./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i --full-output --architecture 64bit


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


Checking for ERROR reachability
Using default analysis
Version fcb8e130
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6344be269056834d180d9b5e1136d4ee678a64c336fe877230b0ca721a1da138
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-fcb8e13
[2021-11-22 20:51:48,882 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2021-11-22 20:51:48,883 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2021-11-22 20:51:48,943 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-11-22 20:51:48,943 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-11-22 20:51:48,945 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-11-22 20:51:48,946 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-11-22 20:51:48,950 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2021-11-22 20:51:48,951 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-11-22 20:51:48,954 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-11-22 20:51:48,955 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2021-11-22 20:51:48,956 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-11-22 20:51:48,956 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-11-22 20:51:48,958 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-11-22 20:51:48,959 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-11-22 20:51:48,961 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-11-22 20:51:48,962 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-11-22 20:51:48,963 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-11-22 20:51:48,964 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-11-22 20:51:48,966 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2021-11-22 20:51:48,968 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-11-22 20:51:48,968 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-11-22 20:51:48,969 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2021-11-22 20:51:48,970 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-11-22 20:51:48,973 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-11-22 20:51:48,976 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-11-22 20:51:48,976 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-11-22 20:51:48,976 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-11-22 20:51:48,977 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-11-22 20:51:48,978 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-11-22 20:51:48,978 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-11-22 20:51:48,978 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-11-22 20:51:48,979 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-11-22 20:51:48,980 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2021-11-22 20:51:48,981 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-11-22 20:51:48,981 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2021-11-22 20:51:48,982 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-11-22 20:51:48,982 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-11-22 20:51:48,982 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2021-11-22 20:51:48,983 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2021-11-22 20:51:48,984 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2021-11-22 20:51:48,984 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf
[2021-11-22 20:51:49,007 INFO  L113        SettingsManager]: Loading preferences was successful
[2021-11-22 20:51:49,007 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2021-11-22 20:51:49,008 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-11-22 20:51:49,008 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-11-22 20:51:49,009 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-11-22 20:51:49,009 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2021-11-22 20:51:49,009 INFO  L138        SettingsManager]:  * Use SBE=true
[2021-11-22 20:51:49,009 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-11-22 20:51:49,010 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2021-11-22 20:51:49,010 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2021-11-22 20:51:49,010 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2021-11-22 20:51:49,011 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-11-22 20:51:49,011 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2021-11-22 20:51:49,011 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2021-11-22 20:51:49,011 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2021-11-22 20:51:49,011 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2021-11-22 20:51:49,011 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-11-22 20:51:49,011 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2021-11-22 20:51:49,012 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2021-11-22 20:51:49,012 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-22 20:51:49,012 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-11-22 20:51:49,012 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2021-11-22 20:51:49,012 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-11-22 20:51:49,012 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2021-11-22 20:51:49,013 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-11-22 20:51:49,013 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2021-11-22 20:51:49,013 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2021-11-22 20:51:49,013 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-11-22 20:51:49,013 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2021-11-22 20:51:49,013 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
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6344be269056834d180d9b5e1136d4ee678a64c336fe877230b0ca721a1da138
[2021-11-22 20:51:49,196 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2021-11-22 20:51:49,218 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-11-22 20:51:49,220 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-11-22 20:51:49,221 INFO  L271        PluginConnector]: Initializing CDTParser...
[2021-11-22 20:51:49,221 INFO  L275        PluginConnector]: CDTParser initialized
[2021-11-22 20:51:49,222 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i
[2021-11-22 20:51:49,260 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8fc3c01a/21cf490ce088405fa604767247fe4e53/FLAG897c14feb
[2021-11-22 20:51:49,980 INFO  L306              CDTParser]: Found 1 translation units.
[2021-11-22 20:51:49,981 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i
[2021-11-22 20:51:50,033 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8fc3c01a/21cf490ce088405fa604767247fe4e53/FLAG897c14feb
[2021-11-22 20:51:50,246 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8fc3c01a/21cf490ce088405fa604767247fe4e53
[2021-11-22 20:51:50,248 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-11-22 20:51:50,249 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2021-11-22 20:51:50,251 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-11-22 20:51:50,251 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-11-22 20:51:50,253 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2021-11-22 20:51:50,253 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 08:51:50" (1/1) ...
[2021-11-22 20:51:50,254 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fc49398 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:51:50, skipping insertion in model container
[2021-11-22 20:51:50,254 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 08:51:50" (1/1) ...
[2021-11-22 20:51:50,258 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2021-11-22 20:51:50,371 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2021-11-22 20:51:51,407 WARN  L230   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-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i[190502,190515]
[2021-11-22 20:51:51,713 WARN  L1533              CHandler]: Possible shadowing of function abort
[2021-11-22 20:51:51,716 WARN  L1533              CHandler]: Possible shadowing of function abort
[2021-11-22 20:51:51,716 WARN  L1533              CHandler]: Possible shadowing of function abort
[2021-11-22 20:51:51,720 WARN  L1533              CHandler]: Possible shadowing of function abort
[2021-11-22 20:51:52,449 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2021-11-22 20:51:52,491 INFO  L203         MainTranslator]: Completed pre-run
[2021-11-22 20:51:52,652 WARN  L230   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-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i[190502,190515]
[2021-11-22 20:51:52,726 WARN  L1533              CHandler]: Possible shadowing of function abort
[2021-11-22 20:51:52,727 WARN  L1533              CHandler]: Possible shadowing of function abort
[2021-11-22 20:51:52,727 WARN  L1533              CHandler]: Possible shadowing of function abort
[2021-11-22 20:51:52,729 WARN  L1533              CHandler]: Possible shadowing of function abort
[2021-11-22 20:51:52,904 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2021-11-22 20:51:53,113 INFO  L208         MainTranslator]: Completed translation
[2021-11-22 20:51:53,114 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:51:53 WrapperNode
[2021-11-22 20:51:53,114 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-11-22 20:51:53,115 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-11-22 20:51:53,115 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-11-22 20:51:53,115 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2021-11-22 20:51:53,119 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:51:53" (1/1) ...
[2021-11-22 20:51:53,272 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:51:53" (1/1) ...
[2021-11-22 20:51:53,479 INFO  L137                Inliner]: procedures = 352, calls = 6445, calls flagged for inlining = 991, calls inlined = 211, statements flattened = 6361
[2021-11-22 20:51:53,480 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-11-22 20:51:53,480 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-11-22 20:51:53,480 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2021-11-22 20:51:53,481 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2021-11-22 20:51:53,487 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:51:53" (1/1) ...
[2021-11-22 20:51:53,487 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:51:53" (1/1) ...
[2021-11-22 20:51:53,520 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:51:53" (1/1) ...
[2021-11-22 20:51:53,521 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:51:53" (1/1) ...
[2021-11-22 20:51:53,609 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:51:53" (1/1) ...
[2021-11-22 20:51:53,629 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:51:53" (1/1) ...
[2021-11-22 20:51:53,644 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:51:53" (1/1) ...
[2021-11-22 20:51:53,665 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-11-22 20:51:53,666 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-11-22 20:51:53,666 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2021-11-22 20:51:53,668 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2021-11-22 20:51:53,669 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:51:53" (1/1) ...
[2021-11-22 20:51:53,673 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-22 20:51:53,684 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-11-22 20:51:53,693 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-11-22 20:51:53,711 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-11-22 20:51:53,726 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int
[2021-11-22 20:51:53,726 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int
[2021-11-22 20:51:53,727 INFO  L130     BoogieDeclarations]: Found specification of procedure __xchg_wrong_size
[2021-11-22 20:51:53,727 INFO  L130     BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$
[2021-11-22 20:51:53,727 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$
[2021-11-22 20:51:53,727 INFO  L130     BoogieDeclarations]: Found specification of procedure gigaset_enterconfigmode
[2021-11-22 20:51:53,727 INFO  L138     BoogieDeclarations]: Found implementation of procedure gigaset_enterconfigmode
[2021-11-22 20:51:53,727 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-11-22 20:51:53,727 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2021-11-22 20:51:53,727 INFO  L130     BoogieDeclarations]: Found specification of procedure if_ioctl
[2021-11-22 20:51:53,728 INFO  L138     BoogieDeclarations]: Found implementation of procedure if_ioctl
[2021-11-22 20:51:53,728 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2021-11-22 20:51:53,728 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$
[2021-11-22 20:51:53,728 INFO  L130     BoogieDeclarations]: Found specification of procedure if_config
[2021-11-22 20:51:53,728 INFO  L138     BoogieDeclarations]: Found implementation of procedure if_config
[2021-11-22 20:51:53,728 INFO  L130     BoogieDeclarations]: Found specification of procedure if_chars_in_buffer
[2021-11-22 20:51:53,728 INFO  L138     BoogieDeclarations]: Found implementation of procedure if_chars_in_buffer
[2021-11-22 20:51:53,728 INFO  L130     BoogieDeclarations]: Found specification of procedure if_write_room
[2021-11-22 20:51:53,728 INFO  L138     BoogieDeclarations]: Found implementation of procedure if_write_room
[2021-11-22 20:51:53,729 INFO  L130     BoogieDeclarations]: Found specification of procedure if_lock
[2021-11-22 20:51:53,729 INFO  L138     BoogieDeclarations]: Found implementation of procedure if_lock
[2021-11-22 20:51:53,729 INFO  L130     BoogieDeclarations]: Found specification of procedure read~unchecked~int
[2021-11-22 20:51:53,729 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~int
[2021-11-22 20:51:53,729 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2021-11-22 20:51:53,729 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2021-11-22 20:51:53,729 INFO  L130     BoogieDeclarations]: Found specification of procedure single_release
[2021-11-22 20:51:53,729 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2021-11-22 20:51:53,729 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2021-11-22 20:51:53,730 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2021-11-22 20:51:53,730 INFO  L130     BoogieDeclarations]: Found specification of procedure __bad_percpu_size
[2021-11-22 20:51:53,730 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int
[2021-11-22 20:51:53,730 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int
[2021-11-22 20:51:53,730 INFO  L130     BoogieDeclarations]: Found specification of procedure if_tiocmset
[2021-11-22 20:51:53,730 INFO  L138     BoogieDeclarations]: Found implementation of procedure if_tiocmset
[2021-11-22 20:51:53,730 INFO  L130     BoogieDeclarations]: Found specification of procedure setflags
[2021-11-22 20:51:53,730 INFO  L138     BoogieDeclarations]: Found implementation of procedure setflags
[2021-11-22 20:51:53,730 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2021-11-22 20:51:53,731 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-11-22 20:51:53,731 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-11-22 20:51:54,128 INFO  L236             CfgBuilder]: Building ICFG
[2021-11-22 20:51:54,129 INFO  L262             CfgBuilder]: Building CFG for each procedure with an implementation
[2021-11-22 20:51:54,263 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4660-1: call __bad_percpu_size();
[2021-11-22 20:51:54,263 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4660-2: call __bad_percpu_size();
[2021-11-22 20:51:54,264 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4660: call __bad_percpu_size();
[2021-11-22 20:51:54,264 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8: assume !false;
[2021-11-22 20:51:54,264 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##7: assume false;assume { :begin_inline_get_current } true;havoc get_current_#res#1.base, get_current_#res#1.offset;havoc get_current_~pfo_ret__~0#1.base, get_current_~pfo_ret__~0#1.offset;havoc get_current_~pfo_ret__~0#1.base, get_current_~pfo_ret__~0#1.offset;
[2021-11-22 20:51:54,264 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4661-3: get_current_#res#1.base, get_current_#res#1.offset := get_current_~pfo_ret__~0#1.base, get_current_~pfo_ret__~0#1.offset;
[2021-11-22 20:51:54,264 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4661-1: get_current_#res#1.base, get_current_#res#1.offset := get_current_~pfo_ret__~0#1.base, get_current_~pfo_ret__~0#1.offset;
[2021-11-22 20:51:54,264 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4657: assume !true;
[2021-11-22 20:51:54,264 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4657: goto;
[2021-11-22 20:51:54,264 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##27: assume !false;
[2021-11-22 20:51:54,265 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4661-5: get_current_#res#1.base, get_current_#res#1.offset := get_current_~pfo_ret__~0#1.base, get_current_~pfo_ret__~0#1.offset;
[2021-11-22 20:51:54,265 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume false;
[2021-11-22 20:51:54,265 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume false;
[2021-11-22 20:51:54,265 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume !true;
[2021-11-22 20:51:54,265 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##22: assume !false;
[2021-11-22 20:51:54,266 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume !false;
[2021-11-22 20:51:54,266 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume false;
[2021-11-22 20:51:54,266 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume !true;
[2021-11-22 20:51:54,266 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4679: #t~ret76#1.base, #t~ret76#1.offset := get_current_#res#1.base, get_current_#res#1.offset;assume { :end_inline_get_current } true;~tmp~4#1.base, ~tmp~4#1.offset := #t~ret76#1.base, #t~ret76#1.offset;havoc #t~ret76#1.base, #t~ret76#1.offset;~__ptr~0#1.base, ~__ptr~0#1.offset := ~tmp~4#1.base, ~tmp~4#1.offset;
[2021-11-22 20:51:54,266 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4679-1: #t~ret77#1.base, #t~ret77#1.offset := get_current_#res#1.base, get_current_#res#1.offset;assume { :end_inline_get_current } true;~tmp___0~1#1.base, ~tmp___0~1#1.offset := #t~ret77#1.base, #t~ret77#1.offset;havoc #t~ret77#1.base, #t~ret77#1.offset;~__ptr___0~0#1.base, ~__ptr___0~0#1.offset := ~tmp___0~1#1.base, ~tmp___0~1#1.offset;
[2021-11-22 20:51:54,266 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false;
[2021-11-22 20:51:54,266 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4679-2: #t~ret78#1.base, #t~ret78#1.offset := get_current_#res#1.base, get_current_#res#1.offset;assume { :end_inline_get_current } true;~tmp___1~1#1.base, ~tmp___1~1#1.offset := #t~ret78#1.base, #t~ret78#1.offset;havoc #t~ret78#1.base, #t~ret78#1.offset;~__ptr___1~0#1.base, ~__ptr___1~0#1.offset := ~tmp___1~1#1.base, ~tmp___1~1#1.offset;
[2021-11-22 20:51:54,266 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false;
[2021-11-22 20:51:54,534 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##36: assume !false;
[2021-11-22 20:51:54,535 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##35: assume false;
[2021-11-22 20:51:54,541 WARN  L815   $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2021-11-22 20:51:54,547 WARN  L815   $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2021-11-22 20:51:54,547 WARN  L815   $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2021-11-22 20:51:54,548 WARN  L815   $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2021-11-22 20:52:43,755 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##175: assume !false;
[2021-11-22 20:52:43,755 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##174: assume false;
[2021-11-22 20:52:43,755 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##195: assume false;
[2021-11-22 20:52:43,755 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##196: assume !false;
[2021-11-22 20:52:43,755 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##32: assume !false;
[2021-11-22 20:52:43,756 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##31: assume false;
[2021-11-22 20:52:43,756 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##159: assume false;
[2021-11-22 20:52:43,756 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##160: assume !false;
[2021-11-22 20:52:43,756 WARN  L815   $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2021-11-22 20:52:43,758 WARN  L815   $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2021-11-22 20:52:43,759 WARN  L815   $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2021-11-22 20:52:43,759 WARN  L815   $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2021-11-22 20:52:43,763 WARN  L815   $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2021-11-22 20:52:44,227 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##279: assume !false;
[2021-11-22 20:52:44,228 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##278: assume false;
[2021-11-22 20:52:44,228 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##229: assume !false;call ULTIMATE.dealloc(if_version_~#version~0#1.base, if_version_~#version~0#1.offset);havoc if_version_~#version~0#1.base, if_version_~#version~0#1.offset;call ULTIMATE.dealloc(if_version_~#compat~0#1.base, if_version_~#compat~0#1.offset);havoc if_version_~#compat~0#1.base, if_version_~#compat~0#1.offset;call ULTIMATE.dealloc(if_version_~#__wait~4#1.base, if_version_~#__wait~4#1.offset);havoc if_version_~#__wait~4#1.base, if_version_~#__wait~4#1.offset;
[2021-11-22 20:52:44,228 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##228: assume false;
[2021-11-22 20:52:44,228 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##53: assume !false;
[2021-11-22 20:52:44,229 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##52: assume false;
[2021-11-22 20:52:44,229 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##43: assume false;
[2021-11-22 20:52:44,229 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##44: assume !false;
[2021-11-22 20:52:44,229 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##39: assume !false;
[2021-11-22 20:52:44,229 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume false;
[2021-11-22 20:52:44,229 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##30: assume !false;
[2021-11-22 20:52:44,230 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##29: assume false;
[2021-11-22 20:52:44,230 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume !false;
[2021-11-22 20:52:44,230 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##140: assume false;
[2021-11-22 20:52:44,230 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##141: assume !false;
[2021-11-22 20:52:44,230 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume false;
[2021-11-22 20:52:44,230 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##162: assume !false;
[2021-11-22 20:52:44,230 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##161: assume false;
[2021-11-22 20:52:44,230 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##126: assume !false;
[2021-11-22 20:52:44,230 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##125: assume false;
[2021-11-22 20:52:44,251 INFO  L277             CfgBuilder]: Performing block encoding
[2021-11-22 20:52:44,265 INFO  L296             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-11-22 20:52:44,266 INFO  L301             CfgBuilder]: Removed 11 assume(true) statements.
[2021-11-22 20:52:44,268 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 08:52:44 BoogieIcfgContainer
[2021-11-22 20:52:44,268 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-11-22 20:52:44,271 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-11-22 20:52:44,271 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2021-11-22 20:52:44,273 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2021-11-22 20:52:44,273 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 08:51:50" (1/3) ...
[2021-11-22 20:52:44,274 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2db2380 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 08:52:44, skipping insertion in model container
[2021-11-22 20:52:44,275 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:51:53" (2/3) ...
[2021-11-22 20:52:44,275 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2db2380 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 08:52:44, skipping insertion in model container
[2021-11-22 20:52:44,275 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 08:52:44" (3/3) ...
[2021-11-22 20:52:44,276 INFO  L111   eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i
[2021-11-22 20:52:44,279 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-11-22 20:52:44,279 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations.
[2021-11-22 20:52:44,311 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-11-22 20:52:44,316 INFO  L339      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR
[2021-11-22 20:52:44,316 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2021-11-22 20:52:44,336 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 759 states, 719 states have (on average 1.4089012517385258) internal successors, (1013), 724 states have internal predecessors, (1013), 24 states have call successors, (24), 10 states have call predecessors, (24), 10 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24)
[2021-11-22 20:52:44,339 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2021-11-22 20:52:44,339 INFO  L506         BasicCegarLoop]: Found error trace
[2021-11-22 20:52:44,339 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-22 20:52:44,340 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2021-11-22 20:52:44,343 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-11-22 20:52:44,343 INFO  L85        PathProgramCache]: Analyzing trace with hash 504713482, now seen corresponding path program 1 times
[2021-11-22 20:52:44,349 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-22 20:52:44,349 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694141276]
[2021-11-22 20:52:44,349 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-22 20:52:44,350 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-22 20:52:44,754 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-22 20:52:44,951 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-22 20:52:44,952 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-22 20:52:44,952 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694141276]
[2021-11-22 20:52:44,952 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694141276] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-22 20:52:44,952 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-22 20:52:44,952 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-11-22 20:52:44,953 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040628810]
[2021-11-22 20:52:44,954 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-22 20:52:44,956 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-11-22 20:52:44,956 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-22 20:52:44,971 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-11-22 20:52:44,972 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-11-22 20:52:44,974 INFO  L87              Difference]: Start difference. First operand  has 759 states, 719 states have (on average 1.4089012517385258) internal successors, (1013), 724 states have internal predecessors, (1013), 24 states have call successors, (24), 10 states have call predecessors, (24), 10 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand  has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-22 20:52:45,107 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-22 20:52:45,107 INFO  L93              Difference]: Finished difference Result 2231 states and 3186 transitions.
[2021-11-22 20:52:45,113 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-11-22 20:52:45,114 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13
[2021-11-22 20:52:45,114 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-22 20:52:45,136 INFO  L225             Difference]: With dead ends: 2231
[2021-11-22 20:52:45,136 INFO  L226             Difference]: Without dead ends: 1471
[2021-11-22 20:52:45,144 INFO  L932         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
[2021-11-22 20:52:45,147 INFO  L933         BasicCegarLoop]: 1050 mSDtfsCounter, 1010 mSDsluCounter, 1017 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1010 SdHoareTripleChecker+Valid, 2067 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2021-11-22 20:52:45,149 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [1010 Valid, 2067 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2021-11-22 20:52:45,163 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1471 states.
[2021-11-22 20:52:45,218 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1471 to 1463.
[2021-11-22 20:52:45,221 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1463 states, 1390 states have (on average 1.3899280575539568) internal successors, (1932), 1394 states have internal predecessors, (1932), 48 states have call successors, (48), 20 states have call predecessors, (48), 20 states have return successors, (66), 48 states have call predecessors, (66), 48 states have call successors, (66)
[2021-11-22 20:52:45,226 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1463 states to 1463 states and 2046 transitions.
[2021-11-22 20:52:45,227 INFO  L78                 Accepts]: Start accepts. Automaton has 1463 states and 2046 transitions. Word has length 13
[2021-11-22 20:52:45,227 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-11-22 20:52:45,227 INFO  L470      AbstractCegarLoop]: Abstraction has 1463 states and 2046 transitions.
[2021-11-22 20:52:45,227 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-22 20:52:45,227 INFO  L276                IsEmpty]: Start isEmpty. Operand 1463 states and 2046 transitions.
[2021-11-22 20:52:45,229 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2021-11-22 20:52:45,229 INFO  L506         BasicCegarLoop]: Found error trace
[2021-11-22 20:52:45,229 INFO  L514         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]
[2021-11-22 20:52:45,229 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-11-22 20:52:45,229 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2021-11-22 20:52:45,229 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-11-22 20:52:45,230 INFO  L85        PathProgramCache]: Analyzing trace with hash -353027544, now seen corresponding path program 1 times
[2021-11-22 20:52:45,230 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-22 20:52:45,230 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129720222]
[2021-11-22 20:52:45,230 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-22 20:52:45,230 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-22 20:52:45,354 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-22 20:52:45,472 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-22 20:52:45,473 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-22 20:52:45,473 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129720222]
[2021-11-22 20:52:45,473 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129720222] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-22 20:52:45,473 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-22 20:52:45,473 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-11-22 20:52:45,473 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820583373]
[2021-11-22 20:52:45,473 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-22 20:52:45,474 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-11-22 20:52:45,474 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-22 20:52:45,474 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-11-22 20:52:45,475 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-11-22 20:52:45,475 INFO  L87              Difference]: Start difference. First operand 1463 states and 2046 transitions. Second operand  has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-22 20:52:45,522 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-22 20:52:45,522 INFO  L93              Difference]: Finished difference Result 3370 states and 4739 transitions.
[2021-11-22 20:52:45,523 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-11-22 20:52:45,523 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23
[2021-11-22 20:52:45,523 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-22 20:52:45,529 INFO  L225             Difference]: With dead ends: 3370
[2021-11-22 20:52:45,530 INFO  L226             Difference]: Without dead ends: 1919
[2021-11-22 20:52:45,532 INFO  L932         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
[2021-11-22 20:52:45,533 INFO  L933         BasicCegarLoop]: 1033 mSDtfsCounter, 377 mSDsluCounter, 952 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 1985 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2021-11-22 20:52:45,534 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [383 Valid, 1985 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2021-11-22 20:52:45,535 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1919 states.
[2021-11-22 20:52:45,565 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1919 to 1916.
[2021-11-22 20:52:45,568 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1916 states, 1831 states have (on average 1.3965046422719825) internal successors, (2557), 1835 states have internal predecessors, (2557), 60 states have call successors, (60), 20 states have call predecessors, (60), 20 states have return successors, (82), 60 states have call predecessors, (82), 60 states have call successors, (82)
[2021-11-22 20:52:45,574 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1916 states to 1916 states and 2699 transitions.
