./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e91317f289ae08033f6458d219d3b71fd8a7791b2777f777b60194968c497219 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-18 15:09:21,429 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 15:09:21,432 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 15:09:21,487 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 15:09:21,488 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 15:09:21,489 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 15:09:21,490 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 15:09:21,491 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 15:09:21,492 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 15:09:21,493 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 15:09:21,494 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 15:09:21,494 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 15:09:21,495 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 15:09:21,495 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 15:09:21,496 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 15:09:21,497 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 15:09:21,497 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 15:09:21,498 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 15:09:21,499 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 15:09:21,500 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 15:09:21,501 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 15:09:21,502 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 15:09:21,503 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 15:09:21,503 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 15:09:21,505 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 15:09:21,505 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 15:09:21,505 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 15:09:21,506 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 15:09:21,506 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 15:09:21,507 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 15:09:21,507 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 15:09:21,508 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 15:09:21,511 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 15:09:21,512 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 15:09:21,513 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 15:09:21,513 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 15:09:21,514 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 15:09:21,514 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 15:09:21,514 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 15:09:21,515 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 15:09:21,516 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 15:09:21,517 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-18 15:09:21,537 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 15:09:21,539 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 15:09:21,540 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 15:09:21,540 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 15:09:21,540 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 15:09:21,541 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 15:09:21,541 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 15:09:21,541 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 15:09:21,541 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 15:09:21,541 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 15:09:21,542 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 15:09:21,542 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 15:09:21,542 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 15:09:21,543 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 15:09:21,543 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 15:09:21,543 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 15:09:21,543 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 15:09:21,543 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 15:09:21,543 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 15:09:21,543 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 15:09:21,544 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 15:09:21,544 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 15:09:21,544 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 15:09:21,544 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 15:09:21,544 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 15:09:21,545 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 15:09:21,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 15:09:21,545 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 15:09:21,545 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 15:09:21,545 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 15:09:21,545 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 15:09:21,545 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e91317f289ae08033f6458d219d3b71fd8a7791b2777f777b60194968c497219 [2021-12-18 15:09:21,757 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 15:09:21,781 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 15:09:21,783 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 15:09:21,783 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 15:09:21,784 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 15:09:21,785 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i [2021-12-18 15:09:21,835 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce9d84f3c/05177b5d17ea43778dedb99a78b92e26/FLAGc649a9a7a [2021-12-18 15:09:22,608 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 15:09:22,609 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i [2021-12-18 15:09:22,663 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce9d84f3c/05177b5d17ea43778dedb99a78b92e26/FLAGc649a9a7a [2021-12-18 15:09:23,109 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce9d84f3c/05177b5d17ea43778dedb99a78b92e26 [2021-12-18 15:09:23,112 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 15:09:23,112 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 15:09:23,113 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 15:09:23,113 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 15:09:23,117 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 15:09:23,118 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 03:09:23" (1/1) ... [2021-12-18 15:09:23,119 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@215b4135 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:09:23, skipping insertion in model container [2021-12-18 15:09:23,119 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 03:09:23" (1/1) ... [2021-12-18 15:09:23,124 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 15:09:23,249 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 15:09:27,547 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i[580326,580339] [2021-12-18 15:09:27,549 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i[580473,580486] [2021-12-18 15:09:27,551 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i[580612,580625] [2021-12-18 15:09:27,551 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i[580770,580783] [2021-12-18 15:09:27,590 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 15:09:27,653 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 15:09:28,192 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i[580326,580339] [2021-12-18 15:09:28,193 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i[580473,580486] [2021-12-18 15:09:28,193 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i[580612,580625] [2021-12-18 15:09:28,194 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i[580770,580783] [2021-12-18 15:09:28,199 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 15:09:28,379 INFO L208 MainTranslator]: Completed translation [2021-12-18 15:09:28,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:09:28 WrapperNode [2021-12-18 15:09:28,380 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 15:09:28,381 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 15:09:28,381 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 15:09:28,381 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 15:09:28,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:09:28" (1/1) ... [2021-12-18 15:09:28,556 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:09:28" (1/1) ... [2021-12-18 15:09:28,884 INFO L137 Inliner]: procedures = 524, calls = 8710, calls flagged for inlining = 290, calls inlined = 230, statements flattened = 12885 [2021-12-18 15:09:28,885 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 15:09:28,885 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 15:09:28,885 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 15:09:28,885 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 15:09:28,893 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:09:28" (1/1) ... [2021-12-18 15:09:28,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:09:28" (1/1) ... [2021-12-18 15:09:28,941 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:09:28" (1/1) ... [2021-12-18 15:09:28,942 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:09:28" (1/1) ... [2021-12-18 15:09:29,132 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:09:28" (1/1) ... [2021-12-18 15:09:29,156 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:09:28" (1/1) ... [2021-12-18 15:09:29,272 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:09:28" (1/1) ... [2021-12-18 15:09:29,343 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 15:09:29,344 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 15:09:29,344 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 15:09:29,346 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 15:09:29,347 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:09:28" (1/1) ... [2021-12-18 15:09:29,352 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 15:09:29,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 15:09:29,372 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) [2021-12-18 15:09:29,378 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 [2021-12-18 15:09:29,400 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-12-18 15:09:29,401 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-12-18 15:09:29,401 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2021-12-18 15:09:29,401 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2021-12-18 15:09:29,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-18 15:09:29,401 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-18 15:09:29,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 15:09:29,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 15:09:29,402 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_v4l2_read [2021-12-18 15:09:29,402 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_v4l2_read [2021-12-18 15:09:29,402 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_v4l2_release [2021-12-18 15:09:29,402 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_v4l2_release [2021-12-18 15:09:29,402 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_find_control [2021-12-18 15:09:29,402 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_find_control [2021-12-18 15:09:29,402 INFO L130 BoogieDeclarations]: Found specification of procedure __le16_to_cpup [2021-12-18 15:09:29,402 INFO L138 BoogieDeclarations]: Found implementation of procedure __le16_to_cpup [2021-12-18 15:09:29,403 INFO L130 BoogieDeclarations]: Found specification of procedure __uvc_ctrl_add_mapping [2021-12-18 15:09:29,403 INFO L138 BoogieDeclarations]: Found implementation of procedure __uvc_ctrl_add_mapping [2021-12-18 15:09:29,403 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_buffer_finish [2021-12-18 15:09:29,403 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_buffer_finish [2021-12-18 15:09:29,403 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2021-12-18 15:09:29,403 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2021-12-18 15:09:29,403 INFO L130 BoogieDeclarations]: Found specification of procedure __put_user_bad [2021-12-18 15:09:29,404 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_wait_prepare [2021-12-18 15:09:29,404 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_wait_prepare [2021-12-18 15:09:29,404 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_alloc_urb_buffers [2021-12-18 15:09:29,404 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_alloc_urb_buffers [2021-12-18 15:09:29,404 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_video_clock_reset [2021-12-18 15:09:29,404 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_video_clock_reset [2021-12-18 15:09:29,404 INFO L130 BoogieDeclarations]: Found specification of procedure usb_match_one_id [2021-12-18 15:09:29,404 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_match_one_id [2021-12-18 15:09:29,405 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-18 15:09:29,405 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-18 15:09:29,405 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-18 15:09:29,405 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get_ts [2021-12-18 15:09:29,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get_ts [2021-12-18 15:09:29,405 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_entity_by_id [2021-12-18 15:09:29,405 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_entity_by_id [2021-12-18 15:09:29,406 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-18 15:09:29,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-18 15:09:29,406 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2021-12-18 15:09:29,406 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2021-12-18 15:09:29,406 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-18 15:09:29,406 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-18 15:09:29,406 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-18 15:09:29,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-18 15:09:29,407 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-18 15:09:29,407 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-18 15:09:29,407 INFO L130 BoogieDeclarations]: Found specification of procedure video_devdata [2021-12-18 15:09:29,407 INFO L138 BoogieDeclarations]: Found implementation of procedure video_devdata [2021-12-18 15:09:29,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 15:09:29,408 INFO L130 BoogieDeclarations]: Found specification of procedure __chk_range_not_ok [2021-12-18 15:09:29,408 INFO L138 BoogieDeclarations]: Found implementation of procedure __chk_range_not_ok [2021-12-18 15:09:29,408 INFO L130 BoogieDeclarations]: Found specification of procedure __uvc_query_v4l2_ctrl [2021-12-18 15:09:29,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __uvc_query_v4l2_ctrl [2021-12-18 15:09:29,409 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_data [2021-12-18 15:09:29,409 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_data [2021-12-18 15:09:29,409 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-18 15:09:29,409 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-18 15:09:29,409 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2021-12-18 15:09:29,409 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2021-12-18 15:09:29,409 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_v4l2_ioctl [2021-12-18 15:09:29,410 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_v4l2_ioctl [2021-12-18 15:09:29,410 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-18 15:09:29,410 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-18 15:09:29,410 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_populate_cache [2021-12-18 15:09:29,410 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_populate_cache [2021-12-18 15:09:29,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-18 15:09:29,411 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_add_info [2021-12-18 15:09:29,411 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_add_info [2021-12-18 15:09:29,411 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-18 15:09:29,411 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-18 15:09:29,411 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_buffer_done [2021-12-18 15:09:29,411 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_buffer_done [2021-12-18 15:09:29,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-18 15:09:29,411 INFO L130 BoogieDeclarations]: Found specification of procedure __uvc_query_ctrl [2021-12-18 15:09:29,412 INFO L138 BoogieDeclarations]: Found implementation of procedure __uvc_query_ctrl [2021-12-18 15:09:29,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-18 15:09:29,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-18 15:09:29,412 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_wait_finish [2021-12-18 15:09:29,412 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_wait_finish [2021-12-18 15:09:29,412 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_reset_resume [2021-12-18 15:09:29,412 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_reset_resume [2021-12-18 15:09:29,412 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2021-12-18 15:09:29,413 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2021-12-18 15:09:29,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-18 15:09:29,413 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user [2021-12-18 15:09:29,413 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user [2021-12-18 15:09:29,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-18 15:09:29,413 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-18 15:09:29,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-18 15:09:29,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-18 15:09:29,414 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-12-18 15:09:29,414 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-12-18 15:09:29,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-18 15:09:29,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-18 15:09:29,415 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_scan_chain_forward [2021-12-18 15:09:29,415 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_scan_chain_forward [2021-12-18 15:09:29,415 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove_recursive [2021-12-18 15:09:29,415 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove_recursive [2021-12-18 15:09:29,415 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_commit_video [2021-12-18 15:09:29,415 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_commit_video [2021-12-18 15:09:29,415 INFO L130 BoogieDeclarations]: Found specification of procedure __get_user_bad [2021-12-18 15:09:29,416 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-12-18 15:09:29,416 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-12-18 15:09:29,416 INFO L130 BoogieDeclarations]: Found specification of procedure div_u64_rem [2021-12-18 15:09:29,416 INFO L138 BoogieDeclarations]: Found implementation of procedure div_u64_rem [2021-12-18 15:09:29,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 15:09:29,416 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2021-12-18 15:09:29,416 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2021-12-18 15:09:29,417 INFO L130 BoogieDeclarations]: Found specification of procedure __uvc_ctrl_get [2021-12-18 15:09:29,417 INFO L138 BoogieDeclarations]: Found implementation of procedure __uvc_ctrl_get [2021-12-18 15:09:29,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 15:09:29,419 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_find_endpoint [2021-12-18 15:09:29,420 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_find_endpoint [2021-12-18 15:09:29,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-18 15:09:29,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-18 15:09:29,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 15:09:29,421 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-18 15:09:29,421 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_endpoint_max_bpi [2021-12-18 15:09:29,421 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_endpoint_max_bpi [2021-12-18 15:09:29,422 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-18 15:09:29,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-18 15:09:29,426 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_set_video_ctrl [2021-12-18 15:09:29,426 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_set_video_ctrl [2021-12-18 15:09:29,427 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-12-18 15:09:29,427 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-12-18 15:09:29,427 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_delete [2021-12-18 15:09:29,427 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_delete [2021-12-18 15:09:29,427 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_commit_entity [2021-12-18 15:09:29,427 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_commit_entity [2021-12-18 15:09:29,427 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_free_urb_buffers [2021-12-18 15:09:29,427 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_free_urb_buffers [2021-12-18 15:09:29,427 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_del_event [2021-12-18 15:09:29,427 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_del_event [2021-12-18 15:09:29,428 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user [2021-12-18 15:09:29,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user [2021-12-18 15:09:29,428 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_v4l2_open [2021-12-18 15:09:29,428 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_v4l2_open [2021-12-18 15:09:29,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 15:09:29,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 15:09:29,428 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2021-12-18 15:09:29,428 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2021-12-18 15:09:29,428 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-18 15:09:29,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-18 15:09:29,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-18 15:09:29,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-18 15:09:29,429 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2021-12-18 15:09:29,429 