./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c36dfa3b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 27c97bcf411d26ec272f425e404581082a84d844ce897669cae8d1db38d078c4 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-c36dfa3 [2021-11-04 08:58:02,883 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-04 08:58:02,884 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-04 08:58:02,934 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-04 08:58:02,938 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-04 08:58:02,941 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-04 08:58:02,943 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-04 08:58:02,944 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-04 08:58:02,946 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-04 08:58:02,947 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-04 08:58:02,947 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-04 08:58:02,949 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-04 08:58:02,949 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-04 08:58:02,954 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-04 08:58:02,955 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-04 08:58:02,956 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-04 08:58:02,958 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-04 08:58:02,959 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-04 08:58:02,960 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-04 08:58:02,964 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-04 08:58:02,968 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-04 08:58:02,969 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-04 08:58:02,970 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-04 08:58:02,970 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-04 08:58:02,972 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-04 08:58:02,973 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-04 08:58:02,973 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-04 08:58:02,974 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-04 08:58:02,974 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-04 08:58:02,975 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-04 08:58:02,975 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-04 08:58:02,975 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-04 08:58:02,976 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-04 08:58:02,976 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-04 08:58:02,977 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-04 08:58:02,977 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-04 08:58:02,977 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-04 08:58:02,977 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-04 08:58:02,978 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-04 08:58:02,978 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-04 08:58:02,979 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-04 08:58:02,979 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-04 08:58:02,996 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-04 08:58:02,997 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-04 08:58:02,997 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-04 08:58:02,997 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-04 08:58:02,998 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-04 08:58:02,998 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-04 08:58:02,998 INFO L138 SettingsManager]: * Use SBE=true [2021-11-04 08:58:02,999 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-04 08:58:02,999 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-04 08:58:02,999 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-04 08:58:02,999 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-04 08:58:03,000 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-04 08:58:03,000 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-04 08:58:03,000 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-04 08:58:03,000 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-04 08:58:03,000 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-04 08:58:03,000 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-04 08:58:03,000 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-04 08:58:03,001 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-04 08:58:03,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 08:58:03,001 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-04 08:58:03,001 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-04 08:58:03,001 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-04 08:58:03,001 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-04 08:58:03,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-04 08:58:03,002 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-04 08:58:03,002 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-04 08:58:03,002 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-04 08:58:03,002 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-04 08:58:03,002 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27c97bcf411d26ec272f425e404581082a84d844ce897669cae8d1db38d078c4 [2021-11-04 08:58:03,191 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-04 08:58:03,214 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-04 08:58:03,216 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-04 08:58:03,217 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-04 08:58:03,217 INFO L275 PluginConnector]: CDTParser initialized [2021-11-04 08:58:03,218 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i [2021-11-04 08:58:03,255 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/673cc0646/09e2bbe47563420aad448e49b71517e4/FLAG9a96b5501 [2021-11-04 08:58:04,032 INFO L306 CDTParser]: Found 1 translation units. [2021-11-04 08:58:04,033 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i [2021-11-04 08:58:04,120 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/673cc0646/09e2bbe47563420aad448e49b71517e4/FLAG9a96b5501 [2021-11-04 08:58:04,241 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/673cc0646/09e2bbe47563420aad448e49b71517e4 [2021-11-04 08:58:04,243 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-04 08:58:04,244 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-04 08:58:04,246 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-04 08:58:04,247 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-04 08:58:04,249 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-04 08:58:04,250 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 08:58:04" (1/1) ... [2021-11-04 08:58:04,251 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3194a58c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:58:04, skipping insertion in model container [2021-11-04 08:58:04,251 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 