[2021-11-22 20:52:45,574 INFO  L78                 Accepts]: Start accepts. Automaton has 1916 states and 2699 transitions. Word has length 23
[2021-11-22 20:52:45,574 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-11-22 20:52:45,574 INFO  L470      AbstractCegarLoop]: Abstraction has 1916 states and 2699 transitions.
[2021-11-22 20:52:45,574 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-22 20:52:45,574 INFO  L276                IsEmpty]: Start isEmpty. Operand 1916 states and 2699 transitions.
[2021-11-22 20:52:45,576 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2021-11-22 20:52:45,576 INFO  L506         BasicCegarLoop]: Found error trace
[2021-11-22 20:52:45,576 INFO  L514         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]
[2021-11-22 20:52:45,576 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-11-22 20:52:45,576 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2021-11-22 20:52:45,576 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-11-22 20:52:45,576 INFO  L85        PathProgramCache]: Analyzing trace with hash -1725950295, now seen corresponding path program 1 times
[2021-11-22 20:52:45,577 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-22 20:52:45,577 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923417659]
[2021-11-22 20:52:45,577 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-22 20:52:45,577 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-22 20:52:45,718 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-22 20:52:45,841 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-22 20:52:45,841 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-22 20:52:45,841 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923417659]
[2021-11-22 20:52:45,842 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923417659] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-22 20:52:45,842 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-22 20:52:45,842 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-11-22 20:52:45,842 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600763750]
[2021-11-22 20:52:45,842 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-22 20:52:45,842 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-11-22 20:52:45,843 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-22 20:52:45,843 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-11-22 20:52:45,843 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-11-22 20:52:45,843 INFO  L87              Difference]: Start difference. First operand 1916 states and 2699 transitions. Second operand  has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-22 20:52:46,047 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-22 20:52:46,047 INFO  L93              Difference]: Finished difference Result 5903 states and 8407 transitions.
[2021-11-22 20:52:46,048 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2021-11-22 20:52:46,048 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26
[2021-11-22 20:52:46,048 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-22 20:52:46,060 INFO  L225             Difference]: With dead ends: 5903
[2021-11-22 20:52:46,060 INFO  L226             Difference]: Without dead ends: 4000
[2021-11-22 20:52:46,064 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2021-11-22 20:52:46,065 INFO  L933         BasicCegarLoop]: 1413 mSDtfsCounter, 1885 mSDsluCounter, 4032 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1891 SdHoareTripleChecker+Valid, 5445 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2021-11-22 20:52:46,065 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [1891 Valid, 5445 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2021-11-22 20:52:46,068 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4000 states.
[2021-11-22 20:52:46,111 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4000 to 1887.
[2021-11-22 20:52:46,113 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1887 states, 1802 states have (on average 1.3962264150943395) internal successors, (2516), 1806 states have internal predecessors, (2516), 60 states have call successors, (60), 20 states have call predecessors, (60), 20 states have return successors, (82), 60 states have call predecessors, (82), 60 states have call successors, (82)
[2021-11-22 20:52:46,119 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1887 states to 1887 states and 2658 transitions.
[2021-11-22 20:52:46,119 INFO  L78                 Accepts]: Start accepts. Automaton has 1887 states and 2658 transitions. Word has length 26
[2021-11-22 20:52:46,119 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-11-22 20:52:46,120 INFO  L470      AbstractCegarLoop]: Abstraction has 1887 states and 2658 transitions.
[2021-11-22 20:52:46,120 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-22 20:52:46,120 INFO  L276                IsEmpty]: Start isEmpty. Operand 1887 states and 2658 transitions.
[2021-11-22 20:52:46,121 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 29
[2021-11-22 20:52:46,121 INFO  L506         BasicCegarLoop]: Found error trace
[2021-11-22 20:52:46,121 INFO  L514         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]
[2021-11-22 20:52:46,121 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2021-11-22 20:52:46,122 INFO  L402      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2021-11-22 20:52:46,122 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-11-22 20:52:46,122 INFO  L85        PathProgramCache]: Analyzing trace with hash 174012547, now seen corresponding path program 1 times
[2021-11-22 20:52:46,122 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-22 20:52:46,122 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370234478]
[2021-11-22 20:52:46,122 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-22 20:52:46,123 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-22 20:52:46,230 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-22 20:52:46,376 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-22 20:52:46,376 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-22 20:52:46,377 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370234478]
[2021-11-22 20:52:46,377 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370234478] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-22 20:52:46,377 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-22 20:52:46,377 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-11-22 20:52:46,377 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620094682]
[2021-11-22 20:52:46,377 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-22 20:52:46,378 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-11-22 20:52:46,378 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-22 20:52:46,378 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-11-22 20:52:46,378 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-11-22 20:52:46,378 INFO  L87              Difference]: Start difference. First operand 1887 states and 2658 transitions. Second operand  has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-22 20:52:47,059 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-22 20:52:47,060 INFO  L93              Difference]: Finished difference Result 2856 states and 4050 transitions.
[2021-11-22 20:52:47,060 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2021-11-22 20:52:47,060 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28
[2021-11-22 20:52:47,061 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-22 20:52:47,070 INFO  L225             Difference]: With dead ends: 2856
[2021-11-22 20:52:47,070 INFO  L226             Difference]: Without dead ends: 2848
[2021-11-22 20:52:47,071 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-11-22 20:52:47,072 INFO  L933         BasicCegarLoop]: 2017 mSDtfsCounter, 1971 mSDsluCounter, 1982 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1971 SdHoareTripleChecker+Valid, 3999 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2021-11-22 20:52:47,072 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [1971 Valid, 3999 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time]
[2021-11-22 20:52:47,074 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2848 states.
[2021-11-22 20:52:47,121 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2848 to 2839.
[2021-11-22 20:52:47,125 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2839 states, 2714 states have (on average 1.3960943257184968) internal successors, (3789), 2718 states have internal predecessors, (3789), 90 states have call successors, (90), 30 states have call predecessors, (90), 30 states have return successors, (156), 90 states have call predecessors, (156), 90 states have call successors, (156)
[2021-11-22 20:52:47,134 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2839 states to 2839 states and 4035 transitions.
[2021-11-22 20:52:47,134 INFO  L78                 Accepts]: Start accepts. Automaton has 2839 states and 4035 transitions. Word has length 28
[2021-11-22 20:52:47,135 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-11-22 20:52:47,135 INFO  L470      AbstractCegarLoop]: Abstraction has 2839 states and 4035 transitions.
[2021-11-22 20:52:47,135 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-22 20:52:47,135 INFO  L276                IsEmpty]: Start isEmpty. Operand 2839 states and 4035 transitions.
[2021-11-22 20:52:47,136 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 30
[2021-11-22 20:52:47,136 INFO  L506         BasicCegarLoop]: Found error trace
[2021-11-22 20:52:47,136 INFO  L514         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]
[2021-11-22 20:52:47,136 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2021-11-22 20:52:47,137 INFO  L402      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2021-11-22 20:52:47,137 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-11-22 20:52:47,137 INFO  L85        PathProgramCache]: Analyzing trace with hash 685075187, now seen corresponding path program 1 times
[2021-11-22 20:52:47,137 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-22 20:52:47,137 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5317315]
[2021-11-22 20:52:47,138 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-22 20:52:47,138 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-22 20:52:47,251 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-22 20:52:47,379 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-22 20:52:47,380 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-22 20:52:47,380 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5317315]
[2021-11-22 20:52:47,380 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5317315] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-22 20:52:47,380 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-22 20:52:47,380 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-11-22 20:52:47,380 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230196362]
[2021-11-22 20:52:47,380 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-22 20:52:47,380 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-11-22 20:52:47,380 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-22 20:52:47,380 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-11-22 20:52:47,381 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-11-22 20:52:47,381 INFO  L87              Difference]: Start difference. First operand 2839 states and 4035 transitions. Second operand  has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-22 20:52:47,527 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-22 20:52:47,527 INFO  L93              Difference]: Finished difference Result 6477 states and 9233 transitions.
[2021-11-22 20:52:47,528 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2021-11-22 20:52:47,528 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29
[2021-11-22 20:52:47,528 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-22 20:52:47,543 INFO  L225             Difference]: With dead ends: 6477
[2021-11-22 20:52:47,544 INFO  L226             Difference]: Without dead ends: 4555
[2021-11-22 20:52:47,549 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2021-11-22 20:52:47,550 INFO  L933         BasicCegarLoop]: 1400 mSDtfsCounter, 1720 mSDsluCounter, 3323 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1720 SdHoareTripleChecker+Valid, 4723 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2021-11-22 20:52:47,550 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [1720 Valid, 4723 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2021-11-22 20:52:47,553 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4555 states.
[2021-11-22 20:52:47,615 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4555 to 2839.
[2021-11-22 20:52:47,618 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2839 states, 2714 states have (on average 1.3938835666912306) internal successors, (3783), 2718 states have internal predecessors, (3783), 90 states have call successors, (90), 30 states have call predecessors, (90), 30 states have return successors, (156), 90 states have call predecessors, (156), 90 states have call successors, (156)
[2021-11-22 20:52:47,625 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2839 states to 2839 states and 4029 transitions.
[2021-11-22 20:52:47,625 INFO  L78                 Accepts]: Start accepts. Automaton has 2839 states and 4029 transitions. Word has length 29
[2021-11-22 20:52:47,625 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-11-22 20:52:47,625 INFO  L470      AbstractCegarLoop]: Abstraction has 2839 states and 4029 transitions.
[2021-11-22 20:52:47,625 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-22 20:52:47,625 INFO  L276                IsEmpty]: Start isEmpty. Operand 2839 states and 4029 transitions.
[2021-11-22 20:52:47,626 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 35
[2021-11-22 20:52:47,627 INFO  L506         BasicCegarLoop]: Found error trace
[2021-11-22 20:52:47,627 INFO  L514         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]
[2021-11-22 20:52:47,627 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2021-11-22 20:52:47,627 INFO  L402      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2021-11-22 20:52:47,627 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-11-22 20:52:47,627 INFO  L85        PathProgramCache]: Analyzing trace with hash 1553203365, now seen corresponding path program 1 times
[2021-11-22 20:52:47,627 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-22 20:52:47,627 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602946728]
[2021-11-22 20:52:47,627 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-22 20:52:47,628 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-22 20:52:47,735 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-22 20:52:47,869 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-22 20:52:47,869 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-22 20:52:47,870 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602946728]
[2021-11-22 20:52:47,870 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602946728] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-22 20:52:47,870 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-22 20:52:47,870 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-11-22 20:52:47,870 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9609026]
[2021-11-22 20:52:47,870 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-22 20:52:47,870 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-11-22 20:52:47,870 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-22 20:52:47,870 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-11-22 20:52:47,871 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-11-22 20:52:47,871 INFO  L87              Difference]: Start difference. First operand 2839 states and 4029 transitions. Second operand  has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-22 20:52:48,058 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-22 20:52:48,058 INFO  L93              Difference]: Finished difference Result 6876 states and 9823 transitions.
[2021-11-22 20:52:48,059 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2021-11-22 20:52:48,060 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34
[2021-11-22 20:52:48,060 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-22 20:52:48,073 INFO  L225             Difference]: With dead ends: 6876
[2021-11-22 20:52:48,074 INFO  L226             Difference]: Without dead ends: 4050
[2021-11-22 20:52:48,081 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-11-22 20:52:48,082 INFO  L933         BasicCegarLoop]: 1302 mSDtfsCounter, 596 mSDsluCounter, 2048 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 596 SdHoareTripleChecker+Valid, 3350 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2021-11-22 20:52:48,082 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [596 Valid, 3350 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2021-11-22 20:52:48,085 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4050 states.
[2021-11-22 20:52:48,149 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4050 to 2857.
[2021-11-22 20:52:48,153 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2857 states, 2732 states have (on average 1.3912884333821376) internal successors, (3801), 2736 states have internal predecessors, (3801), 90 states have call successors, (90), 30 states have call predecessors, (90), 30 states have return successors, (156), 90 states have call predecessors, (156), 90 states have call successors, (156)
[2021-11-22 20:52:48,159 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2857 states to 2857 states and 4047 transitions.
[2021-11-22 20:52:48,160 INFO  L78                 Accepts]: Start accepts. Automaton has 2857 states and 4047 transitions. Word has length 34
[2021-11-22 20:52:48,160 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-11-22 20:52:48,160 INFO  L470      AbstractCegarLoop]: Abstraction has 2857 states and 4047 transitions.
[2021-11-22 20:52:48,160 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-22 20:52:48,160 INFO  L276                IsEmpty]: Start isEmpty. Operand 2857 states and 4047 transitions.
[2021-11-22 20:52:48,161 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 37
[2021-11-22 20:52:48,161 INFO  L506         BasicCegarLoop]: Found error trace
[2021-11-22 20:52:48,161 INFO  L514         BasicCegarLoop]: trace histogram [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]
[2021-11-22 20:52:48,161 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2021-11-22 20:52:48,162 INFO  L402      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2021-11-22 20:52:48,162 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-11-22 20:52:48,162 INFO  L85        PathProgramCache]: Analyzing trace with hash 269159463, now seen corresponding path program 1 times
[2021-11-22 20:52:48,162 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-22 20:52:48,162 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422713808]
[2021-11-22 20:52:48,162 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-22 20:52:48,162 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-22 20:52:48,264 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-22 20:52:48,367 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-22 20:52:48,367 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-22 20:52:48,367 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422713808]
[2021-11-22 20:52:48,367 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422713808] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-22 20:52:48,367 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-22 20:52:48,367 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-11-22 20:52:48,367 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823670318]
[2021-11-22 20:52:48,367 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-22 20:52:48,367 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-11-22 20:52:48,367 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-22 20:52:48,368 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-11-22 20:52:48,368 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-11-22 20:52:48,368 INFO  L87              Difference]: Start difference. First operand 2857 states and 4047 transitions. Second operand  has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-22 20:52:48,471 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-22 20:52:48,471 INFO  L93              Difference]: Finished difference Result 6438 states and 9155 transitions.
[2021-11-22 20:52:48,472 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2021-11-22 20:52:48,472 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36
[2021-11-22 20:52:48,472 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-22 20:52:48,485 INFO  L225             Difference]: With dead ends: 6438
[2021-11-22 20:52:48,486 INFO  L226             Difference]: Without dead ends: 3586
[2021-11-22 20:52:48,494 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-11-22 20:52:48,494 INFO  L933         BasicCegarLoop]: 1327 mSDtfsCounter, 298 mSDsluCounter, 2348 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 3675 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2021-11-22 20:52:48,494 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [304 Valid, 3675 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2021-11-22 20:52:48,498 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3586 states.
[2021-11-22 20:52:48,561 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3586 to 2612.
[2021-11-22 20:52:48,564 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2612 states, 2493 states have (on average 1.3878860810268752) internal successors, (3460), 2497 states have internal predecessors, (3460), 84 states have call successors, (84), 30 states have call predecessors, (84), 30 states have return successors, (142), 84 states have call predecessors, (142), 84 states have call successors, (142)
[2021-11-22 20:52:48,572 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2612 states to 2612 states and 3686 transitions.
[2021-11-22 20:52:48,572 INFO  L78                 Accepts]: Start accepts. Automaton has 2612 states and 3686 transitions. Word has length 36
[2021-11-22 20:52:48,572 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-11-22 20:52:48,572 INFO  L470      AbstractCegarLoop]: Abstraction has 2612 states and 3686 transitions.
[2021-11-22 20:52:48,572 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-22 20:52:48,572 INFO  L276                IsEmpty]: Start isEmpty. Operand 2612 states and 3686 transitions.
[2021-11-22 20:52:48,573 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 43
[2021-11-22 20:52:48,574 INFO  L506         BasicCegarLoop]: Found error trace
[2021-11-22 20:52:48,574 INFO  L514         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]
[2021-11-22 20:52:48,574 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2021-11-22 20:52:48,574 INFO  L402      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2021-11-22 20:52:48,574 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-11-22 20:52:48,574 INFO  L85        PathProgramCache]: Analyzing trace with hash -1500371339, now seen corresponding path program 1 times
[2021-11-22 20:52:48,574 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-22 20:52:48,574 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212896425]
[2021-11-22 20:52:48,574 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-22 20:52:48,575 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-22 20:52:48,701 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-22 20:52:48,855 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-22 20:52:48,856 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-22 20:52:48,856 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212896425]
[2021-11-22 20:52:48,856 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212896425] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-22 20:52:48,856 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-22 20:52:48,856 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2021-11-22 20:52:48,856 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121009807]
[2021-11-22 20:52:48,856 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-22 20:52:48,856 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-11-22 20:52:48,856 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-22 20:52:48,857 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-11-22 20:52:48,857 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2021-11-22 20:52:48,857 INFO  L87              Difference]: Start difference. First operand 2612 states and 3686 transitions. Second operand  has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-22 20:52:49,119 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-22 20:52:49,119 INFO  L93              Difference]: Finished difference Result 7347 states and 10468 transitions.
[2021-11-22 20:52:49,120 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2021-11-22 20:52:49,120 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42
[2021-11-22 20:52:49,120 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-22 20:52:49,138 INFO  L225             Difference]: With dead ends: 7347
[2021-11-22 20:52:49,138 INFO  L226             Difference]: Without dead ends: 4742
[2021-11-22 20:52:49,147 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90
[2021-11-22 20:52:49,148 INFO  L933         BasicCegarLoop]: 1654 mSDtfsCounter, 1256 mSDsluCounter, 4754 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1256 SdHoareTripleChecker+Valid, 6408 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2021-11-22 20:52:49,148 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [1256 Valid, 6408 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2021-11-22 20:52:49,152 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4742 states.
[2021-11-22 20:52:49,285 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4742 to 2732.
[2021-11-22 20:52:49,288 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2732 states, 2613 states have (on average 1.3819364714887103) internal successors, (3611), 2617 states have internal predecessors, (3611), 84 states have call successors, (84), 30 states have call predecessors, (84), 30 states have return successors, (142), 84 states have call predecessors, (142), 84 states have call successors, (142)
[2021-11-22 20:52:49,296 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2732 states to 2732 states and 3837 transitions.
[2021-11-22 20:52:49,296 INFO  L78                 Accepts]: Start accepts. Automaton has 2732 states and 3837 transitions. Word has length 42
[2021-11-22 20:52:49,296 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-11-22 20:52:49,296 INFO  L470      AbstractCegarLoop]: Abstraction has 2732 states and 3837 transitions.
[2021-11-22 20:52:49,296 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-22 20:52:49,297 INFO  L276                IsEmpty]: Start isEmpty. Operand 2732 states and 3837 transitions.
[2021-11-22 20:52:49,298 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 53
[2021-11-22 20:52:49,298 INFO  L506         BasicCegarLoop]: Found error trace
[2021-11-22 20:52:49,298 INFO  L514         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]
[2021-11-22 20:52:49,298 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2021-11-22 20:52:49,298 INFO  L402      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2021-11-22 20:52:49,298 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-11-22 20:52:49,298 INFO  L85        PathProgramCache]: Analyzing trace with hash 1665900264, now seen corresponding path program 1 times
[2021-11-22 20:52:49,299 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-22 20:52:49,299 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906194571]
[2021-11-22 20:52:49,299 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-22 20:52:49,299 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-22 20:52:51,081 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-22 20:52:51,257 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-22 20:52:51,257 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-22 20:52:51,257 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906194571]
[2021-11-22 20:52:51,257 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906194571] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-22 20:52:51,258 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-22 20:52:51,258 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-11-22 20:52:51,258 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739037199]
[2021-11-22 20:52:51,258 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-22 20:52:51,258 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-11-22 20:52:51,258 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-22 20:52:51,259 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-11-22 20:52:51,259 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-11-22 20:52:51,259 INFO  L87              Difference]: Start difference. First operand 2732 states and 3837 transitions. Second operand  has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-22 20:52:53,104 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []
[2021-11-22 20:52:54,464 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-22 20:52:54,465 INFO  L93              Difference]: Finished difference Result 7075 states and 10099 transitions.
[2021-11-22 20:52:54,465 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2021-11-22 20:52:54,465 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52
[2021-11-22 20:52:54,466 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-22 20:52:54,479 INFO  L225             Difference]: With dead ends: 7075
[2021-11-22 20:52:54,480 INFO  L226             Difference]: Without dead ends: 5051
[2021-11-22 20:52:54,487 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2021-11-22 20:52:54,488 INFO  L933         BasicCegarLoop]: 1445 mSDtfsCounter, 1540 mSDsluCounter, 3933 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1548 SdHoareTripleChecker+Valid, 5378 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time
[2021-11-22 20:52:54,488 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [1548 Valid, 5378 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time]
[2021-11-22 20:52:54,492 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5051 states.
[2021-11-22 20:52:54,597 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5051 to 2726.
[2021-11-22 20:52:54,601 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2726 states, 2607 states have (on average 1.3805140007671652) internal successors, (3599), 2611 states have internal predecessors, (3599), 84 states have call successors, (84), 30 states have call predecessors, (84), 30 states have return successors, (142), 84 states have call predecessors, (142), 84 states have call successors, (142)
[2021-11-22 20:52:54,608 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2726 states to 2726 states and 3825 transitions.
[2021-11-22 20:52:54,609 INFO  L78                 Accepts]: Start accepts. Automaton has 2726 states and 3825 transitions. Word has length 52
[2021-11-22 20:52:54,609 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-11-22 20:52:54,609 INFO  L470      AbstractCegarLoop]: Abstraction has 2726 states and 3825 transitions.
[2021-11-22 20:52:54,609 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-22 20:52:54,610 INFO  L276                IsEmpty]: Start isEmpty. Operand 2726 states and 3825 transitions.
[2021-11-22 20:52:54,611 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 53
[2021-11-22 20:52:54,611 INFO  L506         BasicCegarLoop]: Found error trace
[2021-11-22 20:52:54,611 INFO  L514         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]
[2021-11-22 20:52:54,612 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2021-11-22 20:52:54,612 INFO  L402      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2021-11-22 20:52:54,612 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-11-22 20:52:54,612 INFO  L85        PathProgramCache]: Analyzing trace with hash -2108448700, now seen corresponding path program 1 times
[2021-11-22 20:52:54,613 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-22 20:52:54,613 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086879345]
[2021-11-22 20:52:54,613 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-22 20:52:54,613 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-22 20:52:54,732 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-22 20:52:54,848 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-22 20:52:54,848 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-22 20:52:54,848 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086879345]
[2021-11-22 20:52:54,848 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086879345] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-22 20:52:54,848 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-22 20:52:54,848 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-11-22 20:52:54,849 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037953398]
[2021-11-22 20:52:54,849 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-22 20:52:54,849 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-11-22 20:52:54,849 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-22 20:52:54,850 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-11-22 20:52:54,850 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-11-22 20:52:54,850 INFO  L87              Difference]: Start difference. First operand 2726 states and 3825 transitions. Second operand  has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-22 20:52:55,066 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-22 20:52:55,067 INFO  L93              Difference]: Finished difference Result 4508 states and 6372 transitions.
[2021-11-22 20:52:55,067 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2021-11-22 20:52:55,068 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52
[2021-11-22 20:52:55,068 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-22 20:52:55,081 INFO  L225             Difference]: With dead ends: 4508
[2021-11-22 20:52:55,082 INFO  L226             Difference]: Without dead ends: 4504
[2021-11-22 20:52:55,084 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-11-22 20:52:55,085 INFO  L933         BasicCegarLoop]: 1423 mSDtfsCounter, 1240 mSDsluCounter, 2646 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1252 SdHoareTripleChecker+Valid, 4069 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2021-11-22 20:52:55,085 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [1252 Valid, 4069 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2021-11-22 20:52:55,089 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 4504 states.
[2021-11-22 20:52:55,188 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 4504 to 2729.