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2021-12-18 15:09:29,429 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_fill_event [2021-12-18 15:09:29,429 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_fill_event [2021-12-18 15:09:29,429 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2021-12-18 15:09:29,429 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2021-12-18 15:09:29,429 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_get_plane_payload [2021-12-18 15:09:29,429 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_get_plane_payload [2021-12-18 15:09:29,429 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2021-12-18 15:09:29,430 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2021-12-18 15:09:29,430 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2021-12-18 15:09:29,430 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2021-12-18 15:09:29,430 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release [2021-12-18 15:09:29,430 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_release [2021-12-18 15:09:29,430 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2021-12-18 15:09:29,430 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2021-12-18 15:09:29,430 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_debugfs_cleanup [2021-12-18 15:09:29,430 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_debugfs_cleanup [2021-12-18 15:09:29,430 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2021-12-18 15:09:29,431 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2021-12-18 15:09:29,431 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-18 15:09:29,431 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-18 15:09:29,431 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_event_queue_fh [2021-12-18 15:09:29,431 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_event_queue_fh [2021-12-18 15:09:29,431 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_init_video [2021-12-18 15:09:29,431 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_init_video [2021-12-18 15:09:29,431 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_status_start [2021-12-18 15:09:29,431 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_status_start [2021-12-18 15:09:29,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-18 15:09:29,432 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-18 15:09:29,432 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_intf [2021-12-18 15:09:29,432 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_intf [2021-12-18 15:09:29,432 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR_OR_NULL [2021-12-18 15:09:29,432 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR_OR_NULL [2021-12-18 15:09:29,432 INFO L130 BoogieDeclarations]: Found specification of procedure __uvc_find_control [2021-12-18 15:09:29,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __uvc_find_control [2021-12-18 15:09:29,432 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_video_clock_cleanup [2021-12-18 15:09:29,432 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_video_clock_cleanup [2021-12-18 15:09:29,432 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-12-18 15:09:29,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-12-18 15:09:29,433 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2021-12-18 15:09:29,433 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2021-12-18 15:09:29,433 INFO L130 BoogieDeclarations]: Found specification of procedure div_u64 [2021-12-18 15:09:29,433 INFO L138 BoogieDeclarations]: Found implementation of procedure div_u64 [2021-12-18 15:09:29,433 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_buffer_prepare [2021-12-18 15:09:29,433 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_buffer_prepare [2021-12-18 15:09:29,433 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-12-18 15:09:29,433 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-12-18 15:09:29,433 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_set_zoom [2021-12-18 15:09:29,434 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_set_zoom [2021-12-18 15:09:29,434 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_test_bit [2021-12-18 15:09:29,434 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_test_bit [2021-12-18 15:09:29,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 15:09:29,434 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-18 15:09:29,434 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-18 15:09:29,434 INFO L130 BoogieDeclarations]: Found specification of procedure copy_in_user [2021-12-18 15:09:29,434 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_in_user [2021-12-18 15:09:29,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 15:09:29,434 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_status_stop [2021-12-18 15:09:29,435 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_status_stop [2021-12-18 15:09:29,435 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_alloc_entity [2021-12-18 15:09:29,435 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_alloc_entity [2021-12-18 15:09:29,435 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2021-12-18 15:09:29,435 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2021-12-18 15:09:29,435 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_query_ctrl [2021-12-18 15:09:29,435 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_query_ctrl [2021-12-18 15:09:29,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 15:09:29,435 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-18 15:09:29,435 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-18 15:09:29,436 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-12-18 15:09:29,436 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-12-18 15:09:29,436 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-18 15:09:29,436 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-18 15:09:29,436 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-18 15:09:29,436 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-18 15:09:29,436 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_dismiss_privileges [2021-12-18 15:09:29,436 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_dismiss_privileges [2021-12-18 15:09:29,436 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-18 15:09:29,436 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-18 15:09:29,437 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-12-18 15:09:29,437 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-12-18 15:09:29,437 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~__u8~0~X~$Pointer$~TO~~__s32~0 [2021-12-18 15:09:29,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~__u8~0~X~$Pointer$~TO~~__s32~0 [2021-12-18 15:09:29,437 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-18 15:09:29,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-18 15:09:29,437 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_video_clock_host_sof [2021-12-18 15:09:29,437 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_video_clock_host_sof [2021-12-18 15:09:29,437 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2021-12-18 15:09:29,437 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2021-12-18 15:09:29,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-18 15:09:29,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-18 15:09:29,438 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-12-18 15:09:29,439 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-12-18 15:09:29,441 INFO L130 BoogieDeclarations]: Found specification of procedure compat_alloc_user_space [2021-12-18 15:09:29,442 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_alloc_user_space [2021-12-18 15:09:29,442 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_plane_size [2021-12-18 15:09:29,442 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_plane_size [2021-12-18 15:09:29,442 INFO L130 BoogieDeclarations]: Found specification of procedure usb_driver_release_interface [2021-12-18 15:09:29,442 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_driver_release_interface [2021-12-18 15:09:29,442 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_print_terms [2021-12-18 15:09:29,442 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_print_terms [2021-12-18 15:09:29,442 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-18 15:09:29,443 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-18 15:09:29,443 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_has_privileges [2021-12-18 15:09:29,443 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_has_privileges [2021-12-18 15:09:29,443 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_video_enable [2021-12-18 15:09:29,444 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_video_enable [2021-12-18 15:09:29,444 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-18 15:09:29,444 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-18 15:09:29,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-18 15:09:29,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-18 15:09:29,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-18 15:09:29,444 INFO L130 BoogieDeclarations]: Found specification of procedure copy_user_generic [2021-12-18 15:09:29,444 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_user_generic [2021-12-18 15:09:29,444 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_init [2021-12-18 15:09:29,444 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_init [2021-12-18 15:09:29,445 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-12-18 15:09:29,445 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-12-18 15:09:29,445 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_entity_match_guid [2021-12-18 15:09:29,445 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_entity_match_guid [2021-12-18 15:09:29,445 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-12-18 15:09:29,445 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-12-18 15:09:29,445 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_uninit_video [2021-12-18 15:09:29,445 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_uninit_video [2021-12-18 15:09:29,445 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_debugfs_cleanup_stream [2021-12-18 15:09:29,445 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_debugfs_cleanup_stream [2021-12-18 15:09:29,445 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2021-12-18 15:09:29,446 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2021-12-18 15:09:29,446 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_queue_enable [2021-12-18 15:09:29,446 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_queue_enable [2021-12-18 15:09:29,446 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_get_video_ctrl [2021-12-18 15:09:29,446 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_get_video_ctrl [2021-12-18 15:09:29,446 INFO L130 BoogieDeclarations]: Found specification of procedure __set_bit [2021-12-18 15:09:29,446 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_bit [2021-12-18 15:09:29,446 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2021-12-18 15:09:29,446 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2021-12-18 15:09:29,446 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_get_drv_priv [2021-12-18 15:09:29,446 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_get_drv_priv [2021-12-18 15:09:29,447 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp [2021-12-18 15:09:29,447 INFO L138 BoogieDeclarations]: Found implementation of procedure strcasecmp [2021-12-18 15:09:29,447 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-12-18 15:09:29,447 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-12-18 15:09:29,447 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_buffer_queue [2021-12-18 15:09:29,447 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_buffer_queue [2021-12-18 15:09:29,447 INFO L130 BoogieDeclarations]: Found specification of procedure __uvc_resume [2021-12-18 15:09:29,447 INFO L138 BoogieDeclarations]: Found implementation of procedure __uvc_resume [2021-12-18 15:09:29,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-18 15:09:29,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-18 15:09:29,448 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_unregister_video [2021-12-18 15:09:29,448 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_unregister_video [2021-12-18 15:09:29,448 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intf [2021-12-18 15:09:29,448 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intf [2021-12-18 15:09:29,448 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_resume [2021-12-18 15:09:29,448 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_resume [2021-12-18 15:09:29,448 INFO L130 BoogieDeclarations]: Found specification of procedure kmemdup [2021-12-18 15:09:29,448 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemdup [2021-12-18 15:09:29,448 INFO L130 BoogieDeclarations]: Found specification of procedure media_entity_cleanup [2021-12-18 15:09:29,448 INFO L138 BoogieDeclarations]: Found implementation of procedure media_entity_cleanup [2021-12-18 15:09:29,448 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_queue_streaming [2021-12-18 15:09:29,449 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_queue_streaming [2021-12-18 15:09:29,449 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_disconnect [2021-12-18 15:09:29,449 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_disconnect [2021-12-18 15:09:29,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-18 15:09:29,449 INFO L130 BoogieDeclarations]: Found specification of procedure usb_string [2021-12-18 15:09:29,449 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_string [2021-12-18 15:09:29,449 INFO L130 BoogieDeclarations]: Found specification of procedure uvc_ctrl_get_zoom [2021-12-18 15:09:29,449 INFO L138 BoogieDeclarations]: Found implementation of procedure uvc_ctrl_get_zoom [2021-12-18 15:09:29,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-18 15:09:29,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-18 15:09:30,484 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 15:09:30,486 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 15:09:30,610 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-18 15:09:31,007 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10812: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2021-12-18 15:09:31,007 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10816: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2021-12-18 15:09:31,007 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10870: assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret1055#1 && __copy_to_user_nocheck_#t~ret1055#1 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___1~16#1 := __copy_to_user_nocheck_#t~ret1055#1;havoc __copy_to_user_nocheck_#t~ret1055#1; [2021-12-18 15:09:31,007 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10858: assume 0 != __copy_to_user_nocheck_~tmp___0~26#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2021-12-18 15:09:31,007 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10858: assume !(0 != __copy_to_user_nocheck_~tmp___0~26#1);__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2021-12-18 15:09:31,007 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10835: SUMMARY for call __copy_to_user_nocheck_#t~ret1056#1 := copy_user_generic(__copy_to_user_nocheck_~dst#1.base, __copy_to_user_nocheck_~dst#1.offset, __copy_to_user_nocheck_~src#1.base, __copy_to_user_nocheck_~src#1.offset, __copy_to_user_nocheck_~size#1); srcloc: null [2021-12-18 15:09:31,007 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10872: assume 0 != __copy_to_user_nocheck_~tmp___1~16#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2021-12-18 15:09:31,007 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10872: assume !(0 != __copy_to_user_nocheck_~tmp___1~16#1);__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2021-12-18 15:09:31,007 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10827: assume 10 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-12-18 15:09:31,008 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10827: assume !(10 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-12-18 15:09:31,008 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10831: assume 16 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-12-18 15:09:31,008 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10831: assume !(16 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-12-18 15:09:31,008 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume 1 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-12-18 15:09:31,008 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10819: assume 4 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-12-18 15:09:31,008 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10819: assume !(4 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-12-18 15:09:31,008 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10856: assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret1054#1 && __copy_to_user_nocheck_#t~ret1054#1 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___0~26#1 := __copy_to_user_nocheck_#t~ret1054#1;havoc __copy_to_user_nocheck_#t~ret1054#1; [2021-12-18 15:09:31,008 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !(1 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-12-18 15:09:31,008 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10823: assume 8 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-12-18 15:09:31,008 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10823: assume !(8 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-12-18 15:09:31,008 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10815: assume 2 == __copy_to_user_nocheck_~size#1 % 4294967296; [2021-12-18 15:09:31,008 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10815: assume !(2 == __copy_to_user_nocheck_~size#1 % 4294967296); [2021-12-18 15:09:31,008 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10828: SUMMARY for call __copy_to_user_nocheck_#t~ret1054#1 := ldv__builtin_expect((if 0 != __copy_to_user_nocheck_~ret~18#1 then 1 else 0), 0); srcloc: null [2021-12-18 15:09:31,008 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10832: SUMMARY for call __copy_to_user_nocheck_#t~ret1055#1 := ldv__builtin_expect((if 0 != __copy_to_user_nocheck_~ret~18#1 then 1 else 0), 0); srcloc: null [2021-12-18 15:09:31,008 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10820: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2021-12-18 15:09:31,008 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10882: __copy_to_user_nocheck_~tmp___2~11#1 := __copy_to_user_nocheck_#t~ret1056#1;havoc __copy_to_user_nocheck_#t~ret1056#1;__copy_to_user_nocheck_#res#1 := (if __copy_to_user_nocheck_~tmp___2~11#1 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_to_user_nocheck_~tmp___2~11#1 % 18446744073709551616 % 4294967296 else __copy_to_user_nocheck_~tmp___2~11#1 % 18446744073709551616 % 4294967296 - 4294967296); [2021-12-18 15:09:31,008 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10824: __copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~18#1; [2021-12-18 15:09:32,795 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10779: __copy_from_user_nocheck_~tmp___2~10#1 := __copy_from_user_nocheck_#t~ret1051#1;havoc __copy_from_user_nocheck_#t~ret1051#1;__copy_from_user_nocheck_#res#1 := (if __copy_from_user_nocheck_~tmp___2~10#1 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_from_user_nocheck_~tmp___2~10#1 % 18446744073709551616 % 4294967296 else __copy_from_user_nocheck_~tmp___2~10#1 % 18446744073709551616 % 4294967296 - 4294967296); [2021-12-18 15:09:32,796 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10767: assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret1050#1 && __copy_from_user_nocheck_#t~ret1050#1 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___1~15#1 := __copy_from_user_nocheck_#t~ret1050#1;havoc __copy_from_user_nocheck_#t~ret1050#1; [2021-12-18 15:09:32,796 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10722: assume 16 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-12-18 15:09:32,796 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10722: assume !(16 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-12-18 15:09:32,796 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10726: SUMMARY for call __copy_from_user_nocheck_#t~ret1051#1 := copy_user_generic(__copy_from_user_nocheck_~dst#1.base, __copy_from_user_nocheck_~dst#1.offset, __copy_from_user_nocheck_~src#1.base, __copy_from_user_nocheck_~src#1.offset, __copy_from_user_nocheck_~size#1); srcloc: null [2021-12-18 15:09:32,796 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10714: assume 8 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-12-18 15:09:32,796 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10714: assume !(8 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-12-18 15:09:32,796 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10718: assume 10 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-12-18 15:09:32,796 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10718: assume !(10 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-12-18 15:09:32,797 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10706: assume 2 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-12-18 15:09:32,797 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10706: assume !(2 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-12-18 15:09:32,797 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10710: assume 4 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-12-18 15:09:32,797 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10710: assume !