./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5b36d44f 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-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.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 a521111bd175d3310336dcb5a96ef10ad6928036ed2148cdf12f5390a99f6bb7 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 19:26:05,326 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 19:26:05,352 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 19:26:05,384 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 19:26:05,385 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 19:26:05,387 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 19:26:05,388 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 19:26:05,390 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 19:26:05,391 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 19:26:05,394 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 19:26:05,395 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 19:26:05,396 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 19:26:05,396 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 19:26:05,398 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 19:26:05,399 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 19:26:05,401 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 19:26:05,402 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 19:26:05,403 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 19:26:05,404 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 19:26:05,408 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 19:26:05,409 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 19:26:05,410 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 19:26:05,411 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 19:26:05,412 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 19:26:05,416 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 19:26:05,416 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 19:26:05,416 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 19:26:05,417 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 19:26:05,418 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 19:26:05,418 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 19:26:05,418 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 19:26:05,419 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 19:26:05,420 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 19:26:05,421 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 19:26:05,422 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 19:26:05,422 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 19:26:05,422 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 19:26:05,422 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 19:26:05,423 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 19:26:05,423 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 19:26:05,423 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 19:26:05,425 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 19:26:05,449 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 19:26:05,449 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 19:26:05,450 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 19:26:05,450 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 19:26:05,451 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 19:26:05,451 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 19:26:05,451 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 19:26:05,451 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 19:26:05,451 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 19:26:05,451 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 19:26:05,452 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 19:26:05,452 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 19:26:05,452 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 19:26:05,452 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 19:26:05,453 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 19:26:05,453 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 19:26:05,453 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 19:26:05,453 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 19:26:05,453 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 19:26:05,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 19:26:05,453 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 19:26:05,454 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 19:26:05,454 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 19:26:05,454 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 19:26:05,454 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 19:26:05,454 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 19:26:05,454 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 19:26:05,455 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 19:26:05,455 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 19:26:05,455 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a521111bd175d3310336dcb5a96ef10ad6928036ed2148cdf12f5390a99f6bb7 [2021-11-07 19:26:05,657 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 19:26:05,674 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 19:26:05,676 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 19:26:05,677 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 19:26:05,678 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 19:26:05,679 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i [2021-11-07 19:26:05,725 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4271bba7/2dc6a517f9fe42cd950a627dbac79c0c/FLAG8365ead3d [2021-11-07 19:26:06,444 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 19:26:06,445 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i [2021-11-07 19:26:06,511 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4271bba7/2dc6a517f9fe42cd950a627dbac79c0c/FLAG8365ead3d [2021-11-07 19:26:06,761 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4271bba7/2dc6a517f9fe42cd950a627dbac79c0c [2021-11-07 19:26:06,763 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 19:26:06,763 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 19:26:06,764 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 19:26:06,765 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 19:26:06,767 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 19:26:06,768 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:26:06" (1/1) ... [2021-11-07 19:26:06,768 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67d396e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:26:06, skipping insertion in model container [2021-11-07 19:26:06,768 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:26:06" (1/1) ... [2021-11-07 19:26:06,773 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 19:26:06,901 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 19:26:11,415 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i[599511,599524] [2021-11-07 19:26:11,417 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i[599658,599671] [2021-11-07 19:26:11,418 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i[599797,599810] [2021-11-07 19:26:11,422 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i[599955,599968] [2021-11-07 19:26:11,449 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 19:26:11,533 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 19:26:12,071 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i[599511,599524] [2021-11-07 19:26:12,072 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i[599658,599671] [2021-11-07 19:26:12,072 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i[599797,599810] [2021-11-07 19:26:12,072 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i[599955,599968] [2021-11-07 19:26:12,077 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 19:26:12,232 INFO L208 MainTranslator]: Completed translation [2021-11-07 19:26:12,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:26:12 WrapperNode [2021-11-07 19:26:12,233 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 19:26:12,234 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 19:26:12,234 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 19:26:12,234 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 19:26:12,239 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:26:12" (1/1) ... [2021-11-07 19:26:12,378 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:26:12" (1/1) ... [2021-11-07 19:26:13,161 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 19:26:13,175 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 19:26:13,176 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 19:26:13,176 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 19:26:13,183 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:26:12" (1/1) ... [2021-11-07 19:26:13,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:26:12" (1/1) ... [2021-11-07 19:26:13,587 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:26:12" (1/1) ... [2021-11-07 19:26:13,587 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:26:12" (1/1) ... [2021-11-07 19:26:14,180 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:26:12" (1/1) ... [2021-11-07 19:26:14,267 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:26:12" (1/1) ... [2021-11-07 19:26:14,332 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:26:12" (1/1) ... [2021-11-07 19:26:14,647 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 