./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_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 5dfd7cb83fe5e8f1a1c790b3fb965075f4c8177484030f9001ac667825217333 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 17:21:59,235 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 17:21:59,236 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 17:21:59,284 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 17:21:59,285 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 17:21:59,289 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 17:21:59,290 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 17:21:59,295 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 17:21:59,297 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 17:21:59,298 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 17:21:59,298 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 17:21:59,300 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 17:21:59,301 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 17:21:59,306 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 17:21:59,308 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 17:21:59,309 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 17:21:59,314 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 17:21:59,315 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 17:21:59,317 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 17:21:59,320 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 17:21:59,324 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 17:21:59,325 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 17:21:59,325 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 17:21:59,327 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 17:21:59,329 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 17:21:59,330 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 17:21:59,330 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 17:21:59,331 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 17:21:59,332 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 17:21:59,332 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 17:21:59,332 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 17:21:59,333 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 17:21:59,334 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 17:21:59,335 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 17:21:59,336 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 17:21:59,337 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 17:21:59,337 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 17:21:59,338 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 17:21:59,338 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 17:21:59,338 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 17:21:59,339 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 17:21:59,340 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 17:21:59,373 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 17:21:59,373 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 17:21:59,373 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 17:21:59,374 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 17:21:59,375 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 17:21:59,375 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 17:21:59,375 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 17:21:59,375 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 17:21:59,376 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 17:21:59,376 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 17:21:59,376 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 17:21:59,377 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 17:21:59,377 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 17:21:59,377 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 17:21:59,377 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 17:21:59,377 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 17:21:59,378 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 17:21:59,378 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 17:21:59,378 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 17:21:59,378 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 17:21:59,378 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 17:21:59,378 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 17:21:59,379 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 17:21:59,379 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 17:21:59,379 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 17:21:59,379 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 17:21:59,379 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 17:21:59,380 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 17:21:59,380 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 17:21:59,380 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5dfd7cb83fe5e8f1a1c790b3fb965075f4c8177484030f9001ac667825217333 [2021-11-07 17:21:59,706 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 17:21:59,732 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 17:21:59,734 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 17:21:59,735 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 17:21:59,736 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 17:21:59,738 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i [2021-11-07 17:21:59,800 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adb053a96/1ae21b975bcb4145af3252a0bea9e052/FLAG224112573 [2021-11-07 17:22:00,827 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 17:22:00,828 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i [2021-11-07 17:22:00,928 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adb053a96/1ae21b975bcb4145af3252a0bea9e052/FLAG224112573 [2021-11-07 17:22:01,130 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adb053a96/1ae21b975bcb4145af3252a0bea9e052 [2021-11-07 17:22:01,133 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 17:22:01,135 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 17:22:01,138 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 17:22:01,138 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 17:22:01,145 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 17:22:01,146 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:22:01" (1/1) ... [2021-11-07 17:22:01,148 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3986aa6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:22:01, skipping insertion in model container [2021-11-07 17:22:01,148 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:22:01" (1/1) ... [2021-11-07 17:22:01,154 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 17:22:01,340 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 17:22:07,184 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i[622320,622333] [2021-11-07 17:22:07,189 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i[622489,622502] [2021-11-07 17:22:07,190 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i[622656,622669] [2021-11-07 17:22:07,191 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i[622824,622837] [2021-11-07 17:22:07,231 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 17:22:07,354 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 17:22:08,110 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i[622320,622333] [2021-11-07 17:22:08,111 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i[622489,622502] [2021-11-07 17:22:08,111 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i[622656,622669] [2021-11-07 