/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i


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


This is Ultimate 0.2.1-dev-4f750a8
[2020-12-22 16:59:53,374 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2020-12-22 16:59:53,377 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2020-12-22 16:59:53,415 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-12-22 16:59:53,416 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-12-22 16:59:53,417 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-12-22 16:59:53,419 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-12-22 16:59:53,422 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
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[2020-12-22 16:59:53,429 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-12-22 16:59:53,431 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
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[2020-12-22 16:59:53,435 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-12-22 16:59:53,436 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-12-22 16:59:53,448 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-12-22 16:59:53,450 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2020-12-22 16:59:53,452 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-12-22 16:59:53,454 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-12-22 16:59:53,456 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2020-12-22 16:59:53,457 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-12-22 16:59:53,460 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
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[2020-12-22 16:59:53,461 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-12-22 16:59:53,463 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-12-22 16:59:53,463 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-12-22 16:59:53,464 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-12-22 16:59:53,465 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
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[2020-12-22 16:59:53,468 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2020-12-22 16:59:53,469 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-12-22 16:59:53,470 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
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[2020-12-22 16:59:53,471 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
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[2020-12-22 16:59:53,473 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2020-12-22 16:59:53,480 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf
[2020-12-22 16:59:53,543 INFO  L113        SettingsManager]: Loading preferences was successful
[2020-12-22 16:59:53,543 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2020-12-22 16:59:53,545 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2020-12-22 16:59:53,546 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2020-12-22 16:59:53,546 INFO  L138        SettingsManager]:  * Use SBE=true
[2020-12-22 16:59:53,546 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-12-22 16:59:53,546 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2020-12-22 16:59:53,547 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2020-12-22 16:59:53,547 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2020-12-22 16:59:53,547 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-12-22 16:59:53,547 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2020-12-22 16:59:53,547 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2020-12-22 16:59:53,547 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2020-12-22 16:59:53,548 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2020-12-22 16:59:53,548 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-12-22 16:59:53,549 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2020-12-22 16:59:53,549 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2020-12-22 16:59:53,549 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-12-22 16:59:53,550 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-12-22 16:59:53,550 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2020-12-22 16:59:53,550 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2020-12-22 16:59:53,550 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2020-12-22 16:59:53,550 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2020-12-22 16:59:53,551 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-12-22 16:59:53,551 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2020-12-22 16:59:53,551 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2020-12-22 16:59:53,954 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2020-12-22 16:59:53,996 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-12-22 16:59:53,999 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-12-22 16:59:54,000 INFO  L271        PluginConnector]: Initializing CDTParser...
[2020-12-22 16:59:54,001 INFO  L275        PluginConnector]: CDTParser initialized
[2020-12-22 16:59:54,002 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i
[2020-12-22 16:59:54,099 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26894e12d/3801ad493096485a8b1830f2eb532877/FLAGe45970858
[2020-12-22 16:59:55,819 INFO  L306              CDTParser]: Found 1 translation units.
[2020-12-22 16:59:55,820 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i
[2020-12-22 16:59:55,990 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26894e12d/3801ad493096485a8b1830f2eb532877/FLAGe45970858
[2020-12-22 16:59:56,191 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26894e12d/3801ad493096485a8b1830f2eb532877
[2020-12-22 16:59:56,194 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-12-22 16:59:56,196 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2020-12-22 16:59:56,198 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-12-22 16:59:56,199 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-12-22 16:59:56,204 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2020-12-22 16:59:56,205 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:59:56" (1/1) ...
[2020-12-22 16:59:56,207 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@533fb5ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:59:56, skipping insertion in model container
[2020-12-22 16:59:56,207 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:59:56" (1/1) ...
[2020-12-22 16:59:56,217 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2020-12-22 16:59:56,458 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2020-12-22 17:00:09,068 WARN  L226   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[837847,837860]
[2020-12-22 17:00:09,146 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-12-22 17:00:09,303 INFO  L203         MainTranslator]: Completed pre-run
[2020-12-22 17:00:10,180 WARN  L226   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i[837847,837860]
[2020-12-22 17:00:10,198 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2020-12-22 17:00:12,487 INFO  L208         MainTranslator]: Completed translation
[2020-12-22 17:00:12,488 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:00:12 WrapperNode
[2020-12-22 17:00:12,488 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-12-22 17:00:12,489 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2020-12-22 17:00:12,490 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2020-12-22 17:00:12,490 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2020-12-22 17:00:12,499 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:00:12" (1/1) ...