08:58:04" (1/1) ... [2021-11-04 08:58:04,255 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-04 08:58:04,386 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-04 08:58:08,415 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i[624921,624934] [2021-11-04 08:58:08,417 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i[625066,625079] [2021-11-04 08:58:08,435 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 08:58:08,514 INFO L203 MainTranslator]: Completed pre-run [2021-11-04 08:58:08,992 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i[624921,624934] [2021-11-04 08:58:08,993 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i[625066,625079] [2021-11-04 08:58:08,998 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-04 08:58:09,183 INFO L208 MainTranslator]: Completed translation [2021-11-04 08:58:09,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:58:09 WrapperNode [2021-11-04 08:58:09,184 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-04 08:58:09,185 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-04 08:58:09,185 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-04 08:58:09,185 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-04 08:58:09,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:58:09" (1/1) ... [2021-11-04 08:58:09,333 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:58:09" (1/1) ... [2021-11-04 08:58:10,169 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-04 08:58:10,170 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-04 08:58:10,170 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-04 08:58:10,170 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-04 08:58:10,176 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:58:09" (1/1) ... [2021-11-04 08:58:10,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:58:09" (1/1) ... [2021-11-04 08:58:10,476 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:58:09" (1/1) ... [2021-11-04 08:58:10,477 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:58:09" (1/1) ... [2021-11-04 08:58:11,156 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:58:09" (1/1) ... [2021-11-04 08:58:11,275 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:58:09" (1/1) ... [2021-11-04 08:58:11,367 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:58:09" (1/1) ... [2021-11-04 08:58:11,545 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-04 08:58:11,546 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-04 08:58:11,546 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-04 08:58:11,546 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-04 08:58:11,550 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:58:09" (1/1) ... [2021-11-04 08:58:11,555 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-04 08:58:11,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-04 08:58:11,570 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) [2021-11-04 08:58:11,577 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 [2021-11-04 08:58:11,606 INFO L130 BoogieDeclarations]: Found specification of procedure __put_user_bad [2021-11-04 08:58:11,606 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-04 08:58:11,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-04 08:58:11,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-04 08:58:11,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-04 08:58:11,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-04 08:58:11,607 INFO L130 BoogieDeclarations]: Found specification of procedure __get_user_bad [2021-11-04 08:58:11,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-04 08:58:11,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-04 08:58:11,607 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-04 08:58:11,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-04 08:58:11,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-04 08:58:11,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-04 08:58:11,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-04 08:58:11,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-04 08:58:11,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-04 08:58:11,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-04 08:58:11,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-04 08:58:11,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-04 09:02:25,998 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-04 09:02:25,999 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-04 09:02:25,999 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-04 09:02:26,000 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-04 09:02:26,001 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11661-1: __copy_from_user_nocheck_#t~ret1202 := copy_user_generic_#res;__copy_from_user_nocheck_~tmp___2~9 := __copy_from_user_nocheck_#t~ret1202;havoc __copy_from_user_nocheck_#t~ret1202;__copy_from_user_nocheck_#res := (if __copy_from_user_nocheck_~tmp___2~9 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_from_user_nocheck_~tmp___2~9 % 18446744073709551616 % 4294967296 else __copy_from_user_nocheck_~tmp___2~9 % 18446744073709551616 % 4294967296 - 4294967296); [2021-11-04 09:02:26,001 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11661-3: __copy_from_user_nocheck_#t~ret1202 := copy_user_generic_#res;__copy_from_user_nocheck_~tmp___2~9 := __copy_from_user_nocheck_#t~ret1202;havoc __copy_from_user_nocheck_#t~ret1202;__copy_from_user_nocheck_#res := (if __copy_from_user_nocheck_~tmp___2~9 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_from_user_nocheck_~tmp___2~9 % 18446744073709551616 % 4294967296 else __copy_from_user_nocheck_~tmp___2~9 % 18446744073709551616 % 4294967296 - 4294967296); [2021-11-04 09:02:26,001 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11661-5: __copy_to_user_nocheck_#t~ret1207 := copy_user_generic_#res;__copy_to_user_nocheck_~tmp___2~10 := __copy_to_user_nocheck_#t~ret1207;havoc __copy_to_user_nocheck_#t~ret1207;__copy_to_user_nocheck_#res := (if __copy_to_user_nocheck_~tmp___2~10 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_to_user_nocheck_~tmp___2~10 % 18446744073709551616 % 4294967296 else __copy_to_user_nocheck_~tmp___2~10 % 18446744073709551616 % 4294967296 - 4294967296); [2021-11-04 09:02:26,001 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11661-7: __copy_to_user_nocheck_#t~ret1207 := copy_user_generic_#res;__copy_to_user_nocheck_~tmp___2~10 := __copy_to_user_nocheck_#t~ret1207;havoc __copy_to_user_nocheck_#t~ret1207;__copy_to_user_nocheck_#res := (if __copy_to_user_nocheck_~tmp___2~10 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_to_user_nocheck_~tmp___2~10 % 18446744073709551616 % 4294967296 else __copy_to_user_nocheck_~tmp___2~10 % 18446744073709551616 % 4294967296 - 4294967296); [2021-11-04 09:02:26,001 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11680: __copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-04 09:02:26,001 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11680-1: __copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-04 09:02:26,001 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11683-1: assume 2 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-04 09:02:26,002 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11683-1: assume !