17:22:08,112 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i[622824,622837] [2021-11-07 17:22:08,117 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 17:22:08,387 INFO L208 MainTranslator]: Completed translation [2021-11-07 17:22:08,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:22:08 WrapperNode [2021-11-07 17:22:08,388 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 17:22:08,389 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 17:22:08,389 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 17:22:08,389 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 17:22:08,397 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:22:08" (1/1) ... [2021-11-07 17:22:08,657 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:22:08" (1/1) ... [2021-11-07 17:22:10,004 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 17:22:10,005 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 17:22:10,005 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 17:22:10,006 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 17:22:10,015 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:22:08" (1/1) ... [2021-11-07 17:22:10,015 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:22:08" (1/1) ... [2021-11-07 17:22:10,322 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:22:08" (1/1) ... [2021-11-07 17:22:10,323 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:22:08" (1/1) ... [2021-11-07 17:22:10,821 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:22:08" (1/1) ... [2021-11-07 17:22:11,257 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:22:08" (1/1) ... [2021-11-07 17:22:11,342 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:22:08" (1/1) ... [2021-11-07 17:22:11,544 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 17:22:11,546 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 17:22:11,547 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 17:22:11,547 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 17:22:11,549 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:22:08" (1/1) ... [2021-11-07 17:22:11,558 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 17:22:11,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 17:22:11,602 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 17:22:11,619 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 17:22:11,652 INFO L130 BoogieDeclarations]: Found specification of procedure __put_user_bad [2021-11-07 17:22:11,652 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-07 17:22:11,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 17:22:11,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 17:22:11,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 17:22:11,653 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 17:22:11,653 INFO L130 BoogieDeclarations]: Found specification of procedure __get_user_bad [2021-11-07 17:22:11,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 17:22:11,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 17:22:11,654 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-07 17:22:11,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 17:22:11,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 17:22:11,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 17:22:11,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 17:22:11,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 17:22:11,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 17:22:11,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 17:22:11,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 17:22:11,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 17:26:47,551 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-07 17:26:47,552 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11661-1: __copy_from_user_nocheck_#t~ret1203 := copy_user_generic_#res;__copy_from_user_nocheck_~tmp___2~10 := __copy_from_user_nocheck_#t~ret1203;havoc __copy_from_user_nocheck_#t~ret1203;__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 17:26:47,552 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11661-3: __copy_from_user_nocheck_#t~ret1203 := copy_user_generic_#res;__copy_from_user_nocheck_~tmp___2~10 := __copy_from_user_nocheck_#t~ret1203;havoc __copy_from_user_nocheck_#t~ret1203;__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 17:26:47,552 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11661-5: __copy_to_user_nocheck_#t~ret1208 := copy_user_generic_#res;__copy_to_user_nocheck_~tmp___2~11 := __copy_to_user_nocheck_#t~ret1208;havoc __copy_to_user_nocheck_#t~ret1208;__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 17:26:47,552 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11661-7: __copy_to_user_nocheck_#t~ret1208 := copy_user_generic_#res;__copy_to_user_nocheck_~tmp___2~11 := __copy_to_user_nocheck_#t~ret1208;havoc __copy_to_user_nocheck_#t~ret1208;__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 17:26:47,552 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-07 17:26:47,553 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11680: __copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-07 17:26:47,553 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11680-1: __copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-07 17:26:47,553 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11683-1: assume 2 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-07 17:26:47,553 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11683-1: assume !(2 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-07 17:26:47,553 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11683: assume 2 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-07 17:26:47,553 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11683: assume !(2 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-07 17:26:47,554 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11684: __copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-07 17:26:47,554 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11684-1: __copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-07 17:26:47,554 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11687-1: assume 4 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-07 17:26:47,554 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11687-1: assume !(4 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-07 17:26:47,554 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11687: assume 4 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-07 17:26:47,554 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11687: assume !(4 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-07 17:26:47,554 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11688: __copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-07 17:26:47,555 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11688-1: __copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-07 17:26:47,555 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11691-1: assume 8 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-07 17:26:47,555 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11691-1: assume !(8 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-07 17:26:47,555 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11691: assume 8 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-07 17:26:47,555 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11691: assume !