[2020-12-22 17:00:12,876 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:00:12" (1/1) ...
[2020-12-22 17:00:14,974 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2020-12-22 17:00:14,976 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-12-22 17:00:14,976 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2020-12-22 17:00:14,976 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2020-12-22 17:00:14,988 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:00:12" (1/1) ...
[2020-12-22 17:00:14,988 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:00:12" (1/1) ...
[2020-12-22 17:00:15,702 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:00:12" (1/1) ...
[2020-12-22 17:00:15,703 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:00:12" (1/1) ...
[2020-12-22 17:00:17,147 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:00:12" (1/1) ...
[2020-12-22 17:00:17,445 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:00:12" (1/1) ...
[2020-12-22 17:00:17,820 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:00:12" (1/1) ...
[2020-12-22 17:00:18,435 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-12-22 17:00:18,437 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-12-22 17:00:18,442 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2020-12-22 17:00:18,443 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2020-12-22 17:00:18,444 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:00:12" (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
[2020-12-22 17:00:18,575 INFO  L130     BoogieDeclarations]: Found specification of procedure stmmac_clean_desc3___0
[2020-12-22 17:00:18,575 INFO  L138     BoogieDeclarations]: Found implementation of procedure stmmac_clean_desc3___0
[2020-12-22 17:00:18,575 INFO  L130     BoogieDeclarations]: Found specification of procedure stmmac_pltfr_probe
[2020-12-22 17:00:18,576 INFO  L138     BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_probe
[2020-12-22 17:00:18,576 INFO  L130     BoogieDeclarations]: Found specification of procedure stmmac_poll_controller
[2020-12-22 17:00:18,576 INFO  L138     BoogieDeclarations]: Found implementation of procedure stmmac_poll_controller
[2020-12-22 17:00:18,576 INFO  L130     BoogieDeclarations]: Found specification of procedure stmmac_pltfr_suspend
[2020-12-22 17:00:18,576 INFO  L138     BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_suspend
[2020-12-22 17:00:18,576 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2020-12-22 17:00:18,577 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2020-12-22 17:00:18,577 INFO  L130     BoogieDeclarations]: Found specification of procedure dma_free_tx_skbufs
[2020-12-22 17:00:18,577 INFO  L138     BoogieDeclarations]: Found implementation of procedure dma_free_tx_skbufs
[2020-12-22 17:00:18,577 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2020-12-22 17:00:18,577 INFO  L130     BoogieDeclarations]: Found specification of procedure __bad_percpu_size
[2020-12-22 17:00:18,577 INFO  L130     BoogieDeclarations]: Found specification of procedure stmmac_suspend
[2020-12-22 17:00:18,578 INFO  L138     BoogieDeclarations]: Found implementation of procedure stmmac_suspend
[2020-12-22 17:00:18,578 INFO  L130     BoogieDeclarations]: Found specification of procedure stmmac_interrupt
[2020-12-22 17:00:18,578 INFO  L138     BoogieDeclarations]: Found implementation of procedure stmmac_interrupt
[2020-12-22 17:00:18,578 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-12-22 17:00:18,578 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-12-22 17:00:18,578 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$
[2020-12-22 17:00:18,579 INFO  L130     BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter
[2020-12-22 17:00:18,579 INFO  L130     BoogieDeclarations]: Found specification of procedure stmmac_get_ethtool_stats
[2020-12-22 17:00:18,579 INFO  L138     BoogieDeclarations]: Found implementation of procedure stmmac_get_ethtool_stats
[2020-12-22 17:00:18,579 INFO  L130     BoogieDeclarations]: Found specification of procedure stmmac_init_rx_buffers
[2020-12-22 17:00:18,579 INFO  L138     BoogieDeclarations]: Found implementation of procedure stmmac_init_rx_buffers
[2020-12-22 17:00:18,579 INFO  L130     BoogieDeclarations]: Found specification of procedure stmmac_hw_setup
[2020-12-22 17:00:18,580 INFO  L138     BoogieDeclarations]: Found implementation of procedure stmmac_hw_setup
[2020-12-22 17:00:18,580 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-12-22 17:00:18,580 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID
[2020-12-22 17:00:18,580 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID
[2020-12-22 17:00:18,580 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2020-12-22 17:00:18,580 INFO  L130     BoogieDeclarations]: Found specification of procedure stmmac_release
[2020-12-22 17:00:18,581 INFO  L138     BoogieDeclarations]: Found implementation of procedure stmmac_release
[2020-12-22 17:00:18,581 INFO  L130     BoogieDeclarations]: Found specification of procedure stmmac_tx_timeout
[2020-12-22 17:00:18,581 INFO  L138     BoogieDeclarations]: Found implementation of procedure stmmac_tx_timeout
[2020-12-22 17:00:18,581 INFO  L130     BoogieDeclarations]: Found specification of procedure stmmac_hw_init
[2020-12-22 17:00:18,581 INFO  L138     BoogieDeclarations]: Found implementation of procedure stmmac_hw_init
[2020-12-22 17:00:18,581 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2020-12-22 17:00:18,582 INFO  L130     BoogieDeclarations]: Found specification of procedure stmmac_disable_eee_mode
[2020-12-22 17:00:18,582 INFO  L138     BoogieDeclarations]: Found implementation of procedure stmmac_disable_eee_mode
[2020-12-22 17:00:18,582 INFO  L130     BoogieDeclarations]: Found specification of procedure stmmac_pci_remove
[2020-12-22 17:00:18,582 INFO  L138     BoogieDeclarations]: Found implementation of procedure stmmac_pci_remove
[2020-12-22 17:00:18,582 INFO  L130     BoogieDeclarations]: Found specification of procedure stmmac_pltfr_remove
[2020-12-22 17:00:18,582 INFO  L138     BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_remove
[2020-12-22 17:00:18,583 INFO  L130     BoogieDeclarations]: Found specification of procedure stmmac_dma_interrupt
[2020-12-22 17:00:18,583 INFO  L138     BoogieDeclarations]: Found implementation of procedure stmmac_dma_interrupt
[2020-12-22 17:00:18,583 INFO  L130     BoogieDeclarations]: Found specification of procedure stmmac_pltfr_resume
[2020-12-22 17:00:18,583 INFO  L138     BoogieDeclarations]: Found implementation of procedure stmmac_pltfr_resume
[2020-12-22 17:00:18,583 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-12-22 17:00:18,583 INFO  L130     BoogieDeclarations]: Found specification of procedure stmmac_open
[2020-12-22 17:00:18,584 INFO  L138     BoogieDeclarations]: Found implementation of procedure stmmac_open
[2020-12-22 17:00:18,584 INFO  L130     BoogieDeclarations]: Found specification of procedure read~unchecked~int
[2020-12-22 17:00:18,584 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int
[2020-12-22 17:00:18,584 INFO  L130     BoogieDeclarations]: Found specification of procedure init_dma_desc_rings
[2020-12-22 17:00:18,584 INFO  L138     BoogieDeclarations]: Found implementation of procedure init_dma_desc_rings
[2020-12-22 17:00:18,584 INFO  L130     BoogieDeclarations]: Found specification of procedure stmmac_get_hw_features
[2020-12-22 17:00:18,585 INFO  L138     BoogieDeclarations]: Found implementation of procedure stmmac_get_hw_features
[2020-12-22 17:00:18,585 INFO  L130     BoogieDeclarations]: Found specification of procedure stmmac_pci_probe
[2020-12-22 17:00:18,585 INFO  L138     BoogieDeclarations]: Found implementation of procedure stmmac_pci_probe
[2020-12-22 17:00:18,585 INFO  L130     BoogieDeclarations]: Found specification of procedure stmmac_dvr_probe
[2020-12-22 17:00:18,585 INFO  L138     BoogieDeclarations]: Found implementation of procedure stmmac_dvr_probe
[2020-12-22 17:00:18,585 INFO  L130     BoogieDeclarations]: Found specification of procedure stmmac_resume
[2020-12-22 17:00:18,586 INFO  L138     BoogieDeclarations]: Found implementation of procedure stmmac_resume
[2020-12-22 17:00:18,586 INFO  L130     BoogieDeclarations]: Found specification of procedure free_dma_desc_resources
[2020-12-22 17:00:18,586 INFO  L138     BoogieDeclarations]: Found implementation of procedure free_dma_desc_resources
[2020-12-22 17:00:18,586 INFO  L130     BoogieDeclarations]: Found specification of procedure stmmac_mdio_reset
[2020-12-22 17:00:18,586 INFO  L138     BoogieDeclarations]: Found implementation of procedure stmmac_mdio_reset
[2020-12-22 17:00:18,586 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID
[2020-12-22 17:00:18,586 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID
[2020-12-22 17:00:18,587 INFO  L130     BoogieDeclarations]: Found specification of procedure stmmac_ethtool_op_set_eee
[2020-12-22 17:00:18,587 INFO  L138     BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_op_set_eee
[2020-12-22 17:00:18,587 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int
[2020-12-22 17:00:18,587 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int
[2020-12-22 17:00:18,587 INFO  L130     BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$
[2020-12-22 17:00:18,587 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$