(2 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-04 09:02:26,002 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11683: assume 2 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-04 09:02:26,002 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11683: assume !(2 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-04 09:02:26,002 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11684: __copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-04 09:02:26,002 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11684-1: __copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-04 09:02:26,002 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11687-1: assume 4 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-04 09:02:26,002 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11687-1: assume !(4 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-04 09:02:26,002 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11687: assume 4 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-04 09:02:26,002 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11687: assume !(4 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-04 09:02:26,003 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11688: __copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-04 09:02:26,003 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11688-1: __copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-04 09:02:26,003 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11691-1: assume 8 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-04 09:02:26,003 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11691-1: assume !(8 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-04 09:02:26,003 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11691: assume 8 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-04 09:02:26,003 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11691: assume !(8 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-04 09:02:26,004 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11692: __copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-04 09:02:26,004 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11692-1: __copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-04 09:02:26,004 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11695-1: assume 10 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-04 09:02:26,004 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11695-1: assume !(10 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-04 09:02:26,004 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11695: assume 10 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-04 09:02:26,004 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11695: assume !(10 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-04 09:02:26,004 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11696: ldv__builtin_expect_#in~exp, ldv__builtin_expect_#in~c := (if 0 != __copy_from_user_nocheck_~ret~17 then 1 else 0), 0;havoc ldv__builtin_expect_#res;havoc ldv__builtin_expect_~exp, ldv__builtin_expect_~c;ldv__builtin_expect_~exp := ldv__builtin_expect_#in~exp;ldv__builtin_expect_~c := ldv__builtin_expect_#in~c;ldv__builtin_expect_#res := ldv__builtin_expect_~exp; [2021-11-04 09:02:26,004 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11696-1: ldv__builtin_expect_#in~exp, ldv__builtin_expect_#in~c := (if 0 != __copy_from_user_nocheck_~ret~17 then 1 else 0), 0;havoc ldv__builtin_expect_#res;havoc ldv__builtin_expect_~exp, ldv__builtin_expect_~c;ldv__builtin_expect_~exp := ldv__builtin_expect_#in~exp;ldv__builtin_expect_~c := ldv__builtin_expect_#in~c;ldv__builtin_expect_#res := ldv__builtin_expect_~exp; [2021-11-04 09:02:26,005 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11699-1: assume 16 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-04 09:02:26,005 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11699-1: assume !(16 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-04 09:02:26,005 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11699: assume 16 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-04 09:02:26,005 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11699: assume !(16 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-04 09:02:26,005 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11700: ldv__builtin_expect_#in~exp, ldv__builtin_expect_#in~c := (if 0 != __copy_from_user_nocheck_~ret~17 then 1 else 0), 0;havoc ldv__builtin_expect_#res;havoc ldv__builtin_expect_~exp, ldv__builtin_expect_~c;ldv__builtin_expect_~exp := ldv__builtin_expect_#in~exp;ldv__builtin_expect_~c := ldv__builtin_expect_#in~c;ldv__builtin_expect_#res := ldv__builtin_expect_~exp; [2021-11-04 09:02:26,006 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11700-1: ldv__builtin_expect_#in~exp, ldv__builtin_expect_#in~c := (if 0 != __copy_from_user_nocheck_~ret~17 then 1 else 0), 0;havoc ldv__builtin_expect_#res;havoc ldv__builtin_expect_~exp, ldv__builtin_expect_~c;ldv__builtin_expect_~exp := ldv__builtin_expect_#in~exp;ldv__builtin_expect_~c := ldv__builtin_expect_#in~c;ldv__builtin_expect_#res := ldv__builtin_expect_~exp; [2021-11-04 09:02:26,011 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11703-1: copy_user_generic_#in~to.base, copy_user_generic_#in~to.offset, copy_user_generic_#in~from.base, copy_user_generic_#in~from.offset, copy_user_generic_#in~len := __copy_from_user_nocheck_~dst.base, __copy_from_user_nocheck_~dst.offset, __copy_from_user_nocheck_~src.base, __copy_from_user_nocheck_~src.offset, __copy_from_user_nocheck_~size;havoc copy_user_generic_#res;havoc copy_user_generic_~to.base, copy_user_generic_~to.offset, copy_user_generic_~from.base, copy_user_generic_~from.offset, copy_user_generic_~len, copy_user_generic_~ret~16;copy_user_generic_~to.base, copy_user_generic_~to.offset := copy_user_generic_#in~to.base, copy_user_generic_#in~to.offset;copy_user_generic_~from.base, copy_user_generic_~from.offset := copy_user_generic_#in~from.base, copy_user_generic_#in~from.offset;copy_user_generic_~len := copy_user_generic_#in~len;havoc copy_user_generic_~ret~16;copy_user_generic_#res := copy_user_generic_~ret~16 % 4294967296; [2021-11-04 09:02:26,011 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11703: copy_user_generic_#in~to.base, copy_user_generic_#in~to.offset, copy_user_generic_#in~from.base, copy_user_generic_#in~from.offset, copy_user_generic_#in~len := __copy_from_user_nocheck_~dst.base, __copy_from_user_nocheck_~dst.offset, __copy_from_user_nocheck_~src.base, __copy_from_user_nocheck_~src.offset, __copy_from_user_nocheck_~size;havoc copy_user_generic_#res;havoc copy_user_generic_~to.base, copy_user_generic_~to.offset, copy_user_generic_~from.base, copy_user_generic_~from.offset, copy_user_generic_~len, copy_user_generic_~ret~16;copy_user_generic_~to.base, copy_user_generic_~to.offset := copy_user_generic_#in~to.base, copy_user_generic_#in~to.offset;copy_user_generic_~from.base, copy_user_generic_~from.offset := copy_user_generic_#in~from.base, copy_user_generic_#in~from.offset;copy_user_generic_~len := copy_user_generic_#in~len;havoc copy_user_generic_~ret~16;copy_user_generic_#res := copy_user_generic_~ret~16 % 4294967296; [2021-11-04 09:02:26,011 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11731-1: assume 0 != __copy_from_user_nocheck_~tmp___0~23;__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-04 09:02:26,011 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11731-1: assume !