19:26:14,658 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 19:26:14,658 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 19:26:14,658 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 19:26:14,659 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:26:12" (1/1) ... [2021-11-07 19:26:14,679 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 19:26:14,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 19:26:14,729 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) [2021-11-07 19:26:14,808 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 [2021-11-07 19:26:14,832 INFO L130 BoogieDeclarations]: Found specification of procedure __put_user_bad [2021-11-07 19:26:14,847 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-07 19:26:14,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 19:26:14,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 19:26:14,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 19:26:14,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 19:26:14,848 INFO L130 BoogieDeclarations]: Found specification of procedure __get_user_bad [2021-11-07 19:26:14,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 19:26:14,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 19:26:14,848 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-07 19:26:14,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 19:26:14,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 19:26:14,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 19:26:14,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 19:26:14,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 19:26:14,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 19:26:14,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 19:26:14,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 19:26:14,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 19:30:41,165 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11600-3: __copy_from_user_nocheck_#t~ret1212 := copy_user_generic_#res;__copy_from_user_nocheck_~tmp___2~10 := __copy_from_user_nocheck_#t~ret1212;havoc __copy_from_user_nocheck_#t~ret1212;__copy_from_user_nocheck_#res := (if __copy_from_user_nocheck_~tmp___2~10 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_from_user_nocheck_~tmp___2~10 % 18446744073709551616 % 4294967296 else __copy_from_user_nocheck_~tmp___2~10 % 18446744073709551616 % 4294967296 - 4294967296); [2021-11-07 19:30:41,165 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11600-5: __copy_to_user_nocheck_#t~ret1217 := copy_user_generic_#res;__copy_to_user_nocheck_~tmp___2~11 := __copy_to_user_nocheck_#t~ret1217;havoc __copy_to_user_nocheck_#t~ret1217;__copy_to_user_nocheck_#res := (if __copy_to_user_nocheck_~tmp___2~11 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_to_user_nocheck_~tmp___2~11 % 18446744073709551616 % 4294967296 else __copy_to_user_nocheck_~tmp___2~11 % 18446744073709551616 % 4294967296 - 4294967296); [2021-11-07 19:30:41,165 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11600-1: __copy_from_user_nocheck_#t~ret1212 := copy_user_generic_#res;__copy_from_user_nocheck_~tmp___2~10 := __copy_from_user_nocheck_#t~ret1212;havoc __copy_from_user_nocheck_#t~ret1212;__copy_from_user_nocheck_#res := (if __copy_from_user_nocheck_~tmp___2~10 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_from_user_nocheck_~tmp___2~10 % 18446744073709551616 % 4294967296 else __copy_from_user_nocheck_~tmp___2~10 % 18446744073709551616 % 4294967296 - 4294967296); [2021-11-07 19:30:41,166 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11600-7: __copy_to_user_nocheck_#t~ret1217 := copy_user_generic_#res;__copy_to_user_nocheck_~tmp___2~11 := __copy_to_user_nocheck_#t~ret1217;havoc __copy_to_user_nocheck_#t~ret1217;__copy_to_user_nocheck_#res := (if __copy_to_user_nocheck_~tmp___2~11 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_to_user_nocheck_~tmp___2~11 % 18446744073709551616 % 4294967296 else __copy_to_user_nocheck_~tmp___2~11 % 18446744073709551616 % 4294967296 - 4294967296); [2021-11-07 19:30:41,166 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11619-1: __copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-07 19:30:41,166 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11619: __copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-07 19:30:41,166 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-07 19:30:41,166 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11622-1: assume 2 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-07 19:30:41,166 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11622-1: assume !(2 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-07 19:30:41,166 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11622: assume 2 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-07 19:30:41,166 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11622: assume !(2 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-07 19:30:41,167 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11623-1: __copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-07 19:30:41,167 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11623: __copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-07 19:30:41,167 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11626: assume 4 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-07 19:30:41,167 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11626: assume !(4 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-07 19:30:41,167 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11626-1: assume 4 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-07 19:30:41,167 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11626-1: assume !(4 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-07 19:30:41,167 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11627-1: __copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-07 19:30:41,167 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11627: __copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-07 19:30:41,168 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11630-1: assume 8 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-07 19:30:41,168 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11630-1: assume !(8 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-07 19:30:41,168 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11630: assume 8 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-07 19:30:41,168 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11630: assume !(8 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-07 19:30:41,168 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11631-1: __copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-07 19:30:41,168 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11631: __copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-07 19:30:41,168 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11634: assume 10 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-07 19:30:41,168 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11634: assume !(10 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-07 19:30:41,169 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11634-1: assume 10 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-07 19:30:41,169 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11634-1: assume !(10 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-07 19:30:41,169 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11635-1: ldv__builtin_expect_#in~exp, ldv__builtin_expect_#in~c := (if 0 != __copy_from_user_nocheck_~ret~17 then 1 else 0), 0;havoc ldv__builtin_expect_#res;havoc ldv__builtin_expect_~exp, ldv__builtin_expect_~c;ldv__builtin_expect_~exp := ldv__builtin_expect_#in~exp;ldv__builtin_expect_~c := ldv__builtin_expect_#in~c;ldv__builtin_expect_#res := ldv__builtin_expect_~exp; [2021-11-07 19:30:41,169 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11635: ldv__builtin_expect_#in~exp, ldv__builtin_expect_#in~c := (if 0 != __copy_from_user_nocheck_~ret~17 then 1 else 0), 0;havoc ldv__builtin_expect_#res;havoc ldv__builtin_expect_~exp, ldv__builtin_expect_~c;ldv__builtin_expect_~exp := ldv__builtin_expect_#in~exp;ldv__builtin_expect_~c := ldv__builtin_expect_#in~c;ldv__builtin_expect_#res := ldv__builtin_expect_~exp; [2021-11-07 19:30:41,169 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11638-1: assume 16 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-07 19:30:41,169 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11638-1: assume !(16 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-07 19:30:41,169 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11638: assume 16 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-07 19:30:41,169 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11638: assume !