01:19:31,833 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 44
[2019-11-24 01:19:31,833 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2019-11-24 01:19:31,846 INFO  L225             Difference]: With dead ends: 2489
[2019-11-24 01:19:31,846 INFO  L226             Difference]: Without dead ends: 1254
[2019-11-24 01:19:31,853 INFO  L630         BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-11-24 01:19:31,856 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1254 states.
[2019-11-24 01:19:31,934 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1254 to 1254.
[2019-11-24 01:19:31,934 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 1254 states.
[2019-11-24 01:19:31,944 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1254 states to 1254 states and 1830 transitions.
[2019-11-24 01:19:31,945 INFO  L78                 Accepts]: Start accepts. Automaton has 1254 states and 1830 transitions. Word has length 44
[2019-11-24 01:19:31,945 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2019-11-24 01:19:31,945 INFO  L462      AbstractCegarLoop]: Abstraction has 1254 states and 1830 transitions.
[2019-11-24 01:19:31,945 INFO  L463      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2019-11-24 01:19:31,946 INFO  L276                IsEmpty]: Start isEmpty. Operand 1254 states and 1830 transitions.
[2019-11-24 01:19:31,947 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 46
[2019-11-24 01:19:31,948 INFO  L402         BasicCegarLoop]: Found error trace
[2019-11-24 01:19:31,948 INFO  L410         BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-11-24 01:19:31,948 INFO  L410      AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-11-24 01:19:31,948 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2019-11-24 01:19:31,949 INFO  L82        PathProgramCache]: Analyzing trace with hash -1613736202, now seen corresponding path program 1 times
[2019-11-24 01:19:31,949 INFO  L163   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2019-11-24 01:19:31,949 INFO  L348   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979809508]
[2019-11-24 01:19:31,950 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-11-24 01:19:32,769 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-24 01:19:32,925 INFO  L134       CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2019-11-24 01:19:32,926 INFO  L348   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979809508]
[2019-11-24 01:19:32,926 INFO  L348   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1560426410]
[2019-11-24 01:19:32,926 INFO  L94    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2019-11-24 01:19:35,768 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-11-24 01:19:35,860 INFO  L255         TraceCheckSpWp]: Trace formula consists of 3841 conjuncts, 3 conjunts are in the unsatisfiable core
[2019-11-24 01:19:35,874 INFO  L278         TraceCheckSpWp]: Computing forward predicates...