(8 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-07 17:26:47,555 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11692: __copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-07 17:26:47,555 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11692-1: __copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-07 17:26:47,556 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11695-1: assume 10 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-07 17:26:47,556 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11695-1: assume !(10 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-07 17:26:47,556 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11695: assume 10 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-07 17:26:47,556 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11695: assume !(10 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-07 17:26:47,556 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11696: 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 17:26:47,556 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11696-1: 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 17:26:47,557 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11699-1: assume 16 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-07 17:26:47,557 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11699-1: assume !(16 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-07 17:26:47,557 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11699: assume 16 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-07 17:26:47,557 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11699: assume !(16 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-07 17:26:47,557 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11700: 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 17:26:47,557 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11700-1: 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 17:26:47,558 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11703-1: 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 17:26:47,558 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11703: 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 17:26:47,558 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11731-1: assume 0 != __copy_from_user_nocheck_~tmp___0~23;__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-07 17:26:47,558 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11731-1: assume !(0 != __copy_from_user_nocheck_~tmp___0~23);__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-07 17:26:47,558 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11731: assume 0 != __copy_from_user_nocheck_~tmp___0~23;__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-07 17:26:47,559 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11731: assume !(0 != __copy_from_user_nocheck_~tmp___0~23);__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-07 17:26:47,559 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11746: assume 0 != __copy_from_user_nocheck_~tmp___1~13;__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-07 17:26:47,559 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11746: assume !(0 != __copy_from_user_nocheck_~tmp___1~13);__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-07 17:26:47,559 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11746-1: assume 0 != __copy_from_user_nocheck_~tmp___1~13;__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-07 17:26:47,559 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11746-1: assume !(0 != __copy_from_user_nocheck_~tmp___1~13);__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-07 17:26:47,559 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11789-1: __copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-07 17:26:47,560 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11789: __copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-07 17:26:47,560 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11792: assume 2 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-07 17:26:47,560 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11792: assume !(2 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-07 17:26:47,560 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11792-1: assume 2 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-07 17:26:47,560 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11792-1: assume !(2 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-07 17:26:47,560 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11793-1: __copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-07 17:26:47,561 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11793: __copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-07 17:26:47,561 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11796: assume 4 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-07 17:26:47,561 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11796: assume !(4 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-07 17:26:47,561 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11796-1: assume 4 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-07 17:26:47,561 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11796-1: assume !(4 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-07 17:26:47,561 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11797-1: __copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-07 17:26:47,562 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11797: __copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-07 17:26:47,562 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11800: assume 8 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-07 17:26:47,562 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11800: assume !(8 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-07 17:26:47,562 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11800-1: assume 8 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-07 17:26:47,562 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11800-1: assume !(8 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-07 17:26:47,562 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11801-1: __copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-07 17:26:47,562 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11801: __copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-07 17:26:47,563 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11804: assume 10 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-07 17:26:47,563 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11804: assume !(10 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-07 17:26:47,563 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11804-1: assume 10 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-07 17:26:47,563 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11804-1: assume !(10 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-07 17:26:47,563 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11805-1: 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 17:26:47,563 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11805: 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 17:26:47,564 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-07 17:26:47,564 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11808: assume 16 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-07 17:26:47,564 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11808: assume !(16 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-07 17:26:47,564 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11808-1: assume 16 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-07 17:26:47,564 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11808-1: assume !