(16 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-07 19:30:41,170 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11639-1: ldv__builtin_expect_#in~exp, ldv__builtin_expect_#in~c := (if 0 != __copy_from_user_nocheck_~ret~17 then 1 else 0), 0;havoc ldv__builtin_expect_#res;havoc ldv__builtin_expect_~exp, ldv__builtin_expect_~c;ldv__builtin_expect_~exp := ldv__builtin_expect_#in~exp;ldv__builtin_expect_~c := ldv__builtin_expect_#in~c;ldv__builtin_expect_#res := ldv__builtin_expect_~exp; [2021-11-07 19:30:41,170 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11639: ldv__builtin_expect_#in~exp, ldv__builtin_expect_#in~c := (if 0 != __copy_from_user_nocheck_~ret~17 then 1 else 0), 0;havoc ldv__builtin_expect_#res;havoc ldv__builtin_expect_~exp, ldv__builtin_expect_~c;ldv__builtin_expect_~exp := ldv__builtin_expect_#in~exp;ldv__builtin_expect_~c := ldv__builtin_expect_#in~c;ldv__builtin_expect_#res := ldv__builtin_expect_~exp; [2021-11-07 19:30:41,170 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11642: copy_user_generic_#in~to.base, copy_user_generic_#in~to.offset, copy_user_generic_#in~from.base, copy_user_generic_#in~from.offset, copy_user_generic_#in~len := __copy_from_user_nocheck_~dst.base, __copy_from_user_nocheck_~dst.offset, __copy_from_user_nocheck_~src.base, __copy_from_user_nocheck_~src.offset, __copy_from_user_nocheck_~size;havoc copy_user_generic_#res;havoc copy_user_generic_~to.base, copy_user_generic_~to.offset, copy_user_generic_~from.base, copy_user_generic_~from.offset, copy_user_generic_~len, copy_user_generic_~ret~16;copy_user_generic_~to.base, copy_user_generic_~to.offset := copy_user_generic_#in~to.base, copy_user_generic_#in~to.offset;copy_user_generic_~from.base, copy_user_generic_~from.offset := copy_user_generic_#in~from.base, copy_user_generic_#in~from.offset;copy_user_generic_~len := copy_user_generic_#in~len;havoc copy_user_generic_~ret~16;copy_user_generic_#res := copy_user_generic_~ret~16 % 4294967296; [2021-11-07 19:30:41,170 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11642-1: copy_user_generic_#in~to.base, copy_user_generic_#in~to.offset, copy_user_generic_#in~from.base, copy_user_generic_#in~from.offset, copy_user_generic_#in~len := __copy_from_user_nocheck_~dst.base, __copy_from_user_nocheck_~dst.offset, __copy_from_user_nocheck_~src.base, __copy_from_user_nocheck_~src.offset, __copy_from_user_nocheck_~size;havoc copy_user_generic_#res;havoc copy_user_generic_~to.base, copy_user_generic_~to.offset, copy_user_generic_~from.base, copy_user_generic_~from.offset, copy_user_generic_~len, copy_user_generic_~ret~16;copy_user_generic_~to.base, copy_user_generic_~to.offset := copy_user_generic_#in~to.base, copy_user_generic_#in~to.offset;copy_user_generic_~from.base, copy_user_generic_~from.offset := copy_user_generic_#in~from.base, copy_user_generic_#in~from.offset;copy_user_generic_~len := copy_user_generic_#in~len;havoc copy_user_generic_~ret~16;copy_user_generic_#res := copy_user_generic_~ret~16 % 4294967296; [2021-11-07 19:30:41,170 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-07 19:30:41,170 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11670-1: assume 0 != __copy_from_user_nocheck_~tmp___0~25;__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-07 19:30:41,170 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11670-1: assume !(0 != __copy_from_user_nocheck_~tmp___0~25);__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-07 19:30:41,171 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11670: assume 0 != __copy_from_user_nocheck_~tmp___0~25;__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-07 19:30:41,171 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11670: assume !(0 != __copy_from_user_nocheck_~tmp___0~25);__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-07 19:30:41,171 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11685-1: assume 0 != __copy_from_user_nocheck_~tmp___1~14;__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-07 19:30:41,171 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11685-1: assume !(0 != __copy_from_user_nocheck_~tmp___1~14);__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-07 19:30:41,171 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11685: assume 0 != __copy_from_user_nocheck_~tmp___1~14;__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-07 19:30:41,171 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11685: assume !(0 != __copy_from_user_nocheck_~tmp___1~14);__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-07 19:30:41,171 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11728: __copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-07 19:30:41,172 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11728-1: __copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-07 19:30:41,172 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11731-1: assume 2 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-07 19:30:41,172 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11731-1: assume !(2 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-07 19:30:41,172 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11731: assume 2 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-07 19:30:41,172 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11731: assume !(2 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-07 19:30:41,172 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11732: __copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-07 19:30:41,172 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11732-1: __copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-07 19:30:41,172 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11735-1: assume 4 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-07 19:30:41,172 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11735-1: assume !(4 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-07 19:30:41,173 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11735: assume 4 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-07 19:30:41,173 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11735: assume !(4 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-07 19:30:41,173 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11736: __copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-07 19:30:41,173 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11736-1: __copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-07 19:30:41,173 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11739-1: assume 8 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-07 19:30:41,173 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11739-1: assume !(8 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-07 19:30:41,173 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11739: assume 8 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-07 19:30:41,173 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11739: assume !(8 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-07 19:30:41,174 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11740: __copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-07 19:30:41,174 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11740-1: __copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-07 19:30:41,174 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11743-1: assume 10 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-07 19:30:41,174 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11743-1: assume !(10 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-07 19:30:41,174 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11743: assume 10 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-07 19:30:41,174 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11743: assume !(10 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-07 19:30:41,174 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11744: ldv__builtin_expect_#in~exp, ldv__builtin_expect_#in~c := (if 0 != __copy_to_user_nocheck_~ret~18 then 1 else 0), 0;havoc ldv__builtin_expect_#res;havoc ldv__builtin_expect_~exp, ldv__builtin_expect_~c;ldv__builtin_expect_~exp := ldv__builtin_expect_#in~exp;ldv__builtin_expect_~c := ldv__builtin_expect_#in~c;ldv__builtin_expect_#res := ldv__builtin_expect_~exp; [2021-11-07 19:30:41,174 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11744-1: ldv__builtin_expect_#in~exp, ldv__builtin_expect_#in~c := (if 0 != __copy_to_user_nocheck_~ret~18 then 1 else 0), 0;havoc ldv__builtin_expect_#res;havoc ldv__builtin_expect_~exp, ldv__builtin_expect_~c;ldv__builtin_expect_~exp := ldv__builtin_expect_#in~exp;ldv__builtin_expect_~c := ldv__builtin_expect_#in~c;ldv__builtin_expect_#res := ldv__builtin_expect_~exp; [2021-11-07 19:30:41,175 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11747-1: assume 16 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-07 19:30:41,175 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11747-1: assume !(16 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-07 19:30:41,175 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11747: assume 16 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-07 19:30:41,175 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11747: assume !