[2020-12-22 17:00:18,588 INFO  L130     BoogieDeclarations]: Found specification of procedure stmmac_disable_dma_irq
[2020-12-22 17:00:18,588 INFO  L138     BoogieDeclarations]: Found implementation of procedure stmmac_disable_dma_irq
[2020-12-22 17:00:18,588 INFO  L130     BoogieDeclarations]: Found specification of procedure stmmac_dvr_remove
[2020-12-22 17:00:18,588 INFO  L138     BoogieDeclarations]: Found implementation of procedure stmmac_dvr_remove
[2020-12-22 17:00:18,588 INFO  L130     BoogieDeclarations]: Found specification of procedure stmmac_tx_err
[2020-12-22 17:00:18,588 INFO  L138     BoogieDeclarations]: Found implementation of procedure stmmac_tx_err
[2020-12-22 17:00:18,589 INFO  L130     BoogieDeclarations]: Found specification of procedure stmmac_ethtool_getsettings
[2020-12-22 17:00:18,589 INFO  L138     BoogieDeclarations]: Found implementation of procedure stmmac_ethtool_getsettings
[2020-12-22 17:00:18,589 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int
[2020-12-22 17:00:18,589 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int
[2020-12-22 17:00:18,589 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2020-12-22 17:00:18,589 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID
[2020-12-22 17:00:18,589 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID
[2020-12-22 17:00:18,590 INFO  L130     BoogieDeclarations]: Found specification of procedure stmmac_pci_resume
[2020-12-22 17:00:18,590 INFO  L138     BoogieDeclarations]: Found implementation of procedure stmmac_pci_resume
[2020-12-22 17:02:28,452 INFO  L759   $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_6_switch_break: ldv_switch_6_#res := 0;
[2020-12-22 17:02:28,453 INFO  L759   $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0;
[2020-12-22 17:02:28,453 INFO  L759   $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0;
[2020-12-22 17:02:28,453 INFO  L759   $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0;
[2020-12-22 17:02:28,454 INFO  L759   $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0;
[2020-12-22 17:02:28,454 INFO  L759   $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_6_switch_break#4: ldv_switch_6_#res := 0;
[2020-12-22 17:02:28,454 INFO  L759   $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_6_switch_break#3: ldv_switch_6_#res := 0;
[2020-12-22 17:02:28,454 INFO  L759   $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_6_switch_break#2: ldv_switch_6_#res := 0;
[2020-12-22 17:02:28,455 INFO  L759   $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_5_switch_break#2: ldv_switch_5_#res := 0;
[2020-12-22 17:02:28,456 INFO  L759   $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break#2: ldv_switch_4_#res := 0;
[2020-12-22 17:02:28,456 INFO  L759   $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break#3: ldv_switch_4_#res := 0;
[2020-12-22 17:02:28,456 INFO  L759   $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_5_switch_break: ldv_switch_5_#res := 0;
[2020-12-22 17:02:28,456 INFO  L759   $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_8_switch_break#2: ldv_switch_8_#res := 0;
[2020-12-22 17:02:28,457 INFO  L759   $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0;
[2020-12-22 17:02:28,457 INFO  L759   $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#4: ldv_switch_0_#res := 0;
[2020-12-22 17:02:28,458 INFO  L759   $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0;
[2020-12-22 17:02:28,458 INFO  L759   $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break#2: ldv_switch_3_#res := 0;
[2020-12-22 17:02:28,460 INFO  L759   $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true;
[2020-12-22 17:02:28,460 INFO  L759   $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break: ldv_switch_4_#res := 0;
[2020-12-22 17:02:28,460 INFO  L759   $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_7_switch_break: ldv_switch_7_#res := 0;
[2020-12-22 17:02:28,461 INFO  L759   $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break: ldv_switch_3_#res := 0;
[2020-12-22 17:02:28,462 INFO  L759   $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_9_switch_break: ldv_switch_9_#res := 0;
[2020-12-22 17:02:28,463 INFO  L759   $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_8_switch_break: ldv_switch_8_#res := 0;
[2020-12-22 17:02:28,463 INFO  L759   $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0;
[2020-12-22 17:02:28,464 INFO  L759   $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0;
[2020-12-22 17:02:28,700 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-12-22 17:02:28,700 INFO  L299             CfgBuilder]: Removed 10555 assume(true) statements.
