./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 5f08f0f0 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-5f08f0f [2021-11-05 19:51:29,177 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 19:51:29,179 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 19:51:29,215 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 19:51:29,216 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 19:51:29,219 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 19:51:29,221 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 19:51:29,226 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 19:51:29,228 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 19:51:29,232 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 19:51:29,233 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 19:51:29,236 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 19:51:29,237 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 19:51:29,239 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 19:51:29,241 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 19:51:29,243 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 19:51:29,243 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 19:51:29,244 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 19:51:29,248 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 19:51:29,251 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 19:51:29,253 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 19:51:29,254 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 19:51:29,256 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 19:51:29,257 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 19:51:29,263 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 19:51:29,263 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 19:51:29,263 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 19:51:29,265 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 19:51:29,265 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 19:51:29,266 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 19:51:29,266 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 19:51:29,267 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 19:51:29,268 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 19:51:29,269 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 19:51:29,270 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 19:51:29,270 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 19:51:29,270 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 19:51:29,271 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 19:51:29,271 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 19:51:29,272 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 19:51:29,273 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 19:51:29,277 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 19:51:29,308 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 19:51:29,309 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 19:51:29,310 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 19:51:29,310 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 19:51:29,311 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 19:51:29,312 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 19:51:29,312 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 19:51:29,312 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 19:51:29,312 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 19:51:29,312 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 19:51:29,313 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 19:51:29,313 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 19:51:29,314 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 19:51:29,314 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 19:51:29,314 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 19:51:29,314 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 19:51:29,314 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 19:51:29,314 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 19:51:29,315 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 19:51:29,315 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 19:51:29,315 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 19:51:29,315 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 19:51:29,315 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 19:51:29,316 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 19:51:29,316 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 19:51:29,316 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 19:51:29,316 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 19:51:29,316 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 19:51:29,316 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 19:51:29,317 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27c97bcf411d26ec272f425e404581082a84d844ce897669cae8d1db38d078c4 [2021-11-05 19:51:29,607 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 19:51:29,628 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 19:51:29,630 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 19:51:29,631 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 19:51:29,632 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 19:51:29,634 INFO L432 ainManager$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 [2021-11-05 19:51:29,700 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/826ec192d/6540ce9ba6444f91814e41f8ad774116/FLAG6d897e9b2 [2021-11-05 19:51:30,629 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 19:51:30,630 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 [2021-11-05 19:51:30,716 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/826ec192d/6540ce9ba6444f91814e41f8ad774116/FLAG6d897e9b2 [2021-11-05 19:51:30,947 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/826ec192d/6540ce9ba6444f91814e41f8ad774116 [2021-11-05 19:51:30,949 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 19:51:30,950 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 19:51:30,951 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 19:51:30,951 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 19:51:30,954 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 19:51:30,954 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 07:51:30" (1/1) ... [2021-11-05 19:51:30,955 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f7ea7df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:51:30, skipping insertion in model container [2021-11-05 19:51:30,955 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 07:51:30" (1/1) ... [2021-11-05 19:51:30,961 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 19:51:31,129 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 19:51:35,487 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] [2021-11-05 19:51:35,490 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] [2021-11-05 19:51:35,515 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 19:51:35,612 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 19:51:36,272 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] [2021-11-05 19:51:36,273 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] [2021-11-05 