(16 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-07 19:30:41,175 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11748: ldv__builtin_expect_#in~exp, ldv__builtin_expect_#in~c := (if 0 != __copy_to_user_nocheck_~ret~18 then 1 else 0), 0;havoc ldv__builtin_expect_#res;havoc ldv__builtin_expect_~exp, ldv__builtin_expect_~c;ldv__builtin_expect_~exp := ldv__builtin_expect_#in~exp;ldv__builtin_expect_~c := ldv__builtin_expect_#in~c;ldv__builtin_expect_#res := ldv__builtin_expect_~exp; [2021-11-07 19:30:41,175 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11748-1: ldv__builtin_expect_#in~exp, ldv__builtin_expect_#in~c := (if 0 != __copy_to_user_nocheck_~ret~18 then 1 else 0), 0;havoc ldv__builtin_expect_#res;havoc ldv__builtin_expect_~exp, ldv__builtin_expect_~c;ldv__builtin_expect_~exp := ldv__builtin_expect_#in~exp;ldv__builtin_expect_~c := ldv__builtin_expect_#in~c;ldv__builtin_expect_#res := ldv__builtin_expect_~exp; [2021-11-07 19:30:41,175 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11751-1: copy_user_generic_#in~to.base, copy_user_generic_#in~to.offset, copy_user_generic_#in~from.base, copy_user_generic_#in~from.offset, copy_user_generic_#in~len := __copy_to_user_nocheck_~dst.base, __copy_to_user_nocheck_~dst.offset, __copy_to_user_nocheck_~src.base, __copy_to_user_nocheck_~src.offset, __copy_to_user_nocheck_~size;havoc copy_user_generic_#res;havoc copy_user_generic_~to.base, copy_user_generic_~to.offset, copy_user_generic_~from.base, copy_user_generic_~from.offset, copy_user_generic_~len, copy_user_generic_~ret~16;copy_user_generic_~to.base, copy_user_generic_~to.offset := copy_user_generic_#in~to.base, copy_user_generic_#in~to.offset;copy_user_generic_~from.base, copy_user_generic_~from.offset := copy_user_generic_#in~from.base, copy_user_generic_#in~from.offset;copy_user_generic_~len := copy_user_generic_#in~len;havoc copy_user_generic_~ret~16;copy_user_generic_#res := copy_user_generic_~ret~16 % 4294967296; [2021-11-07 19:30:41,176 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11751: copy_user_generic_#in~to.base, copy_user_generic_#in~to.offset, copy_user_generic_#in~from.base, copy_user_generic_#in~from.offset, copy_user_generic_#in~len := __copy_to_user_nocheck_~dst.base, __copy_to_user_nocheck_~dst.offset, __copy_to_user_nocheck_~src.base, __copy_to_user_nocheck_~src.offset, __copy_to_user_nocheck_~size;havoc copy_user_generic_#res;havoc copy_user_generic_~to.base, copy_user_generic_~to.offset, copy_user_generic_~from.base, copy_user_generic_~from.offset, copy_user_generic_~len, copy_user_generic_~ret~16;copy_user_generic_~to.base, copy_user_generic_~to.offset := copy_user_generic_#in~to.base, copy_user_generic_#in~to.offset;copy_user_generic_~from.base, copy_user_generic_~from.offset := copy_user_generic_#in~from.base, copy_user_generic_#in~from.offset;copy_user_generic_~len := copy_user_generic_#in~len;havoc copy_user_generic_~ret~16;copy_user_generic_#res := copy_user_generic_~ret~16 % 4294967296; [2021-11-07 19:30:41,176 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11774-1: assume 0 != __copy_to_user_nocheck_~tmp___0~26;__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-07 19:30:41,176 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11774-1: assume !(0 != __copy_to_user_nocheck_~tmp___0~26);__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-07 19:30:41,176 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11774: assume 0 != __copy_to_user_nocheck_~tmp___0~26;__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-07 19:30:41,182 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11774: assume !(0 != __copy_to_user_nocheck_~tmp___0~26);__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-07 19:30:41,183 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11788: assume 0 != __copy_to_user_nocheck_~tmp___1~15;__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-07 19:30:41,183 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11788: assume !(0 != __copy_to_user_nocheck_~tmp___1~15);__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-07 19:30:41,183 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11788-1: assume 0 != __copy_to_user_nocheck_~tmp___1~15;__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-07 19:30:41,183 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11788-1: assume !(0 != __copy_to_user_nocheck_~tmp___1~15);__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-07 19:30:41,183 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-07 19:30:41,184 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5990: assume 1 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-07 19:30:41,184 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5991: assume !(1 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-07 19:30:41,185 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-07 19:30:41,185 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break: ldv_switch_4_#res := 0; [2021-11-07 19:30:41,185 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6073: assume 1 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-07 19:30:41,185 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6074: assume !(1 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-07 19:30:41,186 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break: ldv_switch_3_#res := 0; [2021-11-07 19:30:41,186 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6228: assume !(1 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-07 19:30:41,186 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6227: assume 1 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-07 19:30:41,186 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6176: assume 1 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-07 19:30:41,186 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6177: assume !(1 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-07 19:30:41,187 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-07 19:30:41,187 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L20889-5: __copy_from_user_nocheck_#t~ret1210 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret1210 && __copy_from_user_nocheck_#t~ret1210 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___0~25 := __copy_from_user_nocheck_#t~ret1210;havoc __copy_from_user_nocheck_#t~ret1210; [2021-11-07 19:30:41,187 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L20889-6: __copy_from_user_nocheck_#t~ret1211 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret1211 && __copy_from_user_nocheck_#t~ret1211 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___1~14 := __copy_from_user_nocheck_#t~ret1211;havoc __copy_from_user_nocheck_#t~ret1211; [2021-11-07 19:30:41,187 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L20889-17: __copy_to_user_nocheck_#t~ret1216 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret1216 && __copy_to_user_nocheck_#t~ret1216 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___1~15 := __copy_to_user_nocheck_#t~ret1216;havoc __copy_to_user_nocheck_#t~ret1216; [2021-11-07 19:30:41,188 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L20889-16: __copy_to_user_nocheck_#t~ret1215 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret1215 && __copy_to_user_nocheck_#t~ret1215 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___0~26 := __copy_to_user_nocheck_#t~ret1215;havoc __copy_to_user_nocheck_#t~ret1215; [2021-11-07 19:30:41,188 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L20889-9: __copy_from_user_nocheck_#t~ret1210 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret1210 && __copy_from_user_nocheck_#t~ret1210 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___0~25 := __copy_from_user_nocheck_#t~ret1210;havoc __copy_from_user_nocheck_#t~ret1210; [2021-11-07 19:30:41,188 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L20889-10: __copy_from_user_nocheck_#t~ret1211 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret1211 && __copy_from_user_nocheck_#t~ret1211 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___1~14 := __copy_from_user_nocheck_#t~ret1211;havoc __copy_from_user_nocheck_#t~ret1211; [2021-11-07 19:30:41,188 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L20889-13: __copy_to_user_nocheck_#t~ret1215 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret1215 && __copy_to_user_nocheck_#t~ret1215 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___0~26 := __copy_to_user_nocheck_#t~ret1215;havoc __copy_to_user_nocheck_#t~ret1215; [2021-11-07 19:30:41,188 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L20889-14: __copy_to_user_nocheck_#t~ret1216 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret1216 && __copy_to_user_nocheck_#t~ret1216 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___1~15 := __copy_to_user_nocheck_#t~ret1216;havoc __copy_to_user_nocheck_#t~ret1216; [2021-11-07 19:30:41,188 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-07 19:30:41,213 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 19:30:41,214 INFO L299 CfgBuilder]: Removed 5897 assume(true) statements. [2021-11-07 19:30:41,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:30:41 BoogieIcfgContainer [2021-11-07 19:30:41,222 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 19:30:41,223 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 19:30:41,223 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 19:30:41,225 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 19:30:41,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:26:06" (1/3) ... [2021-11-07 19:30:41,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36e00ff3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:30:41, skipping insertion in model container [2021-11-07 19:30:41,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:26:12" (2/3) ... [2021-11-07 19:30:41,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36e00ff3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:30:41, skipping insertion in model container [2021-11-07 19:30:41,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:30:41" (3/3) ... [2021-11-07 19:30:41,228 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i [2021-11-07 19:30:41,231 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 19:30:41,232 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2021-11-07 19:30:41,295 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 