[2021-11-22 20:52:55,192 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2729 states, 2610 states have (on average 1.3796934865900383) internal successors, (3601), 2614 states have internal predecessors, (3601), 84 states have call successors, (84), 30 states have call predecessors, (84), 30 states have return successors, (142), 84 states have call predecessors, (142), 84 states have call successors, (142)
[2021-11-22 20:52:55,198 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2729 states to 2729 states and 3827 transitions.
[2021-11-22 20:52:55,198 INFO  L78                 Accepts]: Start accepts. Automaton has 2729 states and 3827 transitions. Word has length 52
[2021-11-22 20:52:55,198 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-11-22 20:52:55,199 INFO  L470      AbstractCegarLoop]: Abstraction has 2729 states and 3827 transitions.
[2021-11-22 20:52:55,199 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-22 20:52:55,200 INFO  L276                IsEmpty]: Start isEmpty. Operand 2729 states and 3827 transitions.
[2021-11-22 20:52:55,201 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 55
[2021-11-22 20:52:55,201 INFO  L506         BasicCegarLoop]: Found error trace
[2021-11-22 20:52:55,201 INFO  L514         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]
[2021-11-22 20:52:55,201 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2021-11-22 20:52:55,202 INFO  L402      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2021-11-22 20:52:55,202 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-11-22 20:52:55,202 INFO  L85        PathProgramCache]: Analyzing trace with hash -1823298628, now seen corresponding path program 1 times
[2021-11-22 20:52:55,202 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-22 20:52:55,202 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788635760]
[2021-11-22 20:52:55,202 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-22 20:52:55,203 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-22 20:52:55,332 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-22 20:52:55,466 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-22 20:52:55,467 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-22 20:52:55,467 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788635760]
[2021-11-22 20:52:55,467 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788635760] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-22 20:52:55,467 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-22 20:52:55,467 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-11-22 20:52:55,467 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667412314]
[2021-11-22 20:52:55,468 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-22 20:52:55,468 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-11-22 20:52:55,468 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-22 20:52:55,469 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-11-22 20:52:55,469 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-11-22 20:52:55,469 INFO  L87              Difference]: Start difference. First operand 2729 states and 3827 transitions. Second operand  has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-22 20:52:56,661 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-22 20:52:56,661 INFO  L93              Difference]: Finished difference Result 6723 states and 9677 transitions.
[2021-11-22 20:52:56,662 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2021-11-22 20:52:56,662 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54
[2021-11-22 20:52:56,662 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-22 20:52:56,677 INFO  L225             Difference]: With dead ends: 6723
[2021-11-22 20:52:56,677 INFO  L226             Difference]: Without dead ends: 5678
[2021-11-22 20:52:56,682 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-11-22 20:52:56,683 INFO  L933         BasicCegarLoop]: 2036 mSDtfsCounter, 2018 mSDsluCounter, 3007 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2018 SdHoareTripleChecker+Valid, 5043 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2021-11-22 20:52:56,683 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [2018 Valid, 5043 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2021-11-22 20:52:56,687 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5678 states.
[2021-11-22 20:52:56,897 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5678 to 5570.
[2021-11-22 20:52:56,902 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5570 states, 5331 states have (on average 1.3832301631963984) internal successors, (7374), 5335 states have internal predecessors, (7374), 174 states have call successors, (174), 60 states have call predecessors, (174), 60 states have return successors, (462), 174 states have call predecessors, (462), 174 states have call successors, (462)
[2021-11-22 20:52:56,913 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5570 states to 5570 states and 8010 transitions.
[2021-11-22 20:52:56,913 INFO  L78                 Accepts]: Start accepts. Automaton has 5570 states and 8010 transitions. Word has length 54
[2021-11-22 20:52:56,914 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-11-22 20:52:56,914 INFO  L470      AbstractCegarLoop]: Abstraction has 5570 states and 8010 transitions.
[2021-11-22 20:52:56,914 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-22 20:52:56,914 INFO  L276                IsEmpty]: Start isEmpty. Operand 5570 states and 8010 transitions.
[2021-11-22 20:52:56,916 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 56
[2021-11-22 20:52:56,916 INFO  L506         BasicCegarLoop]: Found error trace
[2021-11-22 20:52:56,916 INFO  L514         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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-22 20:52:56,916 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2021-11-22 20:52:56,917 INFO  L402      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2021-11-22 20:52:56,917 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-11-22 20:52:56,917 INFO  L85        PathProgramCache]: Analyzing trace with hash -1770007413, now seen corresponding path program 1 times
[2021-11-22 20:52:56,917 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-22 20:52:56,917 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293852137]
[2021-11-22 20:52:56,917 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-22 20:52:56,917 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-22 20:52:57,024 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-22 20:52:57,130 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-22 20:52:57,130 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-22 20:52:57,130 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293852137]
[2021-11-22 20:52:57,130 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293852137] provided 0 perfect and 1 imperfect interpolant sequences
[2021-11-22 20:52:57,131 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [449090012]
[2021-11-22 20:52:57,131 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-22 20:52:57,131 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-22 20:52:57,131 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-11-22 20:52:57,152 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-11-22 20:52:57,185 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2021-11-22 20:52:58,300 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-22 20:52:58,329 INFO  L263         TraceCheckSpWp]: Trace formula consists of 8220 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-11-22 20:52:58,338 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-11-22 20:52:58,499 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-22 20:52:58,499 INFO  L324         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2021-11-22 20:52:58,499 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [449090012] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-22 20:52:58,499 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2021-11-22 20:52:58,499 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5
[2021-11-22 20:52:58,500 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453570424]
[2021-11-22 20:52:58,500 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-22 20:52:58,500 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-11-22 20:52:58,500 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-22 20:52:58,500 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-11-22 20:52:58,500 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-11-22 20:52:58,501 INFO  L87              Difference]: Start difference. First operand 5570 states and 8010 transitions. Second operand  has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-22 20:52:58,686 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-22 20:52:58,686 INFO  L93              Difference]: Finished difference Result 9504 states and 13569 transitions.
[2021-11-22 20:52:58,687 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2021-11-22 20:52:58,687 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55
[2021-11-22 20:52:58,687 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-22 20:52:58,700 INFO  L225             Difference]: With dead ends: 9504
[2021-11-22 20:52:58,700 INFO  L226             Difference]: Without dead ends: 5572
[2021-11-22 20:52:58,709 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-11-22 20:52:58,710 INFO  L933         BasicCegarLoop]: 1342 mSDtfsCounter, 716 mSDsluCounter, 990 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 728 SdHoareTripleChecker+Valid, 2332 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2021-11-22 20:52:58,710 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [728 Valid, 2332 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2021-11-22 20:52:58,714 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5572 states.
[2021-11-22 20:52:58,861 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5572 to 5570.
[2021-11-22 20:52:58,868 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5570 states, 5331 states have (on average 1.381541924592009) internal successors, (7365), 5335 states have internal predecessors, (7365), 174 states have call successors, (174), 60 states have call predecessors, (174), 60 states have return successors, (462), 174 states have call predecessors, (462), 174 states have call successors, (462)
[2021-11-22 20:52:58,882 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5570 states to 5570 states and 8001 transitions.
[2021-11-22 20:52:58,883 INFO  L78                 Accepts]: Start accepts. Automaton has 5570 states and 8001 transitions. Word has length 55
[2021-11-22 20:52:58,883 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-11-22 20:52:58,883 INFO  L470      AbstractCegarLoop]: Abstraction has 5570 states and 8001 transitions.
[2021-11-22 20:52:58,883 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-22 20:52:58,884 INFO  L276                IsEmpty]: Start isEmpty. Operand 5570 states and 8001 transitions.
[2021-11-22 20:52:58,886 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 57
[2021-11-22 20:52:58,886 INFO  L506         BasicCegarLoop]: Found error trace
[2021-11-22 20:52:58,886 INFO  L514         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]
[2021-11-22 20:52:58,940 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2021-11-22 20:52:59,107 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11
[2021-11-22 20:52:59,108 INFO  L402      AbstractCegarLoop]: === Iteration 13 === Targeting if_ioctlErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2021-11-22 20:52:59,108 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-11-22 20:52:59,108 INFO  L85        PathProgramCache]: Analyzing trace with hash -8742972, now seen corresponding path program 1 times
[2021-11-22 20:52:59,108 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-22 20:52:59,108 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258709009]
[2021-11-22 20:52:59,108 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-22 20:52:59,108 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-22 20:52:59,219 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-22 20:52:59,303 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-22 20:52:59,304 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-22 20:52:59,304 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258709009]
[2021-11-22 20:52:59,304 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258709009] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-22 20:52:59,304 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-22 20:52:59,304 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-11-22 20:52:59,304 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143355751]
[2021-11-22 20:52:59,305 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-22 20:52:59,305 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-11-22 20:52:59,305 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-22 20:52:59,305 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-11-22 20:52:59,305 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-11-22 20:52:59,306 INFO  L87              Difference]: Start difference. First operand 5570 states and 8001 transitions. Second operand  has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-22 20:52:59,493 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-22 20:52:59,493 INFO  L93              Difference]: Finished difference Result 11169 states and 16474 transitions.
[2021-11-22 20:52:59,494 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-11-22 20:52:59,494 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56
[2021-11-22 20:52:59,494 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-22 20:52:59,510 INFO  L225             Difference]: With dead ends: 11169
[2021-11-22 20:52:59,510 INFO  L226             Difference]: Without dead ends: 5612
[2021-11-22 20:52:59,534 INFO  L932         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
[2021-11-22 20:52:59,535 INFO  L933         BasicCegarLoop]: 1024 mSDtfsCounter, 19 mSDsluCounter, 982 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 2006 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2021-11-22 20:52:59,535 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 2006 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2021-11-22 20:52:59,543 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5612 states.
[2021-11-22 20:52:59,752 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5612 to 5608.
[2021-11-22 20:52:59,757 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5608 states, 5364 states have (on average 1.3791946308724832) internal successors, (7398), 5373 states have internal predecessors, (7398), 174 states have call successors, (174), 60 states have call predecessors, (174), 65 states have return successors, (477), 174 states have call predecessors, (477), 174 states have call successors, (477)
[2021-11-22 20:52:59,768 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5608 states to 5608 states and 8049 transitions.
[2021-11-22 20:52:59,769 INFO  L78                 Accepts]: Start accepts. Automaton has 5608 states and 8049 transitions. Word has length 56
[2021-11-22 20:52:59,769 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-11-22 20:52:59,769 INFO  L470      AbstractCegarLoop]: Abstraction has 5608 states and 8049 transitions.
[2021-11-22 20:52:59,769 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-22 20:52:59,769 INFO  L276                IsEmpty]: Start isEmpty. Operand 5608 states and 8049 transitions.
[2021-11-22 20:52:59,771 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 57
[2021-11-22 20:52:59,771 INFO  L506         BasicCegarLoop]: Found error trace
[2021-11-22 20:52:59,771 INFO  L514         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]
[2021-11-22 20:52:59,771 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2021-11-22 20:52:59,771 INFO  L402      AbstractCegarLoop]: === Iteration 14 === Targeting if_ioctlErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2021-11-22 20:52:59,772 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-11-22 20:52:59,772 INFO  L85        PathProgramCache]: Analyzing trace with hash 131805638, now seen corresponding path program 1 times
[2021-11-22 20:52:59,772 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-22 20:52:59,772 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306032613]
[2021-11-22 20:52:59,772 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-22 20:52:59,772 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-22 20:52:59,872 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-22 20:52:59,961 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-22 20:52:59,961 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-22 20:52:59,961 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306032613]
[2021-11-22 20:52:59,961 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306032613] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-22 20:52:59,961 INFO  L186   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-22 20:52:59,962 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-11-22 20:52:59,962 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832357916]
[2021-11-22 20:52:59,962 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-22 20:52:59,962 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-11-22 20:52:59,962 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-22 20:52:59,963 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-11-22 20:52:59,963 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-11-22 20:52:59,963 INFO  L87              Difference]: Start difference. First operand 5608 states and 8049 transitions. Second operand  has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-22 20:53:00,125 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-22 20:53:00,125 INFO  L93              Difference]: Finished difference Result 11262 states and 16514 transitions.
[2021-11-22 20:53:00,126 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2021-11-22 20:53:00,126 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56
[2021-11-22 20:53:00,126 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-22 20:53:00,140 INFO  L225             Difference]: With dead ends: 11262
[2021-11-22 20:53:00,140 INFO  L226             Difference]: Without dead ends: 5667
[2021-11-22 20:53:00,152 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2021-11-22 20:53:00,153 INFO  L933         BasicCegarLoop]: 1033 mSDtfsCounter, 30 mSDsluCounter, 3089 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 4122 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2021-11-22 20:53:00,153 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 4122 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2021-11-22 20:53:00,157 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5667 states.
[2021-11-22 20:53:00,294 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5667 to 5640.
[2021-11-22 20:53:00,299 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5640 states, 5392 states have (on average 1.3757418397626113) internal successors, (7418), 5405 states have internal predecessors, (7418), 174 states have call successors, (174), 60 states have call predecessors, (174), 69 states have return successors, (428), 174 states have call predecessors, (428), 174 states have call successors, (428)
[2021-11-22 20:53:00,309 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5640 states to 5640 states and 8020 transitions.
[2021-11-22 20:53:00,309 INFO  L78                 Accepts]: Start accepts. Automaton has 5640 states and 8020 transitions. Word has length 56
[2021-11-22 20:53:00,310 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-11-22 20:53:00,310 INFO  L470      AbstractCegarLoop]: Abstraction has 5640 states and 8020 transitions.
[2021-11-22 20:53:00,310 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-22 20:53:00,310 INFO  L276                IsEmpty]: Start isEmpty. Operand 5640 states and 8020 transitions.
[2021-11-22 20:53:00,312 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 64
[2021-11-22 20:53:00,312 INFO  L506         BasicCegarLoop]: Found error trace
[2021-11-22 20:53:00,312 INFO  L514         BasicCegarLoop]: trace histogram [3, 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]
[2021-11-22 20:53:00,312 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2021-11-22 20:53:00,312 INFO  L402      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2021-11-22 20:53:00,313 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-11-22 20:53:00,313 INFO  L85        PathProgramCache]: Analyzing trace with hash 2040723050, now seen corresponding path program 1 times
[2021-11-22 20:53:00,313 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-22 20:53:00,313 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37174195]
[2021-11-22 20:53:00,313 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-22 20:53:00,313 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-22 20:53:00,949 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-11-22 20:53:00,949 INFO  L352             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-11-22 20:53:01,806 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-11-22 20:53:01,875 INFO  L133   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-11-22 20:53:01,876 INFO  L628         BasicCegarLoop]: Counterexample is feasible
[2021-11-22 20:53:01,877 INFO  L764   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining)
[2021-11-22 20:53:01,878 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining)
[2021-11-22 20:53:01,878 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining)
[2021-11-22 20:53:01,879 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining)
[2021-11-22 20:53:01,879 INFO  L764   garLoopResultBuilder]: Registering result UNKNOWN for location if_ioctlErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining)
[2021-11-22 20:53:01,879 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2021-11-22 20:53:01,881 INFO  L732         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-22 20:53:01,882 INFO  L179   ceAbstractionStarter]: Computing trace abstraction results
[2021-11-22 20:53:01,993 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 08:53:01 BoogieIcfgContainer
[2021-11-22 20:53:01,993 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-11-22 20:53:01,994 INFO  L113        PluginConnector]: ------------------------Witness Printer----------------------------
[2021-11-22 20:53:01,994 INFO  L271        PluginConnector]: Initializing Witness Printer...
[2021-11-22 20:53:01,995 INFO  L275        PluginConnector]: Witness Printer initialized
[2021-11-22 20:53:01,995 INFO  L185        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 08:52:44" (3/4) ...
[2021-11-22 20:53:01,998 INFO  L140         WitnessPrinter]: No result that supports witness generation found
[2021-11-22 20:53:01,998 INFO  L132        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-11-22 20:53:01,998 INFO  L158              Benchmark]: Toolchain (without parser) took 71749.25ms. Allocated memory was 104.9MB in the beginning and 1.6GB in the end (delta: 1.5GB). Free memory was 55.0MB in the beginning and 1.1GB in the end (delta: -1.0GB). Peak memory consumption was 440.7MB. Max. memory is 16.1GB.
[2021-11-22 20:53:01,999 INFO  L158              Benchmark]: CDTParser took 0.16ms. Allocated memory is still 81.8MB. Free memory was 39.8MB in the beginning and 39.7MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB.
[2021-11-22 20:53:02,000 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 2863.37ms. Allocated memory was 104.9MB in the beginning and 251.7MB in the end (delta: 146.8MB). Free memory was 55.0MB in the beginning and 118.6MB in the end (delta: -63.6MB). Peak memory consumption was 93.4MB. Max. memory is 16.1GB.
[2021-11-22 20:53:02,000 INFO  L158              Benchmark]: Boogie Procedure Inliner took 365.10ms. Allocated memory is still 251.7MB. Free memory was 118.6MB in the beginning and 135.0MB in the end (delta: -16.4MB). Peak memory consumption was 39.1MB. Max. memory is 16.1GB.
[2021-11-22 20:53:02,000 INFO  L158              Benchmark]: Boogie Preprocessor took 185.37ms. Allocated memory is still 251.7MB. Free memory was 135.0MB in the beginning and 106.5MB in the end (delta: 28.6MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB.
[2021-11-22 20:53:02,001 INFO  L158              Benchmark]: RCFGBuilder took 50602.06ms. Allocated memory was 251.7MB in the beginning and 987.8MB in the end (delta: 736.1MB). Free memory was 106.5MB in the beginning and 721.2MB in the end (delta: -614.7MB). Peak memory consumption was 576.2MB. Max. memory is 16.1GB.
[2021-11-22 20:53:02,001 INFO  L158              Benchmark]: TraceAbstraction took 17722.38ms. Allocated memory was 987.8MB in the beginning and 1.6GB in the end (delta: 606.1MB). Free memory was 721.2MB in the beginning and 1.1GB in the end (delta: -382.8MB). Peak memory consumption was 784.3MB. Max. memory is 16.1GB.
[2021-11-22 20:53:02,002 INFO  L158              Benchmark]: Witness Printer took 3.69ms. Allocated memory is still 1.6GB. Free memory was 1.1GB in the beginning and 1.1GB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2021-11-22 20:53:02,003 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.16ms. Allocated memory is still 81.8MB. Free memory was 39.8MB in the beginning and 39.7MB in the end (delta: 70.0kB). There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 2863.37ms. Allocated memory was 104.9MB in the beginning and 251.7MB in the end (delta: 146.8MB). Free memory was 55.0MB in the beginning and 118.6MB in the end (delta: -63.6MB). Peak memory consumption was 93.4MB. Max. memory is 16.1GB.
 * Boogie Procedure Inliner took 365.10ms. Allocated memory is still 251.7MB. Free memory was 118.6MB in the beginning and 135.0MB in the end (delta: -16.4MB). Peak memory consumption was 39.1MB. Max. memory is 16.1GB.
 * Boogie Preprocessor took 185.37ms. Allocated memory is still 251.7MB. Free memory was 135.0MB in the beginning and 106.5MB in the end (delta: 28.6MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB.
 * RCFGBuilder took 50602.06ms. Allocated memory was 251.7MB in the beginning and 987.8MB in the end (delta: 736.1MB). Free memory was 106.5MB in the beginning and 721.2MB in the end (delta: -614.7MB). Peak memory consumption was 576.2MB. Max. memory is 16.1GB.
 * TraceAbstraction took 17722.38ms. Allocated memory was 987.8MB in the beginning and 1.6GB in the end (delta: 606.1MB). Free memory was 721.2MB in the beginning and 1.1GB in the end (delta: -382.8MB). Peak memory consumption was 784.3MB. Max. memory is 16.1GB.
 * Witness Printer took 3.69ms. Allocated memory is still 1.6GB. Free memory was 1.1GB in the beginning and 1.1GB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - UnprovableResult [Line: 7097]: Unable to prove that call to reach_error is unreachable
    Unable to prove that call to reach_error is unreachable
 Reason: overapproximation of large string literal at line 6835, overapproximation of bitwiseAnd at line 6930. 