(0 != __copy_from_user_nocheck_~tmp___0~23);__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-04 09:02:26,011 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11731: assume 0 != __copy_from_user_nocheck_~tmp___0~23;__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-04 09:02:26,011 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11731: assume !(0 != __copy_from_user_nocheck_~tmp___0~23);__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-04 09:02:26,011 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11746: assume 0 != __copy_from_user_nocheck_~tmp___1~13;__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-04 09:02:26,011 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11746: assume !(0 != __copy_from_user_nocheck_~tmp___1~13);__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-04 09:02:26,012 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11746-1: assume 0 != __copy_from_user_nocheck_~tmp___1~13;__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-04 09:02:26,012 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11746-1: assume !(0 != __copy_from_user_nocheck_~tmp___1~13);__copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-04 09:02:26,012 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11789-1: __copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-04 09:02:26,012 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11789: __copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-04 09:02:26,012 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11792: assume 2 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-04 09:02:26,012 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11792: assume !(2 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-04 09:02:26,012 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11792-1: assume 2 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-04 09:02:26,012 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11792-1: assume !(2 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-04 09:02:26,012 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11793-1: __copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-04 09:02:26,012 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11793: __copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-04 09:02:26,012 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11796: assume 4 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-04 09:02:26,012 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11796: assume !(4 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-04 09:02:26,012 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11796-1: assume 4 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-04 09:02:26,012 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11796-1: assume !(4 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-04 09:02:26,012 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11797-1: __copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-04 09:02:26,013 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11797: __copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-04 09:02:26,013 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11800: assume 8 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-04 09:02:26,013 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11800: assume !(8 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-04 09:02:26,013 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11800-1: assume 8 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-04 09:02:26,013 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11800-1: assume !(8 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-04 09:02:26,013 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11801-1: __copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-04 09:02:26,013 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11801: __copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-04 09:02:26,013 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11804: assume 10 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-04 09:02:26,013 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11804: assume !(10 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-04 09:02:26,013 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11804-1: assume 10 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-04 09:02:26,013 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11804-1: assume !(10 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-04 09:02:26,013 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11805-1: ldv__builtin_expect_#in~exp, ldv__builtin_expect_#in~c := (if 0 != __copy_to_user_nocheck_~ret~18 then 1 else 0), 0;havoc ldv__builtin_expect_#res;havoc ldv__builtin_expect_~exp, ldv__builtin_expect_~c;ldv__builtin_expect_~exp := ldv__builtin_expect_#in~exp;ldv__builtin_expect_~c := ldv__builtin_expect_#in~c;ldv__builtin_expect_#res := ldv__builtin_expect_~exp; [2021-11-04 09:02:26,013 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11805: ldv__builtin_expect_#in~exp, ldv__builtin_expect_#in~c := (if 0 != __copy_to_user_nocheck_~ret~18 then 1 else 0), 0;havoc ldv__builtin_expect_#res;havoc ldv__builtin_expect_~exp, ldv__builtin_expect_~c;ldv__builtin_expect_~exp := ldv__builtin_expect_#in~exp;ldv__builtin_expect_~c := ldv__builtin_expect_#in~c;ldv__builtin_expect_#res := ldv__builtin_expect_~exp; [2021-11-04 09:02:26,013 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11808: assume 16 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-04 09:02:26,013 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11808: assume !(16 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-04 09:02:26,013 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11808-1: assume 16 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-04 09:02:26,013 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11808-1: assume !