(4 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-12-18 15:09:32,797 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10723: SUMMARY for call __copy_from_user_nocheck_#t~ret1050#1 := ldv__builtin_expect((if 0 != __copy_from_user_nocheck_~ret~17#1 then 1 else 0), 0); srcloc: null [2021-12-18 15:09:32,797 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10715: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2021-12-18 15:09:32,797 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10752: assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret1049#1 && __copy_from_user_nocheck_#t~ret1049#1 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___0~25#1 := __copy_from_user_nocheck_#t~ret1049#1;havoc __copy_from_user_nocheck_#t~ret1049#1; [2021-12-18 15:09:32,802 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10719: SUMMARY for call __copy_from_user_nocheck_#t~ret1049#1 := ldv__builtin_expect((if 0 != __copy_from_user_nocheck_~ret~17#1 then 1 else 0), 0); srcloc: null [2021-12-18 15:09:32,803 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10707: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2021-12-18 15:09:32,803 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10711: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2021-12-18 15:09:32,803 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10769: assume 0 != __copy_from_user_nocheck_~tmp___1~15#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2021-12-18 15:09:32,803 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10769: assume !(0 != __copy_from_user_nocheck_~tmp___1~15#1);__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2021-12-18 15:09:32,803 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10703: __copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2021-12-18 15:09:32,803 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume 1 == __copy_from_user_nocheck_~size#1 % 4294967296; [2021-12-18 15:09:32,803 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !(1 == __copy_from_user_nocheck_~size#1 % 4294967296); [2021-12-18 15:09:32,803 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10754: assume 0 != __copy_from_user_nocheck_~tmp___0~25#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2021-12-18 15:09:32,804 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L10754: assume !(0 != __copy_from_user_nocheck_~tmp___0~25#1);__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~17#1; [2021-12-18 15:11:47,246 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 15:11:47,269 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 15:11:47,269 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-12-18 15:11:47,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 03:11:47 BoogieIcfgContainer [2021-12-18 15:11:47,273 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 15:11:47,274 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 15:11:47,275 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 15:11:47,279 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 15:11:47,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 03:09:23" (1/3) ... [2021-12-18 15:11:47,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@505117fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 03:11:47, skipping insertion in model container [2021-12-18 15:11:47,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:09:28" (2/3) ... [2021-12-18 15:11:47,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@505117fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 03:11:47, skipping insertion in model container [2021-12-18 15:11:47,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 03:11:47" (3/3) ... [2021-12-18 15:11:47,282 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i [2021-12-18 15:11:47,286 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 15:11:47,286 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-12-18 15:11:47,337 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 15:11:47,341 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 [2021-12-18 15:11:47,341 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-12-18 15:11:47,400 INFO L276 IsEmpty]: Start isEmpty. Operand has 2915 states, 2179 states have (on average 1.362092703074805) internal successors, (2968), 2222 states have internal predecessors, (2968), 584 states have call successors, (584), 148 states have call predecessors, (584), 147 states have return successors, (577), 568 states have call predecessors, (577), 577 states have call successors, (577) [2021-12-18 15:11:47,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-12-18 15:11:47,407 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:11:47,408 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:11:47,408 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [uvc_deleteErr0ASSERT_VIOLATIONERROR_FUNCTION, uvc_deleteErr1ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 15:11:47,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:11:47,412 INFO L85 PathProgramCache]: Analyzing trace with hash -546262545, now seen corresponding path program 1 times [2021-12-18 15:11:47,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:11:47,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864945364] [2021-12-18 15:11:47,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:11:47,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:11:47,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:48,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 15:11:48,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:48,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:11:48,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:48,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:11:48,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:48,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 15:11:48,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:48,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-18 15:11:48,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:48,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 15:11:48,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:48,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2021-12-18 15:11:48,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:48,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:11:48,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:48,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-18 15:11:48,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:48,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 15:11:48,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:11:48,599 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-12-18 15:11:48,600 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:11:48,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864945364] [2021-12-18 15:11:48,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864945364] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:11:48,601 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:11:48,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 15:11:48,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98791118] [2021-12-18 15:11:48,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:11:48,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 15:11:48,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:11:48,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 15:11:48,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-18 15:11:48,632 INFO L87 Difference]: Start difference. First operand has 2915 states, 2179 states have (on average 1.362092703074805) internal successors, (2968), 2222 states have internal predecessors, (2968), 584 states have call successors, (584), 148 states have call predecessors, (584), 147 states have return successors, (577), 568 states have call predecessors, (577), 577 states have call successors, (577) Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-18 15:11:50,843 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:11:54,120 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:11:57,285 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:12:06,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:12:06,114 INFO L93 Difference]: Finished difference Result 9206 states and 13169 transitions. [2021-12-18 15:12:06,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 15:12:06,117 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 75 [2021-12-18 15:12:06,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:12:06,174 INFO L225 Difference]: With dead ends: 9206 [2021-12-18 15:12:06,175 INFO L226 Difference]: Without dead ends: 5532 [2021-12-18 15:12:06,198 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-18 15:12:06,202 INFO L933 BasicCegarLoop]: 6471 mSDtfsCounter, 5341 mSDsluCounter, 12245 mSDsCounter, 0 mSdLazyCounter, 3547 mSolverCounterSat, 1530 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5820 SdHoareTripleChecker+Valid, 18716 SdHoareTripleChecker+Invalid, 5080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1530 IncrementalHoareTripleChecker+Valid, 3547 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.7s IncrementalHoareTripleChecker+Time [2021-12-18 15:12:06,206 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5820 Valid, 18716 Invalid, 5080 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1530 Valid, 3547 Invalid, 3 Unknown, 0 Unchecked, 16.7s Time] [2021-12-18 15:12:06,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5532 states. [2021-12-18 15:12:06,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5532 to 4935. [2021-12-18 15:12:06,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4935 states, 3733 states have (on average 1.360567907848915) internal successors, (5079), 3785 states have internal predecessors, (5079), 936 states have call successors, (936), 263 states have call predecessors, (936), 262 states have return successors, (935), 918 states have call predecessors, (935), 932 states have call successors, (935) [2021-12-18 15:12:06,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4935 states to 4935 states and 6950 transitions. [2021-12-18 15:12:06,582 INFO L78 Accepts]: Start accepts. Automaton has 4935 states and 6950 transitions. Word has length 75 [2021-12-18 15:12:06,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:12:06,584 INFO L470 AbstractCegarLoop]: Abstraction has 4935 states and 6950 transitions. [2021-12-18 15:12:06,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-18 15:12:06,584 INFO L276 IsEmpty]: Start isEmpty. Operand 4935 states and 6950 transitions. [2021-12-18 15:12:06,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-12-18 15:12:06,597 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:12:06,597 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:12:06,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-18 15:12:06,598 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [uvc_deleteErr0ASSERT_VIOLATIONERROR_FUNCTION, uvc_deleteErr1ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 15:12:06,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:12:06,599 INFO L85 PathProgramCache]: Analyzing trace with hash -318568577, now seen corresponding path program 1 times [2021-12-18 15:12:06,599 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:12:06,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231320614] [2021-12-18 15:12:06,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:12:06,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:12:06,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:07,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 15:12:07,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:07,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:12:07,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:07,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:12:07,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:07,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 15:12:07,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:07,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-18 15:12:07,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:07,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 15:12:07,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:07,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-18 15:12:07,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:07,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:12:07,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:07,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:12:07,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:07,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:12:07,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:07,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 15:12:07,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:07,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:12:07,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:07,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:12:07,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:07,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:12:07,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:07,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-18 15:12:07,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:07,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:12:07,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:07,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:12:07,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:07,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:12:07,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:07,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 15:12:07,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:07,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:12:07,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:07,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:12:07,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:07,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:12:07,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:07,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 15:12:07,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:07,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:12:07,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:07,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:12:07,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:07,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:12:07,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:07,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 15:12:07,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:07,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 15:12:07,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:07,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:12:07,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:07,629 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2021-12-18 15:12:07,629 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:12:07,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231320614] [2021-12-18 15:12:07,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231320614] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:12:07,630 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:12:07,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 15:12:07,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218034303] [2021-12-18 15:12:07,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:12:07,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 15:12:07,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:12:07,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 15:12:07,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 15:12:07,632 INFO L87 Difference]: Start difference. First operand 4935 states and 6950 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-18 15:12:09,790 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:12:13,024 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:12:15,388 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:12:19,244 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:12:31,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:12:31,085 INFO L93 Difference]: Finished difference Result 6429 states and 9285 transitions. [2021-12-18 15:12:31,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-18 15:12:31,085 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 182 [2021-12-18 15:12:31,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:12:31,119 INFO L225 Difference]: With dead ends: 6429 [2021-12-18 15:12:31,119 INFO L226 Difference]: Without dead ends: 6427 [2021-12-18 15:12:31,125 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-12-18 15:12:31,126 INFO L933 BasicCegarLoop]: 6366 mSDtfsCounter, 6239 mSDsluCounter, 12661 mSDsCounter, 0 mSdLazyCounter, 4315 mSolverCounterSat, 2682 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6807 SdHoareTripleChecker+Valid, 19027 SdHoareTripleChecker+Invalid, 7001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2682 IncrementalHoareTripleChecker+Valid, 4315 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.8s IncrementalHoareTripleChecker+Time [2021-12-18 15:12:31,126 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6807 Valid, 19027 Invalid, 7001 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2682 Valid, 4315 Invalid, 4 Unknown, 0 Unchecked, 22.8s Time] [2021-12-18 15:12:31,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6427 states. [2021-12-18 15:12:31,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6427 to 4976. [2021-12-18 15:12:31,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4976 states, 3760 states have (on average 1.3579787234042553) internal successors, (5106), 3812 states have internal predecessors, (5106), 942 states have call successors, (942), 271 states have call predecessors, (942), 270 states have return successors, (941), 924 states have call predecessors, (941), 938 states have call successors, (941) [2021-12-18 15:12:31,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4976 states to 4976 states and 6989 transitions. [2021-12-18 15:12:31,294 INFO L78 Accepts]: Start accepts. Automaton has 4976 states and 6989 transitions. Word has length 182 [2021-12-18 15:12:31,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:12:31,295 INFO L470 AbstractCegarLoop]: Abstraction has 4976 states and 6989 transitions. [2021-12-18 15:12:31,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2021-12-18 15:12:31,296 INFO L276 IsEmpty]: Start isEmpty. Operand 4976 states and 6989 transitions. [2021-12-18 15:12:31,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2021-12-18 15:12:31,301 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:12:31,302 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:12:31,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-18 15:12:31,302 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting uvc_deleteErr0ASSERT_VIOLATIONERROR_FUNCTION === [uvc_deleteErr0ASSERT_VIOLATIONERROR_FUNCTION, uvc_deleteErr1ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 15:12:31,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:12:31,303 INFO L85 PathProgramCache]: Analyzing trace with hash -843534642, now seen corresponding path program 1 times [2021-12-18 15:12:31,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:12:31,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622375371] [2021-12-18 15:12:31,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:12:31,303 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:12:31,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:31,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 15:12:31,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:31,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:12:31,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:31,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:12:31,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:31,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 15:12:31,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:31,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-18 15:12:31,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:31,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 15:12:31,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:31,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-18 15:12:31,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:31,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:12:31,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:31,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:12:31,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:31,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:12:31,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:31,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 15:12:31,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:31,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:12:31,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:31,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:12:31,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:31,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:12:31,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:31,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-18 15:12:31,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:31,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:12:31,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:31,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:12:31,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:31,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:12:31,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:31,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 15:12:31,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:31,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:12:31,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:32,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:12:32,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:32,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:12:32,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:32,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 15:12:32,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:32,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:12:32,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:32,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:12:32,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:32,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:12:32,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:32,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 15:12:32,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:32,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 