19:30:41,302 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 [2021-11-07 19:30:41,302 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2021-11-07 19:30:41,382 INFO L276 IsEmpty]: Start isEmpty. Operand has 7128 states, 7118 states have (on average 1.3818488339421187) internal successors, (9836), 7127 states have internal predecessors, (9836), 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) [2021-11-07 19:30:41,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-07 19:30:41,402 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:30:41,402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 19:30:41,403 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 19:30:41,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:30:41,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1897720244, now seen corresponding path program 1 times [2021-11-07 19:30:41,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:30:41,416 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495906878] [2021-11-07 19:30:41,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:30:41,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:30:42,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:30:42,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 19:30:42,475 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:30:42,475 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495906878] [2021-11-07 19:30:42,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495906878] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:30:42,476 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:30:42,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 19:30:42,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957302632] [2021-11-07 19:30:42,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:30:42,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 19:30:42,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:30:42,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 19:30:42,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 19:30:42,509 INFO L87 Difference]: Start difference. First operand has 7128 states, 7118 states have (on average 1.3818488339421187) internal successors, (9836), 7127 states have internal predecessors, (9836), 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) Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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) [2021-11-07 19:30:44,719 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 19:30:45,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:30:45,559 INFO L93 Difference]: Finished difference Result 20567 states and 28458 transitions. [2021-11-07 19:30:45,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 19:30:45,561 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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 112 [2021-11-07 19:30:45,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:30:45,624 INFO L225 Difference]: With dead ends: 20567 [2021-11-07 19:30:45,625 INFO L226 Difference]: Without dead ends: 13175 [2021-11-07 19:30:45,647 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 40.42ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 19:30:45,651 INFO L933 BasicCegarLoop]: 9734 mSDtfsCounter, 9198 mSDsluCounter, 9635 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2535.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9198 SdHoareTripleChecker+Valid, 19369 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 41.81ms SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2690.39ms IncrementalHoareTripleChecker+Time [2021-11-07 19:30:45,652 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9198 Valid, 19369 Invalid, 84 Unknown, 0 Unchecked, 41.81ms Time], IncrementalHoareTripleChecker [17 Valid, 66 Invalid, 1 Unknown, 0 Unchecked, 2690.39ms Time] [2021-11-07 19:30:45,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13175 states. [2021-11-07 19:30:46,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13175 to 13161. [2021-11-07 19:30:46,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13161 states, 13151 states have (on average 1.3478822903201277) internal successors, (17726), 13160 states have internal predecessors, (17726), 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) [2021-11-07 19:30:46,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13161 states to 13161 states and 17726 transitions. [2021-11-07 19:30:46,212 INFO L78 Accepts]: Start accepts. Automaton has 13161 states and 17726 transitions. Word has length 112 [2021-11-07 19:30:46,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:30:46,214 INFO L470 AbstractCegarLoop]: Abstraction has 13161 states and 17726 transitions. [2021-11-07 19:30:46,215 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 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) [2021-11-07 19:30:46,216 INFO L276 IsEmpty]: Start isEmpty. Operand 13161 states and 17726 transitions. [2021-11-07 19:30:46,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-11-07 19:30:46,221 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:30:46,222 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 19:30:46,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 19:30:46,222 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 19:30:46,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:30:46,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1918343768, now seen corresponding path program 1 times [2021-11-07 19:30:46,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:30:46,227 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742517734] [2021-11-07 19:30:46,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:30:46,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:30:46,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:30:46,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 19:30:46,812 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:30:46,812 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742517734] [2021-11-07 19:30:46,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742517734] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:30:46,812 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:30:46,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 19:30:46,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038653987] [2021-11-07 19:30:46,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:30:46,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 19:30:46,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:30:46,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 19:30:46,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 19:30:46,814 INFO L87 Difference]: Start difference. First operand 13161 states and 17726 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 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) [2021-11-07 19:30:49,005 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 19:30:49,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:30:49,740 INFO L93 Difference]: Finished difference Result 29439 states and 39639 transitions. [2021-11-07 19:30:49,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 19:30:49,740 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 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 136 [2021-11-07 19:30:49,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:30:49,808 INFO L225 Difference]: With dead ends: 29439 [2021-11-07 19:30:49,808 INFO L226 Difference]: Without dead ends: 16530 [2021-11-07 19:30:49,832 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.52ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 19:30:49,833 INFO L933 BasicCegarLoop]: 9070 mSDtfsCounter, 2287 mSDsluCounter, 9041 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2420.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2287 SdHoareTripleChecker+Valid, 18111 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 16.96ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2575.68ms IncrementalHoareTripleChecker+Time [2021-11-07 19:30:49,833 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2287 Valid, 18111 Invalid, 64 Unknown, 0 Unchecked, 16.96ms Time], IncrementalHoareTripleChecker [16 Valid, 47 Invalid, 1 Unknown, 0 Unchecked, 2575.68ms Time] [2021-11-07 19:30:49,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16530 states. [2021-11-07 19:30:50,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16530 to 16490. [2021-11-07 19:30:50,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16490 states, 16480 states have (on average 1.3431432038834952) internal successors, (22135), 16489 states have internal predecessors, (22135), 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) [2021-11-07 19:30:50,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16490 states to 16490 states and 22135 transitions. [2021-11-07 19:30:50,191 INFO L78 Accepts]: Start accepts. Automaton has 16490 states and 22135 transitions. Word has length 136 [2021-11-07 19:30:50,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:30:50,194 INFO L470 AbstractCegarLoop]: Abstraction has 16490 states and 22135 transitions. [2021-11-07 19:30:50,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 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) [2021-11-07 19:30:50,194 INFO L276 IsEmpty]: Start isEmpty. Operand 16490 states and 22135 transitions. [2021-11-07 19:30:50,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-11-07 19:30:50,205 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:30:50,206 