19:51:36,279 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 19:51:36,601 INFO L208 MainTranslator]: Completed translation [2021-11-05 19:51:36,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:51:36 WrapperNode [2021-11-05 19:51:36,603 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 19:51:36,604 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 19:51:36,604 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 19:51:36,604 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 19:51:36,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:51:36" (1/1) ... [2021-11-05 19:51:36,862 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:51:36" (1/1) ... [2021-11-05 19:51:38,112 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 19:51:38,124 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 19:51:38,124 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 19:51:38,124 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 19:51:38,145 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:51:36" (1/1) ... [2021-11-05 19:51:38,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:51:36" (1/1) ... [2021-11-05 19:51:38,530 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:51:36" (1/1) ... [2021-11-05 19:51:38,531 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:51:36" (1/1) ... [2021-11-05 19:51:39,199 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:51:36" (1/1) ... [2021-11-05 19:51:39,521 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:51:36" (1/1) ... [2021-11-05 19:51:39,640 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:51:36" (1/1) ... [2021-11-05 19:51:39,825 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 19:51:39,826 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 19:51:39,826 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 19:51:39,826 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 19:51:39,827 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:51:36" (1/1) ... [2021-11-05 19:51:39,832 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 19:51:39,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 19:51:39,856 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) [2021-11-05 19:51:39,864 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 [2021-11-05 19:51:39,892 INFO L130 BoogieDeclarations]: Found specification of procedure __put_user_bad [2021-11-05 19:51:39,894 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-05 19:51:39,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 19:51:39,894 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-05 19:51:39,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 19:51:39,894 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 19:51:39,895 INFO L130 BoogieDeclarations]: Found specification of procedure __get_user_bad [2021-11-05 19:51:39,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 19:51:39,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 19:51:39,895 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-05 19:51:39,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 19:51:39,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 19:51:39,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 19:51:39,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 19:51:39,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 19:51:39,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 19:51:39,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 19:51:39,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 19:51:39,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 19:57:10,660 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-05 19:57:10,661 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-05 19:57:10,661 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-05 19:57:10,662 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-05 19:57:10,662 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); [2021-11-05 19:57:10,662 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); [2021-11-05 19:57:10,663 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); [2021-11-05 19:57:10,663 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); [2021-11-05 19:57:10,663 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11680: __copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-05 19:57:10,663 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11680-1: __copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-05 19:57:10,663 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11683-1: assume 2 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-05 19:57:10,663 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11683-1: assume !(2 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-05 19:57:10,664 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11683: assume 2 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-05 19:57:10,664 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11683: assume !(2 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-05 19:57:10,664 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11684: __copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-05 19:57:10,664 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11684-1: __copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-05 19:57:10,664 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11687-1: assume 4 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-05 19:57:10,664 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11687-1: assume !(4 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-05 19:57:10,665 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11687: assume 4 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-05 19:57:10,665 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11687: assume !(4 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-05 19:57:10,665 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11688: __copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-05 19:57:10,665 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11688-1: __copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-05 19:57:10,665 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11691-1: assume 8 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-05 19:57:10,665 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11691-1: assume !(8 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-05 19:57:10,665 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11691: assume 8 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-05 19:57:10,666 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11691: assume !(8 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-05 19:57:10,666 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11692: __copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-05 19:57:10,666 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11692-1: __copy_from_user_nocheck_#res := __copy_from_user_nocheck_~ret~17; [2021-11-05 19:57:10,666 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11695-1: assume 10 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-05 19:57:10,666 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11695-1: assume !