(16 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-07 17:26:47,564 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11809-1: 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 17:26:47,565 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11809: 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 17:26:47,565 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11812: 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 17:26:47,565 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11812-1: 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 17:26:47,565 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11835-1: assume 0 != __copy_to_user_nocheck_~tmp___0~24;__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-07 17:26:47,565 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11835-1: assume !(0 != __copy_to_user_nocheck_~tmp___0~24);__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-07 17:26:47,566 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11835: assume 0 != __copy_to_user_nocheck_~tmp___0~24;__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-07 17:26:47,566 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11835: assume !(0 != __copy_to_user_nocheck_~tmp___0~24);__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-07 17:26:47,566 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11849-1: assume 0 != __copy_to_user_nocheck_~tmp___1~14;__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-07 17:26:47,566 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11849-1: assume !(0 != __copy_to_user_nocheck_~tmp___1~14);__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-07 17:26:47,566 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11849: assume 0 != __copy_to_user_nocheck_~tmp___1~14;__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-07 17:26:47,566 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11849: assume !(0 != __copy_to_user_nocheck_~tmp___1~14);__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-07 17:26:47,567 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-07 17:26:47,567 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break: ldv_switch_4_#res := 0; [2021-11-07 17:26:47,568 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break: ldv_switch_3_#res := 0; [2021-11-07 17:26:47,568 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6501: assume 1 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-07 17:26:47,569 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6502: assume !(1 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-07 17:26:47,569 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6451: assume !(1 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-07 17:26:47,569 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6450: assume 1 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-07 17:26:47,569 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6347: assume 1 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-07 17:26:47,569 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6348: assume !(1 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-07 17:26:47,570 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6264: assume 1 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-07 17:26:47,570 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6265: assume !(1 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-07 17:26:47,571 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L20828-6: __copy_from_user_nocheck_#t~ret1202 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret1202 && __copy_from_user_nocheck_#t~ret1202 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___1~13 := __copy_from_user_nocheck_#t~ret1202;havoc __copy_from_user_nocheck_#t~ret1202; [2021-11-07 17:26:47,571 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L20828-5: __copy_from_user_nocheck_#t~ret1201 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret1201 && __copy_from_user_nocheck_#t~ret1201 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___0~23 := __copy_from_user_nocheck_#t~ret1201;havoc __copy_from_user_nocheck_#t~ret1201; [2021-11-07 17:26:47,571 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L20828-10: __copy_from_user_nocheck_#t~ret1202 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret1202 && __copy_from_user_nocheck_#t~ret1202 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___1~13 := __copy_from_user_nocheck_#t~ret1202;havoc __copy_from_user_nocheck_#t~ret1202; [2021-11-07 17:26:47,571 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L20828-9: __copy_from_user_nocheck_#t~ret1201 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret1201 && __copy_from_user_nocheck_#t~ret1201 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___0~23 := __copy_from_user_nocheck_#t~ret1201;havoc __copy_from_user_nocheck_#t~ret1201; [2021-11-07 17:26:47,571 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L20828-14: __copy_to_user_nocheck_#t~ret1207 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret1207 && __copy_to_user_nocheck_#t~ret1207 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___1~14 := __copy_to_user_nocheck_#t~ret1207;havoc __copy_to_user_nocheck_#t~ret1207; [2021-11-07 17:26:47,572 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L20828-13: __copy_to_user_nocheck_#t~ret1206 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret1206 && __copy_to_user_nocheck_#t~ret1206 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___0~24 := __copy_to_user_nocheck_#t~ret1206;havoc __copy_to_user_nocheck_#t~ret1206; [2021-11-07 17:26:47,572 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L20828-16: __copy_to_user_nocheck_#t~ret1206 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret1206 && __copy_to_user_nocheck_#t~ret1206 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___0~24 := __copy_to_user_nocheck_#t~ret1206;havoc __copy_to_user_nocheck_#t~ret1206; [2021-11-07 17:26:47,572 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L20828-17: __copy_to_user_nocheck_#t~ret1207 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret1207 && __copy_to_user_nocheck_#t~ret1207 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___1~14 := __copy_to_user_nocheck_#t~ret1207;havoc __copy_to_user_nocheck_#t~ret1207; [2021-11-07 17:26:47,572 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-07 17:26:47,573 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-07 17:26:47,608 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 17:26:47,608 INFO L299 CfgBuilder]: Removed 6259 assume(true) statements. [2021-11-07 17:26:47,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:26:47 BoogieIcfgContainer [2021-11-07 17:26:47,617 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 17:26:47,618 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 17:26:47,618 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 17:26:47,621 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 17:26:47,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 05:22:01" (1/3) ... [2021-11-07 17:26:47,622 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55a48d0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:26:47, skipping insertion in model container [2021-11-07 17:26:47,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:22:08" (2/3) ... [2021-11-07 17:26:47,623 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55a48d0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:26:47, skipping insertion in model container [2021-11-07 17:26:47,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:26:47" (3/3) ... [2021-11-07 