15:12:32,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:32,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:12:32,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:32,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-18 15:12:32,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:32,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-18 15:12:32,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:32,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-18 15:12:32,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:32,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-18 15:12:32,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:32,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-18 15:12:32,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:32,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 15:12:32,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:32,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-18 15:12:32,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:32,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:12:32,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:32,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:12:32,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:32,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-18 15:12:32,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:32,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-12-18 15:12:32,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:32,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-12-18 15:12:32,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:12:32,203 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2021-12-18 15:12:32,203 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:12:32,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622375371] [2021-12-18 15:12:32,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622375371] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:12:32,204 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:12:32,204 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-18 15:12:32,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726599844] [2021-12-18 15:12:32,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:12:32,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-18 15:12:32,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:12:32,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-18 15:12:32,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-12-18 15:12:32,206 INFO L87 Difference]: Start difference. First operand 4976 states and 6989 transitions. Second operand has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-18 15:12:34,350 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:12:36,374 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:12:39,792 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:12:41,862 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:12:43,902 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:12:46,039 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:12:48,694 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:13:01,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:13:01,776 INFO L93 Difference]: Finished difference Result 10062 states and 14344 transitions. [2021-12-18 15:13:01,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 15:13:01,777 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 260 [2021-12-18 15:13:01,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:13:01,814 INFO L225 Difference]: With dead ends: 10062 [2021-12-18 15:13:01,815 INFO L226 Difference]: Without dead ends: 7353 [2021-12-18 15:13:01,827 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-12-18 15:13:01,828 INFO L933 BasicCegarLoop]: 4911 mSDtfsCounter, 4872 mSDsluCounter, 11901 mSDsCounter, 0 mSdLazyCounter, 5207 mSolverCounterSat, 2946 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4982 SdHoareTripleChecker+Valid, 16812 SdHoareTripleChecker+Invalid, 8160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2946 IncrementalHoareTripleChecker+Valid, 5207 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.0s IncrementalHoareTripleChecker+Time [2021-12-18 15:13:01,829 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4982 Valid, 16812 Invalid, 8160 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2946 Valid, 5207 Invalid, 7 Unknown, 0 Unchecked, 29.0s Time] [2021-12-18 15:13:01,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7353 states. [2021-12-18 15:13:01,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7353 to 4980. [2021-12-18 15:13:01,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4980 states, 3764 states have (on average 1.3575982996811902) internal successors, (5110), 3816 states have internal predecessors, (5110), 942 states have call successors, (942), 271 states have call predecessors, (942), 270 states have return successors, (941), 924 states have call predecessors, (941), 938 states have call successors, (941) [2021-12-18 15:13:02,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4980 states to 4980 states and 6993 transitions. [2021-12-18 15:13:02,001 INFO L78 Accepts]: Start accepts. Automaton has 4980 states and 6993 transitions. Word has length 260 [2021-12-18 15:13:02,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:13:02,003 INFO L470 AbstractCegarLoop]: Abstraction has 4980 states and 6993 transitions. [2021-12-18 15:13:02,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-18 15:13:02,004 INFO L276 IsEmpty]: Start isEmpty. Operand 4980 states and 6993 transitions. [2021-12-18 15:13:02,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2021-12-18 15:13:02,010 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:13:02,010 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:13:02,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-18 15:13:02,010 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting uvc_deleteErr0ASSERT_VIOLATIONERROR_FUNCTION === [uvc_deleteErr0ASSERT_VIOLATIONERROR_FUNCTION, uvc_deleteErr1ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 15:13:02,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:13:02,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1087155223, now seen corresponding path program 1 times [2021-12-18 15:13:02,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:13:02,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935127544] [2021-12-18 15:13:02,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:13:02,011 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:13:02,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:02,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 15:13:02,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:02,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:13:02,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:02,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:13:02,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:02,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 15:13:02,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:02,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-18 15:13:02,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:02,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 15:13:02,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:02,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-18 15:13:02,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:02,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:13:02,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:02,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:13:02,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:02,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:13:02,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:02,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 15:13:02,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:02,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:13:02,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:02,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:13:02,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:02,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:13:02,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:02,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-18 15:13:02,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:02,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:13:02,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:02,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:13:02,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:02,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:13:02,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:02,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 15:13:02,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:02,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:13:02,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:02,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:13:02,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:02,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:13:02,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:02,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 15:13:02,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:02,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:13:02,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:02,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:13:02,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:02,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:13:02,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:02,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 15:13:02,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:02,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 15:13:02,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:02,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:13:02,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:02,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-18 15:13:02,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:02,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-18 15:13:02,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:02,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-18 15:13:02,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:02,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-18 15:13:02,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:02,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-18 15:13:02,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:02,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 15:13:02,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:02,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-18 15:13:02,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:02,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:13:02,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:02,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:13:02,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:02,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-18 15:13:02,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:02,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-12-18 15:13:02,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:02,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2021-12-18 15:13:02,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:02,711 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2021-12-18 15:13:02,711 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:13:02,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935127544] [2021-12-18 15:13:02,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935127544] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:13:02,712 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:13:02,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 15:13:02,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895667219] [2021-12-18 15:13:02,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:13:02,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 15:13:02,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:13:02,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 15:13:02,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 15:13:02,713 INFO L87 Difference]: Start difference. First operand 4980 states and 6993 transitions. Second operand has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-18 15:13:04,849 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:13:06,866 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:13:10,476 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:13:12,516 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:13:15,182 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:13:30,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:13:30,392 INFO L93 Difference]: Finished difference Result 10867 states and 15448 transitions. [2021-12-18 15:13:30,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-18 15:13:30,392 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 270 [2021-12-18 15:13:30,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:13:30,419 INFO L225 Difference]: With dead ends: 10867 [2021-12-18 15:13:30,419 INFO L226 Difference]: Without dead ends: 5959 [2021-12-18 15:13:30,435 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-18 15:13:30,435 INFO L933 BasicCegarLoop]: 3783 mSDtfsCounter, 2131 mSDsluCounter, 8389 mSDsCounter, 0 mSdLazyCounter, 4695 mSolverCounterSat, 1622 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2240 SdHoareTripleChecker+Valid, 12172 SdHoareTripleChecker+Invalid, 6322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1622 IncrementalHoareTripleChecker+Valid, 4695 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.2s IncrementalHoareTripleChecker+Time [2021-12-18 15:13:30,436 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2240 Valid, 12172 Invalid, 6322 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1622 Valid, 4695 Invalid, 5 Unknown, 0 Unchecked, 27.2s Time] [2021-12-18 15:13:30,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5959 states. [2021-12-18 15:13:30,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5959 to 4982. [2021-12-18 15:13:30,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4982 states, 3766 states have (on average 1.35740839086564) internal successors, (5112), 3818 states have internal predecessors, (5112), 942 states have call successors, (942), 271 states have call predecessors, (942), 270 states have return successors, (941), 924 states have call predecessors, (941), 938 states have call successors, (941) [2021-12-18 15:13:30,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4982 states to 4982 states and 6995 transitions. [2021-12-18 15:13:30,687 INFO L78 Accepts]: Start accepts. Automaton has 4982 states and 6995 transitions. Word has length 270 [2021-12-18 15:13:30,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:13:30,687 INFO L470 AbstractCegarLoop]: Abstraction has 4982 states and 6995 transitions. [2021-12-18 15:13:30,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (30), 5 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-18 15:13:30,688 INFO L276 IsEmpty]: Start isEmpty. Operand 4982 states and 6995 transitions. [2021-12-18 15:13:30,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2021-12-18 15:13:30,693 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:13:30,693 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:13:30,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-18 15:13:30,694 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting uvc_deleteErr0ASSERT_VIOLATIONERROR_FUNCTION === [uvc_deleteErr0ASSERT_VIOLATIONERROR_FUNCTION, uvc_deleteErr1ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 15:13:30,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:13:30,694 INFO L85 PathProgramCache]: Analyzing trace with hash -758211943, now seen corresponding path program 1 times [2021-12-18 15:13:30,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:13:30,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635463775] [2021-12-18 15:13:30,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:13:30,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:13:30,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:31,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 15:13:31,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:31,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:13:31,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:31,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:13:31,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:31,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 15:13:31,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:31,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-18 15:13:31,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:31,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 15:13:31,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:31,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-18 15:13:31,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:31,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:13:31,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:31,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:13:31,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:31,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:13:31,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:31,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 15:13:31,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:31,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:13:31,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:31,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:13:31,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:31,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:13:31,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:31,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-18 15:13:31,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:31,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:13:31,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:31,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:13:31,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:31,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:13:31,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:31,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 15:13:31,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:31,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:13:31,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:31,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:13:31,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:31,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:13:31,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:31,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 15:13:31,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:31,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:13:31,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:31,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:13:31,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:31,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:13:31,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:31,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 15:13:31,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:31,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 15:13:31,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:31,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:13:31,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:31,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-18 15:13:31,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:31,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-18 15:13:31,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:31,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-18 15:13:31,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:31,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-18 15:13:31,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:31,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-18 15:13:31,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:31,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 15:13:31,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:31,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-18 15:13:31,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:31,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:13:31,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:31,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:13:31,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:31,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-18 15:13:31,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:31,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-12-18 15:13:31,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:31,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2021-12-18 15:13:31,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:13:31,612 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2021-12-18 15:13:31,612 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:13:31,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635463775] [2021-12-18 15:13:31,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635463775] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:13:31,612 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:13:31,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-18 15:13:31,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853583141] [2021-12-18 15:13:31,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:13:31,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-18 15:13:31,613 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:13:31,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-18 15:13:31,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-12-18 15:13:31,614 INFO L87 Difference]: Start difference. First operand 4982 states and 6995 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (30), 5 states have call predecessors, (30), 2 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-18 15:13:33,784 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:13:35,805 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:13:39,791 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:13:41,798 