(10 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-05 19:57:10,666 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11695: assume 10 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-05 19:57:10,666 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11695: assume !(10 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-05 19:57:10,667 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; [2021-11-05 19:57:10,667 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; [2021-11-05 19:57:10,667 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11699-1: assume 16 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-05 19:57:10,667 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11699-1: assume !(16 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-05 19:57:10,667 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11699: assume 16 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-05 19:57:10,667 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11699: assume !(16 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-05 19:57:10,668 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; [2021-11-05 19:57:10,668 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; [2021-11-05 19:57:10,668 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; [2021-11-05 19:57:10,668 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; [2021-11-05 19:57:10,668 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; [2021-11-05 19:57:10,669 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; [2021-11-05 19:57:10,669 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; [2021-11-05 19:57:10,669 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; [2021-11-05 19:57:10,669 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; [2021-11-05 19:57:10,669 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; [2021-11-05 19:57:10,669 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; [2021-11-05 19:57:10,670 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; [2021-11-05 19:57:10,670 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11789-1: __copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-05 19:57:10,670 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11789: __copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-05 19:57:10,670 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11792: assume 2 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-05 19:57:10,670 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11792: assume !(2 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-05 19:57:10,670 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11792-1: assume 2 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-05 19:57:10,671 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11792-1: assume !(2 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-05 19:57:10,671 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11793-1: __copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-05 19:57:10,671 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11793: __copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-05 19:57:10,671 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11796: assume 4 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-05 19:57:10,671 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11796: assume !(4 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-05 19:57:10,671 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11796-1: assume 4 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-05 19:57:10,671 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11796-1: assume !(4 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-05 19:57:10,672 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11797-1: __copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-05 19:57:10,672 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11797: __copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-05 19:57:10,672 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11800: assume 8 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-05 19:57:10,672 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11800: assume !(8 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-05 19:57:10,672 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11800-1: assume 8 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-05 19:57:10,672 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11800-1: assume !(8 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-05 19:57:10,672 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11801-1: __copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-05 19:57:10,673 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11801: __copy_to_user_nocheck_#res := __copy_to_user_nocheck_~ret~18; [2021-11-05 19:57:10,673 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11804: assume 10 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-05 19:57:10,673 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11804: assume !(10 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-05 19:57:10,673 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11804-1: assume 10 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-05 19:57:10,673 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11804-1: assume !(10 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-05 19:57:10,673 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; [2021-11-05 19:57:10,673 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; [2021-11-05 19:57:10,674 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11808: assume 16 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-05 19:57:10,674 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11808: assume !(16 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-05 19:57:10,674 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11808-1: assume 16 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-05 19:57:10,674 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint L11808-1: assume !(16 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-05 19:57:10,675 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; [2021-11-05 19:57:10,675 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; [2021-11-05 19:57:10,675 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; [2021-11-05 19:57:10,675 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; [2021-11-05 19:57:10,675 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; [2021-11-05 19:57:10,676 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; [2021-11-05 19:57:10,676 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; [2021-11-05 19:57:10,676 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; [2021-11-05 19:57:10,676 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; [2021-11-05 19:57:10,676 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; [2021-11-05 19:57:10,676 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; [2021-11-05 19:57:10,676 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; [2021-11-05 19:57:10,677 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-05 19:57:10,677 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break: ldv_switch_4_#res := 0; [2021-11-05 19:57:10,678 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break: ldv_switch_3_#res := 0; [2021-11-05 19:57:10,679 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; [2021-11-05 19:57:10,679 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; [2021-11-05 19:57:10,679 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; [2021-11-05 19:57:10,679 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; [2021-11-05 19:57:10,680 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; [2021-11-05 19:57:10,680 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; [2021-11-05 19:57:10,680 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; [2021-11-05 19:57:10,680 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; [2021-11-05 19:57:10,680 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-05 19:57:10,681 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8333: assume !