17:26:47,624 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i [2021-11-07 17:26:47,628 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 17:26:47,628 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 77 error locations. [2021-11-07 17:26:47,702 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 17:26:47,707 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 17:26:47,708 INFO L340 AbstractCegarLoop]: Starting to check reachability of 77 error locations. [2021-11-07 17:26:47,809 INFO L276 IsEmpty]: Start isEmpty. Operand has 7565 states, 7488 states have (on average 1.3863514957264957) internal successors, (10381), 7564 states have internal predecessors, (10381), 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 17:26:47,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-07 17:26:47,839 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:26:47,839 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 17:26:47,840 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 74 more)] === [2021-11-07 17:26:47,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:26:47,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1897720244, now seen corresponding path program 1 times [2021-11-07 17:26:47,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:26:47,853 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748778845] [2021-11-07 17:26:47,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:26:47,853 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:26:48,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:26:49,190 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 17:26:49,191 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:26:49,191 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748778845] [2021-11-07 17:26:49,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748778845] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:26:49,192 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:26:49,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:26:49,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987173339] [2021-11-07 17:26:49,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:26:49,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:26:49,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:26:49,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:26:49,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:26:49,245 INFO L87 Difference]: Start difference. First operand has 7565 states, 7488 states have (on average 1.3863514957264957) internal successors, (10381), 7564 states have internal predecessors, (10381), 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 17:26:51,510 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 17:26:52,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:26:52,556 INFO L93 Difference]: Finished difference Result 21782 states and 29973 transitions. [2021-11-07 17:26:52,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:26:52,559 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 17:26:52,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:26:52,641 INFO L225 Difference]: With dead ends: 21782 [2021-11-07 17:26:52,641 INFO L226 Difference]: Without dead ends: 13849 [2021-11-07 17:26:52,670 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.18ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:26:52,674 INFO L933 BasicCegarLoop]: 10212 mSDtfsCounter, 9580 mSDsluCounter, 10113 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2614.28ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9580 SdHoareTripleChecker+Valid, 20325 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 52.58ms SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2789.69ms IncrementalHoareTripleChecker+Time [2021-11-07 17:26:52,675 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9580 Valid, 20325 Invalid, 84 Unknown, 0 Unchecked, 52.58ms Time], IncrementalHoareTripleChecker [17 Valid, 66 Invalid, 1 Unknown, 0 Unchecked, 2789.69ms Time] [2021-11-07 17:26:52,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13849 states. [2021-11-07 17:26:53,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13849 to 13749. [2021-11-07 17:26:53,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13749 states, 13672 states have (on average 1.3410620245757754) internal successors, (18335), 13748 states have internal predecessors, (18335), 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 17:26:53,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13749 states to 13749 states and 18335 transitions. [2021-11-07 17:26:53,126 INFO L78 Accepts]: Start accepts. Automaton has 13749 states and 18335 transitions. Word has length 112 [2021-11-07 17:26:53,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:26:53,127 INFO L470 AbstractCegarLoop]: Abstraction has 13749 states and 18335 transitions. [2021-11-07 17:26:53,128 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 17:26:53,129 INFO L276 IsEmpty]: Start isEmpty. Operand 13749 states and 18335 transitions. [2021-11-07 17:26:53,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-07 17:26:53,131 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:26:53,131 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] [2021-11-07 17:26:53,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 17:26:53,133 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 74 more)] === [2021-11-07 17:26:53,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:26:53,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1044275798, now seen corresponding path program 1 times [2021-11-07 17:26:53,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:26:53,134 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375222265] [2021-11-07 17:26:53,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:26:53,135 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:26:53,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:26:54,284 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 17:26:54,284 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:26:54,285 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375222265] [2021-11-07 17:26:54,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375222265] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:26:54,285 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:26:54,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 17:26:54,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902015014] [2021-11-07 17:26:54,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:26:54,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 17:26:54,286 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:26:54,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 17:26:54,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:26:54,287 INFO L87 Difference]: Start difference. First operand 13749 states and 18335 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 states have internal predecessors, (113), 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 17:26:56,547 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 17:26:57,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:26:57,993 INFO L93 Difference]: Finished difference Result 40567 states and 54115 transitions. [2021-11-07 17:26:57,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 17:26:57,994 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 states have internal predecessors, (113), 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 113 [2021-11-07 17:26:57,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:26:58,116 INFO L225 Difference]: With dead