./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 5b36d44f Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-challenges/linux-3.14_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 0.2.1-wip.dd.seqcomp-5b36d44 [2021-11-07 19:49:06,679 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 19:49:06,680 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 19:49:06,727 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 19:49:06,728 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 19:49:06,729 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 19:49:06,729 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 19:49:06,730 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 19:49:06,731 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 19:49:06,732 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 19:49:06,732 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 19:49:06,733 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 19:49:06,733 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 19:49:06,734 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 19:49:06,735 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 19:49:06,736 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 19:49:06,736 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 19:49:06,737 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 19:49:06,738 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 19:49:06,739 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 19:49:06,740 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 19:49:06,745 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 19:49:06,746 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 19:49:06,748 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 19:49:06,749 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 19:49:06,753 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 19:49:06,753 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 19:49:06,754 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 19:49:06,754 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 19:49:06,755 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 19:49:06,755 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 19:49:06,755 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 19:49:06,756 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 19:49:06,757 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 19:49:06,758 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 19:49:06,758 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 19:49:06,759 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 19:49:06,759 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 19:49:06,760 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 19:49:06,760 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 19:49:06,761 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 19:49:06,761 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-07 19:49:06,792 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 19:49:06,792 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 19:49:06,792 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 19:49:06,792 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 19:49:06,793 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 19:49:06,793 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 19:49:06,793 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 19:49:06,794 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 19:49:06,794 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 19:49:06,794 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 19:49:06,794 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 19:49:06,794 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 19:49:06,794 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 19:49:06,794 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 19:49:06,795 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 19:49:06,795 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 19:49:06,795 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 19:49:06,795 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 19:49:06,795 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 19:49:06,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 19:49:06,795 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 19:49:06,796 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 19:49:06,796 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 19:49:06,796 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 19:49:06,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 19:49:06,796 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 19:49:06,796 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 19:49:06,796 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 19:49:06,796 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 19:49:06,797 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e91317f289ae08033f6458d219d3b71fd8a7791b2777f777b60194968c497219 [2021-11-07 19:49:07,002 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 19:49:07,022 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 19:49:07,023 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 19:49:07,024 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 19:49:07,026 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 19:49:07,027 INFO L432 ainManager$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 [2021-11-07 19:49:07,067 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ced9204f3/cbcaa2f0088745a5af64bbc1aa68de78/FLAGdf5153d8c [2021-11-07 19:49:07,776 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 19:49:07,777 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 [2021-11-07 19:49:07,828 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ced9204f3/cbcaa2f0088745a5af64bbc1aa68de78/FLAGdf5153d8c [2021-11-07 19:49:08,101 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ced9204f3/cbcaa2f0088745a5af64bbc1aa68de78 [2021-11-07 19:49:08,135 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 19:49:08,136 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 19:49:08,138 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 19:49:08,138 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 19:49:08,140 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 19:49:08,141 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:49:08" (1/1) ... [2021-11-07 19:49:08,141 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dc73d96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:49:08, skipping insertion in model container [2021-11-07 19:49:08,142 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:49:08" (1/1) ... [2021-11-07 19:49:08,146 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 19:49:08,254 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 19:49:11,733 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i[580326,580339] [2021-11-07 19:49:11,739 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i[580473,580486] [2021-11-07 19:49:11,742 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i[580612,580625] [2021-11-07 19:49:11,742 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i[580770,580783] [2021-11-07 19:49:11,773 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 19:49:11,863 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 19:49:12,424 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i[580326,580339] [2021-11-07 19:49:12,425 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i[580473,580486] [2021-11-07 19:49:12,426 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i[580612,580625] [2021-11-07 19:49:12,426 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i[580770,580783] [2021-11-07 19:49:12,430 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 19:49:12,554 INFO L208 MainTranslator]: Completed translation [2021-11-07 19:49:12,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:49:12 WrapperNode [2021-11-07 19:49:12,554 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 19:49:12,555 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 19:49:12,555 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 19:49:12,555 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 19:49:12,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:49:12" (1/1) ... [2021-11-07 19:49:12,760 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:49:12" (1/1) ... [2021-11-07 19:49:13,817 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 19:49:13,818 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 19:49:13,818 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 19:49:13,818 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 19:49:13,825 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:49:12" (1/1) ... [2021-11-07 19:49:13,825 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:49:12" (1/1) ... [2021-11-07 19:49:14,075 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:49:12" (1/1) ... [2021-11-07 19:49:14,076 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:49:12" (1/1) ... [2021-11-07 19:49:14,520 