(1 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-05 19:57:10,681 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8332: assume 1 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-05 19:57:10,681 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8281: assume 1 == __copy_to_user_nocheck_~size % 4294967296; [2021-11-05 19:57:10,681 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8282: assume !(1 == __copy_to_user_nocheck_~size % 4294967296); [2021-11-05 19:57:10,681 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8179: assume !(1 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-05 19:57:10,681 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8178: assume 1 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-05 19:57:10,682 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8096: assume !(1 == __copy_from_user_nocheck_~size % 4294967296); [2021-11-05 19:57:10,682 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8095: assume 1 == __copy_from_user_nocheck_~size % 4294967296; [2021-11-05 19:57:10,722 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 19:57:10,723 INFO L299 CfgBuilder]: Removed 6735 assume(true) statements. [2021-11-05 19:57:10,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 07:57:10 BoogieIcfgContainer [2021-11-05 19:57:10,731 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 19:57:10,733 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 19:57:10,733 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 19:57:10,736 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 19:57:10,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 07:51:30" (1/3) ... [2021-11-05 19:57:10,736 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f724eb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 07:57:10, skipping insertion in model container [2021-11-05 19:57:10,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:51:36" (2/3) ... [2021-11-05 19:57:10,737 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f724eb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 07:57:10, skipping insertion in model container [2021-11-05 19:57:10,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 07:57:10" (3/3) ... [2021-11-05 19:57:10,738 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-usb-uvc-uvcvideo.cil.i [2021-11-05 19:57:10,742 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 19:57:10,743 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 88 error locations. [2021-11-05 19:57:10,812 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 19:57:10,821 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 [2021-11-05 19:57:10,821 INFO L340 AbstractCegarLoop]: Starting to check reachability of 88 error locations. [2021-11-05 19:57:10,936 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) [2021-11-05 19:57:10,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-05 19:57:10,964 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:57:10,965 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] [2021-11-05 19:57:10,966 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)] === [2021-11-05 19:57:10,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:57:10,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1385177132, now seen corresponding path program 1 times [2021-11-05 19:57:10,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:57:10,981 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754091493] [2021-11-05 19:57:10,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:57:10,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:57:11,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:57:12,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:57:12,395 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:57:12,395 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754091493] [2021-11-05 19:57:12,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754091493] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:57:12,396 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:57:12,396 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:57:12,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714992470] [2021-11-05 19:57:12,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:57:12,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:57:12,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:57:12,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:57:12,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:57:12,466 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) [2021-11-05 19:57:14,756 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 19:57:15,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:57:15,696 INFO L93 Difference]: Finished difference Result 25081 states and 35962 transitions. [2021-11-05 19:57:15,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:57:15,700 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 [2021-11-05 19:57:15,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:57:15,791 INFO L225 Difference]: With dead ends: 25081 [2021-11-05 19:57:15,792 INFO L226 Difference]: Without dead ends: 15988 [2021-11-05 19:57:15,822 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 61.93ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:57:15,827 INFO L933 BasicCegarLoop]: 12158 mSDtfsCounter, 11562 mSDsluCounter, 12127 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2558.12ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11562 SdHoareTripleChecker+Valid, 24285 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 61.71ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2668.80ms IncrementalHoareTripleChecker+Time [2021-11-05 19:57:15,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11562 Valid, 24285 Invalid, 63 Unknown, 0 Unchecked, 61.71ms Time], IncrementalHoareTripleChecker [13 Valid, 49 Invalid, 1 Unknown, 0 Unchecked, 2668.80ms Time] [2021-11-05 19:57:15,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15988 states. [2021-11-05 19:57:16,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15988 to 15808. [2021-11-05 19:57:16,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15808 states, 15720 states have (on average 1.410559796437659) internal successors, (22174), 15807 states have internal predecessors, (22174), 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) [2021-11-05 