ends: 40567 [2021-11-07 17:26:58,116 INFO L226 Difference]: Without dead ends: 27070 [2021-11-07 17:26:58,155 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 93.87ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-07 17:26:58,156 INFO L933 BasicCegarLoop]: 9429 mSDtfsCounter, 36164 mSDsluCounter, 18451 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 29 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2650.07ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 36164 SdHoareTripleChecker+Valid, 27880 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 69.16ms SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2845.21ms IncrementalHoareTripleChecker+Time [2021-11-07 17:26:58,157 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36164 Valid, 27880 Invalid, 103 Unknown, 0 Unchecked, 69.16ms Time], IncrementalHoareTripleChecker [29 Valid, 73 Invalid, 1 Unknown, 0 Unchecked, 2845.21ms Time] [2021-11-07 17:26:58,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27070 states. [2021-11-07 17:26:58,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27070 to 26621. [2021-11-07 17:26:58,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26621 states, 26544 states have (on average 1.3448236889692586) internal successors, (35697), 26620 states have internal predecessors, (35697), 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 17:26:58,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26621 states to 26621 states and 35697 transitions. [2021-11-07 17:26:58,952 INFO L78 Accepts]: Start accepts. Automaton has 26621 states and 35697 transitions. Word has length 113 [2021-11-07 17:26:58,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:26:58,954 INFO L470 AbstractCegarLoop]: Abstraction has 26621 states and 35697 transitions. [2021-11-07 17:26:58,954 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 states have internal predecessors, (113), 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 17:26:58,955 INFO L276 IsEmpty]: Start isEmpty. Operand 26621 states and 35697 transitions. [2021-11-07 17:26:58,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-07 17:26:58,958 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:26:58,959 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] [2021-11-07 17:26:58,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 17:26:58,960 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 74 more)] === [2021-11-07 17:26:58,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:26:58,963 INFO L85 PathProgramCache]: Analyzing trace with hash 218969881, now seen corresponding path program 1 times [2021-11-07 17:26:58,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:26:58,963 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705014569] [2021-11-07 17:26:58,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:26:58,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:26:59,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:26:59,712 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 17:26:59,712 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:26:59,712 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705014569] [2021-11-07 17:26:59,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705014569] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:26:59,713 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:26:59,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:26:59,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575868254] [2021-11-07 17:26:59,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:26:59,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:26:59,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:26:59,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:26:59,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:26:59,714 INFO L87 Difference]: Start difference. First operand 26621 states and 35697 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 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 17:27:01,968 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 17:27:02,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:27:02,992 INFO L93 Difference]: Finished difference Result 59595 states and 79833 transitions. [2021-11-07 17:27:02,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:27:02,993 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 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 121 [2021-11-07 17:27:02,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:27:03,093 INFO L225 Difference]: With dead ends: 59595 [2021-11-07 17:27:03,094 INFO L226 Difference]: Without dead ends: 33226 [2021-11-07 17:27:03,151 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.77ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:27:03,155 INFO L933 BasicCegarLoop]: 9444 mSDtfsCounter, 2444 mSDsluCounter, 9415 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2484.21ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2444 SdHoareTripleChecker+Valid, 18859 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 23.23ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2692.80ms IncrementalHoareTripleChecker+Time [2021-11-07 17:27:03,157 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2444 Valid, 18859 Invalid, 64 Unknown, 0 Unchecked, 23.23ms Time], IncrementalHoareTripleChecker [16 Valid, 47 Invalid, 1 Unknown, 0 Unchecked, 2692.80ms Time] [2021-11-07 17:27:03,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33226 states. [2021-11-07 17:27:03,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33226 to 33058. [2021-11-07 17:27:03,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33058 states, 32981 states have (on average 1.3407113186380037) internal successors, (44218), 33057 states have internal predecessors, (44218), 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 17:27:03,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33058 states to 33058 states and 44218 transitions. [2021-11-07 17:27:03,993 INFO L78 Accepts]: Start accepts. Automaton has 33058 states and 44218 transitions. Word has length 121 [2021-11-07 17:27:03,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:27:03,995 INFO L470 AbstractCegarLoop]: Abstraction has 33058 states and 44218 transitions. [2021-11-07 17:27:03,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 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 17:27:03,995 INFO L276 IsEmpty]: Start isEmpty. Operand 33058 states and 44218 transitions. [2021-11-07 17:27:03,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-07 17:27:03,999 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:27:03,999 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] [2021-11-07 17:27:03,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 17:27:03,999 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr71ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 74 more)] === [2021-11-07 17:27:04,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:27:04,000 INFO L85 PathProgramCache]: Analyzing trace with hash -575759583, now seen corresponding path program 1 times [2021-11-07 17:27:04,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:27:04,002 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23031867] [2021-11-07 17:27:04,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:27:04,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:27:04,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:27:05,090 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 17:27:05,090 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:27:05,091 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23031867] [2021-11-07 