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:49:12" (1/1) ... [2021-11-07 19:49:14,580 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:49:12" (1/1) ... [2021-11-07 19:49:14,656 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:49:12" (1/1) ... [2021-11-07 19:49:14,915 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 19:49:14,927 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 19:49:14,927 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 19:49:14,928 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 19:49:14,929 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:49:12" (1/1) ... [2021-11-07 19:49:14,934 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 19:49:14,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 19:49:14,981 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 19:49:15,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 19:49:15,062 INFO L130 BoogieDeclarations]: Found specification of procedure __put_user_bad [2021-11-07 19:49:15,062 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-07 19:49:15,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 19:49:15,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-07 19:49:15,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-07 19:49:15,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 19:49:15,062 INFO L130 BoogieDeclarations]: Found specification of procedure __get_user_bad [2021-11-07 19:49:15,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 19:49:15,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 19:49:15,062 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-07 19:49:15,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 19:49:15,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 19:49:15,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-07 19:49:15,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-07 19:49:15,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 19:49:15,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 19:49:15,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 19:49:15,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 19:49:15,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 19:53:28,229 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4931: assume 1 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-07 19:53:28,229 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4932: assume !(1 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-07 19:53:28,230 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4848: assume 1 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-07 19:53:28,230 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4849: assume !(1 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-07 19:53:28,230 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10684-1: __copy_from_user_nocheck_#t~ret1180 := copy_user_generic_#res;__copy_from_user_nocheck_~tmp___2~10 := __copy_from_user_nocheck_#t~ret1180;havoc __copy_from_user_nocheck_#t~ret1180;__copy_from_user_nocheck_#res := (if __copy_from_user_nocheck_~tmp___2~10 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_from_user_nocheck_~tmp___2~10 % 18446744073709551616 % 4294967296 else __copy_from_user_nocheck_~tmp___2~10 % 18446744073709551616 % 4294967296 - 4294967296); [2021-11-07 19:53:28,230 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10684-7: __copy_to_user_nocheck_#t~ret1185 := copy_user_generic_#res;__copy_to_user_nocheck_~tmp___2~11 := __copy_to_user_nocheck_#t~ret1185;havoc __copy_to_user_nocheck_#t~ret1185;__copy_to_user_nocheck_#res := (if __copy_to_user_nocheck_~tmp___2~11 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_to_user_nocheck_~tmp___2~11 % 18446744073709551616 % 4294967296 else __copy_to_user_nocheck_~tmp___2~11 % 18446744073709551616 % 4294967296 - 4294967296); [2021-11-07 19:53:28,230 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10684-3: __copy_from_user_nocheck_#t~ret1180 := copy_user_generic_#res;__copy_from_user_nocheck_~tmp___2~10 := __copy_from_user_nocheck_#t~ret1180;havoc __copy_from_user_nocheck_#t~ret1180;__copy_from_user_nocheck_#res := (if __copy_from_user_nocheck_~tmp___2~10 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_from_user_nocheck_~tmp___2~10 % 18446744073709551616 % 4294967296 else __copy_from_user_nocheck_~tmp___2~10 % 18446744073709551616 % 4294967296 - 4294967296); [2021-11-07 19:53:28,231 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10684-5: __copy_to_user_nocheck_#t~ret1185 := copy_user_generic_#res;__copy_to_user_nocheck_~tmp___2~11 := __copy_to_user_nocheck_#t~ret1185;havoc __copy_to_user_nocheck_#t~ret1185;__copy_to_user_nocheck_#res := (if __copy_to_user_nocheck_~tmp___2~11 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_to_user_nocheck_~tmp___2~11 % 18446744073709551616 % 4294967296 else __copy_to_user_nocheck_~tmp___2~11 % 18446744073709551616 % 4294967296 - 4294967296); [2021-11-07 19:53:28,231 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10703-1: __copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-07 19:53:28,231 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10703: __copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-07 19:53:28,231 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10706: assume 2 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-07 19:53:28,231 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10706: assume !(2 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-07 19:53:28,231 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10706-1: assume 2 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-07 19:53:28,232 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10706-1: assume !(2 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-07 19:53:28,241 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10707-1: __copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-07 19:53:28,242 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10707: __copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-07 19:53:28,242 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10710-1: assume 4 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-07 19:53:28,242 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10710-1: assume !(4 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-07 19:53:28,242 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10710: assume 4 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-07 19:53:28,242 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10710: assume !(4 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-07 19:53:28,242 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10711-1: __copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-07 19:53:28,242 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10711: __copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-07 19:53:28,243 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10714: assume 8 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-07 19:53:28,243 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10714: assume !(8 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-07 19:53:28,243 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10714-1: assume 8 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-07 19:53:28,243 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10714-1: assume !(8 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-07 19:53:28,243 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10715-1: __copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-07 19:53:28,243 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10715: __copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-07 19:53:28,244 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10718-1: assume 10 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-07 19:53:28,244 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10718-1: assume !(10 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-07 19:53:28,244 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10718: assume 10 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-07 19:53:28,244 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10718: assume !(10 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-07 19:53:28,244 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10719-1: ldv__builtin_expect_#in~exp, ldv__builtin_expect_#in~c := (if 0 != __copy_from_user_nocheck_~ret~17 then 1 else 0), 0;havoc ldv__builtin_expect_#res;havoc ldv__builtin_expect_~exp, ldv__builtin_expect_~c;ldv__builtin_expect_~exp := ldv__builtin_expect_#in~exp;ldv__builtin_expect_~c := ldv__builtin_expect_#in~c;ldv__builtin_expect_#res := ldv__builtin_expect_~exp; [2021-11-07 19:53:28,244 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10719: ldv__builtin_expect_#in~exp, ldv__builtin_expect_#in~c := (if 0 != __copy_from_user_nocheck_~ret~17 then 1 else 0), 0;havoc ldv__builtin_expect_#res;havoc ldv__builtin_expect_~exp, ldv__builtin_expect_~c;ldv__builtin_expect_~exp := ldv__builtin_expect_#in~exp;ldv__builtin_expect_~c := ldv__builtin_expect_#in~c;ldv__builtin_expect_#res := ldv__builtin_expect_~exp; [2021-11-07 19:53:28,244 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10722: assume 16 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-07 19:53:28,245 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10722: assume !