[2020-12-22 17:02:28,713 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:02:28 BoogieIcfgContainer
[2020-12-22 17:02:28,713 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-12-22 17:02:28,715 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-12-22 17:02:28,715 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2020-12-22 17:02:28,720 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2020-12-22 17:02:28,720 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 04:59:56" (1/3) ...
[2020-12-22 17:02:28,721 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@744dd27c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 05:02:28, skipping insertion in model container
[2020-12-22 17:02:28,721 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:00:12" (2/3) ...
[2020-12-22 17:02:28,721 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@744dd27c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 05:02:28, skipping insertion in model container
[2020-12-22 17:02:28,722 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:02:28" (3/3) ...
[2020-12-22 17:02:28,723 INFO  L111   eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-stmicro-stmmac-stmmac.cil.i
[2020-12-22 17:02:28,730 INFO  L153   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2020-12-22 17:02:28,741 INFO  L165   ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations.
[2020-12-22 17:02:28,762 INFO  L253      AbstractCegarLoop]: Starting to check reachability of 6 error locations.
[2020-12-22 17:02:28,825 INFO  L377      AbstractCegarLoop]: Interprodecural is true
[2020-12-22 17:02:28,825 INFO  L378      AbstractCegarLoop]: Hoare is true
[2020-12-22 17:02:28,825 INFO  L379      AbstractCegarLoop]: Compute interpolants for FPandBP
[2020-12-22 17:02:28,825 INFO  L380      AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-12-22 17:02:28,825 INFO  L381      AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-12-22 17:02:28,825 INFO  L382      AbstractCegarLoop]: Difference is false
[2020-12-22 17:02:28,826 INFO  L383      AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-12-22 17:02:28,826 INFO  L387      AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-12-22 17:02:29,067 INFO  L276                IsEmpty]: Start isEmpty. Operand 10918 states.
[2020-12-22 17:02:29,124 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 255
[2020-12-22 17:02:29,124 INFO  L414         BasicCegarLoop]: Found error trace
[2020-12-22 17:02:29,125 INFO  L422         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-12-22 17:02:29,126 INFO  L429      AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-12-22 17:02:29,133 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-12-22 17:02:29,134 INFO  L82        PathProgramCache]: Analyzing trace with hash 437795615, now seen corresponding path program 1 times
[2020-12-22 17:02:29,142 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-12-22 17:02:29,142 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519360836]
[2020-12-22 17:02:29,143 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-12-22 17:02:31,328 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-12-22 17:02:32,887 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-12-22 17:02:32,888 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519360836]
[2020-12-22 17:02:32,889 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-12-22 17:02:32,890 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-12-22 17:02:32,891 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084210081]
[2020-12-22 17:02:32,899 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-12-22 17:02:32,899 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-12-22 17:02:32,917 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-12-22 17:02:32,919 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-12-22 17:02:32,921 INFO  L87              Difference]: Start difference. First operand 10918 states. Second operand 3 states.
[2020-12-22 17:02:37,158 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-12-22 17:02:37,158 INFO  L93              Difference]: Finished difference Result 30974 states and 43463 transitions.
[2020-12-22 17:02:37,159 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-12-22 17:02:37,161 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 254
[2020-12-22 17:02:37,163 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-12-22 17:02:37,349 INFO  L225             Difference]: With dead ends: 30974
[2020-12-22 17:02:37,349 INFO  L226             Difference]: Without dead ends: 20264
[2020-12-22 17:02:37,441 INFO  L677         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
[2020-12-22 17:02:37,506 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 20264 states.