(16 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-04 09:02:26,014 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11809-1: ldv__builtin_expect_#in~exp, ldv__builtin_expect_#in~c := (if 0 != __copy_to_user_nocheck_~ret~18 then 1 else 0), 0;havoc ldv__builtin_expect_#res;havoc ldv__builtin_expect_~exp, ldv__builtin_expect_~c;ldv__builtin_expect_~exp := ldv__builtin_expect_#in~exp;ldv__builtin_expect_~c := ldv__builtin_expect_#in~c;ldv__builtin_expect_#res := ldv__builtin_expect_~exp; [2021-11-04 09:02:26,014 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11809: ldv__builtin_expect_#in~exp, ldv__builtin_expect_#in~c := (if 0 != __copy_to_user_nocheck_~ret~18 then 1 else 0), 0;havoc ldv__builtin_expect_#res;havoc ldv__builtin_expect_~exp, ldv__builtin_expect_~c;ldv__builtin_expect_~exp := ldv__builtin_expect_#in~exp;ldv__builtin_expect_~c := ldv__builtin_expect_#in~c;ldv__builtin_expect_#res := ldv__builtin_expect_~exp; [2021-11-04 09:02:26,014 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11812: copy_user_generic_#in~to.base, copy_user_generic_#in~to.offset, copy_user_generic_#in~from.base, copy_user_generic_#in~from.offset, copy_user_generic_#in~len := __copy_to_user_nocheck_~dst.base, __copy_to_user_nocheck_~dst.offset, __copy_to_user_nocheck_~src.base, __copy_to_user_nocheck_~src.offset, __copy_to_user_nocheck_~size;havoc copy_user_generic_#res;havoc copy_user_generic_~to.base, copy_user_generic_~to.offset, copy_user_generic_~from.base, copy_user_generic_~from.offset, copy_user_generic_~len, copy_user_generic_~ret~16;copy_user_generic_~to.base, copy_user_generic_~to.offset := copy_user_generic_#in~to.base, copy_user_generic_#in~to.offset;copy_user_generic_~from.base, copy_user_generic_~from.offset := copy_user_generic_#in~from.base, copy_user_generic_#in~from.offset;copy_user_generic_~len := copy_user_generic_#in~len;havoc copy_user_generic_~ret~16;copy_user_generic_#res := copy_user_generic_~ret~16 % 4294967296; [2021-11-04 09:02:26,014 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11812-1: copy_user_generic_#in~to.base, copy_user_generic_#in~to.offset, copy_user_generic_#in~from.base, copy_user_generic_#in~from.offset, copy_user_generic_#in~len := __copy_to_user_nocheck_~dst.base, __copy_to_user_nocheck_~dst.offset, __copy_to_user_nocheck_~src.base, __copy_to_user_nocheck_~src.offset, __copy_to_user_nocheck_~size;havoc copy_user_generic_#res;havoc copy_user_generic_~to.base, copy_user_generic_~to.offset, copy_user_generic_~from.base, copy_user_generic_~from.offset, copy_user_generic_~len, copy_user_generic_~ret~16;copy_user_generic_~to.base, copy_user_generic_~to.offset := copy_user_generic_#in~to.base, copy_user_generic_#in~to.offset;copy_user_generic_~from.base, copy_user_generic_~from.offset := copy_user_generic_#in~from.base, copy_user_generic_#in~from.offset;copy_user_generic_~len := copy_user_generic_#in~len;havoc copy_user_generic_~ret~16;copy_user_generic_#res := copy_user_generic_~ret~16 % 4294967296; [2021-11-04 09:02:26,014 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11835-1: assume 0 != __copy_to_user_nocheck_~tmp___0~24;__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-04 09:02:26,014 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11835-1: assume !(0 != __copy_to_user_nocheck_~tmp___0~24);__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-04 09:02:26,014 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11835: assume 0 != __copy_to_user_nocheck_~tmp___0~24;__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-04 09:02:26,014 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11835: assume !(0 != __copy_to_user_nocheck_~tmp___0~24);__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-04 09:02:26,014 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11849-1: assume 0 != __copy_to_user_nocheck_~tmp___1~14;__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-04 09:02:26,014 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11849-1: assume !(0 != __copy_to_user_nocheck_~tmp___1~14);__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-04 09:02:26,014 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11849: assume 0 != __copy_to_user_nocheck_~tmp___1~14;__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-04 09:02:26,014 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11849: assume !(0 != __copy_to_user_nocheck_~tmp___1~14);__copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-04 09:02:26,015 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-04 09:02:26,015 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break: ldv_switch_4_#res := 0; [2021-11-04 09:02:26,015 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break: ldv_switch_3_#res := 0; [2021-11-04 09:02:26,016 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L20934-14: __copy_to_user_nocheck_#t~ret1206 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret1206 && __copy_to_user_nocheck_#t~ret1206 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___1~14 := __copy_to_user_nocheck_#t~ret1206;havoc __copy_to_user_nocheck_#t~ret1206; [2021-11-04 09:02:26,016 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L20934-13: __copy_to_user_nocheck_#t~ret1205 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret1205 && __copy_to_user_nocheck_#t~ret1205 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___0~24 := __copy_to_user_nocheck_#t~ret1205;havoc __copy_to_user_nocheck_#t~ret1205; [2021-11-04 09:02:26,016 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L20934-16: __copy_to_user_nocheck_#t~ret1205 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret1205 && __copy_to_user_nocheck_#t~ret1205 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___0~24 := __copy_to_user_nocheck_#t~ret1205;havoc __copy_to_user_nocheck_#t~ret1205; [2021-11-04 09:02:26,016 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L20934-17: __copy_to_user_nocheck_#t~ret1206 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret1206 && __copy_to_user_nocheck_#t~ret1206 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___1~14 := __copy_to_user_nocheck_#t~ret1206;havoc __copy_to_user_nocheck_#t~ret1206; [2021-11-04 09:02:26,016 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L20934-6: __copy_from_user_nocheck_#t~ret1201 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret1201 && __copy_from_user_nocheck_#t~ret1201 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___1~13 := __copy_from_user_nocheck_#t~ret1201;havoc __copy_from_user_nocheck_#t~ret1201; [2021-11-04 09:02:26,016 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L20934-5: __copy_from_user_nocheck_#t~ret1200 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret1200 && __copy_from_user_nocheck_#t~ret1200 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___0~23 := __copy_from_user_nocheck_#t~ret1200;havoc __copy_from_user_nocheck_#t~ret1200; [2021-11-04 09:02:26,017 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L20934-10: __copy_from_user_nocheck_#t~ret1201 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret1201 && __copy_from_user_nocheck_#t~ret1201 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___1~13 := __copy_from_user_nocheck_#t~ret1201;havoc __copy_from_user_nocheck_#t~ret1201; [2021-11-04 09:02:26,017 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L20934-9: __copy_from_user_nocheck_#t~ret1200 := ldv__builtin_expect_#res;assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret1200 && __copy_from_user_nocheck_#t~ret1200 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___0~23 := __copy_from_user_nocheck_#t~ret1200;havoc __copy_from_user_nocheck_#t~ret1200; [2021-11-04 09:02:26,017 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-04 09:02:26,017 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8333: assume !