(16 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-07 19:53:28,245 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10722-1: assume 16 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-07 19:53:28,245 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10722-1: assume !(16 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-07 19:53:28,245 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10723-1: ldv__builtin_expect_#in~exp, ldv__builtin_expect_#in~c := (if 0 != __copy_from_user_nocheck_~ret~17 then 1 else 0), 0;havoc ldv__builtin_expect_#res;havoc ldv__builtin_expect_~exp, ldv__builtin_expect_~c;ldv__builtin_expect_~exp := ldv__builtin_expect_#in~exp;ldv__builtin_expect_~c := ldv__builtin_expect_#in~c;ldv__builtin_expect_#res := ldv__builtin_expect_~exp; [2021-11-07 19:53:28,245 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10723: ldv__builtin_expect_#in~exp, ldv__builtin_expect_#in~c := (if 0 != __copy_from_user_nocheck_~ret~17 then 1 else 0), 0;havoc ldv__builtin_expect_#res;havoc ldv__builtin_expect_~exp, ldv__builtin_expect_~c;ldv__builtin_expect_~exp := ldv__builtin_expect_#in~exp;ldv__builtin_expect_~c := ldv__builtin_expect_#in~c;ldv__builtin_expect_#res := ldv__builtin_expect_~exp; [2021-11-07 19:53:28,246 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10726-1: copy_user_generic_#in~to.base, copy_user_generic_#in~to.offset, copy_user_generic_#in~from.base, copy_user_generic_#in~from.offset, copy_user_generic_#in~len := __copy_from_user_nocheck_~dst.base, __copy_from_user_nocheck_~dst.offset, __copy_from_user_nocheck_~src.base, __copy_from_user_nocheck_~src.offset, __copy_from_user_nocheck_~size;havoc copy_user_generic_#res;havoc copy_user_generic_~to.base, copy_user_generic_~to.offset, copy_user_generic_~from.base, copy_user_generic_~from.offset, copy_user_generic_~len, copy_user_generic_~ret~16;copy_user_generic_~to.base, copy_user_generic_~to.offset := copy_user_generic_#in~to.base, copy_user_generic_#in~to.offset;copy_user_generic_~from.base, copy_user_generic_~from.offset := copy_user_generic_#in~from.base, copy_user_generic_#in~from.offset;copy_user_generic_~len := copy_user_generic_#in~len;havoc copy_user_generic_~ret~16;copy_user_generic_#res := copy_user_generic_~ret~16 % 4294967296; [2021-11-07 19:53:28,246 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10726: copy_user_generic_#in~to.base, copy_user_generic_#in~to.offset, copy_user_generic_#in~from.base, copy_user_generic_#in~from.offset, copy_user_generic_#in~len := __copy_from_user_nocheck_~dst.base, __copy_from_user_nocheck_~dst.offset, __copy_from_user_nocheck_~src.base, __copy_from_user_nocheck_~src.offset, __copy_from_user_nocheck_~size;havoc copy_user_generic_#res;havoc copy_user_generic_~to.base, copy_user_generic_~to.offset, copy_user_generic_~from.base, copy_user_generic_~from.offset, copy_user_generic_~len, copy_user_generic_~ret~16;copy_user_generic_~to.base, copy_user_generic_~to.offset := copy_user_generic_#in~to.base, copy_user_generic_#in~to.offset;copy_user_generic_~from.base, copy_user_generic_~from.offset := copy_user_generic_#in~from.base, copy_user_generic_#in~from.offset;copy_user_generic_~len := copy_user_generic_#in~len;havoc copy_user_generic_~ret~16;copy_user_generic_#res := copy_user_generic_~ret~16 % 4294967296; [2021-11-07 19:53:28,246 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10754: assume 0 != __copy_from_user_nocheck_~tmp___0~25;__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-07 19:53:28,246 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10754: assume !(0 != __copy_from_user_nocheck_~tmp___0~25);__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-07 19:53:28,246 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10754-1: assume 0 != __copy_from_user_nocheck_~tmp___0~25;__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-07 19:53:28,247 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10754-1: assume !(0 != __copy_from_user_nocheck_~tmp___0~25);__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-07 19:53:28,247 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10769-1: assume 0 != __copy_from_user_nocheck_~tmp___1~15;__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-07 19:53:28,247 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10769-1: assume !(0 != __copy_from_user_nocheck_~tmp___1~15);__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-07 19:53:28,247 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10769: assume 0 != __copy_from_user_nocheck_~tmp___1~15;__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-07 19:53:28,247 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10769: assume !(0 != __copy_from_user_nocheck_~tmp___1~15);__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-07 19:53:28,248 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10812: __copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-07 19:53:28,248 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10812-1: __copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-07 19:53:28,248 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10815-1: assume 2 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-07 19:53:28,248 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10815-1: assume !(2 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-07 19:53:28,248 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10815: assume 2 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-07 19:53:28,248 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10815: assume !(2 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-07 19:53:28,248 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10816: __copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-07 19:53:28,249 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10816-1: __copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-07 19:53:28,249 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10819-1: assume 4 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-07 19:53:28,249 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10819-1: assume !(4 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-07 19:53:28,249 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10819: assume 4 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-07 19:53:28,249 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10819: assume !(4 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-07 19:53:28,249 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10820: __copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-07 19:53:28,249 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10820-1: __copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-07 19:53:28,254 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10823-1: assume 8 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-07 19:53:28,254 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10823-1: assume !(8 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-07 19:53:28,254 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10823: assume 8 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-07 19:53:28,254 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10823: assume !(8 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-07 19:53:28,255 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10824: __copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-07 19:53:28,255 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10824-1: __copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-07 19:53:28,255 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10827-1: assume 10 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-07 19:53:28,255 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10827-1: assume !(10 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-07 19:53:28,255 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10827: assume 10 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-07 19:53:28,255 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10827: assume !(10 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-07 19:53:28,256 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10828: ldv__builtin_expect_#in~exp, ldv__builtin_expect_#in~c := (if 0 != __copy_to_user_nocheck_~ret~18 then 1 else 0), 0;havoc ldv__builtin_expect_#res;havoc ldv__builtin_expect_~exp, ldv__builtin_expect_~c;ldv__builtin_expect_~exp := ldv__builtin_expect_#in~exp;ldv__builtin_expect_~c := ldv__builtin_expect_#in~c;ldv__builtin_expect_#res := ldv__builtin_expect_~exp; [2021-11-07 19:53:28,256 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10828-1: ldv__builtin_expect_#in~exp, ldv__builtin_expect_#in~c := (if 0 != __copy_to_user_nocheck_~ret~18 then 1 else 0), 0;havoc ldv__builtin_expect_#res;havoc ldv__builtin_expect_~exp, ldv__builtin_expect_~c;ldv__builtin_expect_~exp := ldv__builtin_expect_#in~exp;ldv__builtin_expect_~c := ldv__builtin_expect_#in~c;ldv__builtin_expect_#res := ldv__builtin_expect_~exp; [2021-11-07 19:53:28,256 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10831-1: assume 16 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-07 19:53:28,256 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10831-1: assume !