19:57:16,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15808 states to 15808 states and 22174 transitions. [2021-11-05 19:57:16,319 INFO L78 Accepts]: Start accepts. Automaton has 15808 states and 22174 transitions. Word has length 116 [2021-11-05 19:57:16,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:57:16,321 INFO L470 AbstractCegarLoop]: Abstraction has 15808 states and 22174 transitions. [2021-11-05 19:57:16,322 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) [2021-11-05 19:57:16,323 INFO L276 IsEmpty]: Start isEmpty. Operand 15808 states and 22174 transitions. [2021-11-05 19:57:16,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-05 19:57:16,328 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:57:16,328 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] [2021-11-05 19:57:16,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 19:57:16,329 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)] === [2021-11-05 19:57:16,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:57:16,331 INFO L85 PathProgramCache]: Analyzing trace with hash -1399360569, now seen corresponding path program 1 times [2021-11-05 19:57:16,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:57:16,332 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943220037] [2021-11-05 19:57:16,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:57:16,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:57:16,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:57:17,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:57:17,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:57:17,384 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943220037] [2021-11-05 19:57:17,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943220037] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:57:17,384 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:57:17,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:57:17,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441674478] [2021-11-05 19:57:17,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:57:17,386 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:57:17,386 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:57:17,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:57:17,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:57:17,387 INFO L87 Difference]: Start difference. First operand 15808 states and 22174 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) [2021-11-05 19:57:19,673 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 19:57:20,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:57:20,855 INFO L93 Difference]: Finished difference Result 45214 states and 63685 transitions. [2021-11-05 19:57:20,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:57:20,857 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 [2021-11-05 19:57:20,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:57:20,971 INFO L225 Difference]: With dead ends: 45214 [2021-11-05 19:57:20,971 INFO L226 Difference]: Without dead ends: 29658 [2021-11-05 19:57:21,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.03ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:57:21,014 INFO L933 BasicCegarLoop]: 11341 mSDtfsCounter, 9906 mSDsluCounter, 11293 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2706.73ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9906 SdHoareTripleChecker+Valid, 22634 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 31.98ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2847.68ms IncrementalHoareTripleChecker+Time [2021-11-05 19:57:21,015 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9906 Valid, 22634 Invalid, 80 Unknown, 0 Unchecked, 31.98ms Time], IncrementalHoareTripleChecker [13 Valid, 66 Invalid, 1 Unknown, 0 Unchecked, 2847.68ms Time] [2021-11-05 19:57:21,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29658 states. [2021-11-05 19:57:21,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29658 to 29488. [2021-11-05 19:57:21,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29488 states, 29400 states have (on average 1.4177891156462585) internal successors, (41683), 29487 states have internal predecessors, (41683), 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) [2021-11-05 19:57:21,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29488 states to 29488 states and 41683 transitions. [2021-11-05 19:57:21,731 INFO L78 Accepts]: Start accepts. Automaton has 29488 states and 41683 transitions. Word has length 124 [2021-11-05 19:57:21,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:57:21,734 INFO L470 AbstractCegarLoop]: Abstraction has 29488 states and 41683 transitions. [2021-11-05 19:57:21,734 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) [2021-11-05 19:57:21,735 INFO L276 IsEmpty]: Start isEmpty. Operand 29488 states and 41683 transitions. [2021-11-05 19:57:21,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-05 19:57:21,740 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:57:21,740 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] [2021-11-05 19:57:21,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 19:57:21,741 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)] === [2021-11-05 19:57:21,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:57:21,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1768079499, now seen corresponding path program 1 times [2021-11-05 19:57:21,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:57:21,742 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327680906] [2021-11-05 19:57:21,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:57:21,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:57:22,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:57:22,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:57:22,465 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:57:22,465 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327680906] [2021-11-05 19:57:22,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327680906] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:57:22,465 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:57:22,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:57:22,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499458023] [2021-11-05 19:57:22,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:57:22,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:57:22,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:57:22,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:57:22,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:57:22,467 INFO L87 Difference]: Start difference. First operand 29488 states and 41683 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) [2021-11-05 19:57:24,744 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 19:57:25,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:57:25,737 INFO L93 Difference]: Finished difference Result 64324 states and 90689 transitions. [2021-11-05 19:57:25,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:57:25,738 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 [2021-11-05 19:57:25,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:57:25,844 INFO L225 Difference]: With dead ends: 64324 [2021-11-05 19:57:25,844 INFO L226 Difference]: Without dead ends: 35088 [2021-11-05 19:57:25,904 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 23.47ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:57:25,906 INFO L933 BasicCegarLoop]: 11340 mSDtfsCounter, 2536 mSDsluCounter, 11311 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2561.