Possible FailurePath: 
[L4814]                      int gigaset_debuglevel ;
[L6831]                      static struct list_head drivers = {& drivers, & drivers};
[L6832-L6836]                static spinlock_t driver_lock = {{{{0U}, 3735899821U, 4294967295U, (void *)0x0fffffffffffffffUL, {(struct lock_class_key *)0,
                                                                     {(struct lock_class *)0,
                                                                      (struct lock_class *)0},
                                                                     "driver_lock",
                                                                     0, 0UL}}}};
[L7093]                      int LDV_IN_INTERRUPT ;
[L7101]                      int ldv_module_refcounter = 1;
[L7611-L7632]                static struct tty_operations const if_ops =
     {(struct tty_struct *(*)(struct tty_driver * , struct inode * , int ))0, (int (*)(struct tty_driver * ,
                                                                                      struct tty_struct * ))0,
    (void (*)(struct tty_driver * , struct tty_struct * ))0, & if_open, & if_close,
    (void (*)(struct tty_struct * ))0, (void (*)(struct tty_struct * ))0, & if_write,
    (int (*)(struct tty_struct * , unsigned char ))0, (void (*)(struct tty_struct * ))0,
    & if_write_room, & if_chars_in_buffer, & if_ioctl, (long (*)(struct tty_struct * ,
                                                                 unsigned int , unsigned long ))0,
    & if_set_termios, & if_throttle, & if_unthrottle, (void (*)(struct tty_struct * ))0,
    (void (*)(struct tty_struct * ))0, (void (*)(struct tty_struct * ))0, (int (*)(struct tty_struct * ,
                                                                                   int ))0,
    (void (*)(struct tty_struct * ))0, (void (*)(struct tty_struct * ))0, (void (*)(struct tty_struct * ,
                                                                                    int ))0,
    (void (*)(struct tty_struct * , char ))0, & if_tiocmget, & if_tiocmset, (int (*)(struct tty_struct * ,
                                                                                      struct winsize * ))0,
    (int (*)(struct tty_struct * , struct termiox * ))0, (int (*)(struct tty_struct * ,
                                                                  struct serial_icounter_struct * ))0,
    (int (*)(struct tty_driver * , int , char * ))0, (int (*)(struct tty_driver * ,
                                                               int ))0, (void (*)(struct tty_driver * ,
                                                                                   int ,
                                                                                   char ))0,
    (struct file_operations const *)0};
[L9090-L9093]                static struct device_attribute dev_attr_cidmode = {{"cidmode", 420U, (struct lock_class_key *)0, {{{(char)0}, {(char)0}, {(char)0},
                                                    {(char)0}, {(char)0}, {(char)0},
                                                    {(char)0}, {(char)0}}}}, & show_cidmode,
    & set_cidmode};
[L9169-L9233]                struct reply_t gigaset_tab_nocid[64U] =
  { {-27, -1, -1, 100, 100, 1, {29, 0, 0}, (char *)0},
        {-105, 100, 100, -1, 101, 3, {0, 0, 0}, (char *)"Z\r"},
        {0, 101, 103, -1, 120, 5, {30, 0, 0}, (char *)"+GMR\r"},
        {-105, 101, 101, -1, 102, 5, {0, 0, 0}, (char *)"Z\r"},
        {1, 101, 101, -1, 102, 5, {0, 0, 0}, (char *)"Z\r"},
        {-105, 102, 102, -1, 108, 5, {1, 0, 0}, (char *)"^SDLE=0\r"},
        {0, 108, 108, -1, 104, -1, {0, 0, 0}, (char *)0},
        {101, 104, 104, 0, 103, 5, {0, 0, 0}, (char *)"Z\r"},
        {-105, 104, 104, -1, 0, 0, {3, 0, 0}, (char *)0},
        {1, 108, 108, -1, 0, 0, {3, 0, 0}, (char *)0},
        {-105, 108, 108, -1, 105, 2, {2, 4, 29}, (char *)0},
        {-105, 105, 105, -1, 103, 5, {0, 0, 0}, (char *)"Z\r"},
        {1, 102, 102, -1, 107, 5, {0, 0, 0}, (char *)"^GETPRE\r"},
        {0, 107, 107, -1, 0, 0, {5, 0, 0}, (char *)0},
        {1, 107, 107, -1, 0, 0, {3, 0, 0}, (char *)0},
        {-105, 107, 107, -1, 0, 0, {3, 0, 0}, (char *)0},
        {1, 103, 103, -1, 0, 0, {3, 0, 0}, (char *)0},
        {-105, 103, 103, -1, 0, 0, {3, 0, 0}, (char *)0},
        {-20, 120, 120, -1, 121, -1, {31, 0, 0}, (char *)0},
        {-105, 120, 121, -1, 0, 0, {32, 6, 0}, (char *)0},
        {1, 120, 121, -1, 0, 0, {32, 6, 0}, (char *)0},
        {0, 121, 121, -1, 0, 0, {33, 6, 0}, (char *)0},
        {-27, 0, 0, 200, 201, 5, {0, 0, 0}, (char *)"^SDLE=0\r"},
        {0, 201, 201, -1, 202, -1, {0, 0, 0}, (char *)0},
        {101, 202, 202, 0, 0, 0, {7, 0, 0}, (char *)0},
        {-9, 200, 249, -1, 0, 0, {47, 0, 0}, (char *)0},
        {1, 200, 249, -1, 0, 0, {9, 0, 0}, (char *)0},
        {-105, 200, 249, -1, 0, 0, {9, 0, 0}, (char *)0},
        {-27, 0, 0, 250, 251, 5, {0, 0, 0}, (char *)"^SDLE=1\r"},
        {0, 251, 251, -1, 252, -1, {0, 0, 0}, (char *)0},
        {101, 252, 252, 1, 0, 0, {8, 0, 0}, (char *)0},
        {1, 250, 299, -1, 0, 0, {10, 0, 0}, (char *)0},
        {-105, 250, 299, -1, 0, 0, {10, 0, 0}, (char *)0},
        {4, -1, -1, -1, -1, -1, {11, 0, 0}, (char *)0},
        {-27, 0, 0, 300, 301, 5, {0, 0, 0}, (char *)"^SGCI?\r"},
        {0, 301, 301, -1, 302, -1, {0, 0, 0}, (char *)0},
        {3, 302, 302, -1, 0, 0, {12, 0, 0}, (char *)0},
        {1, 301, 349, -1, 0, 0, {13, 0, 0}, (char *)0},
        {-105, 301, 349, -1, 0, 0, {13, 0, 0}, (char *)0},
        {-27, 0, 0, 10, 150, 5, {0, 0, 0}, (char *)"^SGCI=1\r"},
        {0, 150, 150, -1, 0, 0, {54, 0, 0}, (char *)0},
        {1, 150, 150, -1, 0, 0, {55, 0, 0}, (char *)0},
        {-105, 150, 150, -1, 0, 0, {55, 0, 0}, (char *)0},
        {-27, 0, 0, 11, 160, 5, {0, 0, 0}, (char *)"Z\r"},
        {0, 160, 160, -1, 0, 0, {52, 0, 0}, (char *)0},
        {1, 160, 160, -1, 0, 0, {53, 0, 0}, (char *)0},
        {-105, 160, 160, -1, 0, 0, {53, 0, 0}, (char *)0},
        {-27, 0, 0, 350, 0, 0, {36, 0, 0}, (char *)0},
        {-27, 0, 0, 500, 504, 5, {0, 0, 0}, (char *)"Z\r"},
        {0, 504, 504, -1, 0, 0, {14, 0, 0}, (char *)0},
        {1, 501, 599, -1, 0, 0, {15, 0, 0}, (char *)0},
        {-105, 501, 599, -1, 0, 0, {15, 0, 0}, (char *)0},
        {-9, 501, 599, -1, 0, 0, {49, 0, 0}, (char *)0},
        {-107, -1, -1, -1, -1, -1, {51, 0, 0}, (char *)0},
        {-112, -1, -1, -1, -1, -1, {44, 0, 0}, (char *)0},
        {-106, -1, -1, -1, -1, -1, {56, 0, 0}, (char *)0},
        {-110, -1, -1, -1, -1, -1, {45, 0, 0}, (char *)0},
        {-111, -1, -1, -1, -1, -1, {46, 0, 0}, (char *)0},
        {-108, -1, -1, -1, -1, -1, {50, 0, 0}, (char *)0},
        {1, -1, -1, -1, -1, -1, {35, 0, 0}, (char *)0},
        {6, -1, -1, -1, -1, -1, {37, 0, 0}, (char *)0},
        {-19, -1, -1, -1, -1, -1, {16, 0, 0}, (char *)0},
        {-26, -1, -1, -1, -1, -1, {17, 0, 0}, (char *)0},
        {-28, 0, 0, 0, 0, 0, {0, 0, 0}, (char *)0}};
[L9234-L9298]                struct reply_t gigaset_tab_cid[64U] =
  { {-115, -1, -1, -1, -1, -1, {40, 0, 0}, (char *)0},
        {-27, 0, 0, 600, 601, 5, {103, 0, 0}, (char *)0},
        {0, 601, 601, -1, 603, 5, {104, 0, 0}, (char *)0},
        {0, 603, 603, -1, 604, 5, {105, 0, 0}, (char *)0},
        {0, 604, 604, -1, 605, 5, {102, 0, 0}, (char *)0},
        {-21, 605, 605, -1, 606, 5, {106, 0, 0}, (char *)0},
        {0, 605, 605, -1, 606, 5, {106, 0, 0}, (char *)0},
        {-21, 606, 606, -1, 607, 5, {100, 0, 0}, (char *)0},
        {0, 606, 606, -1, 607, 5, {100, 0, 0}, (char *)0},
        {0, 607, 607, -1, 608, 5, {0, 0, 0}, (char *)"+VLS=17\r"},
        {0, 608, 608, -1, 609, -1, {0, 0, 0}, (char *)0},
        {100, 609, 609, 1, 610, 5, {101, 0, 0}, (char *)0},
        {0, 610, 610, -1, 650, 0, {18, 0, 0}, (char *)0},
        {1, 601, 610, -1, 0, 0, {19, 0, 0}, (char *)0},
        {-105, 601, 610, -1, 0, 0, {19, 0, 0}, (char *)0},
        {-117, 650, 650, -1, 651, -1, {0, 0, 0}, (char *)0},
        {5, 609, 651, 17, -1, -1, {16, 0, 0}, (char *)0},
        {102, 610, 651, -1, -1, -1, {16, 0, 0}, (char *)0},
        {104, 610, 651, -1, -1, -1, {16, 0, 0}, (char *)0},
        {100, 650, 651, 2, -1, -1, {16, 0, 0}, (char *)0},
        {100, 650, 650, 3, 800, -1, {21, 0, 0}, (char *)0},
        {100, 651, 651, 3, 800, -1, {21, 39, 0}, (char *)0},
        {100, 750, 750, 3, 800, -1, {21, 0, 0}, (char *)0},
        {100, 751, 751, 3, 800, -1, {21, 39, 0}, (char *)0},
        {-117, 800, 800, -1, 800, -1, {39, 0, 0}, (char *)0},
        {100, 650, 651, 4, 0, 0, {22, 0, 0}, (char *)0},
        {100, 750, 751, 4, 0, 0, {24, 0, 0}, (char *)0},
        {100, 800, 800, 4, 0, 0, {24, 0, 0}, (char *)0},
        {-116, -1, -1, -1, -1, -1, {43, 0, 0}, (char *)0},
        {-27, -1, -1, 400, 401, 5, {0, 0, 0}, (char *)"+VLS=0\r"},
        {0, 401, 401, -1, 402, 5, {0, 0, 0}, (char *)0},
        {5, 402, 402, 0, 403, 5, {0, 0, 0}, (char *)0},
        {100, 403, 403, 6, -1, -1, {16, 0, 0}, (char *)0},
        {100, 403, 403, 5, 0, 0, {20, 0, 0}, (char *)0},
        {-9, 401, 403, -1, 0, 0, {48, 0, 0}, (char *)0},
        {1, 401, 401, -1, 0, 0, {25, 0, 0}, (char *)0},
        {-105, 401, 403, -1, 0, 0, {25, 0, 0}, (char *)0},
        {-118, 0, 0, -1, 0, -1, {38, 0, 0}, (char *)0},
        {106, 700, 700, -1, -1, -1, {0, 0, 0}, (char *)0},
        {107, 700, 700, -1, -1, -1, {0, 0, 0}, (char *)0},
        {103, 700, 700, -1, -1, -1, {0, 0, 0}, (char *)0},
        {104, 700, 700, -1, -1, -1, {0, 0, 0}, (char *)0},
        {102, 700, 700, -1, -1, -1, {0, 0, 0}, (char *)0},
        {-105, 700, 700, -1, 720, 720, {26, 0, 0}, (char *)0},
        {-118, 720, 720, -1, 0, -1, {38, 0, 0}, (char *)0},
        {-114, -1, -1, -1, -1, -1, {41, 0, 0}, (char *)0},
        {-27, 720, 720, 720, 721, 5, {104, 0, 0}, (char *)0},
        {0, 721, 721, -1, 722, 5, {100, 0, 0}, (char *)0},
        {0, 722, 722, -1, 723, 5, {0, 0, 0}, (char *)"+VLS=17\r"},
        {0, 723, 723, -1, 724, 5, {0, 0, 0}, (char *)0},
        {5, 724, 724, 17, 750, 50, {27, 0, 0}, (char *)0},
        {1, 721, 729, -1, 0, 0, {28, 0, 0}, (char *)0},
        {-105, 721, 729, -1, 0, 0, {28, 0, 0}, (char *)0},
        {100, 700, 729, 5, 0, 0, {28, 0, 0}, (char *)0},
        {100, 700, 729, 3, 0, 0, {28, 0, 0}, (char *)0},
        {100, 700, 729, 4, 0, 0, {28, 0, 0}, (char *)0},
        {-117, 750, 750, -1, 751, -1, {0, 0, 0}, (char *)0},
        {-105, 750, 751, -1, 0, 0, {23, 0, 0}, (char *)0},
        {-118, -1, -1, -1, -1, -1, {38, 0, 0}, (char *)0},
        {105, -1, -1, -1, -1, -1, {16, 0, 0}, (char *)0},
        {6, -1, -1, -1, -1, -1, {37, 0, 0}, (char *)0},
        {-19, -1, -1, -1, -1, -1, {16, 0, 0}, (char *)0},
        {-26, -1, -1, -1, -1, -1, {17, 0, 0}, (char *)0},
        {-28, 0, 0, 0, 0, 0, {0, 0, 0}, (char *)0}};
[L9299-L9314]                static struct resp_type_t const resp_type[15U] =
  { {(unsigned char *)"OK", 0, 0},
        {(unsigned char *)"ERROR", 1, 0},
        {(unsigned char *)"ZSAU", 100, 1},
        {(unsigned char *)"ZCAU", 6, 6},
        {(unsigned char *)"RING", 4, 2},
        {(unsigned char *)"ZGCI", 3, 3},
        {(unsigned char *)"ZVLS", 5, 3},
        {(unsigned char *)"ZCTP", 102, 3},
        {(unsigned char *)"ZDLE", 101, 3},
        {(unsigned char *)"ZHLC", 107, 4},
        {(unsigned char *)"ZBC", 106, 4},
        {(unsigned char *)"NMBR", 103, 4},
        {(unsigned char *)"ZCPN", 104, 4},
        {(unsigned char *)"ZCON", 105, 4},
        {(unsigned char *)0, 0, 0}};
[L9315-L9321]                static struct zsau_resp_t const zsau_resp[7U] = { {(unsigned char *)"OUTGOING_CALL_PROCEEDING", 1},
        {(unsigned char *)"CALL_DELIVERED", 2},
        {(unsigned char *)"ACTIVE", 3},
        {(unsigned char *)"DISCONNECT_IND", 4},
        {(unsigned char *)"NULL", 5},
        {(unsigned char *)"DISCONNECT_REQ", 6},
        {(unsigned char *)0, -1}};
[L13314-L13343]              static struct __anonstruct_cip2bchlc_198 cip2bchlc[29U] =
  { {(u8 *)0, (u8 *)0},
        {(u8 *)"8090A3", (u8 *)0},
        {(u8 *)"8890", (u8 *)0},
        {(u8 *)"8990", (u8 *)0},
        {(u8 *)"9090A3", (u8 *)0},
        {(u8 *)"9190", (u8 *)0},
        {(u8 *)"9890", (u8 *)0},
        {(u8 *)"88C0C6E6", (u8 *)0},
        {(u8 *)"8890218F", (u8 *)0},
        {(u8 *)"9190A5", (u8 *)0},
        {(u8 *)0, (u8 *)0},
        {(u8 *)0, (u8 *)0},
        {(u8 *)0, (u8 *)0},
        {(u8 *)0, (u8 *)0},
        {(u8 *)0, (u8 *)0},
        {(u8 *)0, (u8 *)0},
        {(u8 *)"8090A3", (u8 *)"9181"},
        {(u8 *)"9090A3", (u8 *)"9184"},
        {(u8 *)"8890", (u8 *)"91A1"},
        {(u8 *)"8890", (u8 *)"91A4"},
        {(u8 *)"8890", (u8 *)"91A8"},
        {(u8 *)"8890", (u8 *)"91B1"},
        {(u8 *)"8890", (u8 *)"91B2"},
        {(u8 *)"8890", (u8 *)"91B5"},
        {(u8 *)"8890", (u8 *)"91B8"},
        {(u8 *)"8890", (u8 *)"91C1"},
        {(u8 *)"9190A5", (u8 *)"9181"},
        {(u8 *)"9190A5", (u8 *)"916001"},
        {(u8 *)"8890", (u8 *)"916002"}};
[L16141]                     static unsigned long ignored_msg_dump_time ;
[L16193-L16217]              static struct __anonstruct_capi_send_handler_table_202 capi_send_handler_table[24U] =
  { {(u16 )34432U, & do_data_b3_req},
        {(u16 )34435U, & do_data_b3_resp},
        {(u16 )384U, & do_alert_req},
        {(u16 )899U, & do_nothing},
        {(u16 )33667U, & do_nothing},
        {(u16 )33408U, & do_connect_b3_req},
        {(u16 )33411U, & do_connect_b3_resp},
        {(u16 )34947U, & do_nothing},
        {(u16 )640U, & do_connect_req},
        {(u16 )643U, & do_connect_resp},
        {(u16 )33920U, & do_disconnect_b3_req},
        {(u16 )33923U, & do_nothing},
        {(u16 )1152U, & do_disconnect_req},
        {(u16 )1155U, & do_nothing},
        {(u16 )32896U, & do_facility_req},
        {(u16 )32899U, & do_nothing},
        {(u16 )1408U, & do_listen_req},
        {(u16 )16768U, & do_unsupported},
        {(u16 )34688U, & do_reset_b3_req},
        {(u16 )34691U, & do_nothing},
        {(u16 )2176U, & do_unsupported},
        {(u16 )2179U, & do_nothing},
        {(u16 )65408U, & do_nothing},
        {(u16 )65411U, & do_nothing}};
[L16578-L16607]              static struct file_operations const gigaset_proc_fops =
     {& __this_module, & seq_lseek, & seq_read, (ssize_t (*)(struct file * , char const * ,
                                                           size_t , loff_t * ))0,
    (ssize_t (*)(struct kiocb * , struct iovec const * , unsigned long , loff_t ))0,
    (ssize_t (*)(struct kiocb * , struct iovec const * , unsigned long , loff_t ))0,
    (int (*)(struct file * , void * , int (*)(void * , char const * , int , loff_t ,
                                              u64 , unsigned int ) ))0, (unsigned int (*)(struct file * ,
                                                                                            struct poll_table_struct * ))0,
    (long (*)(struct file * , unsigned int , unsigned long ))0, (long (*)(struct file * ,
                                                                            unsigned int ,
                                                                            unsigned long ))0,
    (int (*)(struct file * , struct vm_area_struct * ))0, & gigaset_proc_open, (int (*)(struct file * ,
                                                                                        fl_owner_t ))0,
    & single_release, (int (*)(struct file * , int ))0, (int (*)(struct kiocb * ,
                                                                  int ))0, (int (*)(int ,
                                                                                     struct file * ,
                                                                                     int ))0,
    (int (*)(struct file * , int , struct file_lock * ))0, (ssize_t (*)(struct file * ,
                                                                         struct page * ,
                                                                         int , size_t ,
                                                                         loff_t * ,
                                                                         int ))0,
    (unsigned long (*)(struct file * , unsigned long , unsigned long , unsigned long ,
                       unsigned long ))0, (int (*)(int ))0, (int (*)(struct file * ,
                                                                       int , struct file_lock * ))0,
    (ssize_t (*)(struct pipe_inode_info * , struct file * , loff_t * , size_t , unsigned int ))0,
    (ssize_t (*)(struct file * , loff_t * , struct pipe_inode_info * , size_t , unsigned int ))0,
    (int (*)(struct file * , long , struct file_lock ** ))0, (long (*)(struct file * ,
                                                                        int , loff_t ,
                                                                        loff_t ))0};
[L16666-L16669]              static struct capi_driver capi_driver_gigaset = {{(char )'g', (char )'i', (char )'g', (char )'a', (char )'s', (char )'e', (char )'t',
     (char )'\000'}, {(char )'1', (char )'.', (char )'0', (char )'\000'}, (int (*)(struct capi_driver * ,
                                                                                   capicardparams * ))0,
    {(struct list_head *)0, (struct list_head *)0}};
                 VAL         [__this_module={1152921504606846996:1152921504606846977}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=0, ldv_module_refcounter=1, resp_type={697:0}, zsau_resp={698:0}]
[L8811]                      struct tty_struct *var_group1 ;
[L8812]                      struct file *var_group2 ;
[L8813]                      int res_if_open_2 ;
[L8814]                      unsigned int var_if_ioctl_4_p1 ;
[L8815]                      unsigned long var_if_ioctl_4_p2 ;
[L8816]                      unsigned char const *var_if_write_7_p1 ;
[L8817]                      int var_if_write_7_p2 ;
[L8818]                      struct ktermios *var_group3 ;
[L8819]                      unsigned int var_if_tiocmset_6_p1 ;
[L8820]                      unsigned int var_if_tiocmset_6_p2 ;
[L8821]                      int ldv_s_if_ops_tty_operations ;
[L8822]                      int tmp ;
[L8823]                      int tmp___0 ;
[L8826]          CALL, EXPR  ldv_malloc(sizeof(struct list_head))
[L8805]          COND TRUE   __VERIFIER_nondet_bool()
[L8805]                      return 0;
                 VAL         [\old(size)=16, \result={0:0}, __this_module={1152921504606846996:1152921504606846977}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=0, ldv_module_refcounter=1, resp_type={697:0}, size=16, zsau_resp={698:0}]
[L8826]          RET, EXPR   ldv_malloc(sizeof(struct list_head))
[L8826]                      drivers.prev = ldv_malloc(sizeof(struct list_head))
[L8827]          CALL, EXPR  ldv_malloc(sizeof(struct list_head))
[L8805]          COND TRUE   __VERIFIER_nondet_bool()
[L8805]                      return 0;
                 VAL         [\old(size)=16, \result={0:0}, __this_module={1152921504606846996:1152921504606846977}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=0, ldv_module_refcounter=1, resp_type={697:0}, size=16, zsau_resp={698:0}]
[L8827]          RET, EXPR   ldv_malloc(sizeof(struct list_head))
[L8827]                      drivers.next = ldv_malloc(sizeof(struct list_head))
[L8828]                      ldv_s_if_ops_tty_operations = 0
[L8829]                      LDV_IN_INTERRUPT = 1
[L8830]          FCALL       ldv_initialize()
[L8948]                      tmp___0 = __VERIFIER_nondet_int()
[L8950]          COND TRUE   tmp___0 != 0
                 VAL         [__this_module={1152921504606846996:1152921504606846977}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_if_ops_tty_operations=0, resp_type={697:0}, tmp___0=1, zsau_resp={698:0}]
[L8835]                      tmp = __VERIFIER_nondet_int()
[L8837]          COND TRUE   tmp == 0
                 VAL         [__this_module={1152921504606846996:1152921504606846977}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_s_if_ops_tty_operations=0, resp_type={697:0}, tmp=0, tmp___0=1, zsau_resp={698:0}]
[L8873]          COND TRUE   ldv_s_if_ops_tty_operations == 0
[L8875]          CALL, EXPR  if_open(var_group1, var_group2)
[L7634]                      struct cardstate *cs ;
[L7635]                      unsigned long flags ;
[L7636]                      long tmp ;
[L7637]                      int tmp___0 ;
[L7638]                      int tmp___1 ;
[L7639]                      raw_spinlock_t *tmp___2 ;
[L7642-L7643]                tmp = __builtin_expect((long )(((unsigned int )gigaset_debuglevel & 524288U) != 0U),
                         0L)
                 VAL         [__this_module={1152921504606846996:1152921504606846977}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, filp={1152921504606846995:1152921504606847002}, filp={1152921504606846995:1152921504606847002}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, resp_type={697:0}, tmp=0, tty={691:0}, tty={691:0}, zsau_resp={698:0}]
[L7645]          COND FALSE  !(tmp != 0L)
                 VAL         [__this_module={1152921504606846996:1152921504606846977}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, filp={1152921504606846995:1152921504606847002}, filp={1152921504606846995:1152921504606847002}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, resp_type={697:0}, tmp=0, tty={691:0}, tty={691:0}, zsau_resp={698:0}]
[L7652]                      tty->driver_data = (void *)0
[L7653]          CALL, EXPR  gigaset_get_cs_by_tty(tty)
[L6958]                      struct cardstate *tmp ;
[L6960]          EXPR        tty->index
                 VAL         [__this_module={1152921504606846996:1152921504606846977}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, resp_type={697:0}, tty={691:0}, tty={691:0}, tty->index=0, zsau_resp={698:0}]
[L6960]          COND FALSE  !(tty->index < 0)
[L6963]          EXPR        tty->index
[L6963]          EXPR        tty->driver
[L6963]          EXPR        (tty->driver)->num
                 VAL         [(tty->driver)->num=705, __this_module={1152921504606846996:1152921504606846977}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, resp_type={697:0}, tty={691:0}, tty={691:0}, tty->driver={1152921504606846999:0}, tty->index=0, zsau_resp={698:0}]
[L6963]          COND FALSE  !(tty->index >= (tty->driver)->num)
[L6968]          EXPR        tty->index
[L6968]          EXPR        tty->driver
[L6968]          EXPR        (tty->driver)->minor_start
[L6968]          CALL, EXPR  gigaset_get_cs_by_minor((unsigned int )(tty->index + (tty->driver)->minor_start))
[L6902]                      unsigned long flags ;
[L6903]                      struct cardstate *ret ;
[L6904]                      struct gigaset_driver *drv ;
[L6905]                      unsigned int index ;
[L6906]                      raw_spinlock_t *tmp ;
[L6907]                      struct list_head const *__mptr ;
[L6908]                      struct list_head const *__mptr___0 ;
[L6911]                      ret = (struct cardstate *)0
[L6912]          CALL, EXPR  spinlock_check(& driver_lock)
[L4691]                      return (& lock->ldv_6060.rlock);
                 VAL         [\result={692:0}, __this_module={1152921504606846996:1152921504606846977}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, lock={692:0}, lock={692:0}, resp_type={697:0}, zsau_resp={698:0}]
[L6912]          RET, EXPR   spinlock_check(& driver_lock)
[L6912]                      tmp = spinlock_check(& driver_lock)
[L6913]          CALL, EXPR  _raw_spin_lock_irqsave(tmp)
[L16743]                     return __VERIFIER_nondet_ulong();
[L6913]          RET, EXPR   _raw_spin_lock_irqsave(tmp)
[L6913]                      flags = _raw_spin_lock_irqsave(tmp)
[L6914]          EXPR        drivers.next
[L6914]                      __mptr = (struct list_head const *)drivers.next
[L6915]                      drv = (struct gigaset_driver *)__mptr
                 VAL         [\old(minor)=0, __mptr={0:0}, __this_module={1152921504606846996:1152921504606846977}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, drv={0:0}, flags=1152921504606847014, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor=0, resp_type={697:0}, ret={0:0}, tmp={692:0}, zsau_resp={698:0}]
[L6945]          COND TRUE   (unsigned long )(& drv->list) != (unsigned long )(& drivers)
                 VAL         [\old(minor)=0, __mptr={0:0}, __this_module={1152921504606846996:1152921504606846977}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, drv={0:0}, flags=1152921504606847014, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor=0, resp_type={697:0}, ret={0:0}, tmp={692:0}, zsau_resp={698:0}]
[L6919]          EXPR        drv->minor
                 VAL         [\old(minor)=0, __mptr={0:0}, __this_module={1152921504606846996:1152921504606846977}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, drv={0:0}, drv->minor=0, flags=1152921504606847014, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor=0, resp_type={697:0}, ret={0:0}, tmp={692:0}, zsau_resp={698:0}]
[L6919]          COND FALSE  !(drv->minor > minor)
[L6922]          EXPR        drv->minor
[L6922]          EXPR        drv->minors
                 VAL         [\old(minor)=0, __mptr={0:0}, __this_module={1152921504606846996:1152921504606846977}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, drv={0:0}, drv->minor=0, drv->minors=4294967297, flags=1152921504606847014, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor=0, resp_type={697:0}, ret={0:0}, tmp={692:0}, zsau_resp={698:0}]