(16 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-07 19:53:28,256 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10831: assume 16 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-07 19:53:28,256 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10831: assume !(16 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-07 19:53:28,256 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10832: ldv__builtin_expect_#in~exp, ldv__builtin_expect_#in~c := (if 0 != __copy_to_user_nocheck_~ret~18 then 1 else 0), 0;havoc ldv__builtin_expect_#res;havoc ldv__builtin_expect_~exp, ldv__builtin_expect_~c;ldv__builtin_expect_~exp := ldv__builtin_expect_#in~exp;ldv__builtin_expect_~c := ldv__builtin_expect_#in~c;ldv__builtin_expect_#res := ldv__builtin_expect_~exp; [2021-11-07 19:53:28,256 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10832-1: ldv__builtin_expect_#in~exp, ldv__builtin_expect_#in~c := (if 0 != __copy_to_user_nocheck_~ret~18 then 1 else 0), 0;havoc ldv__builtin_expect_#res;havoc ldv__builtin_expect_~exp, ldv__builtin_expect_~c;ldv__builtin_expect_~exp := ldv__builtin_expect_#in~exp;ldv__builtin_expect_~c := ldv__builtin_expect_#in~c;ldv__builtin_expect_#res := ldv__builtin_expect_~exp; [2021-11-07 19:53:28,257 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10835-1: copy_user_generic_#in~to.base, copy_user_generic_#in~to.offset, copy_user_generic_#in~from.base, copy_user_generic_#in~from.offset, copy_user_generic_#in~len := __copy_to_user_nocheck_~dst.base, __copy_to_user_nocheck_~dst.offset, __copy_to_user_nocheck_~src.base, __copy_to_user_nocheck_~src.offset, __copy_to_user_nocheck_~size;havoc copy_user_generic_#res;havoc copy_user_generic_~to.base, copy_user_generic_~to.offset, copy_user_generic_~from.base, copy_user_generic_~from.offset, copy_user_generic_~len, copy_user_generic_~ret~16;copy_user_generic_~to.base, copy_user_generic_~to.offset := copy_user_generic_#in~to.base, copy_user_generic_#in~to.offset;copy_user_generic_~from.base, copy_user_generic_~from.offset := copy_user_generic_#in~from.base, copy_user_generic_#in~from.offset;copy_user_generic_~len := copy_user_generic_#in~len;havoc copy_user_generic_~ret~16;copy_user_generic_#res := copy_user_generic_~ret~16 % 4294967296; [2021-11-07 19:53:28,257 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10835: copy_user_generic_#in~to.base, copy_user_generic_#in~to.offset, copy_user_generic_#in~from.base, copy_user_generic_#in~from.offset, copy_user_generic_#in~len := __copy_to_user_nocheck_~dst.base, __copy_to_user_nocheck_~dst.offset, __copy_to_user_nocheck_~src.base, __copy_to_user_nocheck_~src.offset, __copy_to_user_nocheck_~size;havoc copy_user_generic_#res;havoc copy_user_generic_~to.base, copy_user_generic_~to.offset, copy_user_generic_~from.base, copy_user_generic_~from.offset, copy_user_generic_~len, copy_user_generic_~ret~16;copy_user_generic_~to.base, copy_user_generic_~to.offset := copy_user_generic_#in~to.base, copy_user_generic_#in~to.offset;copy_user_generic_~from.base, copy_user_generic_~from.offset := copy_user_generic_#in~from.base, copy_user_generic_#in~from.offset;copy_user_generic_~len := copy_user_generic_#in~len;havoc copy_user_generic_~ret~16;copy_user_generic_#res := copy_user_generic_~ret~16 % 4294967296; [2021-11-07 19:53:28,257 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10858: assume 0 != __copy_to_user_nocheck_~tmp___0~26;__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-07 19:53:28,258 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10858: assume !(0 != __copy_to_user_nocheck_~tmp___0~26);__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-07 19:53:28,258 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10858-1: assume 0 != __copy_to_user_nocheck_~tmp___0~26;__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-07 19:53:28,258 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10858-1: assume !(0 != __copy_to_user_nocheck_~tmp___0~26);__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-07 19:53:28,258 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10872: assume 0 != __copy_to_user_nocheck_~tmp___1~16;__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-07 19:53:28,258 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10872: assume !(0 != __copy_to_user_nocheck_~tmp___1~16);__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-07 19:53:28,258 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10872-1: assume 0 != __copy_to_user_nocheck_~tmp___1~16;__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-07 19:53:28,258 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L10872-1: assume !(0 != __copy_to_user_nocheck_~tmp___1~16);__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-07 19:53:28,259 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-07 19:53:28,260 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_entry_EMGentry_10_returnLabel: main_#res := 0; [2021-11-07 19:53:28,260 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5085: assume 1 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-07 19:53:28,260 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5086: assume !(1 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-07 19:53:28,261 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5034: assume 1 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-07 19:53:28,262 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5035: assume !(1 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-07 19:53:28,262 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L19808-8: __copy_from_user_nocheck_#t~ret1179 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret1179 && __copy_from_user_nocheck_#t~ret1179 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___1~15 := __copy_from_user_nocheck_#t~ret1179;havoc __copy_from_user_nocheck_#t~ret1179; [2021-11-07 19:53:28,263 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L19808-7: __copy_from_user_nocheck_#t~ret1178 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret1178 && __copy_from_user_nocheck_#t~ret1178 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___0~25 := __copy_from_user_nocheck_#t~ret1178;havoc __copy_from_user_nocheck_#t~ret1178; [2021-11-07 19:53:28,263 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L19808-12: __copy_to_user_nocheck_#t~ret1184 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret1184 && __copy_to_user_nocheck_#t~ret1184 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___1~16 := __copy_to_user_nocheck_#t~ret1184;havoc __copy_to_user_nocheck_#t~ret1184; [2021-11-07 19:53:28,263 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L19808-11: __copy_to_user_nocheck_#t~ret1183 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret1183 && __copy_to_user_nocheck_#t~ret1183 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___0~26 := __copy_to_user_nocheck_#t~ret1183;havoc __copy_to_user_nocheck_#t~ret1183; [2021-11-07 19:53:28,264 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L19808-14: __copy_to_user_nocheck_#t~ret1183 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret1183 && __copy_to_user_nocheck_#t~ret1183 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___0~26 := __copy_to_user_nocheck_#t~ret1183;havoc __copy_to_user_nocheck_#t~ret1183; [2021-11-07 19:53:28,264 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L19808-4: __copy_from_user_nocheck_#t~ret1179 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret1179 && __copy_from_user_nocheck_#t~ret1179 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___1~15 := __copy_from_user_nocheck_#t~ret1179;havoc __copy_from_user_nocheck_#t~ret1179; [2021-11-07 19:53:28,264 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L19808-3: __copy_from_user_nocheck_#t~ret1178 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret1178 && __copy_from_user_nocheck_#t~ret1178 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___0~25 := __copy_from_user_nocheck_#t~ret1178;havoc __copy_from_user_nocheck_#t~ret1178; [2021-11-07 19:53:28,265 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L19808-15: __copy_to_user_nocheck_#t~ret1184 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret1184 && __copy_to_user_nocheck_#t~ret1184 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___1~16 := __copy_to_user_nocheck_#t~ret1184;havoc __copy_to_user_nocheck_#t~ret1184; [2021-11-07 19:53:28,265 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L9339: #t~ret3581 := main_#res; [2021-11-07 19:53:28,297 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 19:53:28,298 INFO L299 CfgBuilder]: Removed 5389 assume(true) statements. [2021-11-07 19:53:28,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:53:28 