17:27:05,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23031867] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:27:05,091 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:27:05,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:27:05,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408567188] [2021-11-07 17:27:05,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:27:05,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:27:05,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:27:05,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:27:05,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:27:05,092 INFO L87 Difference]: Start difference. First operand 33058 states and 44218 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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 17:27:07,346 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 17:27:08,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:27:08,656 INFO L93 Difference]: Finished difference Result 84853 states and 113994 transitions. [2021-11-07 17:27:08,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:27:08,657 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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 127 [2021-11-07 17:27:08,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:27:08,818 INFO L225 Difference]: With dead ends: 84853 [2021-11-07 17:27:08,819 INFO L226 Difference]: Without dead ends: 52047 [2021-11-07 17:27:08,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.44ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:27:08,880 INFO L933 BasicCegarLoop]: 9445 mSDtfsCounter, 8215 mSDsluCounter, 9397 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2604.27ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8215 SdHoareTripleChecker+Valid, 18842 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.90ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2801.13ms IncrementalHoareTripleChecker+Time [2021-11-07 17:27:08,881 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8215 Valid, 18842 Invalid, 80 Unknown, 0 Unchecked, 18.90ms Time], IncrementalHoareTripleChecker [13 Valid, 66 Invalid, 1 Unknown, 0 Unchecked, 2801.13ms Time] [2021-11-07 17:27:08,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52047 states. [2021-11-07 17:27:10,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52047 to 51799. [2021-11-07 17:27:10,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51799 states, 51722 states have (on average 1.3490584277483468) internal successors, (69776), 51798 states have internal predecessors, (69776), 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 17:27:10,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51799 states to 51799 states and 69776 transitions. [2021-11-07 17:27:10,323 INFO L78 Accepts]: Start accepts. Automaton has 51799 states and 69776 transitions. Word has length 127 [2021-11-07 17:27:10,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:27:10,324 INFO L470 AbstractCegarLoop]: Abstraction has 51799 states and 69776 transitions. [2021-11-07 17:27:10,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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 17:27:10,324 INFO L276 IsEmpty]: Start isEmpty. Operand 51799 states and 69776 transitions. [2021-11-07 17:27:10,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-07 17:27:10,327 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:27:10,328 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] [2021-11-07 17:27:10,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 17:27:10,328 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 74 more)] === [2021-11-07 17:27:10,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:27:10,329 INFO L85 PathProgramCache]: Analyzing trace with hash -439640669, now seen corresponding path program 1 times [2021-11-07 17:27:10,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:27:10,329 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783493151] [2021-11-07 17:27:10,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:27:10,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:27:10,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:27:11,136 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 17:27:11,136 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:27:11,136 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783493151] [2021-11-07 17:27:11,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783493151] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:27:11,137 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:27:11,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:27:11,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333323268] [2021-11-07 17:27:11,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:27:11,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:27:11,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:27:11,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:27:11,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:27:11,138 INFO L87 Difference]: Start difference. First operand 51799 states and 69776 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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 17:27:13,400 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 17:27:14,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:27:14,926 INFO L93 Difference]: Finished difference Result 142601 states and 192109 transitions. [2021-11-07 17:27:14,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:27:14,927 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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 138 [2021-11-07 17:27:14,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:27:15,288 INFO L225 Difference]: With dead ends: 142601 [2021-11-07 17:27:15,288 INFO L226 Difference]: Without dead ends: 91054 [2021-11-07 17:27:15,374 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.68ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:27:15,377 INFO L933 BasicCegarLoop]: 16160 mSDtfsCounter, 9147 mSDsluCounter, 9364 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2371.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9147 SdHoareTripleChecker+Valid, 25524 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.27ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2508.19ms IncrementalHoareTripleChecker+Time [2021-11-07 17:27:15,378 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9147 Valid, 25524 Invalid, 31 Unknown, 0 Unchecked, 18.27ms Time], IncrementalHoareTripleChecker [8 Valid, 22 Invalid, 1 Unknown, 0 Unchecked, 2508.19ms Time] [2021-11-07 17:27:15,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91054 states. [2021-11-07 17:27:17,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91054 to 90856. [2021-11-07 17:27:17,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90856 states, 90779 states have (on average 1.3486599323632118) internal successors, (122430), 90855 states have internal predecessors, (122430), 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 17:27:17,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90856 states to 90856 states and 122430 transitions. [2021-11-07 17:27:17,904 INFO L78 Accepts]: Start accepts. Automaton has 90856 states and 122430 transitions. Word has length 138 [2021-11-07 17:27:17,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:27:17,910 INFO L470 AbstractCegarLoop]: Abstraction has 90856 states and 122430 transitions. [2021-11-07 17:27:17,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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 17:27:17,910 INFO L276 IsEmpty]: Start