[L6922]          COND FALSE  !(drv->minor + drv->minors <= minor)
[L6927]          EXPR        drv->minor
[L6927]                      index = minor - drv->minor
[L6928]          CALL        spin_lock(& drv->lock)
[L4698]          FCALL       _raw_spin_lock(& lock->ldv_6060.rlock)
[L6928]          RET         spin_lock(& drv->lock)
[L6930]          EXPR        drv->cs
[L6930]          EXPR        (drv->cs + (unsigned long )index)->flags
                 VAL         [(drv->cs + (unsigned long )index)->flags=1152921504606847007, \old(minor)=0, __mptr={0:0}, __this_module={1152921504606846996:1152921504606846977}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, drv={0:0}, drv->cs={691:531}, flags=1152921504606847014, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, index=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor=0, resp_type={697:0}, ret={0:0}, tmp={692:0}, zsau_resp={698:0}]
[L6930]          COND TRUE   (int )(drv->cs + (unsigned long )index)->flags & 1
[L6931]          EXPR        drv->cs
[L6931]                      ret = drv->cs + (unsigned long )index
[L6935]          CALL        spin_unlock(& drv->lock)
[L4707]          FCALL       _raw_spin_unlock(& lock->ldv_6060.rlock)
[L6935]          RET         spin_unlock(& drv->lock)
[L6937]          COND TRUE   (unsigned long )ret != (unsigned long )((struct cardstate *)0)
                 VAL         [\old(minor)=0, __mptr={0:0}, __this_module={1152921504606846996:1152921504606846977}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, drv={0:0}, flags=1152921504606847014, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, index=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor=0, resp_type={697:0}, ret={691:531}, tmp={692:0}, zsau_resp={698:0}]
[L6952]          CALL        spin_unlock_irqrestore(& driver_lock, flags)
[L4716]          FCALL       _raw_spin_unlock_irqrestore(& lock->ldv_6060.rlock, flags)
[L6952]          RET         spin_unlock_irqrestore(& driver_lock, flags)
[L6954]                      return (ret);
                 VAL         [\old(minor)=0, \result={691:531}, __mptr={0:0}, __this_module={1152921504606846996:1152921504606846977}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, drv={0:0}, flags=1152921504606847014, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, index=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, minor=0, resp_type={697:0}, ret={691:531}, tmp={692:0}, zsau_resp={698:0}]
[L6968]          RET, EXPR   gigaset_get_cs_by_minor((unsigned int )(tty->index + (tty->driver)->minor_start))
[L6968]                      tmp = gigaset_get_cs_by_minor((unsigned int )(tty->index + (tty->driver)->minor_start))
[L6970]                      return (tmp);
                 VAL         [\result={691:531}, __this_module={1152921504606846996:1152921504606846977}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, resp_type={697:0}, tmp={691:531}, tty={691:0}, tty={691:0}, zsau_resp={698:0}]
[L7653]          RET, EXPR   gigaset_get_cs_by_tty(tty)
[L7653]                      cs = gigaset_get_cs_by_tty(tty)
[L7655]          COND FALSE  !((unsigned long )cs == (unsigned long )((struct cardstate *)0))
[L7659]          EXPR        cs->driver
[L7659]          EXPR        (cs->driver)->owner
[L7659]          CALL, EXPR  ldv_try_module_get_1((cs->driver)->owner)
[L7175]                      int tmp ;
[L7178]          CALL, EXPR  ldv_try_module_get(module)
[L7113]                      int module_get_succeeded ;
                 VAL         [__this_module={1152921504606846996:1152921504606846977}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, module={-705:706}, module={-705:706}, resp_type={697:0}, zsau_resp={698:0}]
[L7115]          COND TRUE   (unsigned long )module != (unsigned long )((struct module *)0)
[L7117]          CALL, EXPR  ldv_undefined_int()
[L16866]                     return __VERIFIER_nondet_int();
[L7117]          RET, EXPR   ldv_undefined_int()
[L7117]                      module_get_succeeded = ldv_undefined_int()
[L7119]          COND TRUE   module_get_succeeded == 1
[L7120]                      ldv_module_refcounter = ldv_module_refcounter + 1
[L7121]                      return (1);
                 VAL         [\result=1, __this_module={1152921504606846996:1152921504606846977}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, module={-705:706}, module={-705:706}, module_get_succeeded=1, resp_type={697:0}, zsau_resp={698:0}]
[L7178]          RET, EXPR   ldv_try_module_get(module)
[L7178]                      tmp = ldv_try_module_get(module)
[L7180]                      return (tmp);
                 VAL         [__this_module={1152921504606846996:1152921504606846977}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, module={-705:706}, resp_type={697:0}, tmp=1, zsau_resp={698:0}]
[L7659]          RET, EXPR   ldv_try_module_get_1((cs->driver)->owner)
[L7659]                      tmp___0 = ldv_try_module_get_1((cs->driver)->owner)
[L7661]          COND FALSE  !(tmp___0 == 0)
[L7667]          CALL, EXPR  mutex_lock_interruptible_nested(& cs->mutex, 0U)
[L16884]                     return __VERIFIER_nondet_int();
[L7667]          RET, EXPR   mutex_lock_interruptible_nested(& cs->mutex, 0U)
[L7667]                      tmp___1 = mutex_lock_interruptible_nested(& cs->mutex, 0U)
[L7669]          COND FALSE  !(tmp___1 != 0)
[L7676]                      tty->driver_data = (void *)cs
[L7677]          EXPR        cs->open_count
[L7677]                      cs->open_count = cs->open_count + 1U
[L7678]          EXPR        cs->open_count
                 VAL         [__this_module={1152921504606846996:1152921504606846977}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, cs={691:531}, cs->open_count=710, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, filp={1152921504606846995:1152921504606847002}, filp={1152921504606846995:1152921504606847002}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, resp_type={697:0}, tmp=0, tmp___0=1, tmp___1=0, tty={691:0}, tty={691:0}, zsau_resp={698:0}]
[L7678]          COND FALSE  !(cs->open_count == 1U)
[L7689]          FCALL       mutex_unlock(& cs->mutex)
[L7691]                      return (0);
                 VAL         [\result=0, __this_module={1152921504606846996:1152921504606846977}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, cs={691:531}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, filp={1152921504606846995:1152921504606847002}, filp={1152921504606846995:1152921504606847002}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, resp_type={697:0}, tmp=0, tmp___0=1, tmp___1=0, tty={691:0}, tty={691:0}, zsau_resp={698:0}]
[L8875]          RET, EXPR   if_open(var_group1, var_group2)
[L8875]                      res_if_open_2 = if_open(var_group1, var_group2)
[L8876]          FCALL       ldv_check_return_value(res_if_open_2)
[L8878]          COND FALSE  !(res_if_open_2 != 0)
[L8882]                      ldv_s_if_ops_tty_operations = ldv_s_if_ops_tty_operations + 1
                 VAL         [__this_module={1152921504606846996:1152921504606846977}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, ldv_s_if_ops_tty_operations=1, res_if_open_2=0, resp_type={697:0}, tmp=0, tmp___0=1, var_group1={691:0}, var_group2={1152921504606846995:1152921504606847002}, zsau_resp={698:0}]
[L8948]                      tmp___0 = __VERIFIER_nondet_int()
[L8950]          COND TRUE   tmp___0 != 0
                 VAL         [__this_module={1152921504606846996:1152921504606846977}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, ldv_s_if_ops_tty_operations=1, res_if_open_2=0, resp_type={697:0}, tmp=0, tmp___0=1, var_group1={691:0}, var_group2={1152921504606846995:1152921504606847002}, zsau_resp={698:0}]
[L8835]                      tmp = __VERIFIER_nondet_int()
[L8837]          COND FALSE  !(tmp == 0)
                 VAL         [__this_module={1152921504606846996:1152921504606846977}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, ldv_s_if_ops_tty_operations=1, res_if_open_2=0, resp_type={697:0}, tmp=1, tmp___0=1, var_group1={691:0}, var_group2={1152921504606846995:1152921504606847002}, zsau_resp={698:0}]
[L8840]          COND TRUE   tmp == 1
                 VAL         [__this_module={1152921504606846996:1152921504606846977}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, ldv_s_if_ops_tty_operations=1, res_if_open_2=0, resp_type={697:0}, tmp=1, tmp___0=1, var_group1={691:0}, var_group2={1152921504606846995:1152921504606847002}, zsau_resp={698:0}]
[L8887]          COND TRUE   ldv_s_if_ops_tty_operations == 1
[L8889]          CALL        if_close(var_group1, var_group2)
[L7695]                      struct cardstate *cs ;
[L7696]                      unsigned long flags ;
[L7697]                      long tmp ;
[L7698]                      raw_spinlock_t *tmp___0 ;
[L7699]                      long tmp___1 ;
[L7701]          EXPR        tty->driver_data
[L7701]                      cs = (struct cardstate *)tty->driver_data
[L7702]          COND TRUE   (unsigned long )cs == (unsigned long )((struct cardstate *)0)
[L8889]          RET         if_close(var_group1, var_group2)
[L8890]                      ldv_s_if_ops_tty_operations = 0
                 VAL         [__this_module={1152921504606846996:1152921504606846977}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, ldv_s_if_ops_tty_operations=0, res_if_open_2=0, resp_type={697:0}, tmp=1, tmp___0=1, var_group1={691:0}, var_group2={1152921504606846995:1152921504606847002}, zsau_resp={698:0}]
[L8948]                      tmp___0 = __VERIFIER_nondet_int()
[L8950]          COND FALSE  !(tmp___0 != 0)
                 VAL         [__this_module={1152921504606846996:1152921504606846977}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, ldv_s_if_ops_tty_operations=0, res_if_open_2=0, resp_type={697:0}, tmp=1, tmp___0=0, var_group1={691:0}, var_group2={1152921504606846995:1152921504606847002}, zsau_resp={698:0}]
[L8953]          COND FALSE  !(ldv_s_if_ops_tty_operations != 0)
                 VAL         [__this_module={1152921504606846996:1152921504606846977}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, ldv_s_if_ops_tty_operations=0, res_if_open_2=0, resp_type={697:0}, tmp=1, tmp___0=0, var_group1={691:0}, var_group2={1152921504606846995:1152921504606847002}, zsau_resp={698:0}]
[L8961]          CALL        ldv_check_final_state()
[L7165]          COND TRUE   ldv_module_refcounter != 1
[L7167]          CALL        ldv_blast_assert()
[L7097]                      reach_error()
                 VAL         [__this_module={1152921504606846996:1152921504606846977}, capi_driver_gigaset={703:0}, capi_send_handler_table={701:0}, cip2bchlc={699:0}, dev_attr_cidmode={694:0}, driver_lock={692:0}, drivers={691:0}, gigaset_debuglevel=0, gigaset_proc_fops={702:0}, gigaset_tab_cid={696:0}, gigaset_tab_nocid={695:0}, if_ops={693:0}, ignored_msg_dump_time={700:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=2, resp_type={697:0}, zsau_resp={698:0}]

  - UnprovableResult [Line: 7097]: Unable to prove that call to reach_error is unreachable
    Unable to prove that call to reach_error is unreachable
 Reason: Not analyzed. 
  - UnprovableResult [Line: 7097]: Unable to prove that call to reach_error is unreachable
    Unable to prove that call to reach_error is unreachable
 Reason: Not analyzed. 
  - UnprovableResult [Line: 7097]: Unable to prove that call to reach_error is unreachable
    Unable to prove that call to reach_error is unreachable
 Reason: Not analyzed. 
  - UnprovableResult [Line: 7097]: Unable to prove that call to reach_error is unreachable
    Unable to prove that call to reach_error is unreachable
 Reason: Not analyzed. 
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 11 procedures, 759 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 17.6s, OverallIterations: 15, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14726 SdHoareTripleChecker+Valid, 5.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14676 mSDsluCounter, 54602 SdHoareTripleChecker+Invalid, 4.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 35103 mSDsCounter, 247 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1202 IncrementalHoareTripleChecker+Invalid, 1449 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 247 mSolverCounterUnsat, 19499 mSDtfsCounter, 1202 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 143 GetRequests, 93 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5640occurred in iteration=14, InterpolantAutomatonStates: 67, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 14 MinimizatonAttempts, 12267 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 4.3s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 674 NumberOfCodeBlocks, 674 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 596 ConstructedInterpolants, 0 QuantifiedInterpolants, 1611 SizeOfPredicates, 0 NumberOfNonLiveVariables, 8220 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 15 InterpolantComputations, 14 PerfectInterpolantSequences, 6/8 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
[2021-11-22 20:53:02,043 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---

Execution finished normally
Using bit-precise analysis
Retrying with bit-precise analysis

### Bit-precise run ###
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6344be269056834d180d9b5e1136d4ee678a64c336fe877230b0ca721a1da138
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-fcb8e13
[2021-11-22 20:53:03,795 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2021-11-22 20:53:03,796 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2021-11-22 20:53:03,829 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-11-22 20:53:03,830 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-11-22 20:53:03,832 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-11-22 20:53:03,833 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-11-22 20:53:03,837 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2021-11-22 20:53:03,838 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-11-22 20:53:03,841 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-11-22 20:53:03,842 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2021-11-22 20:53:03,845 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-11-22 20:53:03,845 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-11-22 20:53:03,847 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-11-22 20:53:03,848 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-11-22 20:53:03,850 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-11-22 20:53:03,851 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-11-22 20:53:03,851 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-11-22 20:53:03,853 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-11-22 20:53:03,857 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2021-11-22 20:53:03,858 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-11-22 20:53:03,860 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-11-22 20:53:03,861 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2021-11-22 20:53:03,862 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-11-22 20:53:03,866 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-11-22 20:53:03,866 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-11-22 20:53:03,867 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-11-22 20:53:03,867 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-11-22 20:53:03,867 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-11-22 20:53:03,868 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-11-22 20:53:03,868 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-11-22 20:53:03,869 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-11-22 20:53:03,869 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-11-22 20:53:03,869 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2021-11-22 20:53:03,870 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-11-22 20:53:03,870 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2021-11-22 20:53:03,871 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-11-22 20:53:03,871 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-11-22 20:53:03,871 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2021-11-22 20:53:03,871 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2021-11-22 20:53:03,872 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2021-11-22 20:53:03,874 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf
[2021-11-22 20:53:03,903 INFO  L113        SettingsManager]: Loading preferences was successful
[2021-11-22 20:53:03,903 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2021-11-22 20:53:03,904 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-11-22 20:53:03,904 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-11-22 20:53:03,905 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-11-22 20:53:03,905 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2021-11-22 20:53:03,905 INFO  L138        SettingsManager]:  * Use SBE=true
[2021-11-22 20:53:03,906 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-11-22 20:53:03,906 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2021-11-22 20:53:03,906 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2021-11-22 20:53:03,906 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-11-22 20:53:03,907 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2021-11-22 20:53:03,907 INFO  L138        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2021-11-22 20:53:03,907 INFO  L138        SettingsManager]:  * Use bitvectors instead of ints=true
[2021-11-22 20:53:03,907 INFO  L138        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2021-11-22 20:53:03,907 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2021-11-22 20:53:03,907 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2021-11-22 20:53:03,907 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2021-11-22 20:53:03,907 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-11-22 20:53:03,912 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2021-11-22 20:53:03,913 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2021-11-22 20:53:03,913 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-22 20:53:03,913 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-11-22 20:53:03,913 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2021-11-22 20:53:03,913 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-11-22 20:53:03,913 INFO  L138        SettingsManager]:  * Trace refinement strategy=WOLF
[2021-11-22 20:53:03,913 INFO  L138        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt 
[2021-11-22 20:53:03,913 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2021-11-22 20:53:03,913 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2021-11-22 20:53:03,913 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-11-22 20:53:03,914 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2021-11-22 20:53:03,914 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2021-11-22 20:53:03,914 INFO  L138        SettingsManager]:  * Logic for external solver=AUFBV
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
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6344be269056834d180d9b5e1136d4ee678a64c336fe877230b0ca721a1da138
[2021-11-22 20:53:04,139 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2021-11-22 20:53:04,152 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-11-22 20:53:04,154 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-11-22 20:53:04,155 INFO  L271        PluginConnector]: Initializing CDTParser...
[2021-11-22 20:53:04,155 INFO  L275        PluginConnector]: CDTParser initialized
[2021-11-22 20:53:04,156 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i
[2021-11-22 20:53:04,200 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25bf859f7/162d9004963b42619eab4d844f497875/FLAG5c721aff9
[2021-11-22 20:53:04,866 INFO  L306              CDTParser]: Found 1 translation units.
[2021-11-22 20:53:04,867 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i
[2021-11-22 20:53:04,913 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25bf859f7/162d9004963b42619eab4d844f497875/FLAG5c721aff9
[2021-11-22 20:53:05,433 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25bf859f7/162d9004963b42619eab4d844f497875
[2021-11-22 20:53:05,444 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-11-22 20:53:05,445 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2021-11-22 20:53:05,450 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-11-22 20:53:05,450 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-11-22 20:53:05,453 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2021-11-22 20:53:05,453 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 08:53:05" (1/1) ...
[2021-11-22 20:53:05,454 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b250d50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:53:05, skipping insertion in model container
[2021-11-22 20:53:05,454 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 08:53:05" (1/1) ...
[2021-11-22 20:53:05,459 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2021-11-22 20:53:05,605 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2021-11-22 20:53:06,609 WARN  L230   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-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i[190502,190515]
[2021-11-22 20:53:06,924 WARN  L1533              CHandler]: Possible shadowing of function abort
[2021-11-22 20:53:06,928 WARN  L1533              CHandler]: Possible shadowing of function abort
[2021-11-22 20:53:06,928 WARN  L1533              CHandler]: Possible shadowing of function abort
[2021-11-22 20:53:06,934 WARN  L1533              CHandler]: Possible shadowing of function abort
[2021-11-22 20:53:07,602 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2021-11-22 20:53:07,665 INFO  L200         MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution]
[2021-11-22 20:53:07,754 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2021-11-22 20:53:07,840 WARN  L230   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-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i[190502,190515]
[2021-11-22 20:53:07,885 WARN  L1533              CHandler]: Possible shadowing of function abort
[2021-11-22 20:53:07,887 WARN  L1533              CHandler]: Possible shadowing of function abort
[2021-11-22 20:53:07,887 WARN  L1533              CHandler]: Possible shadowing of function abort
[2021-11-22 20:53:07,889 WARN  L1533              CHandler]: Possible shadowing of function abort
[2021-11-22 20:53:08,068 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2021-11-22 20:53:08,081 INFO  L203         MainTranslator]: Completed pre-run
[2021-11-22 20:53:08,211 WARN  L230   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-linux-3.0/module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i[190502,190515]
[2021-11-22 20:53:08,279 WARN  L1533              CHandler]: Possible shadowing of function abort
[2021-11-22 20:53:08,280 WARN  L1533              CHandler]: Possible shadowing of function abort
[2021-11-22 20:53:08,281 WARN  L1533              CHandler]: Possible shadowing of function abort
[2021-11-22 20:53:08,283 WARN  L1533              CHandler]: Possible shadowing of function abort
[2021-11-22 20:53:08,490 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2021-11-22 20:53:08,624 INFO  L208         MainTranslator]: Completed translation
[2021-11-22 20:53:08,624 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:53:08 WrapperNode
[2021-11-22 20:53:08,624 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-11-22 20:53:08,625 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-11-22 20:53:08,625 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-11-22 20:53:08,626 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2021-11-22 20:53:08,630 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:53:08" (1/1) ...
[2021-11-22 20:53:08,756 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:53:08" (1/1) ...
[2021-11-22 20:53:08,904 INFO  L137                Inliner]: procedures = 367, calls = 6444, calls flagged for inlining = 1000, calls inlined = 240, statements flattened = 6866
[2021-11-22 20:53:08,904 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-11-22 20:53:08,904 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-11-22 20:53:08,905 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2021-11-22 20:53:08,906 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2021-11-22 20:53:08,912 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:53:08" (1/1) ...
[2021-11-22 20:53:08,912 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:53:08" (1/1) ...
[2021-11-22 20:53:08,944 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:53:08" (1/1) ...
[2021-11-22 20:53:08,945 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:53:08" (1/1) ...
[2021-11-22 20:53:09,064 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:53:08" (1/1) ...
[2021-11-22 20:53:09,088 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:53:08" (1/1) ...
[2021-11-22 20:53:09,104 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:53:08" (1/1) ...
[2021-11-22 20:53:09,124 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-11-22 20:53:09,126 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-11-22 20:53:09,126 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2021-11-22 20:53:09,126 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2021-11-22 20:53:09,126 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:53:08" (1/1) ...