BoogieIcfgContainer [2021-11-07 19:53:28,305 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 19:53:28,308 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 19:53:28,308 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 19:53:28,311 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 19:53:28,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:49:08" (1/3) ... [2021-11-07 19:53:28,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e09e967 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:53:28, skipping insertion in model container [2021-11-07 19:53:28,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:49:12" (2/3) ... [2021-11-07 19:53:28,312 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e09e967 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:53:28, skipping insertion in model container [2021-11-07 19:53:28,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:53:28" (3/3) ... [2021-11-07 19:53:28,313 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-usb-dev_drivers-media-usb-uvc-uvcvideo.cil.i [2021-11-07 19:53:28,316 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 19:53:28,317 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2021-11-07 19:53:28,369 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 19:53:28,375 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 19:53:28,375 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-11-07 19:53:28,440 INFO L276 IsEmpty]: Start isEmpty. Operand has 6451 states, 6444 states have (on average 1.3836126629422718) internal successors, (8916), 6450 states have internal predecessors, (8916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:53:28,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-07 19:53:28,446 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:53:28,446 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 19:53:28,447 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-07 19:53:28,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:53:28,451 INFO L85 PathProgramCache]: Analyzing trace with hash -94906379, now seen corresponding path program 1 times [2021-11-07 19:53:28,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:53:28,459 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996035619] [2021-11-07 19:53:28,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:53:28,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:53:29,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:53:29,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 19:53:29,365 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:53:29,365 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996035619] [2021-11-07 19:53:29,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996035619] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:53:29,365 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:53:29,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 19:53:29,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185783908] [2021-11-07 19:53:29,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:53:29,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 19:53:29,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:53:29,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 19:53:29,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 19:53:29,404 INFO L87 Difference]: Start difference. First operand has 6451 states, 6444 states have (on average 1.3836126629422718) internal successors, (8916), 6450 states have internal predecessors, (8916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:53:30,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:53:30,125 INFO L93 Difference]: Finished difference Result 19096 states and 26421 transitions. [2021-11-07 19:53:30,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 19:53:30,127 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-07 19:53:30,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:53:30,171 INFO L225 Difference]: With dead ends: 19096 [2021-11-07 19:53:30,171 INFO L226 Difference]: Without dead ends: 10734 [2021-11-07 19:53:30,189 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 69.99ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 19:53:30,191 INFO L933 BasicCegarLoop]: 8821 mSDtfsCounter, 8799 mSDsluCounter, 17500 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 309.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8799 SdHoareTripleChecker+Valid, 26321 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 46.24ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 348.60ms IncrementalHoareTripleChecker+Time [2021-11-07 19:53:30,192 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8799 Valid, 26321 Invalid, 46 Unknown, 0 Unchecked, 46.24ms Time], IncrementalHoareTripleChecker [12 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 348.60ms Time] [2021-11-07 19:53:30,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10734 states. [2021-11-07 19:53:30,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10734 to 10724. [2021-11-07 19:53:30,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10724 states, 10717 states have (on average 1.3554166277876272) internal successors, (14526), 10723 states have internal predecessors, (14526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:53:30,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10724 states to 10724 states and 14526 transitions. [2021-11-07 19:53:30,468 INFO L78 Accepts]: Start accepts. Automaton has 10724 states and 14526 transitions. Word has length 34 [2021-11-07 19:53:30,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:53:30,468 INFO L470 AbstractCegarLoop]: Abstraction has 10724 states and 14526 transitions. [2021-11-07 19:53:30,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:53:30,469 INFO L276 IsEmpty]: Start isEmpty. Operand 10724 states and 14526 transitions. [2021-11-07 19:53:30,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-07 19:53:30,470 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:53:30,470 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 19:53:30,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 19:53:30,471 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-07 19:53:30,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:53:30,471 INFO L85 PathProgramCache]: Analyzing trace with hash 492278546, now seen corresponding path program 1 times [2021-11-07 19:53:30,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:53:30,472 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429794433] [2021-11-07 19:53:30,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:53:30,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:53:30,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:53:31,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 19:53:31,103 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:53:31,103 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429794433] [2021-11-07 19:53:31,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429794433] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:53:31,103 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:53:31,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 19:53:31,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935910025] [2021-11-07 19:53:31,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:53:31,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 19:53:31,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:53:31,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 19:53:31,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 19:53:31,105 INFO L87 Difference]: Start difference. First operand 10724 states and 14526 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:53:31,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:53:31,816 INFO L93 Difference]: Finished difference Result 18361 states and 24743 transitions. [2021-11-07 19:53:31,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 19:53:31,817 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2021-11-07 19:53:31,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:53:31,884 INFO L225 Difference]: With dead ends: 18361 [2021-11-07 19:53:31,885 INFO L226 Difference]: Without dead ends: 18359 [2021-11-07 19:53:31,892 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 65.51ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 19:53:31,893 INFO L933 BasicCegarLoop]: 14388 mSDtfsCounter, 16469 mSDsluCounter, 22575 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 303.