isEmpty. Operand 90856 states and 122430 transitions. [2021-11-07 17:27:17,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-11-07 17:27:17,915 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:27:17,915 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 17:27:17,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 17:27:17,916 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 74 more)] === [2021-11-07 17:27:17,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:27:17,917 INFO L85 PathProgramCache]: Analyzing trace with hash -140027583, now seen corresponding path program 1 times [2021-11-07 17:27:17,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:27:17,921 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647262015] [2021-11-07 17:27:17,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:27:17,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:27:18,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:27:18,537 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 17:27:18,538 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:27:18,538 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647262015] [2021-11-07 17:27:18,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647262015] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:27:18,538 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:27:18,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:27:18,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128884954] [2021-11-07 17:27:18,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:27:18,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:27:18,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:27:18,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:27:18,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:27:18,540 INFO L87 Difference]: Start difference. First operand 90856 states and 122430 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 17:27:20,791 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 17:27:24,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:27:24,228 INFO L93 Difference]: Finished difference Result 268312 states and 362145 transitions. [2021-11-07 17:27:24,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:27:24,228 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 17:27:24,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:27:24,634 INFO L225 Difference]: With dead ends: 268312 [2021-11-07 17:27:24,634 INFO L226 Difference]: Without dead ends: 178476 [2021-11-07 17:27:24,789 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.47ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:27:24,790 INFO L933 BasicCegarLoop]: 11644 mSDtfsCounter, 8926 mSDsluCounter, 9401 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2742.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8926 SdHoareTripleChecker+Valid, 21045 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 19.09ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2892.86ms IncrementalHoareTripleChecker+Time [2021-11-07 17:27:24,790 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8926 Valid, 21045 Invalid, 80 Unknown, 0 Unchecked, 19.09ms Time], IncrementalHoareTripleChecker [15 Valid, 64 Invalid, 1 Unknown, 0 Unchecked, 2892.86ms Time] [2021-11-07 17:27:25,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178476 states. [2021-11-07 17:27:28,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178476 to 178376. [2021-11-07 17:27:28,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178376 states, 178299 states have (on average 1.349631798271443) internal successors, (240638), 178375 states have internal predecessors, (240638), 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 17:27:29,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178376 states to 178376 states and 240638 transitions. [2021-11-07 17:27:29,366 INFO L78 Accepts]: Start accepts. Automaton has 178376 states and 240638 transitions. Word has length 163 [2021-11-07 17:27:29,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 17:27:29,366 INFO L470 AbstractCegarLoop]: Abstraction has 178376 states and 240638 transitions. [2021-11-07 17:27:29,366 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 17:27:29,367 INFO L276 IsEmpty]: Start isEmpty. Operand 178376 states and 240638 transitions. [2021-11-07 17:27:29,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-11-07 17:27:29,371 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 17:27:29,372 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 17:27:29,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 17:27:29,372 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 74 more)] === [2021-11-07 17:27:29,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 17:27:29,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1161095937, now seen corresponding path program 1 times [2021-11-07 17:27:29,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 17:27:29,373 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642980213] [2021-11-07 17:27:29,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 17:27:29,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 17:27:29,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 17:27:30,023 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 17:27:30,024 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 17:27:30,024 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642980213] [2021-11-07 17:27:30,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642980213] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 17:27:30,024 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 17:27:30,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 17:27:30,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276176050] [2021-11-07 17:27:30,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 17:27:30,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 17:27:30,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 17:27:30,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 17:27:30,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:27:30,026 INFO L87 Difference]: Start difference. First operand 178376 states and 240638 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 17:27:32,229 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-07 17:27:37,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 17:27:37,923 INFO L93 Difference]: Finished difference Result 443376 states and 598609 transitions. [2021-11-07 17:27:37,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 17:27:37,926 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 17:27:37,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 17:27:38,632 INFO L225 Difference]: With dead ends: 443376 [2021-11-07 17:27:38,633 INFO L226 Difference]: Without dead ends: 266020 [2021-11-07 17:27:38,909 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.15ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 17:27:38,910 INFO L933 BasicCegarLoop]: 18367 mSDtfsCounter, 8960 mSDsluCounter, 9368 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2498.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8960 SdHoareTripleChecker+Valid, 27735 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.42ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2674.62ms IncrementalHoareTripleChecker+Time [2021-11-07 17:27:38,910 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8960 Valid, 27735 Invalid, 82 Unknown, 0 Unchecked, 20.42ms Time], IncrementalHoareTripleChecker [16 Valid, 65 Invalid, 1 Unknown, 0 Unchecked, 2674.62ms Time] [2021-11-07 17:27:39,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266020 states.