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:13:44,432 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:14:01,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:14:01,632 INFO L93 Difference]: Finished difference Result 8674 states and 12146 transitions. [2021-12-18 15:14:01,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-18 15:14:01,634 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (30), 5 states have call predecessors, (30), 2 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) Word has length 270 [2021-12-18 15:14:01,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:14:01,664 INFO L225 Difference]: With dead ends: 8674 [2021-12-18 15:14:01,665 INFO L226 Difference]: Without dead ends: 5969 [2021-12-18 15:14:01,675 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2021-12-18 15:14:01,676 INFO L933 BasicCegarLoop]: 3778 mSDtfsCounter, 2138 mSDsluCounter, 18033 mSDsCounter, 0 mSdLazyCounter, 7777 mSolverCounterSat, 1625 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2248 SdHoareTripleChecker+Valid, 21811 SdHoareTripleChecker+Invalid, 9407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1625 IncrementalHoareTripleChecker+Valid, 7777 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.4s IncrementalHoareTripleChecker+Time [2021-12-18 15:14:01,676 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2248 Valid, 21811 Invalid, 9407 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1625 Valid, 7777 Invalid, 5 Unknown, 0 Unchecked, 29.4s Time] [2021-12-18 15:14:01,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5969 states. [2021-12-18 15:14:01,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5969 to 4992. [2021-12-18 15:14:01,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4992 states, 3774 states have (on average 1.3566507684154743) internal successors, (5120), 3826 states have internal predecessors, (5120), 942 states have call successors, (942), 271 states have call predecessors, (942), 272 states have return successors, (943), 926 states have call predecessors, (943), 938 states have call successors, (943) [2021-12-18 15:14:01,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4992 states to 4992 states and 7005 transitions. [2021-12-18 15:14:01,821 INFO L78 Accepts]: Start accepts. Automaton has 4992 states and 7005 transitions. Word has length 270 [2021-12-18 15:14:01,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:14:01,821 INFO L470 AbstractCegarLoop]: Abstraction has 4992 states and 7005 transitions. [2021-12-18 15:14:01,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (30), 5 states have call predecessors, (30), 2 states have return successors, (28), 3 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-18 15:14:01,822 INFO L276 IsEmpty]: Start isEmpty. Operand 4992 states and 7005 transitions. [2021-12-18 15:14:01,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2021-12-18 15:14:01,827 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:14:01,827 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:14:01,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-18 15:14:01,827 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting uvc_deleteErr0ASSERT_VIOLATIONERROR_FUNCTION === [uvc_deleteErr0ASSERT_VIOLATIONERROR_FUNCTION, uvc_deleteErr1ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 15:14:01,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:14:01,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1779280297, now seen corresponding path program 1 times [2021-12-18 15:14:01,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:14:01,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075937256] [2021-12-18 15:14:01,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:14:01,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:14:02,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:02,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 15:14:02,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:02,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:14:02,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:02,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:14:02,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:02,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 15:14:02,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:02,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-18 15:14:02,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:02,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 15:14:02,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:02,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-18 15:14:02,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:02,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:14:02,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:02,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:14:02,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:02,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:14:02,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:02,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 15:14:02,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:02,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:14:02,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:02,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:14:02,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:02,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:14:02,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:02,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-18 15:14:02,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:02,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:14:02,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:02,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:14:02,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:02,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:14:02,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:02,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 15:14:02,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:02,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:14:02,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:02,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:14:02,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:02,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:14:02,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:02,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 15:14:02,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:02,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:14:02,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:02,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:14:02,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:02,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:14:02,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:02,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 15:14:02,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:02,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 15:14:02,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:02,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:14:02,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:03,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-18 15:14:03,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:03,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-18 15:14:03,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:03,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-18 15:14:03,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:03,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-18 15:14:03,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:03,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-18 15:14:03,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:03,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 15:14:03,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:03,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-18 15:14:03,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:03,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:14:03,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:03,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:14:03,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:03,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-18 15:14:03,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:03,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-12-18 15:14:03,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:03,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2021-12-18 15:14:03,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:03,215 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2021-12-18 15:14:03,215 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:14:03,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075937256] [2021-12-18 15:14:03,215 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075937256] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:14:03,216 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:14:03,216 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-12-18 15:14:03,216 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272347229] [2021-12-18 15:14:03,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:14:03,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-18 15:14:03,217 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:14:03,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-18 15:14:03,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2021-12-18 15:14:03,217 INFO L87 Difference]: Start difference. First operand 4992 states and 7005 transitions. Second operand has 13 states, 13 states have (on average 8.923076923076923) internal successors, (116), 8 states have internal predecessors, (116), 2 states have call successors, (30), 5 states have call predecessors, (30), 3 states have return successors, (28), 4 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-18 15:14:05,389 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:14:07,409 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:14:16,042 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:14:18,053 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:14:21,092 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:14:40,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:14:40,333 INFO L93 Difference]: Finished difference Result 10993 states and 15630 transitions. [2021-12-18 15:14:40,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-18 15:14:40,334 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.923076923076923) internal successors, (116), 8 states have internal predecessors, (116), 2 states have call successors, (30), 5 states have call predecessors, (30), 3 states have return successors, (28), 4 states have call predecessors, (28), 2 states have call successors, (28) Word has length 270 [2021-12-18 15:14:40,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:14:40,356 INFO L225 Difference]: With dead ends: 10993 [2021-12-18 15:14:40,356 INFO L226 Difference]: Without dead ends: 6041 [2021-12-18 15:14:40,370 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=79, Invalid=301, Unknown=0, NotChecked=0, Total=380 [2021-12-18 15:14:40,370 INFO L933 BasicCegarLoop]: 3822 mSDtfsCounter, 2201 mSDsluCounter, 31247 mSDsCounter, 0 mSdLazyCounter, 11978 mSolverCounterSat, 1653 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2334 SdHoareTripleChecker+Valid, 35069 SdHoareTripleChecker+Invalid, 13636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1653 IncrementalHoareTripleChecker+Valid, 11978 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.2s IncrementalHoareTripleChecker+Time [2021-12-18 15:14:40,371 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2334 Valid, 35069 Invalid, 13636 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1653 Valid, 11978 Invalid, 5 Unknown, 0 Unchecked, 36.2s Time] [2021-12-18 15:14:40,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6041 states. [2021-12-18 15:14:40,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6041 to 5002. [2021-12-18 15:14:40,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5002 states, 3782 states have (on average 1.3558963511369646) internal successors, (5128), 3834 states have internal predecessors, (5128), 942 states have call successors, (942), 271 states have call predecessors, (942), 274 states have return successors, (953), 928 states have call predecessors, (953), 938 states have call successors, (953) [2021-12-18 15:14:40,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5002 states to 5002 states and 7023 transitions. [2021-12-18 15:14:40,507 INFO L78 Accepts]: Start accepts. Automaton has 5002 states and 7023 transitions. Word has length 270 [2021-12-18 15:14:40,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:14:40,507 INFO L470 AbstractCegarLoop]: Abstraction has 5002 states and 7023 transitions. [2021-12-18 15:14:40,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.923076923076923) internal successors, (116), 8 states have internal predecessors, (116), 2 states have call successors, (30), 5 states have call predecessors, (30), 3 states have return successors, (28), 4 states have call predecessors, (28), 2 states have call successors, (28) [2021-12-18 15:14:40,508 INFO L276 IsEmpty]: Start isEmpty. Operand 5002 states and 7023 transitions. [2021-12-18 15:14:40,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2021-12-18 15:14:40,514 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:14:40,514 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:14:40,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-18 15:14:40,514 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting uvc_deleteErr0ASSERT_VIOLATIONERROR_FUNCTION === [uvc_deleteErr0ASSERT_VIOLATIONERROR_FUNCTION, uvc_deleteErr1ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 15:14:40,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:14:40,515 INFO L85 PathProgramCache]: Analyzing trace with hash -424561556, now seen corresponding path program 1 times [2021-12-18 15:14:40,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:14:40,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562876768] [2021-12-18 15:14:40,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:14:40,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:14:40,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:40,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 15:14:40,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:40,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:14:40,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:40,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:14:40,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:40,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 15:14:40,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:40,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-18 15:14:40,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:40,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 15:14:40,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:40,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-18 15:14:41,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:41,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:14:41,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:41,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:14:41,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:41,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:14:41,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:41,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 15:14:41,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:41,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:14:41,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:41,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:14:41,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:41,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:14:41,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:41,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-18 15:14:41,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:41,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:14:41,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:41,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:14:41,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:41,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:14:41,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:41,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-18 15:14:41,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:41,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:14:41,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:41,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:14:41,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:41,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:14:41,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:41,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 15:14:41,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:41,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:14:41,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:41,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:14:41,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:41,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:14:41,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:41,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 15:14:41,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:41,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 15:14:41,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:41,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:14:41,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:41,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-18 15:14:41,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:41,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:14:41,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:41,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-18 15:14:41,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:41,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-18 15:14:41,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:41,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-18 15:14:41,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:41,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-18 15:14:41,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:41,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-18 15:14:41,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:41,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:14:41,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:41,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-12-18 15:14:41,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:41,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:14:41,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:41,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:14:41,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:41,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:14:41,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:41,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:14:41,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:41,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 15:14:41,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:41,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-18 15:14:41,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:41,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2021-12-18 15:14:41,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:41,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2021-12-18 15:14:41,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:14:41,493 INFO L134 CoverageAnalysis]: Checked inductivity of 575 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 575 trivial. 