[2021-11-22 20:53:09,131 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-22 20:53:09,137 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-11-22 20:53:09,147 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-11-22 20:53:09,153 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-11-22 20:53:09,173 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE1
[2021-11-22 20:53:09,174 INFO  L130     BoogieDeclarations]: Found specification of procedure __xchg_wrong_size
[2021-11-22 20:53:09,174 INFO  L130     BoogieDeclarations]: Found specification of procedure read~intINTTYPE4
[2021-11-22 20:53:09,174 INFO  L130     BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$
[2021-11-22 20:53:09,174 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$
[2021-11-22 20:53:09,174 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~X~C_UINT~TO~C_INT
[2021-11-22 20:53:09,174 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~X~C_UINT~TO~C_INT
[2021-11-22 20:53:09,174 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-11-22 20:53:09,174 INFO  L130     BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2021-11-22 20:53:09,175 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE1
[2021-11-22 20:53:09,175 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2021-11-22 20:53:09,175 INFO  L130     BoogieDeclarations]: Found specification of procedure write~intINTTYPE4
[2021-11-22 20:53:09,175 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~$Pointer$
[2021-11-22 20:53:09,175 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2
[2021-11-22 20:53:09,175 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2021-11-22 20:53:09,175 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4
[2021-11-22 20:53:09,175 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8
[2021-11-22 20:53:09,175 INFO  L130     BoogieDeclarations]: Found specification of procedure if_chars_in_buffer
[2021-11-22 20:53:09,175 INFO  L138     BoogieDeclarations]: Found implementation of procedure if_chars_in_buffer
[2021-11-22 20:53:09,176 INFO  L130     BoogieDeclarations]: Found specification of procedure if_write_room
[2021-11-22 20:53:09,176 INFO  L138     BoogieDeclarations]: Found implementation of procedure if_write_room
[2021-11-22 20:53:09,176 INFO  L130     BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT
[2021-11-22 20:53:09,176 INFO  L138     BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT
[2021-11-22 20:53:09,176 INFO  L130     BoogieDeclarations]: Found specification of procedure single_release
[2021-11-22 20:53:09,176 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4
[2021-11-22 20:53:09,176 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2
[2021-11-22 20:53:09,176 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1
[2021-11-22 20:53:09,176 INFO  L130     BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8
[2021-11-22 20:53:09,176 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2021-11-22 20:53:09,176 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2021-11-22 20:53:09,176 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2021-11-22 20:53:09,176 INFO  L130     BoogieDeclarations]: Found specification of procedure __bad_percpu_size
[2021-11-22 20:53:09,176 INFO  L130     BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8
[2021-11-22 20:53:09,176 INFO  L130     BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2
[2021-11-22 20:53:09,177 INFO  L130     BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4
[2021-11-22 20:53:09,177 INFO  L130     BoogieDeclarations]: Found specification of procedure if_tiocmset
[2021-11-22 20:53:09,177 INFO  L138     BoogieDeclarations]: Found implementation of procedure if_tiocmset
[2021-11-22 20:53:09,177 INFO  L130     BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1
[2021-11-22 20:53:09,177 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-11-22 20:53:09,177 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-11-22 20:53:09,549 INFO  L236             CfgBuilder]: Building ICFG
[2021-11-22 20:53:09,550 INFO  L262             CfgBuilder]: Building CFG for each procedure with an implementation
[2021-11-22 20:53:09,694 WARN  L815   $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2021-11-22 20:53:09,699 WARN  L815   $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2021-11-22 20:53:09,708 WARN  L815   $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2021-11-22 20:53:09,708 WARN  L815   $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2021-11-22 20:53:09,708 WARN  L815   $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2021-11-22 20:53:09,710 WARN  L815   $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2021-11-22 20:53:09,713 WARN  L815   $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2021-11-22 20:53:09,714 WARN  L815   $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2021-11-22 20:53:09,714 WARN  L815   $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2021-11-22 20:55:51,471 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##667: assume !false;
[2021-11-22 20:55:51,471 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##666: assume false;
[2021-11-22 20:55:51,471 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##682: assume !false;
[2021-11-22 20:55:51,471 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##681: assume false;
[2021-11-22 20:55:51,471 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##203: assume false;assume { :begin_inline_get_current } true;havoc get_current_#res#1.base, get_current_#res#1.offset;havoc get_current_~pfo_ret__~0#1.base, get_current_~pfo_ret__~0#1.offset;havoc get_current_~pfo_ret__~0#1.base, get_current_~pfo_ret__~0#1.offset;
[2021-11-22 20:55:51,471 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##299: assume false;assume { :begin_inline_get_current } true;havoc get_current_#res#1.base, get_current_#res#1.offset;havoc get_current_~pfo_ret__~0#1.base, get_current_~pfo_ret__~0#1.offset;havoc get_current_~pfo_ret__~0#1.base, get_current_~pfo_ret__~0#1.offset;
[2021-11-22 20:55:51,472 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##249: assume false;
[2021-11-22 20:55:51,472 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##248: assume !true;
[2021-11-22 20:55:51,472 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##250: assume !false;
[2021-11-22 20:55:51,472 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##254: assume false;
[2021-11-22 20:55:51,472 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##255: assume !false;
[2021-11-22 20:55:51,472 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##268: assume !false;
[2021-11-22 20:55:51,472 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##267: assume false;assume { :begin_inline_get_current } true;havoc get_current_#res#1.base, get_current_#res#1.offset;havoc get_current_~pfo_ret__~0#1.base, get_current_~pfo_ret__~0#1.offset;havoc get_current_~pfo_ret__~0#1.base, get_current_~pfo_ret__~0#1.offset;
[2021-11-22 20:55:51,472 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##272: assume !false;
[2021-11-22 20:55:51,472 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##271: assume false;
[2021-11-22 20:55:51,472 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##276: assume false;
[2021-11-22 20:55:51,472 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##275: assume !true;
[2021-11-22 20:55:51,472 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##277: assume !false;
[2021-11-22 20:55:51,472 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##282: assume !false;
[2021-11-22 20:55:51,472 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##281: assume false;
[2021-11-22 20:55:51,472 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##280: assume !true;
[2021-11-22 20:55:51,472 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##287: assume !false;
[2021-11-22 20:55:51,472 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##286: assume false;
[2021-11-22 20:55:51,472 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##207: assume false;
[2021-11-22 20:55:51,473 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##204: assume !false;
[2021-11-22 20:55:51,473 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##208: assume !false;
[2021-11-22 20:55:51,473 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##213: assume !false;
[2021-11-22 20:55:51,473 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##212: assume false;
[2021-11-22 20:55:51,473 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##211: assume !true;
[2021-11-22 20:55:51,473 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##218: assume !false;
[2021-11-22 20:55:51,473 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##217: assume false;
[2021-11-22 20:55:51,473 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##216: assume !true;
[2021-11-22 20:55:51,473 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##223: assume !false;
[2021-11-22 20:55:51,473 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##222: assume false;
[2021-11-22 20:55:51,473 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##236: assume !false;
[2021-11-22 20:55:51,473 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##235: assume false;assume { :begin_inline_get_current } true;havoc get_current_#res#1.base, get_current_#res#1.offset;havoc get_current_~pfo_ret__~0#1.base, get_current_~pfo_ret__~0#1.offset;havoc get_current_~pfo_ret__~0#1.base, get_current_~pfo_ret__~0#1.offset;
[2021-11-22 20:55:51,473 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##239: assume false;
[2021-11-22 20:55:51,473 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##243: assume !true;
[2021-11-22 20:55:51,473 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##240: assume !false;
[2021-11-22 20:55:51,473 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##245: assume !false;
[2021-11-22 20:55:51,473 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##244: assume false;
[2021-11-22 20:55:51,474 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##300: assume !false;
[2021-11-22 20:55:51,474 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##304: assume !false;
[2021-11-22 20:55:51,474 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##303: assume false;
[2021-11-22 20:55:51,474 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##309: assume !false;
[2021-11-22 20:55:51,474 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##308: assume false;
[2021-11-22 20:55:51,474 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##307: assume !true;
[2021-11-22 20:55:51,474 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##313: assume false;
[2021-11-22 20:55:51,474 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##312: assume !true;
[2021-11-22 20:55:51,474 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##314: assume !false;
[2021-11-22 20:55:51,474 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##319: assume !false;
[2021-11-22 20:55:51,474 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##318: assume false;
[2021-11-22 20:55:51,474 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##702: assume false;
[2021-11-22 20:55:51,474 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##703: assume !false;
[2021-11-22 20:55:51,474 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##334: assume !false;
[2021-11-22 20:55:51,474 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##333: assume false;assume { :begin_inline_get_current } true;havoc get_current_#res#1.base, get_current_#res#1.offset;havoc get_current_~pfo_ret__~0#1.base, get_current_~pfo_ret__~0#1.offset;havoc get_current_~pfo_ret__~0#1.base, get_current_~pfo_ret__~0#1.offset;
[2021-11-22 20:55:51,474 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##338: assume !false;
[2021-11-22 20:55:51,475 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##337: assume false;
[2021-11-22 20:55:51,475 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4657-3: assume !true;
[2021-11-22 20:55:51,475 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4657-3: goto;
[2021-11-22 20:55:51,475 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4657-1: assume !true;
[2021-11-22 20:55:51,476 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4657-1: goto;
[2021-11-22 20:55:51,476 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4657-7: assume !true;
[2021-11-22 20:55:51,476 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4657-7: goto;
[2021-11-22 20:55:51,476 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4657-5: assume !true;
[2021-11-22 20:55:51,476 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4657-5: goto;
[2021-11-22 20:55:51,476 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##342: assume false;
[2021-11-22 20:55:51,476 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##341: assume !true;
[2021-11-22 20:55:51,476 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4657-9: assume !true;
[2021-11-22 20:55:51,476 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4657-9: goto;
[2021-11-22 20:55:51,477 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##346: assume !true;
[2021-11-22 20:55:51,477 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##343: assume !false;
[2021-11-22 20:55:51,477 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##348: assume !false;
[2021-11-22 20:55:51,477 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##347: assume false;
[2021-11-22 20:55:51,477 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##353: assume !false;
[2021-11-22 20:55:51,477 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##352: assume false;
[2021-11-22 20:55:51,477 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##364: assume false;
[2021-11-22 20:55:51,477 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##365: assume !false;
[2021-11-22 20:55:51,477 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4660-1: call __bad_percpu_size();
[2021-11-22 20:55:51,478 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4660-2: call __bad_percpu_size();
[2021-11-22 20:55:51,478 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4660-5: call __bad_percpu_size();
[2021-11-22 20:55:51,478 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4660-6: call __bad_percpu_size();
[2021-11-22 20:55:51,478 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4660-3: call __bad_percpu_size();
[2021-11-22 20:55:51,478 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4660-9: call __bad_percpu_size();
[2021-11-22 20:55:51,478 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4660-10: call __bad_percpu_size();
[2021-11-22 20:55:51,478 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4660-7: call __bad_percpu_size();
[2021-11-22 20:55:51,478 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4660-13: call __bad_percpu_size();
[2021-11-22 20:55:51,479 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4660-14: call __bad_percpu_size();
[2021-11-22 20:55:51,479 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4660-11: call __bad_percpu_size();
[2021-11-22 20:55:51,479 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4660-17: call __bad_percpu_size();
[2021-11-22 20:55:51,479 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4660-18: call __bad_percpu_size();
[2021-11-22 20:55:51,479 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4660-15: call __bad_percpu_size();
[2021-11-22 20:55:51,479 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4660-19: call __bad_percpu_size();
[2021-11-22 20:55:51,479 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4661-3: get_current_#res#1.base, get_current_#res#1.offset := get_current_~pfo_ret__~0#1.base, get_current_~pfo_ret__~0#1.offset;
[2021-11-22 20:55:51,479 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4661-7: get_current_#res#1.base, get_current_#res#1.offset := get_current_~pfo_ret__~0#1.base, get_current_~pfo_ret__~0#1.offset;
[2021-11-22 20:55:51,479 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4661-5: get_current_#res#1.base, get_current_#res#1.offset := get_current_~pfo_ret__~0#1.base, get_current_~pfo_ret__~0#1.offset;
[2021-11-22 20:55:51,480 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4661-11: get_current_#res#1.base, get_current_#res#1.offset := get_current_~pfo_ret__~0#1.base, get_current_~pfo_ret__~0#1.offset;
[2021-11-22 20:55:51,480 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4661-15: get_current_#res#1.base, get_current_#res#1.offset := get_current_~pfo_ret__~0#1.base, get_current_~pfo_ret__~0#1.offset;
[2021-11-22 20:55:51,480 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4661-13: get_current_#res#1.base, get_current_#res#1.offset := get_current_~pfo_ret__~0#1.base, get_current_~pfo_ret__~0#1.offset;
[2021-11-22 20:55:51,480 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4661-19: get_current_#res#1.base, get_current_#res#1.offset := get_current_~pfo_ret__~0#1.base, get_current_~pfo_ret__~0#1.offset;
[2021-11-22 20:55:51,480 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4661-23: get_current_#res#1.base, get_current_#res#1.offset := get_current_~pfo_ret__~0#1.base, get_current_~pfo_ret__~0#1.offset;
[2021-11-22 20:55:51,480 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4661-21: get_current_#res#1.base, get_current_#res#1.offset := get_current_~pfo_ret__~0#1.base, get_current_~pfo_ret__~0#1.offset;
[2021-11-22 20:55:51,480 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4661-27: get_current_#res#1.base, get_current_#res#1.offset := get_current_~pfo_ret__~0#1.base, get_current_~pfo_ret__~0#1.offset;
[2021-11-22 20:55:51,480 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4661-31: get_current_#res#1.base, get_current_#res#1.offset := get_current_~pfo_ret__~0#1.base, get_current_~pfo_ret__~0#1.offset;
[2021-11-22 20:55:51,480 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4661-29: get_current_#res#1.base, get_current_#res#1.offset := get_current_~pfo_ret__~0#1.base, get_current_~pfo_ret__~0#1.offset;
[2021-11-22 20:55:51,481 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4661-35: get_current_#res#1.base, get_current_#res#1.offset := get_current_~pfo_ret__~0#1.base, get_current_~pfo_ret__~0#1.offset;
[2021-11-22 20:55:51,481 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4661-39: get_current_#res#1.base, get_current_#res#1.offset := get_current_~pfo_ret__~0#1.base, get_current_~pfo_ret__~0#1.offset;
[2021-11-22 20:55:51,481 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4661-37: get_current_#res#1.base, get_current_#res#1.offset := get_current_~pfo_ret__~0#1.base, get_current_~pfo_ret__~0#1.offset;
[2021-11-22 20:55:51,481 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##438: assume !false;
[2021-11-22 20:55:51,481 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##437: assume false;
[2021-11-22 20:55:51,481 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4679-1: setflags_#t~ret76#1.base, setflags_#t~ret76#1.offset := get_current_#res#1.base, get_current_#res#1.offset;assume { :end_inline_get_current } true;setflags_~tmp~4#1.base, setflags_~tmp~4#1.offset := setflags_#t~ret76#1.base, setflags_#t~ret76#1.offset;havoc setflags_#t~ret76#1.base, setflags_#t~ret76#1.offset;setflags_~__ptr~0#1.base, setflags_~__ptr~0#1.offset := setflags_~tmp~4#1.base, setflags_~tmp~4#1.offset;
[2021-11-22 20:55:51,481 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4679-5: setflags_#t~ret76#1.base, setflags_#t~ret76#1.offset := get_current_#res#1.base, get_current_#res#1.offset;assume { :end_inline_get_current } true;setflags_~tmp~4#1.base, setflags_~tmp~4#1.offset := setflags_#t~ret76#1.base, setflags_#t~ret76#1.offset;havoc setflags_#t~ret76#1.base, setflags_#t~ret76#1.offset;setflags_~__ptr~0#1.base, setflags_~__ptr~0#1.offset := setflags_~tmp~4#1.base, setflags_~tmp~4#1.offset;
[2021-11-22 20:55:51,481 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4679-2: setflags_#t~ret77#1.base, setflags_#t~ret77#1.offset := get_current_#res#1.base, get_current_#res#1.offset;assume { :end_inline_get_current } true;setflags_~tmp___0~1#1.base, setflags_~tmp___0~1#1.offset := setflags_#t~ret77#1.base, setflags_#t~ret77#1.offset;havoc setflags_#t~ret77#1.base, setflags_#t~ret77#1.offset;setflags_~__ptr___0~0#1.base, setflags_~__ptr___0~0#1.offset := setflags_~tmp___0~1#1.base, setflags_~tmp___0~1#1.offset;
[2021-11-22 20:55:51,482 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4679-3: setflags_#t~ret78#1.base, setflags_#t~ret78#1.offset := get_current_#res#1.base, get_current_#res#1.offset;assume { :end_inline_get_current } true;setflags_~tmp___1~1#1.base, setflags_~tmp___1~1#1.offset := setflags_#t~ret78#1.base, setflags_#t~ret78#1.offset;havoc setflags_#t~ret78#1.base, setflags_#t~ret78#1.offset;setflags_~__ptr___1~0#1.base, setflags_~__ptr___1~0#1.offset := setflags_~tmp___1~1#1.base, setflags_~tmp___1~1#1.offset;
[2021-11-22 20:55:51,482 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4679-9: setflags_#t~ret76#1.base, setflags_#t~ret76#1.offset := get_current_#res#1.base, get_current_#res#1.offset;assume { :end_inline_get_current } true;setflags_~tmp~4#1.base, setflags_~tmp~4#1.offset := setflags_#t~ret76#1.base, setflags_#t~ret76#1.offset;havoc setflags_#t~ret76#1.base, setflags_#t~ret76#1.offset;setflags_~__ptr~0#1.base, setflags_~__ptr~0#1.offset := setflags_~tmp~4#1.base, setflags_~tmp~4#1.offset;
[2021-11-22 20:55:51,482 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4679-6: setflags_#t~ret77#1.base, setflags_#t~ret77#1.offset := get_current_#res#1.base, get_current_#res#1.offset;assume { :end_inline_get_current } true;setflags_~tmp___0~1#1.base, setflags_~tmp___0~1#1.offset := setflags_#t~ret77#1.base, setflags_#t~ret77#1.offset;havoc setflags_#t~ret77#1.base, setflags_#t~ret77#1.offset;setflags_~__ptr___0~0#1.base, setflags_~__ptr___0~0#1.offset := setflags_~tmp___0~1#1.base, setflags_~tmp___0~1#1.offset;
[2021-11-22 20:55:51,482 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4679-7: setflags_#t~ret78#1.base, setflags_#t~ret78#1.offset := get_current_#res#1.base, get_current_#res#1.offset;assume { :end_inline_get_current } true;setflags_~tmp___1~1#1.base, setflags_~tmp___1~1#1.offset := setflags_#t~ret78#1.base, setflags_#t~ret78#1.offset;havoc setflags_#t~ret78#1.base, setflags_#t~ret78#1.offset;setflags_~__ptr___1~0#1.base, setflags_~__ptr___1~0#1.offset := setflags_~tmp___1~1#1.base, setflags_~tmp___1~1#1.offset;
[2021-11-22 20:55:51,482 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4679-13: setflags_#t~ret76#1.base, setflags_#t~ret76#1.offset := get_current_#res#1.base, get_current_#res#1.offset;assume { :end_inline_get_current } true;setflags_~tmp~4#1.base, setflags_~tmp~4#1.offset := setflags_#t~ret76#1.base, setflags_#t~ret76#1.offset;havoc setflags_#t~ret76#1.base, setflags_#t~ret76#1.offset;setflags_~__ptr~0#1.base, setflags_~__ptr~0#1.offset := setflags_~tmp~4#1.base, setflags_~tmp~4#1.offset;
[2021-11-22 20:55:51,482 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4679-10: setflags_#t~ret77#1.base, setflags_#t~ret77#1.offset := get_current_#res#1.base, get_current_#res#1.offset;assume { :end_inline_get_current } true;setflags_~tmp___0~1#1.base, setflags_~tmp___0~1#1.offset := setflags_#t~ret77#1.base, setflags_#t~ret77#1.offset;havoc setflags_#t~ret77#1.base, setflags_#t~ret77#1.offset;setflags_~__ptr___0~0#1.base, setflags_~__ptr___0~0#1.offset := setflags_~tmp___0~1#1.base, setflags_~tmp___0~1#1.offset;
[2021-11-22 20:55:51,482 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4679-11: setflags_#t~ret78#1.base, setflags_#t~ret78#1.offset := get_current_#res#1.base, get_current_#res#1.offset;assume { :end_inline_get_current } true;setflags_~tmp___1~1#1.base, setflags_~tmp___1~1#1.offset := setflags_#t~ret78#1.base, setflags_#t~ret78#1.offset;havoc setflags_#t~ret78#1.base, setflags_#t~ret78#1.offset;setflags_~__ptr___1~0#1.base, setflags_~__ptr___1~0#1.offset := setflags_~tmp___1~1#1.base, setflags_~tmp___1~1#1.offset;
[2021-11-22 20:55:51,482 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4679-17: setflags_#t~ret76#1.base, setflags_#t~ret76#1.offset := get_current_#res#1.base, get_current_#res#1.offset;assume { :end_inline_get_current } true;setflags_~tmp~4#1.base, setflags_~tmp~4#1.offset := setflags_#t~ret76#1.base, setflags_#t~ret76#1.offset;havoc setflags_#t~ret76#1.base, setflags_#t~ret76#1.offset;setflags_~__ptr~0#1.base, setflags_~__ptr~0#1.offset := setflags_~tmp~4#1.base, setflags_~tmp~4#1.offset;
[2021-11-22 20:55:51,483 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4679-14: setflags_#t~ret77#1.base, setflags_#t~ret77#1.offset := get_current_#res#1.base, get_current_#res#1.offset;assume { :end_inline_get_current } true;setflags_~tmp___0~1#1.base, setflags_~tmp___0~1#1.offset := setflags_#t~ret77#1.base, setflags_#t~ret77#1.offset;havoc setflags_#t~ret77#1.base, setflags_#t~ret77#1.offset;setflags_~__ptr___0~0#1.base, setflags_~__ptr___0~0#1.offset := setflags_~tmp___0~1#1.base, setflags_~tmp___0~1#1.offset;
[2021-11-22 20:55:51,483 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4679-15: setflags_#t~ret78#1.base, setflags_#t~ret78#1.offset := get_current_#res#1.base, get_current_#res#1.offset;assume { :end_inline_get_current } true;setflags_~tmp___1~1#1.base, setflags_~tmp___1~1#1.offset := setflags_#t~ret78#1.base, setflags_#t~ret78#1.offset;havoc setflags_#t~ret78#1.base, setflags_#t~ret78#1.offset;setflags_~__ptr___1~0#1.base, setflags_~__ptr___1~0#1.offset := setflags_~tmp___1~1#1.base, setflags_~tmp___1~1#1.offset;
[2021-11-22 20:55:51,483 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4679-18: setflags_#t~ret77#1.base, setflags_#t~ret77#1.offset := get_current_#res#1.base, get_current_#res#1.offset;assume { :end_inline_get_current } true;setflags_~tmp___0~1#1.base, setflags_~tmp___0~1#1.offset := setflags_#t~ret77#1.base, setflags_#t~ret77#1.offset;havoc setflags_#t~ret77#1.base, setflags_#t~ret77#1.offset;setflags_~__ptr___0~0#1.base, setflags_~__ptr___0~0#1.offset := setflags_~tmp___0~1#1.base, setflags_~tmp___0~1#1.offset;
[2021-11-22 20:55:51,483 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint L4679-19: setflags_#t~ret78#1.base, setflags_#t~ret78#1.offset := get_current_#res#1.base, get_current_#res#1.offset;assume { :end_inline_get_current } true;setflags_~tmp___1~1#1.base, setflags_~tmp___1~1#1.offset := setflags_#t~ret78#1.base, setflags_#t~ret78#1.offset;havoc setflags_#t~ret78#1.base, setflags_#t~ret78#1.offset;setflags_~__ptr___1~0#1.base, setflags_~__ptr___1~0#1.offset := setflags_~tmp___1~1#1.base, setflags_~tmp___1~1#1.offset;
[2021-11-22 20:55:51,483 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##452: assume false;
[2021-11-22 20:55:51,483 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##453: assume !false;
[2021-11-22 20:55:51,483 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##474: assume !false;
[2021-11-22 20:55:51,483 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##473: assume false;
[2021-11-22 20:55:51,484 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##540: assume false;
[2021-11-22 20:55:51,484 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##541: assume !false;call ULTIMATE.dealloc(if_version_~#version~0#1.base, if_version_~#version~0#1.offset);havoc if_version_~#version~0#1.base, if_version_~#version~0#1.offset;call ULTIMATE.dealloc(if_version_~#compat~0#1.base, if_version_~#compat~0#1.offset);havoc if_version_~#compat~0#1.base, if_version_~#compat~0#1.offset;call ULTIMATE.dealloc(if_version_~#__wait~4#1.base, if_version_~#__wait~4#1.offset);havoc if_version_~#__wait~4#1.base, if_version_~#__wait~4#1.offset;
[2021-11-22 20:55:51,484 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##179: assume false;
[2021-11-22 20:55:51,484 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##180: assume !false;
[2021-11-22 20:55:51,484 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##184: assume false;
[2021-11-22 20:55:51,484 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##185: assume !false;
[2021-11-22 20:55:51,484 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##129: assume false;
[2021-11-22 20:55:51,484 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##32: assume !false;
[2021-11-22 20:55:51,485 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##31: assume false;
[2021-11-22 20:55:51,485 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##130: assume !false;
[2021-11-22 20:55:51,485 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##168: assume !false;
[2021-11-22 20:55:51,485 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##167: assume false;
[2021-11-22 20:55:51,485 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##591: assume !false;
[2021-11-22 20:55:51,485 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##590: assume false;
[2021-11-22 20:55:51,485 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##126: assume !false;
[2021-11-22 20:55:51,485 INFO  L768   $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##125: assume false;
[2021-11-22 20:55:51,593 INFO  L277             CfgBuilder]: Performing block encoding
[2021-11-22 20:55:51,602 INFO  L296             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-11-22 20:55:51,602 INFO  L301             CfgBuilder]: Removed 31 assume(true) statements.