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 19:30:50,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 19:30:50,206 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 19:30:50,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:30:50,208 INFO L85 PathProgramCache]: Analyzing trace with hash -93805013, now seen corresponding path program 1 times [2021-11-07 19:30:50,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:30:50,209 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378604820] [2021-11-07 19:30:50,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:30:50,210 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:30:50,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:30:50,796 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 19:30:50,796 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:30:50,796 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378604820] [2021-11-07 19:30:50,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378604820] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:30:50,796 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:30:50,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 19:30:50,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313839761] [2021-11-07 19:30:50,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:30:50,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 19:30:50,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:30:50,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 19:30:50,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 19:30:50,797 INFO L87 Difference]: Start difference. First operand 16490 states and 22135 transitions. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 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) [2021-11-07 19:30:52,967 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 19:30:53,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:30:53,564 INFO L93 Difference]: Finished difference Result 34560 states and 46390 transitions. [2021-11-07 19:30:53,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 19:30:53,564 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 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 153 [2021-11-07 19:30:53,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:30:53,608 INFO L225 Difference]: With dead ends: 34560 [2021-11-07 19:30:53,609 INFO L226 Difference]: Without dead ends: 18322 [2021-11-07 19:30:53,637 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.17ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 19:30:53,639 INFO L933 BasicCegarLoop]: 15573 mSDtfsCounter, 8773 mSDsluCounter, 9054 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2271.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8773 SdHoareTripleChecker+Valid, 24627 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.81ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2433.72ms IncrementalHoareTripleChecker+Time [2021-11-07 19:30:53,640 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8773 Valid, 24627 Invalid, 31 Unknown, 0 Unchecked, 17.81ms Time], IncrementalHoareTripleChecker [8 Valid, 22 Invalid, 1 Unknown, 0 Unchecked, 2433.72ms Time] [2021-11-07 19:30:53,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18322 states. [2021-11-07 19:30:53,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18322 to 18282. [2021-11-07 19:30:53,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18282 states, 18272 states have (on average 1.3406852014010509) internal successors, (24497), 18281 states have internal predecessors, (24497), 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) [2021-11-07 19:30:54,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18282 states to 18282 states and 24497 transitions. [2021-11-07 19:30:54,015 INFO L78 Accepts]: Start accepts. Automaton has 18282 states and 24497 transitions. Word has length 153 [2021-11-07 19:30:54,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:30:54,016 INFO L470 AbstractCegarLoop]: Abstraction has 18282 states and 24497 transitions. [2021-11-07 19:30:54,016 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 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) [2021-11-07 19:30:54,016 INFO L276 IsEmpty]: Start isEmpty. Operand 18282 states and 24497 transitions. [2021-11-07 19:30:54,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-11-07 19:30:54,021 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:30:54,021 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 19:30:54,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 19:30:54,021 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 19:30:54,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:30:54,022 INFO L85 PathProgramCache]: Analyzing trace with hash 947510081, now seen corresponding path program 1 times [2021-11-07 19:30:54,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:30:54,023 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949244893] [2021-11-07 19:30:54,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:30:54,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:30:54,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:30:54,714 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 19:30:54,714 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:30:54,714 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949244893] [2021-11-07 19:30:54,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949244893] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:30:54,715 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:30:54,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-07 19:30:54,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637426884] [2021-11-07 19:30:54,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:30:54,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 19:30:54,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:30:54,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 19:30:54,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-07 19:30:54,716 INFO L87 Difference]: Start difference. First operand 18282 states and 24497 transitions. Second operand has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 6 states have internal predecessors, (163), 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) [2021-11-07 19:30:57,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:30:57,077 INFO L93 Difference]: Finished difference Result 83594 states and 112361 transitions. [2021-11-07 19:30:57,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 19:30:57,078 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 6 states have internal predecessors, (163), 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 163 [2021-11-07 19:30:57,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:30:57,403 INFO L225 Difference]: With dead ends: 83594 [2021-11-07 19:30:57,404 INFO L226 Difference]: Without dead ends: 67180 [2021-11-07 19:30:57,456 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 405.73ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-07 19:30:57,457 INFO L933 BasicCegarLoop]: 11226 mSDtfsCounter, 70065 mSDsluCounter, 71158 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 289.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 70065 SdHoareTripleChecker+Valid, 82384 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 126.04ms SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 306.46ms IncrementalHoareTripleChecker+Time [2021-11-07 19:30:57,458 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70065 Valid, 82384 Invalid, 73 Unknown, 0 Unchecked, 126.04ms Time], IncrementalHoareTripleChecker [17 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 306.46ms Time] [2021-11-07 19:30:57,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67180 states. [2021-11-07 19:30:58,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67180 to 18298. [2021-11-07 19:30:58,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18298 states, 18288 states have (on average 1.3403871391076116) internal successors, (24513), 18297 states have internal predecessors, (24513), 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) [2021-11-07 19:30:58,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18298 states to 18298 states and 24513 transitions. [2021-11-07 19:30:58,417 INFO L78 Accepts]: Start accepts. Automaton has 18298 states and 24513 transitions. Word has length 163 [2021-11-07 19:30:58,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:30:58,417 INFO L470 AbstractCegarLoop]: Abstraction has 18298 states and 24513 transitions. [2021-11-07 19:30:58,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 6 states have internal predecessors, (163), 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) [2021-11-07 19:30:58,417 INFO L276 IsEmpty]: Start isEmpty. Operand 18298 states and 24513 transitions. [2021-11-07 19:30:58,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-11-07 19:30:58,422 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:30:58,422 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 19:30:58,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 19:30:58,422 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 19:30:58,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:30:58,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1103473917, now seen corresponding path program 1 times [2021-11-07 19:30:58,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:30:58,423 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137003258] [2021-11-07 