[2020-12-22 17:02:38,449 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 20264 to 20264.
[2020-12-22 17:02:38,450 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 20264 states.
[2020-12-22 17:02:38,587 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20264 states to 20264 states and 27792 transitions.
[2020-12-22 17:02:38,592 INFO  L78                 Accepts]: Start accepts. Automaton has 20264 states and 27792 transitions. Word has length 254
[2020-12-22 17:02:38,598 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-12-22 17:02:38,598 INFO  L481      AbstractCegarLoop]: Abstraction has 20264 states and 27792 transitions.
[2020-12-22 17:02:38,598 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-12-22 17:02:38,598 INFO  L276                IsEmpty]: Start isEmpty. Operand 20264 states and 27792 transitions.
[2020-12-22 17:02:38,627 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 291
[2020-12-22 17:02:38,628 INFO  L414         BasicCegarLoop]: Found error trace
[2020-12-22 17:02:38,628 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-12-22 17:02:38,629 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-12-22 17:02:38,629 INFO  L429      AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-12-22 17:02:38,630 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-12-22 17:02:38,630 INFO  L82        PathProgramCache]: Analyzing trace with hash 451016559, now seen corresponding path program 1 times
[2020-12-22 17:02:38,632 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-12-22 17:02:38,632 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956750290]
[2020-12-22 17:02:38,633 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-12-22 17:02:39,937 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-12-22 17:02:41,344 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-12-22 17:02:41,345 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956750290]
[2020-12-22 17:02:41,345 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-12-22 17:02:41,345 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-12-22 17:02:41,345 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368835843]
[2020-12-22 17:02:41,349 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-12-22 17:02:41,349 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-12-22 17:02:41,350 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-12-22 17:02:41,350 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-12-22 17:02:41,350 INFO  L87              Difference]: Start difference. First operand 20264 states and 27792 transitions. Second operand 3 states.
[2020-12-22 17:02:45,210 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-12-22 17:02:45,211 INFO  L93              Difference]: Finished difference Result 39882 states and 54873 transitions.
[2020-12-22 17:02:45,212 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-12-22 17:02:45,212 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 290
[2020-12-22 17:02:45,216 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-12-22 17:02:45,423 INFO  L225             Difference]: With dead ends: 39882
[2020-12-22 17:02:45,423 INFO  L226             Difference]: Without dead ends: 30017
[2020-12-22 17:02:45,494 INFO  L677         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
[2020-12-22 17:02:45,550 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 30017 states.
[2020-12-22 17:02:46,554 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 30017 to 30017.
[2020-12-22 17:02:46,555 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 30017 states.
[2020-12-22 17:02:46,688 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 30017 states to 30017 states and 41259 transitions.
[2020-12-22 17:02:46,690 INFO  L78                 Accepts]: Start accepts. Automaton has 30017 states and 41259 transitions. Word has length 290
[2020-12-22 17:02:46,691 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-12-22 17:02:46,691 INFO  L481      AbstractCegarLoop]: Abstraction has 30017 states and 41259 transitions.
[2020-12-22 17:02:46,691 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-12-22 17:02:46,691 INFO  L276                IsEmpty]: Start isEmpty. Operand 30017 states and 41259 transitions.
[2020-12-22 17:02:46,713 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 291
[2020-12-22 17:02:46,713 INFO  L414         BasicCegarLoop]: Found error trace
[2020-12-22 17:02:46,713 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-12-22 17:02:46,714 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2020-12-22 17:02:46,714 INFO  L429      AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-12-22 17:02:46,714 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-12-22 17:02:46,715 INFO  L82        PathProgramCache]: Analyzing trace with hash 1152081137, now seen corresponding path program 1 times
[2020-12-22 17:02:46,715 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-12-22 17:02:46,715 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701192541]
[2020-12-22 17:02:46,716 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-12-22 17:02:48,057 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-12-22 17:02:49,058 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2020-12-22 17:02:49,059 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701192541]
[2020-12-22 17:02:49,059 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-12-22 17:02:49,059 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-12-22 17:02:49,060 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564112082]
[2020-12-22 17:02:49,060 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 3 states
[2020-12-22 17:02:49,061 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-12-22 17:02:49,062 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2020-12-22 17:02:49,062 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2020-12-22 17:02:49,062 INFO  L87              Difference]: Start difference. First operand 30017 states and 41259 transitions. Second operand 3 states.