[2021-11-22 20:55:51,604 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 08:55:51 BoogieIcfgContainer
[2021-11-22 20:55:51,604 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-11-22 20:55:51,606 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-11-22 20:55:51,606 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2021-11-22 20:55:51,608 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2021-11-22 20:55:51,608 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 08:53:05" (1/3) ...
[2021-11-22 20:55:51,608 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5291c01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 08:55:51, skipping insertion in model container
[2021-11-22 20:55:51,608 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:53:08" (2/3) ...
[2021-11-22 20:55:51,609 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5291c01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 08:55:51, skipping insertion in model container
[2021-11-22 20:55:51,609 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 08:55:51" (3/3) ...
[2021-11-22 20:55:51,610 INFO  L111   eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-isdn-gigaset-gigaset.ko.cil.out.i
[2021-11-22 20:55:51,613 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-11-22 20:55:51,613 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations.
[2021-11-22 20:55:51,647 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-11-22 20:55:51,651 INFO  L339      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR
[2021-11-22 20:55:51,651 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 5 error locations.
[2021-11-22 20:55:51,670 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 786 states, 757 states have (on average 1.4081902245706737) internal successors, (1066), 762 states have internal predecessors, (1066), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18)
[2021-11-22 20:55:51,673 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2021-11-22 20:55:51,673 INFO  L506         BasicCegarLoop]: Found error trace
[2021-11-22 20:55:51,673 INFO  L514         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-22 20:55:51,674 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2021-11-22 20:55:51,677 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-11-22 20:55:51,677 INFO  L85        PathProgramCache]: Analyzing trace with hash 1994102646, now seen corresponding path program 1 times
[2021-11-22 20:55:51,695 INFO  L121   FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-22 20:55:51,695 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2071638099]
[2021-11-22 20:55:51,695 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-22 20:55:51,696 INFO  L168          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-22 20:55:51,696 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2021-11-22 20:55:51,698 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-22 20:55:51,773 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2021-11-22 20:55:59,882 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-22 20:56:00,712 INFO  L263         TraceCheckSpWp]: Trace formula consists of 7600 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-11-22 20:56:00,718 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-11-22 20:56:00,857 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-22 20:56:00,857 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2021-11-22 20:56:00,963 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-22 20:56:00,964 INFO  L139   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-22 20:56:00,965 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2071638099]
[2021-11-22 20:56:00,965 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleMathsat [2071638099] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-22 20:56:00,965 INFO  L186   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-22 20:56:00,965 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2021-11-22 20:56:00,966 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493132925]
[2021-11-22 20:56:00,967 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-22 20:56:00,969 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-11-22 20:56:00,969 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-22 20:56:01,001 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-11-22 20:56:01,002 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-11-22 20:56:01,005 INFO  L87              Difference]: Start difference. First operand  has 786 states, 757 states have (on average 1.4081902245706737) internal successors, (1066), 762 states have internal predecessors, (1066), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand  has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-22 20:56:01,239 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-22 20:56:01,255 INFO  L93              Difference]: Finished difference Result 2296 states and 3239 transitions.
[2021-11-22 20:56:01,257 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2021-11-22 20:56:01,258 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13
[2021-11-22 20:56:01,258 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-22 20:56:01,281 INFO  L225             Difference]: With dead ends: 2296
[2021-11-22 20:56:01,281 INFO  L226             Difference]: Without dead ends: 1509
[2021-11-22 20:56:01,288 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-11-22 20:56:01,293 INFO  L933         BasicCegarLoop]: 1069 mSDtfsCounter, 1035 mSDsluCounter, 1024 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1035 SdHoareTripleChecker+Valid, 2093 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2021-11-22 20:56:01,295 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [1035 Valid, 2093 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2021-11-22 20:56:01,309 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1509 states.
[2021-11-22 20:56:01,393 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1509 to 1501.
[2021-11-22 20:56:01,396 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1501 states, 1450 states have (on average 1.383448275862069) internal successors, (2006), 1454 states have internal predecessors, (2006), 36 states have call successors, (36), 10 states have call predecessors, (36), 10 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36)
[2021-11-22 20:56:01,403 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1501 states to 1501 states and 2078 transitions.
[2021-11-22 20:56:01,404 INFO  L78                 Accepts]: Start accepts. Automaton has 1501 states and 2078 transitions. Word has length 13
[2021-11-22 20:56:01,404 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-11-22 20:56:01,407 INFO  L470      AbstractCegarLoop]: Abstraction has 1501 states and 2078 transitions.
[2021-11-22 20:56:01,407 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-22 20:56:01,407 INFO  L276                IsEmpty]: Start isEmpty. Operand 1501 states and 2078 transitions.
[2021-11-22 20:56:01,410 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2021-11-22 20:56:01,410 INFO  L506         BasicCegarLoop]: Found error trace
[2021-11-22 20:56:01,410 INFO  L514         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]
[2021-11-22 20:56:01,580 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2021-11-22 20:56:01,623 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3
[2021-11-22 20:56:01,623 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2021-11-22 20:56:01,624 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-11-22 20:56:01,624 INFO  L85        PathProgramCache]: Analyzing trace with hash 1732618582, now seen corresponding path program 1 times
[2021-11-22 20:56:01,636 INFO  L121   FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-22 20:56:01,637 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [463182728]
[2021-11-22 20:56:01,637 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-22 20:56:01,637 INFO  L168          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-22 20:56:01,637 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2021-11-22 20:56:01,652 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-22 20:56:01,684 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2021-11-22 20:56:09,875 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-22 20:56:10,711 INFO  L263         TraceCheckSpWp]: Trace formula consists of 7640 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-11-22 20:56:10,715 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-11-22 20:56:10,858 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-22 20:56:10,858 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2021-11-22 20:56:11,002 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-22 20:56:11,002 INFO  L139   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-22 20:56:11,002 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [463182728]
[2021-11-22 20:56:11,002 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleMathsat [463182728] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-22 20:56:11,002 INFO  L186   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-22 20:56:11,003 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4
[2021-11-22 20:56:11,003 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49866503]
[2021-11-22 20:56:11,003 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-22 20:56:11,004 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-11-22 20:56:11,004 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-22 20:56:11,004 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-11-22 20:56:11,004 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2021-11-22 20:56:11,004 INFO  L87              Difference]: Start difference. First operand 1501 states and 2078 transitions. Second operand  has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-22 20:56:11,288 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-22 20:56:11,288 INFO  L93              Difference]: Finished difference Result 5409 states and 7527 transitions.
[2021-11-22 20:56:11,289 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2021-11-22 20:56:11,289 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23
[2021-11-22 20:56:11,289 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-22 20:56:11,302 INFO  L225             Difference]: With dead ends: 5409
[2021-11-22 20:56:11,303 INFO  L226             Difference]: Without dead ends: 3920
[2021-11-22 20:56:11,306 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2021-11-22 20:56:11,307 INFO  L933         BasicCegarLoop]: 1109 mSDtfsCounter, 1701 mSDsluCounter, 2741 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1725 SdHoareTripleChecker+Valid, 3850 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2021-11-22 20:56:11,307 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [1725 Valid, 3850 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2021-11-22 20:56:11,310 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3920 states.
[2021-11-22 20:56:11,431 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3908.
[2021-11-22 20:56:11,440 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3908 states, 3809 states have (on average 1.3859280651089525) internal successors, (5279), 3813 states have internal predecessors, (5279), 84 states have call successors, (84), 10 states have call predecessors, (84), 10 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84)
[2021-11-22 20:56:11,453 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3908 states to 3908 states and 5447 transitions.
[2021-11-22 20:56:11,454 INFO  L78                 Accepts]: Start accepts. Automaton has 3908 states and 5447 transitions. Word has length 23
[2021-11-22 20:56:11,454 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-11-22 20:56:11,454 INFO  L470      AbstractCegarLoop]: Abstraction has 3908 states and 5447 transitions.
[2021-11-22 20:56:11,454 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-22 20:56:11,455 INFO  L276                IsEmpty]: Start isEmpty. Operand 3908 states and 5447 transitions.
[2021-11-22 20:56:11,459 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2021-11-22 20:56:11,459 INFO  L506         BasicCegarLoop]: Found error trace
[2021-11-22 20:56:11,459 INFO  L514         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]
[2021-11-22 20:56:11,644 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2021-11-22 20:56:11,676 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3
[2021-11-22 20:56:11,676 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2021-11-22 20:56:11,679 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-11-22 20:56:11,679 INFO  L85        PathProgramCache]: Analyzing trace with hash 1513531403, now seen corresponding path program 1 times
[2021-11-22 20:56:11,689 INFO  L121   FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-22 20:56:11,689 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [990379182]
[2021-11-22 20:56:11,689 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-22 20:56:11,689 INFO  L168          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-22 20:56:11,690 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2021-11-22 20:56:11,704 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-22 20:56:11,726 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2021-11-22 20:56:19,948 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-22 20:56:20,794 INFO  L263         TraceCheckSpWp]: Trace formula consists of 7670 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-11-22 20:56:20,798 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-11-22 20:56:21,041 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-22 20:56:21,042 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2021-11-22 20:56:21,271 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-22 20:56:21,271 INFO  L139   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-22 20:56:21,271 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [990379182]
[2021-11-22 20:56:21,271 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleMathsat [990379182] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-22 20:56:21,271 INFO  L186   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-22 20:56:21,271 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4
[2021-11-22 20:56:21,271 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809023919]
[2021-11-22 20:56:21,272 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-22 20:56:21,272 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-11-22 20:56:21,272 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-22 20:56:21,272 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-11-22 20:56:21,272 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2021-11-22 20:56:21,272 INFO  L87              Difference]: Start difference. First operand 3908 states and 5447 transitions. Second operand  has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-22 20:56:23,675 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2021-11-22 20:56:24,913 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-22 20:56:24,913 INFO  L93              Difference]: Finished difference Result 15200 states and 21210 transitions.
[2021-11-22 20:56:24,914 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2021-11-22 20:56:24,914 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26
[2021-11-22 20:56:24,914 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-22 20:56:24,952 INFO  L225             Difference]: With dead ends: 15200
[2021-11-22 20:56:24,954 INFO  L226             Difference]: Without dead ends: 11305
[2021-11-22 20:56:24,966 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2021-11-22 20:56:24,968 INFO  L933         BasicCegarLoop]: 1598 mSDtfsCounter, 2693 mSDsluCounter, 4463 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 21 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2705 SdHoareTripleChecker+Valid, 6061 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time
[2021-11-22 20:56:24,970 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [2705 Valid, 6061 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 229 Invalid, 1 Unknown, 0 Unchecked, 3.3s Time]
[2021-11-22 20:56:24,981 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11305 states.
[2021-11-22 20:56:25,208 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11305 to 7438.
[2021-11-22 20:56:25,221 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7438 states, 7245 states have (on average 1.3853692201518288) internal successors, (10037), 7249 states have internal predecessors, (10037), 168 states have call successors, (168), 20 states have call predecessors, (168), 20 states have return successors, (168), 168 states have call predecessors, (168), 168 states have call successors, (168)
[2021-11-22 20:56:25,245 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7438 states to 7438 states and 10373 transitions.
[2021-11-22 20:56:25,246 INFO  L78                 Accepts]: Start accepts. Automaton has 7438 states and 10373 transitions. Word has length 26
[2021-11-22 20:56:25,248 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-11-22 20:56:25,248 INFO  L470      AbstractCegarLoop]: Abstraction has 7438 states and 10373 transitions.
[2021-11-22 20:56:25,250 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-22 20:56:25,251 INFO  L276                IsEmpty]: Start isEmpty. Operand 7438 states and 10373 transitions.
[2021-11-22 20:56:25,251 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2021-11-22 20:56:25,251 INFO  L506         BasicCegarLoop]: Found error trace
[2021-11-22 20:56:25,252 INFO  L514         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]
[2021-11-22 20:56:25,420 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0
[2021-11-22 20:56:25,471 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3
[2021-11-22 20:56:25,471 INFO  L402      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2021-11-22 20:56:25,472 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-11-22 20:56:25,472 INFO  L85        PathProgramCache]: Analyzing trace with hash 502414153, now seen corresponding path program 1 times
[2021-11-22 20:56:25,483 INFO  L121   FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-22 20:56:25,484 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [967950369]
[2021-11-22 20:56:25,484 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-22 20:56:25,484 INFO  L168          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-22 20:56:25,484 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2021-11-22 20:56:25,485 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-22 20:56:25,524 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2021-11-22 20:56:34,191 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-22 20:56:35,010 INFO  L263         TraceCheckSpWp]: Trace formula consists of 7670 conjuncts, 5 conjunts are in the unsatisfiable core
[2021-11-22 20:56:35,014 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-11-22 20:56:35,199 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-22 20:56:35,200 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2021-11-22 20:56:35,356 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-22 20:56:35,356 INFO  L139   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-22 20:56:35,356 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [967950369]
[2021-11-22 20:56:35,357 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleMathsat [967950369] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-22 20:56:35,357 INFO  L186   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-22 20:56:35,357 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6
[2021-11-22 20:56:35,357 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360430429]
[2021-11-22 20:56:35,357 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-22 20:56:35,357 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-11-22 20:56:35,357 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-22 20:56:35,357 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-11-22 20:56:35,357 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2021-11-22 20:56:35,358 INFO  L87              Difference]: Start difference. First operand 7438 states and 10373 transitions. Second operand  has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-22 20:56:36,969 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-22 20:56:36,970 INFO  L93              Difference]: Finished difference Result 26847 states and 37597 transitions.
[2021-11-22 20:56:36,971 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2021-11-22 20:56:36,971 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26
[2021-11-22 20:56:36,971 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-22 20:56:37,027 INFO  L225             Difference]: With dead ends: 26847
[2021-11-22 20:56:37,028 INFO  L226             Difference]: Without dead ends: 19422
[2021-11-22 20:56:37,048 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2021-11-22 20:56:37,050 INFO  L933         BasicCegarLoop]: 1802 mSDtfsCounter, 2229 mSDsluCounter, 6326 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2241 SdHoareTripleChecker+Valid, 8128 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2021-11-22 20:56:37,051 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [2241 Valid, 8128 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2021-11-22 20:56:37,066 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 19422 states.
[2021-11-22 20:56:37,510 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 19422 to 7494.
[2021-11-22 20:56:37,520 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7494 states, 7301 states have (on average 1.3824133680317765) internal successors, (10093), 7305 states have internal predecessors, (10093), 168 states have call successors, (168), 20 states have call predecessors, (168), 20 states have return successors, (168), 168 states have call predecessors, (168), 168 states have call successors, (168)
[2021-11-22 20:56:37,533 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7494 states to 7494 states and 10429 transitions.
[2021-11-22 20:56:37,534 INFO  L78                 Accepts]: Start accepts. Automaton has 7494 states and 10429 transitions. Word has length 26
[2021-11-22 20:56:37,534 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-11-22 20:56:37,535 INFO  L470      AbstractCegarLoop]: Abstraction has 7494 states and 10429 transitions.
[2021-11-22 20:56:37,535 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-22 20:56:37,535 INFO  L276                IsEmpty]: Start isEmpty. Operand 7494 states and 10429 transitions.
[2021-11-22 20:56:37,536 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 35
[2021-11-22 20:56:37,536 INFO  L506         BasicCegarLoop]: Found error trace
[2021-11-22 20:56:37,536 INFO  L514         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]
[2021-11-22 20:56:37,708 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0
[2021-11-22 20:56:37,763 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3
[2021-11-22 20:56:37,763 INFO  L402      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2021-11-22 20:56:37,764 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-11-22 20:56:37,764 INFO  L85        PathProgramCache]: Analyzing trace with hash -1283868903, now seen corresponding path program 1 times
[2021-11-22 20:56:37,772 INFO  L121   FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-22 20:56:37,773 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1412503164]
[2021-11-22 20:56:37,773 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-22 20:56:37,773 INFO  L168          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-22 20:56:37,773 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2021-11-22 20:56:37,788 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-22 20:56:37,788 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process
[2021-11-22 20:56:47,285 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-22 20:56:48,101 INFO  L263         TraceCheckSpWp]: Trace formula consists of 7718 conjuncts, 11 conjunts are in the unsatisfiable core
[2021-11-22 20:56:48,105 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-11-22 20:56:48,522 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-22 20:56:48,522 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2021-11-22 20:56:48,957 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-22 20:56:48,957 INFO  L139   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-22 20:56:48,957 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1412503164]
[2021-11-22 20:56:48,957 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1412503164] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-22 20:56:48,958 INFO  L186   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-22 20:56:48,958 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10
[2021-11-22 20:56:48,958 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876134625]
[2021-11-22 20:56:48,958 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-22 20:56:48,958 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2021-11-22 20:56:48,958 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-22 20:56:48,958 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2021-11-22 20:56:48,958 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2021-11-22 20:56:48,958 INFO  L87              Difference]: Start difference. First operand 7494 states and 10429 transitions. Second operand  has 10 states, 10 states have (on average 4.4) internal successors, (44), 10 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-22 20:56:53,896 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-22 20:56:53,897 INFO  L93              Difference]: Finished difference Result 45887 states and 64247 transitions.
[2021-11-22 20:56:53,897 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. 
[2021-11-22 20:56:53,898 INFO  L78                 Accepts]: Start accepts. Automaton has  has 10 states, 10 states have (on average 4.4) internal successors, (44), 10 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34
[2021-11-22 20:56:53,898 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-22 20:56:53,987 INFO  L225             Difference]: With dead ends: 45887
[2021-11-22 20:56:53,988 INFO  L226             Difference]: Without dead ends: 38406
[2021-11-22 20:56:54,017 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342
[2021-11-22 20:56:54,017 INFO  L933         BasicCegarLoop]: 2616 mSDtfsCounter, 7899 mSDsluCounter, 14259 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 262 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7911 SdHoareTripleChecker+Valid, 16875 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 262 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time
[2021-11-22 20:56:54,018 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [7911 Valid, 16875 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [262 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time]
[2021-11-22 20:56:54,058 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 38406 states.
[2021-11-22 20:56:54,699 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 38406 to 7718.
[2021-11-22 20:56:54,719 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7718 states, 7525 states have (on average 1.371029900332226) internal successors, (10317), 7529 states have internal predecessors, (10317), 168 states have call successors, (168), 20 states have call predecessors, (168), 20 states have return successors, (168), 168 states have call predecessors, (168), 168 states have call successors, (168)
[2021-11-22 20:56:54,731 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7718 states to 7718 states and 10653 transitions.
[2021-11-22 20:56:54,732 INFO  L78                 Accepts]: Start accepts. Automaton has 7718 states and 10653 transitions. Word has length 34
[2021-11-22 20:56:54,732 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-11-22 20:56:54,732 INFO  L470      AbstractCegarLoop]: Abstraction has 7718 states and 10653 transitions.
[2021-11-22 20:56:54,733 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 10 states have (on average 4.4) internal successors, (44), 10 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-22 20:56:54,733 INFO  L276                IsEmpty]: Start isEmpty. Operand 7718 states and 10653 transitions.
[2021-11-22 20:56:54,736 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 37
[2021-11-22 20:56:54,737 INFO  L506         BasicCegarLoop]: Found error trace
[2021-11-22 20:56:54,737 INFO  L514         BasicCegarLoop]: trace histogram [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]
[2021-11-22 20:56:54,912 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0
[2021-11-22 20:56:54,955 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3
[2021-11-22 20:56:54,955 INFO  L402      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2021-11-22 20:56:54,956 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-11-22 20:56:54,956 INFO  L85        PathProgramCache]: Analyzing trace with hash 1942389033, now seen corresponding path program 1 times
[2021-11-22 20:56:54,962 INFO  L121   FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-22 20:56:54,963 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [419055997]
[2021-11-22 20:56:54,965 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-22 20:56:54,965 INFO  L168          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-22 20:56:54,965 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2021-11-22 20:56:54,970 INFO  L229       MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-22 20:56:54,970 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process
[2021-11-22 20:57:03,037 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-22 20:57:03,849 INFO  L263         TraceCheckSpWp]: Trace formula consists of 7682 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-11-22 20:57:03,852 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-11-22 20:57:04,022 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-22 20:57:04,022 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2021-11-22 20:57:04,196 INFO  L134       CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-22 20:57:04,196 INFO  L139   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-22 20:57:04,196 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [419055997]
[2021-11-22 20:57:04,196 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleMathsat [419055997] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-22 20:57:04,196 INFO  L186   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-22 20:57:04,196 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6
[2021-11-22 20:57:04,196 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153322915]
[2021-11-22 20:57:04,196 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-22 20:57:04,197 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-11-22 20:57:04,197 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-22 20:57:04,197 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-11-22 20:57:04,197 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2021-11-22 20:57:04,197 INFO  L87              Difference]: Start difference. First operand 7718 states and 10653 transitions. Second operand  has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-22 20:57:05,407 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-22 20:57:05,408 INFO  L93              Difference]: Finished difference Result 27307 states and 38012 transitions.
[2021-11-22 20:57:05,408 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2021-11-22 20:57:05,408 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36
[2021-11-22 20:57:05,409 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-22 20:57:05,502 INFO  L225             Difference]: With dead ends: 27307
[2021-11-22 20:57:05,502 INFO  L226             Difference]: Without dead ends: 19574
[2021-11-22 20:57:05,536 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2021-11-22 20:57:05,537 INFO  L933         BasicCegarLoop]: 1809 mSDtfsCounter, 2186 mSDsluCounter, 3597 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2210 SdHoareTripleChecker+Valid, 5406 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2021-11-22 20:57:05,538 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [2210 Valid, 5406 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2021-11-22 20:57:05,557 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 19574 states.
[2021-11-22 20:57:05,986 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 19574 to 7693.
[2021-11-22 20:57:05,995 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7693 states, 7500 states have (on average 1.3704) internal successors, (10278), 7504 states have internal predecessors, (10278), 168 states have call successors, (168), 20 states have call predecessors, (168), 20 states have return successors, (168), 168 states have call predecessors, (168), 168 states have call successors, (168)
[2021-11-22 20:57:06,006 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7693 states to 7693 states and 10614 transitions.
[2021-11-22 20:57:06,007 INFO  L78                 Accepts]: Start accepts. Automaton has 7693 states and 10614 transitions. Word has length 36
[2021-11-22 20:57:06,009 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-11-22 20:57:06,009 INFO  L470      AbstractCegarLoop]: Abstraction has 7693 states and 10614 transitions.
[2021-11-22 20:57:06,009 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-22 20:57:06,009 INFO  L276                IsEmpty]: Start isEmpty. Operand 7693 states and 10614 transitions.
[2021-11-22 20:57:06,010 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 45
[2021-11-22 20:57:06,010 INFO  L506         BasicCegarLoop]: Found error trace
[2021-11-22 20:57:06,010 INFO  L514         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]
[2021-11-22 20:57:06,187 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0
[2021-11-22 20:57:06,223 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3
[2021-11-22 20:57:06,223 INFO  L402      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2021-11-22 20:57:06,224 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-11-22 20:57:06,224 INFO  L85        PathProgramCache]: Analyzing trace with hash 1949239820, now seen corresponding path program 1 times
[2021-11-22 20:57:06,232 INFO  L121   FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-22 20:57:06,232 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [788810290]
[2021-11-22 20:57:06,233 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-22 20:57:06,233 INFO  L168          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-22 20:57:06,233 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2021-11-22 20:57:06,246 INFO  L229       MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-22 20:57:06,248 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process
[2021-11-22 20:57:15,070 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-22 20:57:15,885 INFO  L263         TraceCheckSpWp]: Trace formula consists of 7750 conjuncts, 5 conjunts are in the unsatisfiable core
[2021-11-22 20:57:15,887 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-11-22 20:57:16,052 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-22 20:57:16,053 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2021-11-22 20:57:16,128 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-22 20:57:16,128 INFO  L139   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-22 20:57:16,128 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [788810290]
[2021-11-22 20:57:16,128 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleMathsat [788810290] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-22 20:57:16,128 INFO  L186   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-22 20:57:16,128 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5
[2021-11-22 20:57:16,129 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876667447]
[2021-11-22 20:57:16,129 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-22 20:57:16,129 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-11-22 20:57:16,129 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-22 20:57:16,129 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-11-22 20:57:16,129 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-11-22 20:57:16,130 INFO  L87              Difference]: Start difference. First operand 7693 states and 10614 transitions. Second operand  has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-22 20:57:17,404 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-22 20:57:17,404 INFO  L93              Difference]: Finished difference Result 24454 states and 33950 transitions.