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2536 SdHoareTripleChecker+Valid, 22651 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.26ms SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2694.65ms IncrementalHoareTripleChecker+Time [2021-11-05 19:57:25,907 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2536 Valid, 22651 Invalid, 64 Unknown, 0 Unchecked, 20.26ms Time], IncrementalHoareTripleChecker [16 Valid, 47 Invalid, 1 Unknown, 0 Unchecked, 2694.65ms Time] [2021-11-05 19:57:25,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35088 states. [2021-11-05 19:57:26,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35088 to 35044. [2021-11-05 19:57:26,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35044 states, 34956 states have (on average 1.407798375100126) internal successors, (49211), 35043 states have internal predecessors, (49211), 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) [2021-11-05 19:57:26,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35044 states to 35044 states and 49211 transitions. [2021-11-05 19:57:26,701 INFO L78 Accepts]: Start accepts. Automaton has 35044 states and 49211 transitions. Word has length 128 [2021-11-05 19:57:26,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:57:26,702 INFO L470 AbstractCegarLoop]: Abstraction has 35044 states and 49211 transitions. [2021-11-05 19:57:26,703 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) [2021-11-05 19:57:26,703 INFO L276 IsEmpty]: Start isEmpty. Operand 35044 states and 49211 transitions. [2021-11-05 19:57:26,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-11-05 19:57:26,710 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:57:26,710 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] [2021-11-05 19:57:26,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 19:57:26,712 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)] === [2021-11-05 19:57:26,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:57:26,713 INFO L85 PathProgramCache]: Analyzing trace with hash 335522577, now seen corresponding path program 1 times [2021-11-05 19:57:26,713 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:57:26,714 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062651954] [2021-11-05 19:57:26,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:57:26,714 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:57:27,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:57:27,388 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:57:27,388 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:57:27,388 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062651954] [2021-11-05 19:57:27,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062651954] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:57:27,388 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:57:27,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:57:27,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418374444] [2021-11-05 19:57:27,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:57:27,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:57:27,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:57:27,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:57:27,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:57:27,390 INFO L87 Difference]: Start difference. First operand 35044 states and 49211 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) [2021-11-05 19:57:29,699 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 [] [2021-11-05 19:57:30,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:57:30,737 INFO L93 Difference]: Finished difference Result 77510 states and 108939 transitions. [2021-11-05 19:57:30,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:57:30,737 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 137 [2021-11-05 19:57:30,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:57:31,498 INFO L225 Difference]: With dead ends: 77510 [2021-11-05 19:57:31,498 INFO L226 Difference]: Without dead ends: 42718 [2021-11-05 19:57:31,567 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.25ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:57:31,569 INFO L933 BasicCegarLoop]: 11336 mSDtfsCounter, 9682 mSDsluCounter, 11254 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2685.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9682 SdHoareTripleChecker+Valid, 22590 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.68ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2776.86ms IncrementalHoareTripleChecker+Time [2021-11-05 19:57:31,570 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9682 Valid, 22590 Invalid, 78 Unknown, 0 Unchecked, 18.68ms Time], IncrementalHoareTripleChecker [14 Valid, 63 Invalid, 1 Unknown, 0 Unchecked, 2776.86ms Time] [2021-11-05 19:57:31,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42718 states. [2021-11-05 19:57:32,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42718 to 42562. [2021-11-05 19:57:32,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42562 states, 42474 states have (on average 1.4103922399585629) internal successors, (59905), 42561 states have internal predecessors, (59905), 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) [2021-11-05 19:57:32,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42562 states to 42562 states and 59905 transitions. [2021-11-05 19:57:32,575 INFO L78 Accepts]: Start accepts. Automaton has 42562 states and 59905 transitions. Word has length 137 [2021-11-05 19:57:32,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:57:32,575 INFO L470 AbstractCegarLoop]: Abstraction has 42562 states and 59905 transitions. [2021-11-05 19:57:32,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2021-11-05 19:57:32,576 INFO L276 IsEmpty]: Start isEmpty. Operand 42562 states and 59905 transitions. [2021-11-05 19:57:32,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-11-05 19:57:32,581 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:57:32,581 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 19:57:32,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 19:57:32,582 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 85 more)] === [2021-11-05 19:57:32,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:57:32,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1542030616, now seen corresponding path program 1 times [2021-11-05 19:57:32,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:57:32,583 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146445534] [2021-11-05 19:57:32,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:57:32,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:57:33,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:57:33,302 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:57:33,303 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:57:33,303 