19:30:58,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:30:58,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:30:58,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:30:58,951 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 19:30:58,952 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:30:58,952 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137003258] [2021-11-07 19:30:58,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137003258] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:30:58,952 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:30:58,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 19:30:58,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091388174] [2021-11-07 19:30:58,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:30:58,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 19:30:58,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:30:58,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 19:30:58,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 19:30:58,953 INFO L87 Difference]: Start difference. First operand 18298 states and 24513 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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) [2021-11-07 19:31:01,179 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 19:31:02,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:31:02,348 INFO L93 Difference]: Finished difference Result 50728 states and 68220 transitions. [2021-11-07 19:31:02,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 19:31:02,349 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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 163 [2021-11-07 19:31:02,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:31:02,440 INFO L225 Difference]: With dead ends: 50728 [2021-11-07 19:31:02,440 INFO L226 Difference]: Without dead ends: 34298 [2021-11-07 19:31:02,471 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.04ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 19:31:02,472 INFO L933 BasicCegarLoop]: 11205 mSDtfsCounter, 8648 mSDsluCounter, 9027 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2644.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8648 SdHoareTripleChecker+Valid, 20232 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.94ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2780.81ms IncrementalHoareTripleChecker+Time [2021-11-07 19:31:02,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8648 Valid, 20232 Invalid, 80 Unknown, 0 Unchecked, 17.94ms Time], IncrementalHoareTripleChecker [15 Valid, 64 Invalid, 1 Unknown, 0 Unchecked, 2780.81ms Time] [2021-11-07 19:31:02,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34298 states. [2021-11-07 19:31:03,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34298 to 34284. [2021-11-07 19:31:03,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34284 states, 34274 states have (on average 1.3439633541459999) internal successors, (46063), 34283 states have internal predecessors, (46063), 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) [2021-11-07 19:31:03,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34284 states to 34284 states and 46063 transitions. [2021-11-07 19:31:03,373 INFO L78 Accepts]: Start accepts. Automaton has 34284 states and 46063 transitions. Word has length 163 [2021-11-07 19:31:03,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:31:03,374 INFO L470 AbstractCegarLoop]: Abstraction has 34284 states and 46063 transitions. [2021-11-07 19:31:03,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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) [2021-11-07 19:31:03,376 INFO L276 IsEmpty]: Start isEmpty. Operand 34284 states and 46063 transitions. [2021-11-07 19:31:03,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-11-07 19:31:03,381 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:31:03,381 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 19:31:03,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 19:31:03,381 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 19:31:03,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:31:03,382 INFO L85 PathProgramCache]: Analyzing trace with hash -2124542271, now seen corresponding path program 1 times [2021-11-07 19:31:03,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:31:03,386 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042280874] [2021-11-07 19:31:03,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:31:03,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:31:03,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:31:03,942 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 19:31:03,942 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:31:03,942 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042280874] [2021-11-07 19:31:03,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042280874] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:31:03,942 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:31:03,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 19:31:03,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582647329] [2021-11-07 19:31:03,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:31:03,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 19:31:03,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:31:03,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 19:31:03,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 19:31:03,943 INFO L87 Difference]: Start difference. First operand 34284 states and 46063 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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) [2021-11-07 19:31:06,165 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 19:31:07,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:31:07,669 INFO L93 Difference]: Finished difference Result 82704 states and 111328 transitions. [2021-11-07 19:31:07,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 19:31:07,670 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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 163 [2021-11-07 19:31:07,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:31:07,785 INFO L225 Difference]: With dead ends: 82704 [2021-11-07 19:31:07,785 INFO L226 Difference]: Without dead ends: 50288 [2021-11-07 19:31:07,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.32ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 19:31:07,846 INFO L933 BasicCegarLoop]: 17715 mSDtfsCounter, 8650 mSDsluCounter, 9026 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2543.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8650 SdHoareTripleChecker+Valid, 26741 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 17.34ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2718.64ms IncrementalHoareTripleChecker+Time [2021-11-07 19:31:07,847 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8650 Valid, 26741 Invalid, 82 Unknown, 0 Unchecked, 17.34ms Time], IncrementalHoareTripleChecker [16 Valid, 65 Invalid, 1 Unknown, 0 Unchecked, 2718.64ms Time] [2021-11-07 19:31:07,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50288 states. [2021-11-07 19:31:09,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50288 to 50223. [2021-11-07 19:31:09,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50223 states, 50213 states have (on average 1.3455877959890865) internal successors, (67566), 50222 states have internal predecessors, (67566), 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) [2021-11-07 19:31:09,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50223 states to 50223 states and 67566 transitions. [2021-11-07 19:31:09,291 INFO L78 Accepts]: Start accepts. Automaton has 50223 states and 67566 transitions. Word has length 163 [2021-11-07 19:31:09,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:31:09,292 INFO L470 AbstractCegarLoop]: Abstraction has 50223 states and 67566 transitions. [2021-11-07 19:31:09,292 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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) [2021-11-07 19:31:09,292 INFO L276 IsEmpty]: Start isEmpty. Operand 50223 states and 67566 transitions. [2021-11-07 19:31:09,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-11-07 19:31:09,305 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:31:09,306 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 19:31:09,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 19:31:09,306 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 19:31:09,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:31:09,306 INFO L85 PathProgramCache]: Analyzing trace with hash -184250868, now seen corresponding path program 1 times [2021-11-07 19:31:09,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:31:09,307 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519514202] [2021-11-07 19:31:09,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:31:09,307 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:31:09,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:31:10,300 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-11-07 19:31:10,301 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:31:10,301 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519514202] [2021-11-07 19:31:10,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519514202] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:31:10,301 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:31:10,301 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 19:31:10,301 