0 not checked. [2021-12-18 15:14:41,494 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:14:41,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562876768] [2021-12-18 15:14:41,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562876768] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:14:41,494 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 15:14:41,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-18 15:14:41,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200741384] [2021-12-18 15:14:41,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:14:41,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-18 15:14:41,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:14:41,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-18 15:14:41,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-12-18 15:14:41,496 INFO L87 Difference]: Start difference. First operand 5002 states and 7023 transitions. Second operand has 11 states, 11 states have (on average 11.272727272727273) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (37), 8 states have call predecessors, (37), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-12-18 15:14:43,662 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:14:45,686 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:14:47,705 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:14:54,728 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:14:56,754 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:14:58,802 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:15:01,787 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:15:23,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:15:23,601 INFO L93 Difference]: Finished difference Result 9896 states and 14010 transitions. [2021-12-18 15:15:23,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-18 15:15:23,603 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.272727272727273) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (37), 8 states have call predecessors, (37), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 295 [2021-12-18 15:15:23,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:15:23,627 INFO L225 Difference]: With dead ends: 9896 [2021-12-18 15:15:23,628 INFO L226 Difference]: Without dead ends: 7187 [2021-12-18 15:15:23,637 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2021-12-18 15:15:23,638 INFO L933 BasicCegarLoop]: 4102 mSDtfsCounter, 3627 mSDsluCounter, 17376 mSDsCounter, 0 mSdLazyCounter, 9442 mSolverCounterSat, 1698 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3999 SdHoareTripleChecker+Valid, 21478 SdHoareTripleChecker+Invalid, 11147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1698 IncrementalHoareTripleChecker+Valid, 9442 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.5s IncrementalHoareTripleChecker+Time [2021-12-18 15:15:23,638 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3999 Valid, 21478 Invalid, 11147 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1698 Valid, 9442 Invalid, 7 Unknown, 0 Unchecked, 41.5s Time] [2021-12-18 15:15:23,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7187 states. [2021-12-18 15:15:23,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7187 to 5008. [2021-12-18 15:15:23,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5008 states, 3788 states have (on average 1.3553326293558605) internal successors, (5134), 3840 states have internal predecessors, (5134), 942 states have call successors, (942), 271 states have call predecessors, (942), 274 states have return successors, (953), 928 states have call predecessors, (953), 938 states have call successors, (953) [2021-12-18 15:15:23,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5008 states to 5008 states and 7029 transitions. [2021-12-18 15:15:23,770 INFO L78 Accepts]: Start accepts. Automaton has 5008 states and 7029 transitions. Word has length 295 [2021-12-18 15:15:23,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:15:23,770 INFO L470 AbstractCegarLoop]: Abstraction has 5008 states and 7029 transitions. [2021-12-18 15:15:23,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.272727272727273) internal successors, (124), 5 states have internal predecessors, (124), 2 states have call successors, (37), 8 states have call predecessors, (37), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-12-18 15:15:23,771 INFO L276 IsEmpty]: Start isEmpty. Operand 5008 states and 7029 transitions. [2021-12-18 15:15:23,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2021-12-18 15:15:23,775 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:15:23,775 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:15:23,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-18 15:15:23,776 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting uvc_deleteErr0ASSERT_VIOLATIONERROR_FUNCTION === [uvc_deleteErr0ASSERT_VIOLATIONERROR_FUNCTION, uvc_deleteErr1ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 15:15:23,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:15:23,776 INFO L85 PathProgramCache]: Analyzing trace with hash -1913747416, now seen corresponding path program 1 times [2021-12-18 15:15:23,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:15:23,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144193473] [2021-12-18 15:15:23,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:15:23,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:15:23,975 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 15:15:23,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [817548374] [2021-12-18 15:15:23,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:15:23,976 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 15:15:23,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 15:15:23,980 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 15:15:23,983 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-18 15:15:26,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:15:26,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 11691 conjuncts, 260 conjunts are in the unsatisfiable core [2021-12-18 15:15:26,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 15:15:26,554 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-12-18 15:15:26,562 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-12-18 15:15:26,765 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-12-18 15:15:26,770 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2021-12-18 15:15:27,188 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-18 15:15:27,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-12-18 15:15:27,718 INFO L354 Elim1Store]: treesize reduction 70, result has 19.5 percent of original size [2021-12-18 15:15:27,719 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 31 [2021-12-18 15:15:27,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-18 15:15:27,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-18 15:15:27,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-18 15:15:27,740 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 39 [2021-12-18 15:15:27,778 INFO L354 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2021-12-18 15:15:27,778 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-12-18 15:15:27,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-18 15:15:27,790 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 30 [2021-12-18 15:15:30,069 WARN L860 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_2203 Int)) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_atomic_inc_#in~v#1.base| (store (select |c_old(#memory_$Pointer$.base)| |c_atomic_inc_#in~v#1.base|) |c_atomic_inc_#in~v#1.offset| v_ArrVal_2203)))) (exists ((v_ArrVal_2202 Int)) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_atomic_inc_#in~v#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |c_atomic_inc_#in~v#1.base|) |c_atomic_inc_#in~v#1.offset| v_ArrVal_2202))))) is different from true [2021-12-18 15:15:30,107 INFO L354 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2021-12-18 15:15:30,108 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-12-18 15:15:30,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-18 15:15:30,118 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 30 [2021-12-18 15:15:31,866 WARN L860 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_2207 Int)) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_atomic_dec_and_test_#in~v#1.base| (store (select |c_old(#memory_$Pointer$.base)| |c_atomic_dec_and_test_#in~v#1.base|) |c_atomic_dec_and_test_#in~v#1.offset| v_ArrVal_2207)))) (exists ((v_ArrVal_2209 Int)) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_atomic_dec_and_test_#in~v#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |c_atomic_dec_and_test_#in~v#1.base|) |c_atomic_dec_and_test_#in~v#1.offset| v_ArrVal_2209))))) is different from true [2021-12-18 15:15:31,936 INFO L354 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2021-12-18 15:15:31,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-12-18 15:15:31,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-18 15:15:31,947 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 30 [2021-12-18 15:15:32,423 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2021-12-18 15:15:32,431 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-12-18 15:15:32,576 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 145 proven. 26 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2021-12-18 15:15:32,577 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 15:15:35,504 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 473 trivial. 0 not checked. [2021-12-18 15:15:35,504 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:15:35,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144193473] [2021-12-18 15:15:35,505 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 15:15:35,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [817548374] [2021-12-18 15:15:35,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [817548374] provided 1 perfect and 1 imperfect interpolant sequences [2021-12-18 15:15:35,505 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 15:15:35,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [24] total 35 [2021-12-18 15:15:35,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808405706] [2021-12-18 15:15:35,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:15:35,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-18 15:15:35,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:15:35,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-18 15:15:35,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=974, Unknown=2, NotChecked=126, Total=1190 [2021-12-18 15:15:35,507 INFO L87 Difference]: Start difference. First operand 5008 states and 7029 transitions. Second operand has 13 states, 13 states have (on average 9.307692307692308) internal successors, (121), 11 states have internal predecessors, (121), 4 states have call successors, (34), 5 states have call predecessors, (34), 3 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2021-12-18 15:15:37,660 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:15:39,685 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:15:41,714 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:15:43,741 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:15:45,769 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:15:47,650 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:15:49,678 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:16:00,918 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:16:02,946 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:16:04,973 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:16:06,993 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:16:09,034 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:16:11,047 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:16:13,082 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:16:16,337 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:16:18,361 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:16:20,390 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:16:22,434 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:16:24,468 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:16:25,943 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:16:27,981 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:16:29,737 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:16:31,779 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:16:33,817 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:16:35,855 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:16:37,891 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:16:49,601 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:16:51,608 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:16:53,638 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:17:35,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:17:35,147 INFO L93 Difference]: Finished difference Result 6615 states and 9283 transitions. [2021-12-18 15:17:35,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-18 15:17:35,148 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.307692307692308) internal successors, (121), 11 states have internal predecessors, (121), 4 states have call successors, (34), 5 states have call predecessors, (34), 3 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) Word has length 291 [2021-12-18 15:17:35,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:17:35,171 INFO L225 Difference]: With dead ends: 6615 [2021-12-18 15:17:35,172 INFO L226 Difference]: Without dead ends: 5646 [2021-12-18 15:17:35,178 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 591 GetRequests, 538 SyntacticMatches, 10 SemanticMatches, 43 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 372 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=156, Invalid=1656, Unknown=2, NotChecked=166, Total=1980 [2021-12-18 15:17:35,179 INFO L933 BasicCegarLoop]: 5178 mSDtfsCounter, 6033 mSDsluCounter, 38267 mSDsCounter, 0 mSdLazyCounter, 16227 mSolverCounterSat, 2295 mSolverCounterUnsat, 25 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 110.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6033 SdHoareTripleChecker+Valid, 43445 SdHoareTripleChecker+Invalid, 18547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2295 IncrementalHoareTripleChecker+Valid, 16227 IncrementalHoareTripleChecker+Invalid, 25 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 117.8s IncrementalHoareTripleChecker+Time [2021-12-18 15:17:35,179 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6033 Valid, 43445 Invalid, 18547 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2295 Valid, 16227 Invalid, 25 Unknown, 0 Unchecked, 117.8s Time] [2021-12-18 15:17:35,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5646 states. [2021-12-18 15:17:35,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5646 to 5254. [2021-12-18 15:17:35,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5254 states, 3986 states have (on average 1.35725037631711) internal successors, (5410), 4042 states have internal predecessors, (5410), 987 states have call successors, (987), 273 states have call predecessors, (987), 277 states have return successors, (1002), 973 states have call predecessors, (1002), 983 states have call successors, (1002) [2021-12-18 15:17:35,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5254 states to 5254 states and 7399 transitions. [2021-12-18 15:17:35,438 INFO L78 Accepts]: Start accepts. Automaton has 5254 states and 7399 transitions. Word has length 291 [2021-12-18 15:17:35,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:17:35,440 INFO L470 AbstractCegarLoop]: Abstraction has 5254 states and 7399 transitions. [2021-12-18 15:17:35,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.307692307692308) internal successors, (121), 11 states have internal predecessors, (121), 4 states have call successors, (34), 5 states have call predecessors, (34), 3 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2021-12-18 15:17:35,440 INFO L276 IsEmpty]: Start isEmpty. Operand 5254 states and 7399 transitions. [2021-12-18 15:17:35,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2021-12-18 15:17:35,446 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:17:35,446 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:17:35,494 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-18 15:17:35,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 15:17:35,664 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting uvc_deleteErr0ASSERT_VIOLATIONERROR_FUNCTION === [uvc_deleteErr0ASSERT_VIOLATIONERROR_FUNCTION, uvc_deleteErr1ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 15:17:35,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:17:35,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1688621126, now seen corresponding path program 1 times [2021-12-18 15:17:35,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:17:35,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705188450] [2021-12-18 15:17:35,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:17:35,665 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:17:35,870 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 15:17:35,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [699264987] [2021-12-18 15:17:35,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:17:35,870 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 15:17:35,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 15:17:35,872 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 15:17:35,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-18 15:17:39,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:17:39,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 11739 conjuncts, 40 conjunts are in the unsatisfiable core [2021-12-18 15:17:39,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 15:17:40,435 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 188 proven. 3 refuted. 0 times theorem prover too weak. 282 trivial. 0 not checked. [2021-12-18 15:17:40,435 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 15:17:41,688 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 3 proven. 57 refuted. 0 times theorem prover too weak. 413 trivial. 0 not checked. [2021-12-18 15:17:41,689 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:17:41,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705188450] [2021-12-18 15:17:41,689 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 15:17:41,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [699264987] [2021-12-18 15:17:41,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [699264987] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-18 15:17:41,689 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-12-18 15:17:41,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2021-12-18 15:17:41,690 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940930208] [2021-12-18 15:17:41,690 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-12-18 15:17:41,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-18 15:17:41,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:17:41,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-18 15:17:41,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-12-18 15:17:41,691 INFO L87 Difference]: Start difference. First operand 5254 states and 7399 transitions. Second operand has 14 states, 13 states have (on average 14.538461538461538) internal successors, (189), 12 states have internal predecessors, (189), 5 states have call successors, (67), 2 states have call predecessors, (67), 5 states have return successors, (67), 6 states have call predecessors, (67), 5 states have call successors, (67) [2021-12-18 15:17:42,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:17:42,425 INFO L93 Difference]: Finished difference Result 10488 states and 14770 transitions. [2021-12-18 15:17:42,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-18 15:17:42,427 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 14.538461538461538) internal successors, (189), 12 states have internal predecessors, (189), 5 states have call successors, (67), 2 states have call predecessors, (67), 5 states have return successors, (67), 6 states have call predecessors, (67), 5 states have call successors, (67) Word has length 296 [2021-12-18 15:17:42,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:17:42,443 INFO L225 Difference]: With dead ends: 10488 [2021-12-18 15:17:42,443 INFO L226 Difference]: Without dead ends: 5254 [2021-12-18 15:17:42,456 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 592 GetRequests, 577 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2021-12-18 15:17:42,456 INFO L933 BasicCegarLoop]: 4043 mSDtfsCounter, 1556 mSDsluCounter, 28622 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1861 SdHoareTripleChecker+Valid, 32665 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-18 15:17:42,457 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1861 Valid, 32665 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-18 15:17:42,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5254 states. [2021-12-18 15:17:42,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5254 to 5254. [2021-12-18 15:17:42,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5254 states, 3986 states have (on average 1.3569994982438536) internal successors, (5409), 4041 states have internal predecessors, (5409), 987 states have call successors, (987), 273 states have call predecessors, (987), 277 states have return successors, (1002), 973 states have call predecessors, (1002), 983 states have call successors, (1002) [2021-12-18 15:17:42,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5254 states to 5254 states and 7398 transitions. [2021-12-18 15:17:42,616 INFO L78 Accepts]: Start accepts. Automaton has 5254 states and 7398 transitions. Word has length 296 [2021-12-18 15:17:42,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:17:42,616 INFO L470 AbstractCegarLoop]: Abstraction has 5254 states and 7398 transitions. [2021-12-18 15:17:42,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 14.538461538461538) internal successors, (189), 12 states have internal predecessors, (189), 5 states have call successors, (67), 2 states have call predecessors, (67), 5 states have return successors, (67), 6 states have call predecessors, (67), 5 states have call successors, (67) [2021-12-18 15:17:42,617 INFO L276 IsEmpty]: Start isEmpty. Operand 5254 states and 7398 transitions. [2021-12-18 15:17:42,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2021-12-18 15:17:42,624 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:17:42,624 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:17:42,684 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-18 15:17:42,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-12-18 15:17:42,836 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting uvc_deleteErr0ASSERT_VIOLATIONERROR_FUNCTION === [uvc_deleteErr0ASSERT_VIOLATIONERROR_FUNCTION, uvc_deleteErr1ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 15:17:42,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:17:42,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1400247410, now seen corresponding path program 1 times [2021-12-18 15:17:42,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:17:42,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057081722] [2021-12-18 15:17:42,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:17:42,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:17:44,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:17:45,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 15:17:45,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:17:45,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:17:45,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:17:45,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:17:45,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:17:45,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-18 15:17:45,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:17:45,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-18 15:17:45,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:17:45,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-18 15:17:45,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:17:45,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-18 15:17:45,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:17:45,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:17:45,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:17:45,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:17:45,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:17:45,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:17:45,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:17:45,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-18 