[2021-11-22 20:57:17,405 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2021-11-22 20:57:17,405 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44
[2021-11-22 20:57:17,405 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-22 20:57:17,431 INFO  L225             Difference]: With dead ends: 24454
[2021-11-22 20:57:17,432 INFO  L226             Difference]: Without dead ends: 16768
[2021-11-22 20:57:17,442 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2021-11-22 20:57:17,443 INFO  L933         BasicCegarLoop]: 1939 mSDtfsCounter, 4521 mSDsluCounter, 5473 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4533 SdHoareTripleChecker+Valid, 7412 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2021-11-22 20:57:17,443 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [4533 Valid, 7412 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2021-11-22 20:57:17,453 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 16768 states.
[2021-11-22 20:57:17,759 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 16768 to 5249.
[2021-11-22 20:57:17,766 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5249 states, 5104 states have (on average 1.3671630094043887) internal successors, (6978), 5108 states have internal predecessors, (6978), 120 states have call successors, (120), 20 states have call predecessors, (120), 20 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120)
[2021-11-22 20:57:17,773 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5249 states to 5249 states and 7218 transitions.
[2021-11-22 20:57:17,774 INFO  L78                 Accepts]: Start accepts. Automaton has 5249 states and 7218 transitions. Word has length 44
[2021-11-22 20:57:17,774 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-11-22 20:57:17,774 INFO  L470      AbstractCegarLoop]: Abstraction has 5249 states and 7218 transitions.
[2021-11-22 20:57:17,774 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-22 20:57:17,775 INFO  L276                IsEmpty]: Start isEmpty. Operand 5249 states and 7218 transitions.
[2021-11-22 20:57:17,776 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 47
[2021-11-22 20:57:17,776 INFO  L506         BasicCegarLoop]: Found error trace
[2021-11-22 20:57:17,776 INFO  L514         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]
[2021-11-22 20:57:17,944 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0
[2021-11-22 20:57:17,991 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3
[2021-11-22 20:57:17,991 INFO  L402      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2021-11-22 20:57:17,992 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-11-22 20:57:17,992 INFO  L85        PathProgramCache]: Analyzing trace with hash 1568585894, now seen corresponding path program 1 times
[2021-11-22 20:57:17,998 INFO  L121   FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-22 20:57:17,998 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [357442807]
[2021-11-22 20:57:17,999 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-22 20:57:17,999 INFO  L168          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-22 20:57:17,999 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2021-11-22 20:57:18,003 INFO  L229       MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-22 20:57:18,005 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process
[2021-11-22 20:57:26,765 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-22 20:57:27,594 INFO  L263         TraceCheckSpWp]: Trace formula consists of 7753 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-11-22 20:57:27,597 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-11-22 20:57:27,997 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-22 20:57:27,997 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2021-11-22 20:57:28,456 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-22 20:57:28,457 INFO  L139   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-22 20:57:28,457 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [357442807]
[2021-11-22 20:57:28,457 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleMathsat [357442807] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-22 20:57:28,457 INFO  L186   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-22 20:57:28,457 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5
[2021-11-22 20:57:28,457 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38291996]
[2021-11-22 20:57:28,457 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-22 20:57:28,458 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-11-22 20:57:28,458 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-22 20:57:28,458 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-11-22 20:57:28,458 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2021-11-22 20:57:28,459 INFO  L87              Difference]: Start difference. First operand 5249 states and 7218 transitions. Second operand  has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-22 20:57:31,040 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.57s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2021-11-22 20:57:34,060 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-22 20:57:34,060 INFO  L93              Difference]: Finished difference Result 21840 states and 30113 transitions.
[2021-11-22 20:57:34,061 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2021-11-22 20:57:34,061 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46
[2021-11-22 20:57:34,062 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-22 20:57:34,099 INFO  L225             Difference]: With dead ends: 21840
[2021-11-22 20:57:34,099 INFO  L226             Difference]: Without dead ends: 21811
[2021-11-22 20:57:34,108 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2021-11-22 20:57:34,109 INFO  L933         BasicCegarLoop]: 2065 mSDtfsCounter, 7800 mSDsluCounter, 4016 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 189 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7800 SdHoareTripleChecker+Valid, 6081 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time
[2021-11-22 20:57:34,109 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [7800 Valid, 6081 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 283 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time]
[2021-11-22 20:57:34,124 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 21811 states.
[2021-11-22 20:57:35,345 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 21811 to 20242.
[2021-11-22 20:57:35,364 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 20242 states, 19721 states have (on average 1.3702144921657118) internal successors, (27022), 19725 states have internal predecessors, (27022), 456 states have call successors, (456), 60 states have call predecessors, (456), 60 states have return successors, (456), 456 states have call predecessors, (456), 456 states have call successors, (456)
[2021-11-22 20:57:35,394 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20242 states to 20242 states and 27934 transitions.
[2021-11-22 20:57:35,394 INFO  L78                 Accepts]: Start accepts. Automaton has 20242 states and 27934 transitions. Word has length 46
[2021-11-22 20:57:35,394 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-11-22 20:57:35,395 INFO  L470      AbstractCegarLoop]: Abstraction has 20242 states and 27934 transitions.
[2021-11-22 20:57:35,395 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 5 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-22 20:57:35,395 INFO  L276                IsEmpty]: Start isEmpty. Operand 20242 states and 27934 transitions.
[2021-11-22 20:57:35,396 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 48
[2021-11-22 20:57:35,396 INFO  L506         BasicCegarLoop]: Found error trace
[2021-11-22 20:57:35,396 INFO  L514         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]
[2021-11-22 20:57:35,578 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0
[2021-11-22 20:57:35,623 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3
[2021-11-22 20:57:35,623 INFO  L402      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2021-11-22 20:57:35,624 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-11-22 20:57:35,624 INFO  L85        PathProgramCache]: Analyzing trace with hash 968723763, now seen corresponding path program 1 times
[2021-11-22 20:57:35,630 INFO  L121   FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-22 20:57:35,630 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [271111500]
[2021-11-22 20:57:35,631 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-22 20:57:35,631 INFO  L168          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-22 20:57:35,631 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2021-11-22 20:57:35,632 INFO  L229       MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-22 20:57:35,637 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process
[2021-11-22 20:57:44,244 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-22 20:57:45,051 INFO  L263         TraceCheckSpWp]: Trace formula consists of 7739 conjuncts, 5 conjunts are in the unsatisfiable core
[2021-11-22 20:57:45,054 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-11-22 20:57:45,359 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-22 20:57:45,359 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2021-11-22 20:57:45,594 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-22 20:57:45,595 INFO  L139   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-22 20:57:45,595 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [271111500]
[2021-11-22 20:57:45,595 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleMathsat [271111500] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-22 20:57:45,595 INFO  L186   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-22 20:57:45,595 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8
[2021-11-22 20:57:45,595 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780848948]
[2021-11-22 20:57:45,595 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-22 20:57:45,596 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2021-11-22 20:57:45,596 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-22 20:57:45,596 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-11-22 20:57:45,597 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2021-11-22 20:57:45,597 INFO  L87              Difference]: Start difference. First operand 20242 states and 27934 transitions. Second operand  has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-22 20:57:49,432 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-22 20:57:49,433 INFO  L93              Difference]: Finished difference Result 70544 states and 97989 transitions.
[2021-11-22 20:57:49,434 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2021-11-22 20:57:49,434 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47
[2021-11-22 20:57:49,434 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-22 20:57:49,536 INFO  L225             Difference]: With dead ends: 70544
[2021-11-22 20:57:49,537 INFO  L226             Difference]: Without dead ends: 54188
[2021-11-22 20:57:49,572 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90
[2021-11-22 20:57:49,572 INFO  L933         BasicCegarLoop]: 1795 mSDtfsCounter, 8148 mSDsluCounter, 3721 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8148 SdHoareTripleChecker+Valid, 5516 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2021-11-22 20:57:49,572 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [8148 Valid, 5516 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2021-11-22 20:57:49,611 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 54188 states.
[2021-11-22 20:57:51,223 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 54188 to 20242.
[2021-11-22 20:57:51,244 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 20242 states, 19721 states have (on average 1.367780538512246) internal successors, (26974), 19725 states have internal predecessors, (26974), 456 states have call successors, (456), 60 states have call predecessors, (456), 60 states have return successors, (456), 456 states have call predecessors, (456), 456 states have call successors, (456)
[2021-11-22 20:57:51,280 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20242 states to 20242 states and 27886 transitions.
[2021-11-22 20:57:51,281 INFO  L78                 Accepts]: Start accepts. Automaton has 20242 states and 27886 transitions. Word has length 47
[2021-11-22 20:57:51,281 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-11-22 20:57:51,281 INFO  L470      AbstractCegarLoop]: Abstraction has 20242 states and 27886 transitions.
[2021-11-22 20:57:51,281 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-22 20:57:51,281 INFO  L276                IsEmpty]: Start isEmpty. Operand 20242 states and 27886 transitions.
[2021-11-22 20:57:51,283 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 53
[2021-11-22 20:57:51,283 INFO  L506         BasicCegarLoop]: Found error trace
[2021-11-22 20:57:51,283 INFO  L514         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]
[2021-11-22 20:57:51,458 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0
[2021-11-22 20:57:51,512 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3
[2021-11-22 20:57:51,512 INFO  L402      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2021-11-22 20:57:51,512 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-11-22 20:57:51,512 INFO  L85        PathProgramCache]: Analyzing trace with hash -174872677, now seen corresponding path program 1 times
[2021-11-22 20:57:51,521 INFO  L121   FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-22 20:57:51,521 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1760156951]
[2021-11-22 20:57:51,521 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-22 20:57:51,521 INFO  L168          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-22 20:57:51,521 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2021-11-22 20:57:51,522 INFO  L229       MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-22 20:57:51,523 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process
[2021-11-22 20:58:00,572 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-22 20:58:01,386 INFO  L263         TraceCheckSpWp]: Trace formula consists of 7782 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-11-22 20:58:01,389 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-11-22 20:58:01,531 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-22 20:58:01,531 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2021-11-22 20:58:01,614 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-22 20:58:01,614 INFO  L139   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-22 20:58:01,614 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1760156951]
[2021-11-22 20:58:01,614 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1760156951] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-22 20:58:01,614 INFO  L186   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-22 20:58:01,614 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4
[2021-11-22 20:58:01,614 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987040121]
[2021-11-22 20:58:01,614 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-22 20:58:01,615 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-11-22 20:58:01,615 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-22 20:58:01,615 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-11-22 20:58:01,615 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-11-22 20:58:01,615 INFO  L87              Difference]: Start difference. First operand 20242 states and 27886 transitions. Second operand  has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-22 20:58:05,300 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-22 20:58:05,300 INFO  L93              Difference]: Finished difference Result 45359 states and 62988 transitions.
[2021-11-22 20:58:05,301 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2021-11-22 20:58:05,301 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52
[2021-11-22 20:58:05,301 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-22 20:58:05,373 INFO  L225             Difference]: With dead ends: 45359
[2021-11-22 20:58:05,374 INFO  L226             Difference]: Without dead ends: 45355
[2021-11-22 20:58:05,387 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-11-22 20:58:05,388 INFO  L933         BasicCegarLoop]: 1976 mSDtfsCounter, 3028 mSDsluCounter, 3623 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3052 SdHoareTripleChecker+Valid, 5599 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2021-11-22 20:58:05,388 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [3052 Valid, 5599 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2021-11-22 20:58:05,418 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 45355 states.
[2021-11-22 20:58:07,203 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 45355 to 20242.
[2021-11-22 20:58:07,220 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 20242 states, 19721 states have (on average 1.3673748795700016) internal successors, (26966), 19725 states have internal predecessors, (26966), 456 states have call successors, (456), 60 states have call predecessors, (456), 60 states have return successors, (456), 456 states have call predecessors, (456), 456 states have call successors, (456)
[2021-11-22 20:58:07,249 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20242 states to 20242 states and 27878 transitions.
[2021-11-22 20:58:07,249 INFO  L78                 Accepts]: Start accepts. Automaton has 20242 states and 27878 transitions. Word has length 52
[2021-11-22 20:58:07,250 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-11-22 20:58:07,250 INFO  L470      AbstractCegarLoop]: Abstraction has 20242 states and 27878 transitions.
[2021-11-22 20:58:07,250 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-22 20:58:07,250 INFO  L276                IsEmpty]: Start isEmpty. Operand 20242 states and 27878 transitions.
[2021-11-22 20:58:07,252 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 53
[2021-11-22 20:58:07,252 INFO  L506         BasicCegarLoop]: Found error trace
[2021-11-22 20:58:07,252 INFO  L514         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]
[2021-11-22 20:58:07,423 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0
[2021-11-22 20:58:07,479 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3
[2021-11-22 20:58:07,479 INFO  L402      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2021-11-22 20:58:07,480 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-11-22 20:58:07,480 INFO  L85        PathProgramCache]: Analyzing trace with hash -695491009, now seen corresponding path program 1 times
[2021-11-22 20:58:07,487 INFO  L121   FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-22 20:58:07,487 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [163224804]
[2021-11-22 20:58:07,487 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-22 20:58:07,487 INFO  L168          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-22 20:58:07,487 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2021-11-22 20:58:07,488 INFO  L229       MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-22 20:58:07,489 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process
[2021-11-22 20:58:16,411 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-22 20:58:17,229 INFO  L263         TraceCheckSpWp]: Trace formula consists of 7761 conjuncts, 26 conjunts are in the unsatisfiable core
[2021-11-22 20:58:17,232 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-11-22 20:58:17,628 INFO  L354             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2021-11-22 20:58:17,629 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 54
[2021-11-22 20:58:17,708 INFO  L354             Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2021-11-22 20:58:17,708 INFO  L388             Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 41
[2021-11-22 20:58:17,856 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-22 20:58:17,856 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2021-11-22 20:58:18,294 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-22 20:58:18,294 INFO  L139   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-22 20:58:18,294 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [163224804]
[2021-11-22 20:58:18,295 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleMathsat [163224804] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-22 20:58:18,295 INFO  L186   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-22 20:58:18,295 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6
[2021-11-22 20:58:18,295 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015939889]
[2021-11-22 20:58:18,295 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-22 20:58:18,295 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-11-22 20:58:18,295 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-22 20:58:18,296 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-11-22 20:58:18,296 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2021-11-22 20:58:18,296 INFO  L87              Difference]: Start difference. First operand 20242 states and 27878 transitions. Second operand  has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-22 20:58:20,890 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.59s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2021-11-22 20:58:22,919 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2021-11-22 20:58:25,686 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2021-11-22 20:58:27,696 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2021-11-22 20:58:30,248 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2021-11-22 20:58:32,263 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2021-11-22 20:58:35,658 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2021-11-22 20:58:37,671 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2021-11-22 20:58:39,799 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2021-11-22 20:58:41,810 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2021-11-22 20:58:43,844 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2021-11-22 20:58:45,854 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2021-11-22 20:58:48,073 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2021-11-22 20:58:50,081 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2021-11-22 20:58:52,119 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2021-11-22 20:58:54,131 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2021-11-22 20:58:56,591 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2021-11-22 20:58:58,609 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2021-11-22 20:59:05,679 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2021-11-22 20:59:07,695 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2021-11-22 20:59:09,707 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2021-11-22 20:59:11,718 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2021-11-22 20:59:13,825 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2021-11-22 20:59:15,833 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2021-11-22 20:59:17,079 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2021-11-22 20:59:18,184 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2021-11-22 20:59:19,601 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2021-11-22 20:59:22,119 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2021-11-22 20:59:24,546 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2021-11-22 20:59:26,555 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2021-11-22 20:59:28,565 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2021-11-22 20:59:30,583 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2021-11-22 20:59:32,871 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2021-11-22 20:59:34,884 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2021-11-22 20:59:37,129 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2021-11-22 20:59:40,780 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2021-11-22 20:59:43,804 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2021-11-22 20:59:45,815 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2021-11-22 20:59:48,006 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2021-11-22 20:59:50,022 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2021-11-22 20:59:52,062 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2021-11-22 20:59:54,084 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2021-11-22 20:59:56,272 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2021-11-22 20:59:58,285 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2021-11-22 21:00:00,322 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2021-11-22 21:00:02,346 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2021-11-22 21:00:03,967 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2021-11-22 21:00:05,126 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2021-11-22 21:00:08,460 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2021-11-22 21:00:10,468 WARN  L534   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2021-11-22 21:00:21,069 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-22 21:00:21,069 INFO  L93              Difference]: Finished difference Result 76875 states and 108387 transitions.
[2021-11-22 21:00:21,073 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. 
[2021-11-22 21:00:21,074 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52
[2021-11-22 21:00:21,074 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-22 21:00:21,253 INFO  L225             Difference]: With dead ends: 76875
[2021-11-22 21:00:21,253 INFO  L226             Difference]: Without dead ends: 60494
[2021-11-22 21:00:21,280 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72
[2021-11-22 21:00:21,281 INFO  L933         BasicCegarLoop]: 2714 mSDtfsCounter, 1610 mSDsluCounter, 5257 mSDsCounter, 0 mSdLazyCounter, 805 mSolverCounterSat, 32 mSolverCounterUnsat, 44 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 114.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1624 SdHoareTripleChecker+Valid, 7971 SdHoareTripleChecker+Invalid, 881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 805 IncrementalHoareTripleChecker+Invalid, 44 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 117.5s IncrementalHoareTripleChecker+Time
[2021-11-22 21:00:21,284 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [1624 Valid, 7971 Invalid, 881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 805 Invalid, 44 Unknown, 0 Unchecked, 117.5s Time]
[2021-11-22 21:00:21,328 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 60494 states.
[2021-11-22 21:00:23,217 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 60494 to 20149.
[2021-11-22 21:00:23,242 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 20149 states, 19628 states have (on average 1.3668738536784186) internal successors, (26829), 19632 states have internal predecessors, (26829), 456 states have call successors, (456), 60 states have call predecessors, (456), 60 states have return successors, (456), 456 states have call predecessors, (456), 456 states have call successors, (456)
[2021-11-22 21:00:23,272 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20149 states to 20149 states and 27741 transitions.
[2021-11-22 21:00:23,273 INFO  L78                 Accepts]: Start accepts. Automaton has 20149 states and 27741 transitions. Word has length 52
[2021-11-22 21:00:23,273 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-11-22 21:00:23,273 INFO  L470      AbstractCegarLoop]: Abstraction has 20149 states and 27741 transitions.
[2021-11-22 21:00:23,274 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-22 21:00:23,274 INFO  L276                IsEmpty]: Start isEmpty. Operand 20149 states and 27741 transitions.
[2021-11-22 21:00:23,275 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 56
[2021-11-22 21:00:23,275 INFO  L506         BasicCegarLoop]: Found error trace
[2021-11-22 21:00:23,276 INFO  L514         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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-22 21:00:23,453 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0
[2021-11-22 21:00:23,484 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3
[2021-11-22 21:00:23,484 INFO  L402      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2021-11-22 21:00:23,485 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-11-22 21:00:23,485 INFO  L85        PathProgramCache]: Analyzing trace with hash 1588129367, now seen corresponding path program 1 times
[2021-11-22 21:00:23,492 INFO  L121   FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-22 21:00:23,492 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1994663012]
[2021-11-22 21:00:23,492 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-22 21:00:23,492 INFO  L168          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-22 21:00:23,493 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2021-11-22 21:00:23,494 INFO  L229       MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-22 21:00:23,495 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process
[2021-11-22 21:00:32,363 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-22 21:00:33,188 INFO  L263         TraceCheckSpWp]: Trace formula consists of 7786 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-11-22 21:00:33,191 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-11-22 21:00:33,743 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-22 21:00:33,743 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2021-11-22 21:00:34,325 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-22 21:00:34,325 INFO  L139   FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-22 21:00:34,325 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1994663012]
[2021-11-22 21:00:34,325 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleMathsat [1994663012] provided 0 perfect and 2 imperfect interpolant sequences
[2021-11-22 21:00:34,325 INFO  L186   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2021-11-22 21:00:34,325 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6
[2021-11-22 21:00:34,325 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957505333]
[2021-11-22 21:00:34,325 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2021-11-22 21:00:34,326 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-11-22 21:00:34,326 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-22 21:00:34,326 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-11-22 21:00:34,326 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2021-11-22 21:00:34,326 INFO  L87              Difference]: Start difference. First operand 20149 states and 27741 transitions. Second operand  has 6 states, 6 states have (on average 17.0) internal successors, (102), 6 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-22 21:00:35,839 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-22 21:00:35,840 INFO  L93              Difference]: Finished difference Result 30609 states and 42136 transitions.
[2021-11-22 21:00:35,841 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2021-11-22 21:00:35,841 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 17.0) internal successors, (102), 6 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55
[2021-11-22 21:00:35,841 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-22 21:00:35,868 INFO  L225             Difference]: With dead ends: 30609
[2021-11-22 21:00:35,869 INFO  L226             Difference]: Without dead ends: 14311
[2021-11-22 21:00:35,890 INFO  L932         BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2021-11-22 21:00:35,891 INFO  L933         BasicCegarLoop]: 1887 mSDtfsCounter, 1694 mSDsluCounter, 3132 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1718 SdHoareTripleChecker+Valid, 5019 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2021-11-22 21:00:35,893 INFO  L934         BasicCegarLoop]: SdHoareTripleChecker [1718 Valid, 5019 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2021-11-22 21:00:35,903 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14311 states.
[2021-11-22 21:00:37,034 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14311 to 14307.
[2021-11-22 21:00:37,049 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 14307 states, 13906 states have (on average 1.3633683302171724) internal successors, (18959), 13910 states have internal predecessors, (18959), 336 states have call successors, (336), 60 states have call predecessors, (336), 60 states have return successors, (336), 336 states have call predecessors, (336), 336 states have call successors, (336)
[2021-11-22 21:00:37,071 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 14307 states to 14307 states and 19631 transitions.
[2021-11-22 21:00:37,072 INFO  L78                 Accepts]: Start accepts. Automaton has 14307 states and 19631 transitions. Word has length 55
[2021-11-22 21:00:37,072 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-11-22 21:00:37,072 INFO  L470      AbstractCegarLoop]: Abstraction has 14307 states and 19631 transitions.
[2021-11-22 21:00:37,072 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 17.0) internal successors, (102), 6 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-11-22 21:00:37,073 INFO  L276                IsEmpty]: Start isEmpty. Operand 14307 states and 19631 transitions.
[2021-11-22 21:00:37,075 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 64
[2021-11-22 21:00:37,075 INFO  L506         BasicCegarLoop]: Found error trace
[2021-11-22 21:00:37,076 INFO  L514         BasicCegarLoop]: trace histogram [3, 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]
[2021-11-22 21:00:37,284 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0
[2021-11-22 21:00:37,288 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3
[2021-11-22 21:00:37,288 INFO  L402      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] ===
[2021-11-22 21:00:37,288 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-11-22 21:00:37,289 INFO  L85        PathProgramCache]: Analyzing trace with hash -1399407338, now seen corresponding path program 1 times
[2021-11-22 21:00:37,296 INFO  L121   FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-22 21:00:37,296 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [451017486]
[2021-11-22 21:00:37,296 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-22 21:00:37,296 INFO  L168          SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-22 21:00:37,296 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat
[2021-11-22 21:00:37,299 INFO  L229       MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-22 21:00:37,300 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process
Killed by 15