(1 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-04 09:02:26,017 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8332: assume 1 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-04 09:02:26,017 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8281: assume 1 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-04 09:02:26,017 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8282: assume !(1 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-04 09:02:26,018 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8179: assume !(1 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-04 09:02:26,018 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8178: assume 1 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-04 09:02:26,022 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8096: assume !(1 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-04 09:02:26,022 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8095: assume 1 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-04 09:02:26,052 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-04 09:02:26,052 INFO L299 CfgBuilder]: Removed 6735 assume(true) statements. [2021-11-04 09:02:26,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 09:02:26 BoogieIcfgContainer [2021-11-04 09:02:26,061 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-04 09:02:26,063 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-04 09:02:26,063 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-04 09:02:26,065 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-04 09:02:26,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 08:58:04" (1/3) ... [2021-11-04 09:02:26,066 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@607654a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 09:02:26, skipping insertion in model container [2021-11-04 09:02:26,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 08:58:09" (2/3) ... [2021-11-04 09:02:26,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@607654a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 09:02:26, skipping insertion in model container [2021-11-04 09:02:26,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 09:02:26" (3/3) ... [2021-11-04 09:02:26,068 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i [2021-11-04 09:02:26,072 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-04 09:02:26,072 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 88 error locations. [2021-11-04 09:02:26,137 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-04 09:02:26,142 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 [2021-11-04 09:02:26,143 INFO L340 AbstractCegarLoop]: Starting to check reachability of 88 error locations. [2021-11-04 09:02:26,239 INFO L276 IsEmpty]: Start isEmpty. Operand has 8627 states, 8539 states have (on average 1.4443143225202015) internal successors, (12333), 8626 states have internal predecessors, (12333), 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) [2021-11-04 09:02:26,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-04 09:02:26,252 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 09:02:26,253 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] [2021-11-04 09:02:26,253 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 85 more)] === [2021-11-04 09:02:26,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 09:02:26,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1385177132, now seen corresponding path program 1 times [2021-11-04 09:02:26,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 09:02:26,264 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948073651] [2021-11-04 09:02:26,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 09:02:26,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 09:02:26,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 09:02:27,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 09:02:27,251 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 09:02:27,251 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948073651] [2021-11-04 09:02:27,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948073651] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 09:02:27,252 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 09:02:27,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 09:02:27,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573419064] [2021-11-04 09:02:27,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 09:02:27,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 09:02:27,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 09:02:27,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 09:02:27,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:02:27,288 INFO L87 Difference]: Start difference. First operand has 8627 states, 8539 states have (on average 1.4443143225202015) internal successors, (12333), 8626 states have internal predecessors, (12333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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) [2021-11-04 09:02:29,517 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:03:04,320 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:03:51,588 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:04:11,085 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:04:19,437 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:04:25,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 09:04:25,838 INFO L93 Difference]: Finished difference Result 24922 states and 35734 transitions. [2021-11-04 09:04:25,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 09:04:25,842 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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 116 [2021-11-04 09:04:25,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 09:04:25,904 INFO L225 Difference]: With dead ends: 24922 [2021-11-04 09:04:25,905 INFO L226 Difference]: Without dead ends: 15837 [2021-11-04 09:04:25,922 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.75ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:04:25,924 INFO L933 BasicCegarLoop]: 386 mSDtfsCounter, 11335 mSDsluCounter, 12125 mSDsCounter, 0 mSdLazyCounter, 23557 mSolverCounterSat, 13 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 