15:17:45,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:17:45,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-18 15:17:45,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:17:45,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:17:45,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:17:45,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:17:45,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:17:45,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:17:45,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:17:45,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-18 15:17:45,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:17:45,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:17:45,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:17:45,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:17:45,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:17:45,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:17:45,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:17:45,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-18 15:17:45,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:17:45,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:17:45,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:17:45,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:17:45,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:17:45,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:17:45,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:17:45,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-18 15:17:45,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:17:45,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:17:45,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:17:45,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:17:45,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:17:45,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:17:45,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:17:45,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-18 15:17:45,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:17:45,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 15:17:45,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:17:45,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:17:45,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:17:45,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-18 15:17:45,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:17:45,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:17:45,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:17:45,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-12-18 15:17:45,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:17:45,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-18 15:17:45,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:17:45,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-18 15:17:45,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:17:45,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-18 15:17:45,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:17:45,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-12-18 15:17:45,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:17:45,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:17:45,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:17:45,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-12-18 15:17:45,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:17:45,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:17:45,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:17:45,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 15:17:45,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:17:45,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 15:17:45,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:17:45,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 15:17:45,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:17:45,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-18 15:17:45,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:17:45,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2021-12-18 15:17:45,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:17:45,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2021-12-18 15:17:45,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:17:45,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2021-12-18 15:17:45,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:17:45,892 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 36 proven. 6 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2021-12-18 15:17:45,892 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:17:45,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057081722] [2021-12-18 15:17:45,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057081722] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 15:17:45,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1939012229] [2021-12-18 15:17:45,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:17:45,893 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 15:17:45,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 15:17:45,904 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 15:17:45,905 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-18 15:17:47,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:17:47,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 11633 conjuncts, 22 conjunts are in the unsatisfiable core [2021-12-18 15:17:47,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 15:17:49,012 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 411 trivial. 0 not checked. [2021-12-18 15:17:49,012 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-18 15:17:49,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1939012229] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 15:17:49,012 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-18 15:17:49,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [19] total 29 [2021-12-18 15:17:49,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977048099] [2021-12-18 15:17:49,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 15:17:49,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-18 15:17:49,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:17:49,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-18 15:17:49,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=741, Unknown=0, NotChecked=0, Total=812 [2021-12-18 15:17:49,014 INFO L87 Difference]: Start difference. First operand 5254 states and 7398 transitions. Second operand has 14 states, 13 states have (on average 10.461538461538462) internal successors, (136), 13 states have internal predecessors, (136), 5 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (35), 5 states have call predecessors, (35), 5 states have call successors, (35) [2021-12-18 15:17:50,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:17:50,784 INFO L93 Difference]: Finished difference Result 8508 states and 11774 transitions. [2021-12-18 15:17:50,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-18 15:17:50,785 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 10.461538461538462) internal successors, (136), 13 states have internal predecessors, (136), 5 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (35), 5 states have call predecessors, (35), 5 states have call successors, (35) Word has length 301 [2021-12-18 15:17:50,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:17:50,802 INFO L225 Difference]: With dead ends: 8508 [2021-12-18 15:17:50,802 INFO L226 Difference]: Without dead ends: 5489 [2021-12-18 15:17:50,813 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 413 GetRequests, 377 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=152, Invalid=1180, Unknown=0, NotChecked=0, Total=1332 [2021-12-18 15:17:50,813 INFO L933 BasicCegarLoop]: 4172 mSDtfsCounter, 2931 mSDsluCounter, 49073 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 1032 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2931 SdHoareTripleChecker+Valid, 53245 SdHoareTripleChecker+Invalid, 1531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1032 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-18 15:17:50,814 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2931 Valid, 53245 Invalid, 1531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1032 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-18 15:17:50,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5489 states. [2021-12-18 15:17:50,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5489 to 5014. [2021-12-18 15:17:50,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5014 states, 3812 states have (on average 1.361227701993704) internal successors, (5189), 3862 states have internal predecessors, (5189), 930 states have call successors, (930), 270 states have call predecessors, (930), 268 states have return successors, (933), 911 states have call predecessors, (933), 923 states have call successors, (933) [2021-12-18 15:17:50,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5014 states to 5014 states and 7052 transitions. [2021-12-18 15:17:50,979 INFO L78 Accepts]: Start accepts. Automaton has 5014 states and 7052 transitions. Word has length 301 [2021-12-18 15:17:50,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:17:50,980 INFO L470 AbstractCegarLoop]: Abstraction has 5014 states and 7052 transitions. [2021-12-18 15:17:50,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 10.461538461538462) internal successors, (136), 13 states have internal predecessors, (136), 5 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (35), 5 states have call predecessors, (35), 5 states have call successors, (35) [2021-12-18 15:17:50,980 INFO L276 IsEmpty]: Start isEmpty. Operand 5014 states and 7052 transitions. [2021-12-18 15:17:50,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2021-12-18 15:17:50,984 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:17:50,984 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:17:51,030 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-18 15:17:51,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 15:17:51,212 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting uvc_deleteErr0ASSERT_VIOLATIONERROR_FUNCTION === [uvc_deleteErr0ASSERT_VIOLATIONERROR_FUNCTION, uvc_deleteErr1ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 15:17:51,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:17:51,212 INFO L85 PathProgramCache]: Analyzing trace with hash 659843017, now seen corresponding path program 1 times [2021-12-18 15:17:51,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:17:51,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941450718] [2021-12-18 15:17:51,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:17:51,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:17:51,424 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 15:17:51,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1841814717] [2021-12-18 15:17:51,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:17:51,425 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 15:17:51,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 15:17:51,426 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 15:17:51,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-18 15:17:54,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:17:54,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 11757 conjuncts, 266 conjunts are in the unsatisfiable core [2021-12-18 15:17:54,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 15:17:55,109 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-12-18 15:17:55,120 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-12-18 15:17:55,293 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2021-12-18 15:17:55,297 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2021-12-18 15:17:55,705 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-18 15:17:55,716 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-12-18 15:17:56,308 INFO L354 Elim1Store]: treesize reduction 70, result has 19.5 percent of original size [2021-12-18 15:17:56,308 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 39 [2021-12-18 15:17:56,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-18 15:17:56,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-18 15:17:56,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-18 15:17:56,324 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-12-18 15:17:56,360 INFO L354 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2021-12-18 15:17:56,361 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-12-18 15:17:56,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-18 15:17:56,370 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 30 [2021-12-18 15:17:56,512 INFO L354 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2021-12-18 15:17:56,513 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 30 [2021-12-18 15:17:56,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-18 15:17:56,527 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-12-18 15:17:56,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-18 15:17:56,906 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 30 [2021-12-18 15:17:56,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-18 15:17:56,921 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-12-18 15:17:57,005 INFO L354 Elim1Store]: treesize reduction 70, result has 19.5 percent of original size [2021-12-18 15:17:57,006 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 31 [2021-12-18 15:17:57,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-18 15:17:57,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-18 15:17:57,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-18 15:17:57,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 39 [2021-12-18 15:17:59,350 WARN L860 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_3738 Int)) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_atomic_inc_#in~v#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |c_atomic_inc_#in~v#1.base|) |c_atomic_inc_#in~v#1.offset| v_ArrVal_3738)))) (exists ((v_ArrVal_3737 Int)) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_atomic_inc_#in~v#1.base| (store (select |c_old(#memory_$Pointer$.base)| |c_atomic_inc_#in~v#1.base|) |c_atomic_inc_#in~v#1.offset| v_ArrVal_3737))))) is different from true [2021-12-18 15:17:59,395 INFO L354 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2021-12-18 15:17:59,395 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-12-18 15:17:59,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-18 15:17:59,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 30 [2021-12-18 15:18:01,473 WARN L860 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_3742 Int)) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_atomic_dec_and_test_#in~v#1.base| (store (select |c_old(#memory_$Pointer$.base)| |c_atomic_dec_and_test_#in~v#1.base|) |c_atomic_dec_and_test_#in~v#1.offset| v_ArrVal_3742)))) (exists ((v_ArrVal_3741 Int)) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_atomic_dec_and_test_#in~v#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |c_atomic_dec_and_test_#in~v#1.base|) |c_atomic_dec_and_test_#in~v#1.offset| v_ArrVal_3741))))) is different from true [2021-12-18 15:18:01,530 INFO L354 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2021-12-18 15:18:01,530 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-12-18 15:18:01,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-18 15:18:01,542 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 30 [2021-12-18 15:18:02,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2021-12-18 15:18:02,117 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2021-12-18 15:18:02,254 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 145 proven. 26 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2021-12-18 15:18:02,255 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 15:18:11,659 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3725 Int) (|v_ULTIMATE.start_#Ultimate.C_strcpy_#t~offset3371#1_7| Int) (v_ArrVal_3723 Int) (|v_ULTIMATE.start_#Ultimate.C_strcpy_dest#1.offset_5| Int)) (or (= 0 (mod (let ((.cse0 (+ |v_ULTIMATE.start_#Ultimate.C_strcpy_#t~offset3371#1_7| |v_ULTIMATE.start_#Ultimate.C_strcpy_dest#1.offset_5|))) (+ (select (store (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_uvc_probe_~dev~1#1.base|) .cse0 v_ArrVal_3725) |c_ULTIMATE.start_uvc_probe_~dev~1#1.offset|) (select (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_uvc_probe_~dev~1#1.base|) .cse0 v_ArrVal_3723) |c_ULTIMATE.start_uvc_probe_~dev~1#1.offset|))) 18446744073709551616)) (< |v_ULTIMATE.start_#Ultimate.C_strcpy_dest#1.offset_5| (+ |c_ULTIMATE.start_uvc_probe_~dev~1#1.offset| 2044)) (< |v_ULTIMATE.start_#Ultimate.C_strcpy_#t~offset3371#1_7| 0))) is different from false [2021-12-18 15:18:11,924 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:18:11,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941450718] [2021-12-18 15:18:11,924 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 15:18:11,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1841814717] [2021-12-18 15:18:11,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1841814717] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 15:18:11,924 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-12-18 15:18:11,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2021-12-18 15:18:11,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631423654] [2021-12-18 15:18:11,925 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-12-18 15:18:11,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-12-18 15:18:11,925 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:18:11,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-12-18 15:18:11,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=852, Unknown=5, NotChecked=180, Total=1122 [2021-12-18 15:18:11,926 INFO L87 Difference]: Start difference. First operand 5014 states and 7052 transitions. Second operand has 24 states, 24 states have (on average 6.041666666666667) internal successors, (145), 20 states have internal predecessors, (145), 9 states have call successors, (43), 6 states have call predecessors, (43), 6 states have return successors, (41), 10 states have call predecessors, (41), 9 states have call successors, (41) [2021-12-18 15:18:14,061 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:18:16,084 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:18:18,107 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:18:20,136 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:18:22,156 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:18:24,187 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:18:32,333 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:18:37,353 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:19:33,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:19:33,754 INFO L93 Difference]: Finished difference Result 6630 states and 9560 transitions. [2021-12-18 15:19:33,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-12-18 15:19:33,755 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 6.041666666666667) internal successors, (145), 20 states have internal predecessors, (145), 9 states have call successors, (43), 6 states have call predecessors, (43), 6 states have return successors, (41), 10 states have call predecessors, (41), 9 states have call successors, (41) Word has length 300 [2021-12-18 15:19:33,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:19:33,795 INFO L225 Difference]: With dead ends: 6630 [2021-12-18 15:19:33,795 INFO L226 Difference]: Without dead ends: 6612 [2021-12-18 15:19:33,798 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 293 SyntacticMatches, 11 SemanticMatches, 52 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 502 ImplicationChecksByTransitivity, 15.8s TimeCoverageRelationStatistics Valid=247, Invalid=2310, Unknown=5, NotChecked=300, Total=2862 [2021-12-18 15:19:33,799 INFO L933 BasicCegarLoop]: 4760 mSDtfsCounter, 5658 mSDsluCounter, 61535 mSDsCounter, 0 mSdLazyCounter, 20133 mSolverCounterSat, 1849 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 71.