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 16469 SdHoareTripleChecker+Valid, 36963 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 42.01ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 344.33ms IncrementalHoareTripleChecker+Time [2021-11-07 19:53:31,893 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16469 Valid, 36963 Invalid, 37 Unknown, 0 Unchecked, 42.01ms Time], IncrementalHoareTripleChecker [4 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 344.33ms Time] [2021-11-07 19:53:31,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18359 states. [2021-11-07 19:53:32,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18359 to 10724. [2021-11-07 19:53:32,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10724 states, 10717 states have (on average 1.3553233180927498) internal successors, (14525), 10723 states have internal predecessors, (14525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:53:32,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10724 states to 10724 states and 14525 transitions. [2021-11-07 19:53:32,155 INFO L78 Accepts]: Start accepts. Automaton has 10724 states and 14525 transitions. Word has length 73 [2021-11-07 19:53:32,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:53:32,157 INFO L470 AbstractCegarLoop]: Abstraction has 10724 states and 14525 transitions. [2021-11-07 19:53:32,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:53:32,158 INFO L276 IsEmpty]: Start isEmpty. Operand 10724 states and 14525 transitions. [2021-11-07 19:53:32,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-07 19:53:32,164 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:53:32,164 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 19:53:32,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 19:53:32,165 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-07 19:53:32,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:53:32,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1764204462, now seen corresponding path program 1 times [2021-11-07 19:53:32,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:53:32,166 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730968434] [2021-11-07 19:53:32,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:53:32,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:53:32,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:53:32,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 19:53:32,690 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:53:32,690 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730968434] [2021-11-07 19:53:32,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730968434] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:53:32,690 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:53:32,690 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 19:53:32,690 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331802525] [2021-11-07 19:53:32,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:53:32,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 19:53:32,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:53:32,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 19:53:32,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 19:53:32,691 INFO L87 Difference]: Start difference. First operand 10724 states and 14525 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:53:33,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:53:33,304 INFO L93 Difference]: Finished difference Result 27906 states and 37615 transitions. [2021-11-07 19:53:33,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 19:53:33,304 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2021-11-07 19:53:33,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:53:33,342 INFO L225 Difference]: With dead ends: 27906 [2021-11-07 19:53:33,343 INFO L226 Difference]: Without dead ends: 20129 [2021-11-07 19:53:33,360 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 62.86ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 19:53:33,365 INFO L933 BasicCegarLoop]: 14496 mSDtfsCounter, 14659 mSDsluCounter, 16602 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.19ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 14659 SdHoareTripleChecker+Valid, 31098 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 31.81ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.67ms IncrementalHoareTripleChecker+Time [2021-11-07 19:53:33,365 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14659 Valid, 31098 Invalid, 9 Unknown, 0 Unchecked, 31.81ms Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 42.67ms Time] [2021-11-07 19:53:33,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20129 states. [2021-11-07 19:53:33,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20129 to 10728. [2021-11-07 19:53:33,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10728 states, 10721 states have (on average 1.3551907471317974) internal successors, (14529), 10727 states have internal predecessors, (14529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:53:33,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10728 states to 10728 states and 14529 transitions. [2021-11-07 19:53:33,615 INFO L78 Accepts]: Start accepts. Automaton has 10728 states and 14529 transitions. Word has length 104 [2021-11-07 19:53:33,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:53:33,616 INFO L470 AbstractCegarLoop]: Abstraction has 10728 states and 14529 transitions. [2021-11-07 19:53:33,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:53:33,617 INFO L276 IsEmpty]: Start isEmpty. Operand 10728 states and 14529 transitions. [2021-11-07 19:53:33,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-07 19:53:33,620 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:53:33,621 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 19:53:33,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 19:53:33,621 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-07 19:53:33,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:53:33,622 INFO L85 PathProgramCache]: Analyzing trace with hash 432109248, now seen corresponding path program 1 times [2021-11-07 19:53:33,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:53:33,622 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996188831] [2021-11-07 19:53:33,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:53:33,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:53:33,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:53:34,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 19:53:34,137 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:53:34,137 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996188831] [2021-11-07 19:53:34,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996188831] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:53:34,137 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:53:34,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 19:53:34,137 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329163617] [2021-11-07 19:53:34,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:53:34,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 19:53:34,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:53:34,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 19:53:34,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 19:53:34,138 INFO L87 Difference]: Start difference. First operand 10728 states and 14529 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:53:34,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:53:34,751 INFO L93 Difference]: Finished difference Result 33607 states and 45171 transitions. [2021-11-07 19:53:34,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 19:53:34,752 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-11-07 19:53:34,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:53:34,807 INFO L225 Difference]: With dead ends: 33607 [2021-11-07 19:53:34,807 INFO L226 Difference]: Without dead ends: 25984 [2021-11-07 19:53:34,829 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 135.02ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 19:53:34,831 INFO L933 BasicCegarLoop]: 8302 mSDtfsCounter, 24390 mSDsluCounter, 37086 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 24390 SdHoareTripleChecker+Valid, 45388 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 41.14ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53.93ms IncrementalHoareTripleChecker+Time [2021-11-07 19:53:34,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24390 Valid, 45388 Invalid, 14 Unknown, 0 Unchecked, 41.14ms Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 53.93ms Time] [2021-11-07 19:53:34,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25984 states. [2021-11-07 19:53:35,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25984 to 10734. [2021-11-07 19:53:35,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10734 states, 10727 states have (on average 1.3549920760697305) internal successors, (14535), 10733 states have internal predecessors, (14535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:53:35,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10734 states to 10734 states and 14535 transitions. [2021-11-07 19:53:35,140 INFO L78 Accepts]: Start accepts. Automaton has 10734 states and 14535 transitions. Word has length 114 [2021-11-07 19:53:35,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:53:35,140 INFO L470 AbstractCegarLoop]: Abstraction has 10734 states and 14535 transitions. [2021-11-07 19:53:35,140 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:53:35,141 INFO L276 IsEmpty]: Start isEmpty. Operand 10734 states and 14535 transitions. [2021-11-07 19:53:35,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-07 