107677.44ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11335 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 23573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 182.05ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 23557 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 116205.55ms IncrementalHoareTripleChecker+Time [2021-11-04 09:04:25,925 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11335 Valid, 772 Invalid, 23573 Unknown, 0 Unchecked, 182.05ms Time], IncrementalHoareTripleChecker [13 Valid, 23557 Invalid, 3 Unknown, 0 Unchecked, 116205.55ms Time] [2021-11-04 09:04:25,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15837 states. [2021-11-04 09:04:26,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15837 to 15656. [2021-11-04 09:04:26,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15656 states, 15568 states have (on average 1.4104573484069887) internal successors, (21958), 15655 states have internal predecessors, (21958), 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) [2021-11-04 09:04:26,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15656 states to 15656 states and 21958 transitions. [2021-11-04 09:04:26,350 INFO L78 Accepts]: Start accepts. Automaton has 15656 states and 21958 transitions. Word has length 116 [2021-11-04 09:04:26,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 09:04:26,353 INFO L470 AbstractCegarLoop]: Abstraction has 15656 states and 21958 transitions. [2021-11-04 09:04:26,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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) [2021-11-04 09:04:26,355 INFO L276 IsEmpty]: Start isEmpty. Operand 15656 states and 21958 transitions. [2021-11-04 09:04:26,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-04 09:04:26,360 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 09:04:26,360 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 09:04:26,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-04 09:04:26,361 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr79ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 85 more)] === [2021-11-04 09:04:26,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 09:04:26,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1399360569, now seen corresponding path program 1 times [2021-11-04 09:04:26,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 09:04:26,362 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305987286] [2021-11-04 09:04:26,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 09:04:26,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 09:04:26,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 09:04:27,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 09:04:27,003 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 09:04:27,003 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305987286] [2021-11-04 09:04:27,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305987286] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 09:04:27,003 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 09:04:27,003 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 09:04:27,003 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36406904] [2021-11-04 09:04:27,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 09:04:27,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 09:04:27,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 09:04:27,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 09:04:27,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:04:27,005 INFO L87 Difference]: Start difference. First operand 15656 states and 21958 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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) [2021-11-04 09:04:29,217 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:04:57,410 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:05:17,712 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:06:05,179 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:06:30,737 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:06:48,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 09:06:48,319 INFO L93 Difference]: Finished difference Result 44607 states and 62827 transitions. [2021-11-04 09:06:48,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 09:06:48,320 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 124 [2021-11-04 09:06:48,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 09:06:48,415 INFO L225 Difference]: With dead ends: 44607 [2021-11-04 09:06:48,415 INFO L226 Difference]: Without dead ends: 29203 [2021-11-04 09:06:48,445 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.30ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:06:48,449 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 9695 mSDsluCounter, 11291 mSDsCounter, 0 mSdLazyCounter, 22694 mSolverCounterSat, 13 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 128827.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9695 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 22711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 147.35ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 22694 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 139119.06ms IncrementalHoareTripleChecker+Time [2021-11-04 09:06:48,449 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9695 Valid, 0 Invalid, 22711 Unknown, 0 Unchecked, 147.35ms Time], IncrementalHoareTripleChecker [13 Valid, 22694 Invalid, 4 Unknown, 0 Unchecked, 139119.06ms Time] [2021-11-04 09:06:48,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29203 states. [2021-11-04 09:06:48,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29203 to 29032. [2021-11-04 09:06:48,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29032 states, 28944 states have (on average 1.417737700386954) internal successors, (41035), 29031 states have internal predecessors, (41035), 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) [2021-11-04 09:06:48,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29032 states to 29032 states and 41035 transitions. [2021-11-04 09:06:48,994 INFO L78 Accepts]: Start accepts. Automaton has 29032 states and 41035 transitions. Word has length 124 [2021-11-04 09:06:48,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 09:06:48,994 INFO L470 AbstractCegarLoop]: Abstraction has 29032 states and 41035 transitions. [2021-11-04 09:06:48,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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) [2021-11-04 09:06:48,996 INFO L276 IsEmpty]: Start isEmpty. Operand 29032 states and 41035 transitions. [2021-11-04 09:06:49,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-04 09:06:49,004 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 09:06:49,004 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 09:06:49,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-04 09:06:49,005 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 85 more)] === [2021-11-04 