[2020-12-22 17:02:53,189 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-12-22 17:02:53,190 INFO  L93              Difference]: Finished difference Result 59389 states and 81809 transitions.
[2020-12-22 17:02:53,191 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2020-12-22 17:02:53,191 INFO  L78                 Accepts]: Start accepts. Automaton has 3 states. Word has length 290
[2020-12-22 17:02:53,192 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-12-22 17:02:53,399 INFO  L225             Difference]: With dead ends: 59389
[2020-12-22 17:02:53,399 INFO  L226             Difference]: Without dead ends: 39771
[2020-12-22 17:02:53,512 INFO  L677         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
[2020-12-22 17:02:53,576 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 39771 states.
[2020-12-22 17:02:54,722 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 39771 to 39771.
[2020-12-22 17:02:54,723 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 39771 states.
[2020-12-22 17:02:54,906 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 39771 states to 39771 states and 54727 transitions.
[2020-12-22 17:02:54,908 INFO  L78                 Accepts]: Start accepts. Automaton has 39771 states and 54727 transitions. Word has length 290
[2020-12-22 17:02:54,909 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-12-22 17:02:54,909 INFO  L481      AbstractCegarLoop]: Abstraction has 39771 states and 54727 transitions.
[2020-12-22 17:02:54,909 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 3 states.
[2020-12-22 17:02:54,909 INFO  L276                IsEmpty]: Start isEmpty. Operand 39771 states and 54727 transitions.
[2020-12-22 17:02:54,950 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 306
[2020-12-22 17:02:54,950 INFO  L414         BasicCegarLoop]: Found error trace
[2020-12-22 17:02:54,951 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-12-22 17:02:54,951 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2020-12-22 17:02:54,953 INFO  L429      AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-12-22 17:02:54,954 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-12-22 17:02:54,954 INFO  L82        PathProgramCache]: Analyzing trace with hash -644569363, now seen corresponding path program 1 times
[2020-12-22 17:02:54,954 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-12-22 17:02:54,955 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749151386]
[2020-12-22 17:02:54,958 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-12-22 17:02:56,273 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-12-22 17:02:58,260 INFO  L134       CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked.
[2020-12-22 17:02:58,261 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749151386]
[2020-12-22 17:02:58,261 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-12-22 17:02:58,261 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-12-22 17:02:58,262 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169428846]
[2020-12-22 17:02:58,262 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-12-22 17:02:58,263 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-12-22 17:02:58,263 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-12-22 17:02:58,263 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-12-22 17:02:58,264 INFO  L87              Difference]: Start difference. First operand 39771 states and 54727 transitions. Second operand 4 states.
[2020-12-22 17:02:59,379 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-12-22 17:02:59,380 INFO  L93              Difference]: Finished difference Result 39771 states and 54727 transitions.
[2020-12-22 17:02:59,381 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2020-12-22 17:02:59,381 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 305
[2020-12-22 17:02:59,382 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-12-22 17:02:59,569 INFO  L225             Difference]: With dead ends: 39771
[2020-12-22 17:02:59,569 INFO  L226             Difference]: Without dead ends: 39765
[2020-12-22 17:02:59,594 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-12-22 17:02:59,646 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 39765 states.
[2020-12-22 17:03:00,860 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 39765 to 39765.
[2020-12-22 17:03:00,860 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 39765 states.
[2020-12-22 17:03:01,014 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 39765 states to 39765 states and 54721 transitions.
[2020-12-22 17:03:01,015 INFO  L78                 Accepts]: Start accepts. Automaton has 39765 states and 54721 transitions. Word has length 305
[2020-12-22 17:03:01,016 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-12-22 17:03:01,016 INFO  L481      AbstractCegarLoop]: Abstraction has 39765 states and 54721 transitions.
[2020-12-22 17:03:01,016 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-12-22 17:03:01,017 INFO  L276                IsEmpty]: Start isEmpty. Operand 39765 states and 54721 transitions.
[2020-12-22 17:03:01,057 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 308
[2020-12-22 17:03:01,058 INFO  L414         BasicCegarLoop]: Found error trace
[2020-12-22 17:03:01,060 INFO  L422         BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-12-22 17:03:01,060 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2020-12-22 17:03:01,061 INFO  L429      AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-12-22 17:03:01,061 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-12-22 17:03:01,061 INFO  L82        PathProgramCache]: Analyzing trace with hash -955215056, now seen corresponding path program 1 times
[2020-12-22 17:03:01,062 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-12-22 17:03:01,062 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600331415]
[2020-12-22 17:03:01,062 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-12-22 17:03:02,155 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-12-22 17:03:03,915 INFO  L134       CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked.