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5817 SdHoareTripleChecker+Valid, 66295 SdHoareTripleChecker+Invalid, 36829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 1849 IncrementalHoareTripleChecker+Valid, 20133 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 14839 IncrementalHoareTripleChecker+Unchecked, 78.9s IncrementalHoareTripleChecker+Time [2021-12-18 15:19:33,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5817 Valid, 66295 Invalid, 36829 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [1849 Valid, 20133 Invalid, 8 Unknown, 14839 Unchecked, 78.9s Time] [2021-12-18 15:19:33,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6612 states. [2021-12-18 15:19:33,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6612 to 5301. [2021-12-18 15:19:33,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5301 states, 4055 states have (on average 1.3681874229346487) internal successors, (5548), 4110 states have internal predecessors, (5548), 962 states have call successors, (962), 279 states have call predecessors, (962), 280 states have return successors, (996), 942 states have call predecessors, (996), 955 states have call successors, (996) [2021-12-18 15:19:33,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5301 states to 5301 states and 7506 transitions. [2021-12-18 15:19:33,981 INFO L78 Accepts]: Start accepts. Automaton has 5301 states and 7506 transitions. Word has length 300 [2021-12-18 15:19:33,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:19:33,982 INFO L470 AbstractCegarLoop]: Abstraction has 5301 states and 7506 transitions. [2021-12-18 15:19:33,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 6.041666666666667) internal successors, (145), 20 states have internal predecessors, (145), 9 states have call successors, (43), 6 states have call predecessors, (43), 6 states have return successors, (41), 10 states have call predecessors, (41), 9 states have call successors, (41) [2021-12-18 15:19:33,982 INFO L276 IsEmpty]: Start isEmpty. Operand 5301 states and 7506 transitions. [2021-12-18 15:19:33,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2021-12-18 15:19:33,985 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:19:33,986 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:19:34,039 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-18 15:19:34,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 15:19:34,212 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [uvc_deleteErr0ASSERT_VIOLATIONERROR_FUNCTION, uvc_deleteErr1ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 15:19:34,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:19:34,212 INFO L85 PathProgramCache]: Analyzing trace with hash -601269880, now seen corresponding path program 1 times [2021-12-18 15:19:34,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:19:34,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335086799] [2021-12-18 15:19:34,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:19:34,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:19:34,386 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 15:19:34,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1833603228] [2021-12-18 15:19:34,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:19:34,386 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 15:19:34,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 15:19:34,388 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 15:19:34,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-18 15:19:36,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:19:36,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 11683 conjuncts, 127 conjunts are in the unsatisfiable core [2021-12-18 15:19:36,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 15:19:36,700 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-18 15:19:38,766 WARN L860 $PredicateComparison]: unable to prove that (exists ((atomic_set_~v.offset Int)) (= |c_#memory_int| (store |c_old(#memory_int)| |c_atomic_set_#in~v.base| (store (select |c_old(#memory_int)| |c_atomic_set_#in~v.base|) atomic_set_~v.offset |c_atomic_set_#in~i|)))) is different from true [2021-12-18 15:19:38,796 INFO L354 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2021-12-18 15:19:38,796 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2021-12-18 15:19:38,895 INFO L354 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2021-12-18 15:19:38,895 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2021-12-18 15:19:39,028 INFO L354 Elim1Store]: treesize reduction 84, result has 18.4 percent of original size [2021-12-18 15:19:39,029 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 31 [2021-12-18 15:19:39,053 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-12-18 15:19:39,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-12-18 15:19:39,410 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 455 trivial. 2 not checked. [2021-12-18 15:19:39,410 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 15:19:42,402 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_atomic_set_~v.offset_16 Int)) (= (select (store (select |c_#memory_int| |c_ULTIMATE.start_uvc_probe_~dev~1#1.base|) v_atomic_set_~v.offset_16 0) (+ |c_ULTIMATE.start_uvc_probe_~dev~1#1.offset| 2726)) 0)) is different from false [2021-12-18 15:19:42,404 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:19:42,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335086799] [2021-12-18 15:19:42,404 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 15:19:42,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1833603228] [2021-12-18 15:19:42,404 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1833603228] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 15:19:42,404 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-12-18 15:19:42,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2021-12-18 15:19:42,404 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437133838] [2021-12-18 15:19:42,404 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-12-18 15:19:42,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-18 15:19:42,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:19:42,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-18 15:19:42,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=396, Unknown=2, NotChecked=82, Total=552 [2021-12-18 15:19:42,406 INFO L87 Difference]: Start difference. First operand 5301 states and 7506 transitions. Second operand has 14 states, 13 states have (on average 10.23076923076923) internal successors, (133), 13 states have internal predecessors, (133), 6 states have call successors, (34), 3 states have call predecessors, (34), 7 states have return successors, (34), 7 states have call predecessors, (34), 6 states have call successors, (34) [2021-12-18 15:19:44,532 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:19:46,552 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:19:48,570 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:19:50,588 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:19:52,606 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:19:54,628 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:19:56,582 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:19:58,608 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:20:07,687 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:20:09,695 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:20:11,706 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:20:13,749 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:20:15,755 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:20:17,790 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:20:19,797 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:20:21,815 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:20:26,657 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:21:12,487 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:21:15,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:21:15,795 INFO L93 Difference]: Finished difference Result 7621 states and 10857 transitions. [2021-12-18 15:21:15,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-18 15:21:15,795 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 10.23076923076923) internal successors, (133), 13 states have internal predecessors, (133), 6 states have call successors, (34), 3 states have call predecessors, (34), 7 states have return successors, (34), 7 states have call predecessors, (34), 6 states have call successors, (34) Word has length 295 [2021-12-18 15:21:15,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:21:15,811 INFO L225 Difference]: With dead ends: 7621 [2021-12-18 15:21:15,811 INFO L226 Difference]: Without dead ends: 6204 [2021-12-18 15:21:15,817 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 338 SyntacticMatches, 8 SemanticMatches, 26 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=100, Invalid=555, Unknown=3, NotChecked=98, Total=756 [2021-12-18 15:21:15,818 INFO L933 BasicCegarLoop]: 3876 mSDtfsCounter, 1129 mSDsluCounter, 23050 mSDsCounter, 0 mSdLazyCounter, 17977 mSolverCounterSat, 650 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 83.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1277 SdHoareTripleChecker+Valid, 26926 SdHoareTripleChecker+Invalid, 24996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 650 IncrementalHoareTripleChecker+Valid, 17977 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 6353 IncrementalHoareTripleChecker+Unchecked, 88.4s IncrementalHoareTripleChecker+Time [2021-12-18 15:21:15,818 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1277 Valid, 26926 Invalid, 24996 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [650 Valid, 17977 Invalid, 16 Unknown, 6353 Unchecked, 88.4s Time] [2021-12-18 15:21:15,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6204 states. [2021-12-18 15:21:15,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6204 to 5490. [2021-12-18 15:21:15,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5490 states, 4205 states have (on average 1.3712247324613556) internal successors, (5766), 4267 states have internal predecessors, (5766), 987 states have call successors, (987), 287 states have call predecessors, (987), 294 states have return successors, (1062), 967 states have call predecessors, (1062), 980 states have call successors, (1062) [2021-12-18 15:21:16,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5490 states to 5490 states and 7815 transitions. [2021-12-18 15:21:16,005 INFO L78 Accepts]: Start accepts. Automaton has 5490 states and 7815 transitions. Word has length 295 [2021-12-18 15:21:16,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:21:16,005 INFO L470 AbstractCegarLoop]: Abstraction has 5490 states and 7815 transitions. [2021-12-18 15:21:16,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 10.23076923076923) internal successors, (133), 13 states have internal predecessors, (133), 6 states have call successors, (34), 3 states have call predecessors, (34), 7 states have return successors, (34), 7 states have call predecessors, (34), 6 states have call successors, (34) [2021-12-18 15:21:16,005 INFO L276 IsEmpty]: Start isEmpty. Operand 5490 states and 7815 transitions. [2021-12-18 15:21:16,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2021-12-18 15:21:16,009 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:21:16,009 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:21:16,054 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-18 15:21:16,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-12-18 15:21:16,224 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [uvc_deleteErr0ASSERT_VIOLATIONERROR_FUNCTION, uvc_deleteErr1ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 15:21:16,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:21:16,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1391945250, now seen corresponding path program 1 times [2021-12-18 15:21:16,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:21:16,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25327844] [2021-12-18 15:21:16,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:21:16,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:21:16,397 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 15:21:16,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [65034999] [2021-12-18 15:21:16,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:21:16,397 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 15:21:16,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 15:21:16,398 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 15:21:16,399 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-18 15:21:18,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:21:18,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 11731 conjuncts, 129 conjunts are in the unsatisfiable core [2021-12-18 15:21:18,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 15:21:18,767 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-18 15:21:20,825 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_4777 Int) (atomic_set_~v.offset Int)) (and (<= atomic_set_~v.offset |c_atomic_set_#in~v.offset|) (= |c_#memory_int| (store |c_old(#memory_int)| |c_atomic_set_#in~v.base| (store (select |c_old(#memory_int)| |c_atomic_set_#in~v.base|) atomic_set_~v.offset v_ArrVal_4777))))) is different from true [2021-12-18 15:21:20,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-18 15:21:20,859 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-12-18 15:21:20,981 INFO L354 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2021-12-18 15:21:20,981 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2021-12-18 15:21:21,165 INFO L354 Elim1Store]: treesize reduction 84, result has 18.4 percent of original size [2021-12-18 15:21:21,165 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 31 [2021-12-18 15:21:21,207 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-12-18 15:21:21,207 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-12-18 15:21:21,299 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-12-18 15:21:21,299 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-12-18 15:21:21,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-18 15:21:21,468 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-12-18 15:21:21,526 INFO L354 Elim1Store]: treesize reduction 84, result has 18.4 percent of original size [2021-12-18 15:21:21,527 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 31 [2021-12-18 15:21:21,931 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 455 trivial. 2 not checked. [2021-12-18 15:21:21,932 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-18 15:21:25,365 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_#Ultimate.C_strcpy_#t~offset3371#1_8| Int) (v_ArrVal_4789 Int) (|v_ULTIMATE.start_#Ultimate.C_strcpy_dest#1.offset_6| Int)) (or (< (+ |c_ULTIMATE.start_uvc_probe_~dev~1#1.offset| 2044) |v_ULTIMATE.start_#Ultimate.C_strcpy_dest#1.offset_6|) (= (select (store (select |c_#memory_int| |c_ULTIMATE.start_uvc_probe_~dev~1#1.base|) (+ |v_ULTIMATE.start_#Ultimate.C_strcpy_#t~offset3371#1_8| |v_ULTIMATE.start_#Ultimate.C_strcpy_dest#1.offset_6|) v_ArrVal_4789) (+ |c_ULTIMATE.start_uvc_probe_~dev~1#1.offset| 2726)) 0) (< 0 |v_ULTIMATE.start_#Ultimate.C_strcpy_#t~offset3371#1_8|))) is different from false [2021-12-18 15:21:25,534 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 15:21:25,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25327844] [2021-12-18 15:21:25,534 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-18 15:21:25,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [65034999] [2021-12-18 15:21:25,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [65034999] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-18 15:21:25,534 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-12-18 15:21:25,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2021-12-18 15:21:25,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926553712] [2021-12-18 15:21:25,535 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-12-18 15:21:25,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-18 15:21:25,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 15:21:25,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-18 15:21:25,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=433, Unknown=2, NotChecked=86, Total=600 [2021-12-18 15:21:25,536 INFO L87 Difference]: Start difference. First operand 5490 states and 7815 transitions. Second operand has 14 states, 13 states have (on average 10.461538461538462) internal successors, (136), 13 states have internal predecessors, (136), 5 states have call successors, (35), 3 states have call predecessors, (35), 7 states have return successors, (35), 6 states have call predecessors, (35), 5 states have call successors, (35) [2021-12-18 15:21:27,665 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:21:29,686 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:21:31,705 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:21:33,722 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:21:35,741 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:21:37,760 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:21:39,780 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:21:41,796 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:21:51,271 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:21:57,374 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:22:50,250 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:22:51,591 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 15:22:54,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 15:22:54,584 INFO L93 Difference]: Finished difference Result 7912 states and 11298 transitions. [2021-12-18 15:22:54,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-18 15:22:54,585 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 10.461538461538462) internal successors, (136), 13 states have internal predecessors, (136), 5 states have call successors, (35), 3 states have call predecessors, (35), 7 states have return successors, (35), 6 states have call predecessors, (35), 5 states have call successors, (35) Word has length 300 [2021-12-18 15:22:54,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 15:22:54,601 INFO L225 Difference]: With dead ends: 7912 [2021-12-18 15:22:54,602 INFO L226 Difference]: Without dead ends: 6487 [2021-12-18 15:22:54,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 303 SyntacticMatches, 7 SemanticMatches, 26 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=100, Invalid=555, Unknown=3, NotChecked=98, Total=756 [2021-12-18 15:22:54,608 INFO L933 BasicCegarLoop]: 3852 mSDtfsCounter, 1232 mSDsluCounter, 22125 mSDsCounter, 0 mSdLazyCounter, 19203 mSolverCounterSat, 662 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 77.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1382 SdHoareTripleChecker+Valid, 25977 SdHoareTripleChecker+Invalid, 26658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 662 IncrementalHoareTripleChecker+Valid, 19203 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 6783 IncrementalHoareTripleChecker+Unchecked, 84.0s IncrementalHoareTripleChecker+Time [2021-12-18 15:22:54,608 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1382 Valid, 25977 Invalid, 26658 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [662 Valid, 19203 Invalid, 10 Unknown, 6783 Unchecked, 84.0s Time] [2021-12-18 15:22:54,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6487 states. [2021-12-18 15:22:54,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6487 to 5751. [2021-12-18 15:22:54,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5751 states, 4436 states have (on average 1.37917042380523) internal successors, (6118), 4502 states have internal predecessors, (6118), 1014 states have call successors, (1014), 289 states have call predecessors, (1014), 297 states have return successors, (1116), 992 states have call predecessors, (1116), 1007 states have call successors, (1116) [2021-12-18 15:22:54,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5751 states to 5751 states and 8248 transitions. [2021-12-18 15:22:54,927 INFO L78 Accepts]: Start accepts. Automaton has 5751 states and 8248 transitions. Word has length 300 [2021-12-18 15:22:54,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 15:22:54,928 INFO L470 AbstractCegarLoop]: Abstraction has 5751 states and 8248 transitions. [2021-12-18 15:22:54,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 10.461538461538462) internal successors, (136), 13 states have internal predecessors, (136), 5 states have call successors, (35), 3 states have call predecessors, (35), 7 states have return successors, (35), 6 states have call predecessors, (35), 5 states have call successors, (35) [2021-12-18 15:22:54,928 INFO L276 IsEmpty]: Start isEmpty. Operand 5751 states and 8248 transitions. [2021-12-18 15:22:54,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2021-12-18 15:22:54,932 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 15:22:54,933 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 15:22:54,978 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-18 15:22:55,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 15:22:55,159 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [uvc_deleteErr0ASSERT_VIOLATIONERROR_FUNCTION, uvc_deleteErr1ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 15:22:55,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 15:22:55,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1302766333, now seen corresponding path program 1 times [2021-12-18 15:22:55,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 15:22:55,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346324940] [2021-12-18 15:22:55,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:22:55,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 15:22:55,329 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-18 15:22:55,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1913253672] [2021-12-18 15:22:55,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 15:22:55,330 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-18 15:22:55,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 15:22:55,331 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-18 15:22:55,332 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-18 15:22:57,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 15:22:57,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 11748 conjuncts, 132 conjunts are in the unsatisfiable core [2021-12-18 15:22:57,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-18 15:22:57,605 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-12-18 15:22:59,681 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_5339 Int) (atomic_set_~v.offset Int)) (and (<= atomic_set_~v.offset |c_atomic_set_#in~v.offset|) (= |c_#memory_int| (store |c_old(#memory_int)| |c_atomic_set_#in~v.base| (store (select |c_old(#memory_int)| |c_atomic_set_#in~v.base|) atomic_set_~v.offset v_ArrVal_5339))))) is different from true [2021-12-18 15:22:59,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-18 15:22:59,715 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2021-12-18 15:22:59,915 INFO L354 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2021-12-18 15:22:59,916 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2021-12-18 15:23:00,149 INFO L354 Elim1Store]: treesize reduction 84, result has 18.4 percent of original size [2021-12-18 15:23:00,149 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 31 [2021-12-18 15:23:00,189 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-12-18 15:23:00,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-12-18 15:23:00,280 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-12-18 15:23:00,280 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 22 [2021-12-18 15:23:00,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-18 15:23:00,455 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-12-18 15:23:00,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-12-18 15:23:00,544 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-12-18 15:23:00,603 INFO L354 Elim1Store]: treesize reduction 84, result has 18.4 percent of original size [2021-12-18 15:23:00,603 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 31 [2021-12-18 15:23:01,067 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 455 trivial. 2 not checked. [2021-12-18 15:23:01,067 INFO L328 TraceCheckSpWp]: Computing backward predicates... Killed by 15