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917092153] [2021-11-07 19:31:10,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:31:10,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 19:31:10,302 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:31:10,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 19:31:10,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 19:31:10,302 INFO L87 Difference]: Start difference. First operand 50223 states and 67566 transitions. Second operand has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 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) [2021-11-07 19:31:12,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:31:12,876 INFO L93 Difference]: Finished difference Result 146927 states and 197849 transitions. [2021-11-07 19:31:12,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 19:31:12,876 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 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 173 [2021-11-07 19:31:12,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:31:13,080 INFO L225 Difference]: With dead ends: 146927 [2021-11-07 19:31:13,080 INFO L226 Difference]: Without dead ends: 96820 [2021-11-07 19:31:13,153 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 85.98ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 19:31:13,154 INFO L933 BasicCegarLoop]: 9069 mSDtfsCounter, 8918 mSDsluCounter, 17847 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 444.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8918 SdHoareTripleChecker+Valid, 26916 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 100.53ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 496.53ms IncrementalHoareTripleChecker+Time [2021-11-07 19:31:13,154 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8918 Valid, 26916 Invalid, 62 Unknown, 0 Unchecked, 100.53ms Time], IncrementalHoareTripleChecker [16 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 496.53ms Time] [2021-11-07 19:31:13,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96820 states. [2021-11-07 19:31:15,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96820 to 96800. [2021-11-07 19:31:15,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96800 states, 96790 states have (on average 1.3465647277611323) internal successors, (130334), 96799 states have internal predecessors, (130334), 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) [2021-11-07 19:31:15,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96800 states to 96800 states and 130334 transitions. [2021-11-07 19:31:15,819 INFO L78 Accepts]: Start accepts. Automaton has 96800 states and 130334 transitions. Word has length 173 [2021-11-07 19:31:15,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:31:15,819 INFO L470 AbstractCegarLoop]: Abstraction has 96800 states and 130334 transitions. [2021-11-07 19:31:15,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 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) [2021-11-07 19:31:15,819 INFO L276 IsEmpty]: Start isEmpty. Operand 96800 states and 130334 transitions. [2021-11-07 19:31:15,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-11-07 19:31:15,845 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:31:15,845 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 19:31:15,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 19:31:15,846 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 19:31:15,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:31:15,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1032891876, now seen corresponding path program 1 times [2021-11-07 19:31:15,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:31:15,846 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279868425] [2021-11-07 19:31:15,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:31:15,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:31:16,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:31:16,446 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 19:31:16,446 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:31:16,447 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279868425] [2021-11-07 19:31:16,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279868425] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:31:16,447 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:31:16,447 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 19:31:16,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122641237] [2021-11-07 19:31:16,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:31:16,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 19:31:16,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:31:16,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 19:31:16,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 19:31:16,448 INFO L87 Difference]: Start difference. First operand 96800 states and 130334 transitions. Second operand has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 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) [2021-11-07 19:31:18,682 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 19:31:21,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:31:21,934 INFO L93 Difference]: Finished difference Result 211504 states and 284536 transitions. [2021-11-07 19:31:21,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 19:31:21,934 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 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 207 [2021-11-07 19:31:21,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:31:22,200 INFO L225 Difference]: With dead ends: 211504 [2021-11-07 19:31:22,200 INFO L226 Difference]: Without dead ends: 116572 [2021-11-07 19:31:22,307 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.43ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 19:31:22,307 INFO L933 BasicCegarLoop]: 11368 mSDtfsCounter, 4459 mSDsluCounter, 6867 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2493.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4459 SdHoareTripleChecker+Valid, 18235 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.62ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2678.33ms IncrementalHoareTripleChecker+Time [2021-11-07 19:31:22,307 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4459 Valid, 18235 Invalid, 62 Unknown, 0 Unchecked, 13.62ms Time], IncrementalHoareTripleChecker [10 Valid, 51 Invalid, 1 Unknown, 0 Unchecked, 2678.33ms Time] [2021-11-07 19:31:22,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116572 states. [2021-11-07 19:31:24,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116572 to 116494. [2021-11-07 19:31:25,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116494 states, 116484 states have (on average 1.3429226331513342) internal successors, (156429), 116493 states have internal predecessors, (156429), 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) [2021-11-07 19:31:25,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116494 states to 116494 states and 156429 transitions. [2021-11-07 19:31:25,274 INFO L78 Accepts]: Start accepts. Automaton has 116494 states and 156429 transitions. Word has length 207 [2021-11-07 19:31:25,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:31:25,275 INFO L470 AbstractCegarLoop]: Abstraction has 116494 states and 156429 transitions. [2021-11-07 19:31:25,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 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) [2021-11-07 19:31:25,275 INFO L276 IsEmpty]: Start isEmpty. Operand 116494 states and 156429 transitions. [2021-11-07 19:31:25,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-11-07 19:31:25,516 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:31:25,516 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 19:31:25,517 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-07 19:31:25,517 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-07 19:31:25,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:31:25,517 INFO L85 PathProgramCache]: Analyzing trace with hash -872159349, now seen corresponding path program 1 times [2021-11-07 19:31:25,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:31:25,518 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290804163] [2021-11-07 19:31:25,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:31:25,518 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:31:25,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:31:26,259 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-07 19:31:26,260 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:31:26,260 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290804163] [2021-11-07 19:31:26,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290804163] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:31:26,260 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:31:26,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 19:31:26,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466570006] [2021-11-07 19:31:26,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:31:26,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 19:31:26,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:31:26,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 19:31:26,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 19:31:26,261 INFO L87 Difference]: Start difference. First operand 116494 states and 156429 transitions. Second operand has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 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)