[2020-12-22 17:03:03,915 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600331415]
[2020-12-22 17:03:03,916 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-12-22 17:03:03,916 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2020-12-22 17:03:03,916 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045216605]
[2020-12-22 17:03:03,917 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-12-22 17:03:03,917 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-12-22 17:03:03,918 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-12-22 17:03:03,919 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-12-22 17:03:03,919 INFO  L87              Difference]: Start difference. First operand 39765 states and 54721 transitions. Second operand 4 states.
[2020-12-22 17:03:06,042 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2020-12-22 17:03:06,042 INFO  L93              Difference]: Finished difference Result 78818 states and 109662 transitions.
[2020-12-22 17:03:06,043 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2020-12-22 17:03:06,044 INFO  L78                 Accepts]: Start accepts. Automaton has 4 states. Word has length 307
[2020-12-22 17:03:06,044 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2020-12-22 17:03:06,610 INFO  L225             Difference]: With dead ends: 78818
[2020-12-22 17:03:06,611 INFO  L226             Difference]: Without dead ends: 78777
[2020-12-22 17:03:06,661 INFO  L677         BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2020-12-22 17:03:06,762 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 78777 states.
[2020-12-22 17:03:09,806 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 78777 to 78633.
[2020-12-22 17:03:09,806 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand 78633 states.
[2020-12-22 17:03:10,574 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 78633 states to 78633 states and 109440 transitions.
[2020-12-22 17:03:10,577 INFO  L78                 Accepts]: Start accepts. Automaton has 78633 states and 109440 transitions. Word has length 307
[2020-12-22 17:03:10,577 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2020-12-22 17:03:10,577 INFO  L481      AbstractCegarLoop]: Abstraction has 78633 states and 109440 transitions.
[2020-12-22 17:03:10,578 INFO  L482      AbstractCegarLoop]: Interpolant automaton has 4 states.
[2020-12-22 17:03:10,578 INFO  L276                IsEmpty]: Start isEmpty. Operand 78633 states and 109440 transitions.
[2020-12-22 17:03:10,939 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 401
[2020-12-22 17:03:10,939 INFO  L414         BasicCegarLoop]: Found error trace
[2020-12-22 17:03:10,940 INFO  L422         BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2020-12-22 17:03:10,940 WARN  L518      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2020-12-22 17:03:10,941 INFO  L429      AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-12-22 17:03:10,941 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2020-12-22 17:03:10,941 INFO  L82        PathProgramCache]: Analyzing trace with hash -410665261, now seen corresponding path program 1 times
[2020-12-22 17:03:10,941 INFO  L162   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2020-12-22 17:03:10,942 INFO  L353   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656545001]
[2020-12-22 17:03:10,943 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-12-22 17:03:12,200 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-12-22 17:03:13,804 WARN  L197               SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 85
[2020-12-22 17:03:13,805 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298
[2020-12-22 17:03:13,865 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-12-22 17:03:13,915 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7
[2020-12-22 17:03:13,925 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-12-22 17:03:13,999 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20
[2020-12-22 17:03:14,015 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-12-22 17:03:14,048 INFO  L375   atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2020-12-22 17:03:14,053 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2020-12-22 17:03:14,397 INFO  L134       CoverageAnalysis]: Checked inductivity of 26 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2020-12-22 17:03:14,397 INFO  L353   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656545001]
[2020-12-22 17:03:14,397 INFO  L219   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2020-12-22 17:03:14,398 INFO  L232   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2020-12-22 17:03:14,398 INFO  L155   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41743403]
[2020-12-22 17:03:14,399 INFO  L461      AbstractCegarLoop]: Interpolant automaton has 4 states
[2020-12-22 17:03:14,399 INFO  L142   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2020-12-22 17:03:14,399 INFO  L142   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2020-12-22 17:03:14,400 INFO  L144   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2020-12-22 17:03:14,400 INFO  L87              Difference]: Start difference. First operand 78633 states and 109440 transitions. Second operand 4 states.