09:06:49,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 09:06:49,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1768079499, now seen corresponding path program 1 times [2021-11-04 09:06:49,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 09:06:49,006 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244857507] [2021-11-04 09:06:49,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 09:06:49,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 09:06:49,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 09:06:49,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 09:06:49,564 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 09:06:49,565 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244857507] [2021-11-04 09:06:49,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244857507] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 09:06:49,565 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 09:06:49,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 09:06:49,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373436615] [2021-11-04 09:06:49,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 09:06:49,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 09:06:49,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 09:06:49,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 09:06:49,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:06:49,566 INFO L87 Difference]: Start difference. First operand 29032 states and 41035 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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) [2021-11-04 09:06:51,868 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:07:24,160 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:07:26,343 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:08:43,450 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:08:56,885 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:09:10,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-04 09:09:10,855 INFO L93 Difference]: Finished difference Result 63412 states and 89393 transitions. [2021-11-04 09:09:10,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-04 09:09:10,856 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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 128 [2021-11-04 09:09:10,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-04 09:09:10,936 INFO L225 Difference]: With dead ends: 63412 [2021-11-04 09:09:10,937 INFO L226 Difference]: Without dead ends: 34632 [2021-11-04 09:09:10,983 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.93ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:09:10,986 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 2536 mSDsluCounter, 11309 mSDsCounter, 0 mSdLazyCounter, 22693 mSolverCounterSat, 16 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 129122.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2536 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 22712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 123.98ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 22693 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 139607.26ms IncrementalHoareTripleChecker+Time [2021-11-04 09:09:10,988 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2536 Valid, 0 Invalid, 22712 Unknown, 0 Unchecked, 123.98ms Time], IncrementalHoareTripleChecker [16 Valid, 22693 Invalid, 3 Unknown, 0 Unchecked, 139607.26ms Time] [2021-11-04 09:09:11,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34632 states. [2021-11-04 09:09:11,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34632 to 34588. [2021-11-04 09:09:11,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34588 states, 34500 states have (on average 1.407623188405797) internal successors, (48563), 34587 states have internal predecessors, (48563), 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) [2021-11-04 09:09:11,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34588 states to 34588 states and 48563 transitions. [2021-11-04 09:09:11,713 INFO L78 Accepts]: Start accepts. Automaton has 34588 states and 48563 transitions. Word has length 128 [2021-11-04 09:09:11,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-04 09:09:11,715 INFO L470 AbstractCegarLoop]: Abstraction has 34588 states and 48563 transitions. [2021-11-04 09:09:11,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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) [2021-11-04 09:09:11,715 INFO L276 IsEmpty]: Start isEmpty. Operand 34588 states and 48563 transitions. [2021-11-04 09:09:11,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-11-04 09:09:11,723 INFO L506 BasicCegarLoop]: Found error trace [2021-11-04 09:09:11,724 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-04 09:09:11,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-04 09:09:11,725 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 85 more)] === [2021-11-04 09:09:11,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-04 09:09:11,726 INFO L85 PathProgramCache]: Analyzing trace with hash 335522577, now seen corresponding path program 1 times [2021-11-04 09:09:11,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-04 09:09:11,726 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492183642] [2021-11-04 09:09:11,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-04 09:09:11,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-04 09:09:11,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-04 09:09:12,212 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-04 09:09:12,212 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-04 09:09:12,212 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492183642] [2021-11-04 09:09:12,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492183642] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-04 09:09:12,212 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-04 09:09:12,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-04 09:09:12,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960756471] [2021-11-04 09:09:12,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-04 09:09:12,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-04 09:09:12,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-04 09:09:12,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-04 09:09:12,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-04 09:09:12,213 INFO L87 Difference]: Start difference. First operand 34588 states and 48563 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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) [2021-11-04 09:09:14,837 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.62s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:10:51,513 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:11:05,439 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:11:06,983 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-04 09:11:27,940 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15