19:53:35,147 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:53:35,147 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 19:53:35,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 19:53:35,148 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-07 19:53:35,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:53:35,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1498969188, now seen corresponding path program 1 times [2021-11-07 19:53:35,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:53:35,149 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117493875] [2021-11-07 19:53:35,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:53:35,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:53:35,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:53:35,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 19:53:35,662 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:53:35,662 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117493875] [2021-11-07 19:53:35,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117493875] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:53:35,662 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:53:35,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 19:53:35,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434065329] [2021-11-07 19:53:35,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:53:35,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 19:53:35,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:53:35,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 19:53:35,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 19:53:35,664 INFO L87 Difference]: Start difference. First operand 10734 states and 14535 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:53:35,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:53:35,860 INFO L93 Difference]: Finished difference Result 21345 states and 28930 transitions. [2021-11-07 19:53:35,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 19:53:35,861 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-11-07 19:53:35,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:53:35,880 INFO L225 Difference]: With dead ends: 21345 [2021-11-07 19:53:35,880 INFO L226 Difference]: Without dead ends: 10736 [2021-11-07 19:53:35,897 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.16ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 19:53:35,899 INFO L933 BasicCegarLoop]: 8304 mSDtfsCounter, 0 mSDsluCounter, 8299 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16603 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.95ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.21ms IncrementalHoareTripleChecker+Time [2021-11-07 19:53:35,899 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 16603 Invalid, 6 Unknown, 0 Unchecked, 9.95ms Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 29.21ms Time] [2021-11-07 19:53:35,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10736 states. [2021-11-07 19:53:36,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10736 to 10736. [2021-11-07 19:53:36,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10736 states, 10729 states have (on average 1.3549259017615807) internal successors, (14537), 10735 states have internal predecessors, (14537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:53:36,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10736 states to 10736 states and 14537 transitions. [2021-11-07 19:53:36,110 INFO L78 Accepts]: Start accepts. Automaton has 10736 states and 14537 transitions. Word has length 114 [2021-11-07 19:53:36,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:53:36,111 INFO L470 AbstractCegarLoop]: Abstraction has 10736 states and 14537 transitions. [2021-11-07 19:53:36,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:53:36,111 INFO L276 IsEmpty]: Start isEmpty. Operand 10736 states and 14537 transitions. [2021-11-07 19:53:36,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-07 19:53:36,114 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:53:36,114 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 19:53:36,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 19:53:36,115 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-07 19:53:36,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:53:36,116 INFO L85 PathProgramCache]: Analyzing trace with hash 990559774, now seen corresponding path program 1 times [2021-11-07 19:53:36,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:53:36,117 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335752386] [2021-11-07 19:53:36,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:53:36,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:53:36,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:53:36,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 19:53:36,615 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:53:36,615 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335752386] [2021-11-07 19:53:36,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335752386] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:53:36,615 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:53:36,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-07 19:53:36,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921705230] [2021-11-07 19:53:36,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:53:36,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 19:53:36,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:53:36,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 19:53:36,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 19:53:36,619 INFO L87 Difference]: Start difference. First operand 10736 states and 14537 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:53:37,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:53:37,712 INFO L93 Difference]: Finished difference Result 33607 states and 45161 transitions. [2021-11-07 19:53:37,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 19:53:37,713 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-11-07 19:53:37,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:53:37,772 INFO L225 Difference]: With dead ends: 33607 [2021-11-07 19:53:37,773 INFO L226 Difference]: Without dead ends: 25855 [2021-11-07 19:53:37,794 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 132.77ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 19:53:37,795 INFO L933 BasicCegarLoop]: 12409 mSDtfsCounter, 24070 mSDsluCounter, 33100 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 116.29ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 24070 SdHoareTripleChecker+Valid, 45509 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 37.29ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 127.88ms IncrementalHoareTripleChecker+Time [2021-11-07 19:53:37,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24070 Valid, 45509 Invalid, 35 Unknown, 0 Unchecked, 37.29ms Time], IncrementalHoareTripleChecker [6 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 127.88ms Time] [2021-11-07 19:53:37,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25855 states. [2021-11-07 19:53:38,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25855 to 10745. [2021-11-07 19:53:38,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10745 states, 10738 states have (on average 1.3545352952132612) internal successors, (14545), 10744 states have internal predecessors, (14545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:53:38,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10745 states to 10745 states and 14545 transitions. [2021-11-07 19:53:38,149 INFO L78 Accepts]: Start accepts. Automaton has 10745 states and 14545 transitions. Word has length 114 [2021-11-07 19:53:38,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:53:38,150 INFO L470 AbstractCegarLoop]: Abstraction has 10745 states and 14545 transitions. [2021-11-07 19:53:38,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 5 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:53:38,150 INFO L276 IsEmpty]: Start isEmpty. Operand 10745 states and 14545 transitions. [2021-11-07 19:53:38,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-11-07 19:53:38,153 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:53:38,153 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 19:53:38,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 19:53:38,154 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-07 19:53:38,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:53:38,154 INFO L85 PathProgramCache]: Analyzing trace with hash 181213148, now seen corresponding path program 1 times [2021-11-07 19:53:38,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:53:38,154 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904297443] [2021-11-07 19:53:38,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:53:38,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:53:38,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:53:39,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 19:53:39,290 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:53:39,290 