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146445534] [2021-11-05 19:57:33,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146445534] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:57:33,303 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:57:33,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:57:33,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678694080] [2021-11-05 19:57:33,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:57:33,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:57:33,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:57:33,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:57:33,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:57:33,304 INFO L87 Difference]: Start difference. First operand 42562 states and 59905 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 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) [2021-11-05 19:57:35,606 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 [] [2021-11-05 19:57:36,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:57:36,659 INFO L93 Difference]: Finished difference Result 112927 states and 158845 transitions. [2021-11-05 19:57:36,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:57:36,660 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 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 145 [2021-11-05 19:57:36,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:57:36,825 INFO L225 Difference]: With dead ends: 112927 [2021-11-05 19:57:36,825 INFO L226 Difference]: Without dead ends: 70617 [2021-11-05 19:57:36,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.00ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:57:36,917 INFO L933 BasicCegarLoop]: 19864 mSDtfsCounter, 11045 mSDsluCounter, 11340 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2381.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11045 SdHoareTripleChecker+Valid, 31204 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.19ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2464.57ms IncrementalHoareTripleChecker+Time [2021-11-05 19:57:36,918 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11045 Valid, 31204 Invalid, 19 Unknown, 0 Unchecked, 18.19ms Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 1 Unknown, 0 Unchecked, 2464.57ms Time] [2021-11-05 19:57:36,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70617 states. [2021-11-05 19:57:38,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70617 to 70409. [2021-11-05 19:57:38,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70409 states, 70321 states have (on average 1.4089105672558695) internal successors, (99076), 70408 states have internal predecessors, (99076), 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) [2021-11-05 19:57:38,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70409 states to 70409 states and 99076 transitions. [2021-11-05 19:57:38,539 INFO L78 Accepts]: Start accepts. Automaton has 70409 states and 99076 transitions. Word has length 145 [2021-11-05 19:57:38,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:57:38,540 INFO L470 AbstractCegarLoop]: Abstraction has 70409 states and 99076 transitions. [2021-11-05 19:57:38,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 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) [2021-11-05 19:57:38,540 INFO L276 IsEmpty]: Start isEmpty. Operand 70409 states and 99076 transitions. [2021-11-05 19:57:38,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-11-05 19:57:38,551 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:57:38,551 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 19:57:38,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 19:57:38,552 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 85 more)] === [2021-11-05 19:57:38,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:57:38,552 INFO L85 PathProgramCache]: Analyzing trace with hash -874023518, now seen corresponding path program 1 times [2021-11-05 19:57:38,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:57:38,553 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021656681] [2021-11-05 19:57:38,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:57:38,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:57:39,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:57:39,341 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:57:39,341 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:57:39,341 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021656681] [2021-11-05 19:57:39,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021656681] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:57:39,341 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:57:39,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:57:39,341 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425758067] [2021-11-05 19:57:39,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:57:39,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:57:39,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:57:39,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:57:39,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:57:39,343 INFO L87 Difference]: Start difference. First operand 70409 states and 99076 transitions. Second operand has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 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) [2021-11-05 19:57:41,638 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 19:57:44,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:57:44,135 INFO L93 Difference]: Finished difference Result 207665 states and 292844 transitions. [2021-11-05 19:57:44,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:57:44,136 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 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 188 [2021-11-05 19:57:44,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:57:44,464 INFO L225 Difference]: With dead ends: 207665 [2021-11-05 19:57:44,464 INFO L226 Difference]: Without dead ends: 138329 [2021-11-05 19:57:44,578 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.26ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:57:44,579 INFO L933 BasicCegarLoop]: 13758 mSDtfsCounter, 10936 mSDsluCounter, 11300 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2666.