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904297443] [2021-11-07 19:53:39,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904297443] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:53:39,290 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:53:39,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-07 19:53:39,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539018318] [2021-11-07 19:53:39,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:53:39,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 19:53:39,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:53:39,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 19:53:39,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-07 19:53:39,291 INFO L87 Difference]: Start difference. First operand 10745 states and 14545 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:53:44,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:53:44,742 INFO L93 Difference]: Finished difference Result 37124 states and 50338 transitions. [2021-11-07 19:53:44,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-07 19:53:44,743 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2021-11-07 19:53:44,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:53:44,793 INFO L225 Difference]: With dead ends: 37124 [2021-11-07 19:53:44,794 INFO L226 Difference]: Without dead ends: 26461 [2021-11-07 19:53:44,813 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 966.57ms TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2021-11-07 19:53:44,814 INFO L933 BasicCegarLoop]: 10754 mSDtfsCounter, 66697 mSDsluCounter, 55860 mSDsCounter, 0 mSdLazyCounter, 911 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3331.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 66697 SdHoareTripleChecker+Valid, 66614 SdHoareTripleChecker+Invalid, 1086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 86.25ms SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 911 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3590.75ms IncrementalHoareTripleChecker+Time [2021-11-07 19:53:44,814 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66697 Valid, 66614 Invalid, 1086 Unknown, 0 Unchecked, 86.25ms Time], IncrementalHoareTripleChecker [175 Valid, 911 Invalid, 0 Unknown, 0 Unchecked, 3590.75ms Time] [2021-11-07 19:53:44,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26461 states. [2021-11-07 19:53:45,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26461 to 10751. [2021-11-07 19:53:45,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10751 states, 10744 states have (on average 1.35433730454207) internal successors, (14551), 10750 states have internal predecessors, (14551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:53:45,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10751 states to 10751 states and 14551 transitions. [2021-11-07 19:53:45,222 INFO L78 Accepts]: Start accepts. Automaton has 10751 states and 14551 transitions. Word has length 114 [2021-11-07 19:53:45,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:53:45,223 INFO L470 AbstractCegarLoop]: Abstraction has 10751 states and 14551 transitions. [2021-11-07 19:53:45,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.25) internal successors, (114), 8 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:53:45,223 INFO L276 IsEmpty]: Start isEmpty. Operand 10751 states and 14551 transitions. [2021-11-07 19:53:45,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-07 19:53:45,226 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:53:45,226 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 19:53:45,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 19:53:45,226 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-07 19:53:45,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:53:45,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1236339091, now seen corresponding path program 1 times [2021-11-07 19:53:45,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:53:45,227 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897843296] [2021-11-07 19:53:45,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:53:45,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:54:25,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 19:54:26,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 19:54:26,103 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 19:54:26,103 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897843296] [2021-11-07 19:54:26,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897843296] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 19:54:26,103 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 19:54:26,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-07 19:54:26,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337568103] [2021-11-07 19:54:26,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-07 19:54:26,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-07 19:54:26,103 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 19:54:26,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-07 19:54:26,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-11-07 19:54:26,104 INFO L87 Difference]: Start difference. First operand 10751 states and 14551 transitions. Second operand has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:54:29,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 19:54:29,627 INFO L93 Difference]: Finished difference Result 19842 states and 26671 transitions. [2021-11-07 19:54:29,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-07 19:54:29,628 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-11-07 19:54:29,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 19:54:29,649 INFO L225 Difference]: With dead ends: 19842 [2021-11-07 19:54:29,650 INFO L226 Difference]: Without dead ends: 12162 [2021-11-07 19:54:29,664 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 985.67ms TimeCoverageRelationStatistics Valid=107, Invalid=235, Unknown=0, NotChecked=0, Total=342 [2021-11-07 19:54:29,665 INFO L933 BasicCegarLoop]: 8296 mSDtfsCounter, 11529 mSDsluCounter, 74177 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2306.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11529 SdHoareTripleChecker+Valid, 82473 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 46.02ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2496.51ms IncrementalHoareTripleChecker+Time [2021-11-07 19:54:29,665 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11529 Valid, 82473 Invalid, 584 Unknown, 0 Unchecked, 46.02ms Time], IncrementalHoareTripleChecker [9 Valid, 575 Invalid, 0 Unknown, 0 Unchecked, 2496.51ms Time] [2021-11-07 19:54:29,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12162 states. [2021-11-07 19:54:29,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12162 to 10698. [2021-11-07 19:54:29,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10698 states, 10691 states have (on average 1.3543167149939201) internal successors, (14479), 10697 states have internal predecessors, (14479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:54:29,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10698 states to 10698 states and 14479 transitions. [2021-11-07 19:54:29,958 INFO L78 Accepts]: Start accepts. Automaton has 10698 states and 14479 transitions. Word has length 115 [2021-11-07 19:54:29,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 19:54:29,959 INFO L470 AbstractCegarLoop]: Abstraction has 10698 states and 14479 transitions. [2021-11-07 19:54:29,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.454545454545455) internal successors, (115), 11 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 19:54:29,959 INFO L276 IsEmpty]: Start isEmpty. Operand 10698 states and 14479 transitions. [2021-11-07 19:54:29,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-07 19:54:29,961 INFO L506 BasicCegarLoop]: Found error trace [2021-11-07 19:54:29,961 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 19:54:29,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-07 19:54:29,961 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2021-11-07 19:54:29,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 19:54:29,962 INFO L85 PathProgramCache]: Analyzing trace with hash -223439344, now seen corresponding path program 1 times [2021-11-07 19:54:29,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 19:54:29,962 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530162908] [2021-11-07 19:54:29,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:54:29,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 19:54:30,133 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 19:54:30,134 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1060536397] [2021-11-07 19:54:30,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 19:54:30,135 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 19:54:30,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-07 19:54:30,136 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 19:54:30,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process Killed by 15