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10936 SdHoareTripleChecker+Valid, 25058 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.76ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2782.32ms IncrementalHoareTripleChecker+Time [2021-11-05 19:57:44,579 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10936 Valid, 25058 Invalid, 75 Unknown, 0 Unchecked, 20.76ms Time], IncrementalHoareTripleChecker [13 Valid, 61 Invalid, 1 Unknown, 0 Unchecked, 2782.32ms Time] [2021-11-05 19:57:44,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138329 states. [2021-11-05 19:57:47,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138329 to 138153. [2021-11-05 19:57:47,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138153 states, 138065 states have (on average 1.4114800999529207) internal successors, (194876), 138152 states have internal predecessors, (194876), 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) [2021-11-05 19:57:47,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138153 states to 138153 states and 194876 transitions. [2021-11-05 19:57:47,507 INFO L78 Accepts]: Start accepts. Automaton has 138153 states and 194876 transitions. Word has length 188 [2021-11-05 19:57:47,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:57:47,507 INFO L470 AbstractCegarLoop]: Abstraction has 138153 states and 194876 transitions. [2021-11-05 19:57:47,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 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) [2021-11-05 19:57:47,508 INFO L276 IsEmpty]: Start isEmpty. Operand 138153 states and 194876 transitions. [2021-11-05 19:57:47,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-11-05 19:57:47,520 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:57:47,521 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 19:57:47,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-05 19:57:47,521 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 85 more)] === [2021-11-05 19:57:47,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:57:47,522 INFO L85 PathProgramCache]: Analyzing trace with hash -450376796, now seen corresponding path program 1 times [2021-11-05 19:57:47,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:57:47,522 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010007228] [2021-11-05 19:57:47,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:57:47,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:57:47,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:57:48,559 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:57:48,559 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:57:48,560 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010007228] [2021-11-05 19:57:48,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010007228] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:57:48,560 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:57:48,560 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:57:48,560 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508155874] [2021-11-05 19:57:48,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:57:48,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:57:48,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:57:48,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:57:48,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:57:48,561 INFO L87 Difference]: Start difference. First operand 138153 states and 194876 transitions. Second operand has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 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) [2021-11-05 19:57:50,825 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 19:57:54,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:57:54,396 INFO L93 Difference]: Finished difference Result 343169 states and 484460 transitions. [2021-11-05 19:57:54,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:57:54,397 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 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 188 [2021-11-05 19:57:54,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:57:54,880 INFO L225 Difference]: With dead ends: 343169 [2021-11-05 19:57:54,880 INFO L226 Difference]: Without dead ends: 204838 [2021-11-05 19:57:55,063 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.74ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:57:55,064 INFO L933 BasicCegarLoop]: 22286 mSDtfsCounter, 10932 mSDsluCounter, 11304 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2609.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10932 SdHoareTripleChecker+Valid, 33590 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 20.60ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2735.19ms IncrementalHoareTripleChecker+Time [2021-11-05 19:57:55,064 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10932 Valid, 33590 Invalid, 76 Unknown, 0 Unchecked, 20.60ms Time], IncrementalHoareTripleChecker [13 Valid, 62 Invalid, 1 Unknown, 0 Unchecked, 2735.19ms Time] [2021-11-05 19:57:55,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204838 states. [2021-11-05 19:57:58,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204838 to 204662. [2021-11-05 19:57:59,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204662 states, 204574 states have (on average 1.4130534672050212) internal successors, (289074), 204661 states have internal predecessors, (289074), 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) [2021-11-05 19:57:59,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204662 states to 204662 states and 289074 transitions. [2021-11-05 19:57:59,438 INFO L78 Accepts]: Start accepts. Automaton has 204662 states and 289074 transitions. Word has length 188 [2021-11-05 19:57:59,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:57:59,439 INFO L470 AbstractCegarLoop]: Abstraction has 204662 states and 289074 transitions. [2021-11-05 19:57:59,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 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) [2021-11-05 19:57:59,439 INFO L276 IsEmpty]: Start isEmpty. Operand 204662 states and 289074 transitions. [2021-11-05 19:57:59,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-11-05 19:57:59,453 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:57:59,453 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 19:57:59,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-05 19:57:59,454 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 85 more)] === [2021-11-05 19:57:59,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:57:59,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1527385567, now seen corresponding path program 1 times [2021-11-05 19:57:59,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:57:59,455 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124829146] [2021-11-05 19:57:59,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:57:59,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:58:00,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:58:00,588 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-05 19:58:00,588 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:58:00,588 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124829146] [2021-11-05 19:58:00,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124829146] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:58:00,588 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:58:00,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:58:00,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486947445] [2021-11-05 19:58:00,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:58:00,589 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:58:00,589 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:58:00,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:58:00,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:58:00,590 INFO L87 Difference]: Start difference. First operand 204662 states and 289074 transitions. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 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) [2021-11-05 19:58:02,797 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []