./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--rc--imon.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 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-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--rc--imon.ko-entry_point.cil.out.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 1dadd209c6e3ebdaafa15f295f1ec8ec38d24c8a1f9b514f05808fa8c7c3e21c --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 03:53:05,236 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 03:53:05,239 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 03:53:05,271 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 03:53:05,272 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 03:53:05,275 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 03:53:05,276 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 03:53:05,280 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 03:53:05,283 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 03:53:05,286 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 03:53:05,287 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 03:53:05,291 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 03:53:05,291 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 03:53:05,293 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 03:53:05,294 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 03:53:05,297 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 03:53:05,298 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 03:53:05,298 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 03:53:05,300 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 03:53:05,305 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 03:53:05,306 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 03:53:05,307 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 03:53:05,308 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 03:53:05,310 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 03:53:05,315 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 03:53:05,316 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 03:53:05,316 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 03:53:05,317 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 03:53:05,317 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 03:53:05,318 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 03:53:05,318 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 03:53:05,319 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 03:53:05,320 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 03:53:05,321 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 03:53:05,322 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 03:53:05,322 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 03:53:05,323 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 03:53:05,323 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 03:53:05,323 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 03:53:05,324 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 03:53:05,325 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 03:53:05,325 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-28 03:53:05,360 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 03:53:05,361 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 03:53:05,362 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 03:53:05,362 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 03:53:05,362 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 03:53:05,363 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 03:53:05,364 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 03:53:05,364 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 03:53:05,364 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 03:53:05,364 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 03:53:05,365 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 03:53:05,365 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 03:53:05,366 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 03:53:05,366 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 03:53:05,366 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 03:53:05,366 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 03:53:05,366 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 03:53:05,366 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 03:53:05,367 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 03:53:05,367 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 03:53:05,367 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 03:53:05,367 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 03:53:05,367 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 03:53:05,368 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 03:53:05,368 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 03:53:05,368 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 03:53:05,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 03:53:05,376 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 03:53:05,376 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 03:53:05,376 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 03:53:05,376 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1dadd209c6e3ebdaafa15f295f1ec8ec38d24c8a1f9b514f05808fa8c7c3e21c [2021-12-28 03:53:05,684 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 03:53:05,706 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 03:53:05,708 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 03:53:05,710 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 03:53:05,710 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 03:53:05,711 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--rc--imon.ko-entry_point.cil.out.i [2021-12-28 03:53:05,760 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a84925f1/0b3d33741fa7426eb24269b8e9678caf/FLAG4e8223a22 [2021-12-28 03:53:06,462 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 03:53:06,463 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--rc--imon.ko-entry_point.cil.out.i [2021-12-28 03:53:06,496 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a84925f1/0b3d33741fa7426eb24269b8e9678caf/FLAG4e8223a22 [2021-12-28 03:53:06,789 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a84925f1/0b3d33741fa7426eb24269b8e9678caf [2021-12-28 03:53:06,791 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 03:53:06,793 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 03:53:06,795 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 03:53:06,796 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 03:53:06,799 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 03:53:06,799 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 03:53:06" (1/1) ... [2021-12-28 03:53:06,800 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b041419 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:53:06, skipping insertion in model container [2021-12-28 03:53:06,800 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 03:53:06" (1/1) ... [2021-12-28 03:53:06,805 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 03:53:06,919 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 03:53:07,732 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--rc--imon.ko-entry_point.cil.out.i[117505,117518] [2021-12-28 03:53:08,306 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 03:53:08,373 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 03:53:08,464 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--rc--imon.ko-entry_point.cil.out.i[117505,117518] [2021-12-28 03:53:08,720 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 03:53:08,796 INFO L208 MainTranslator]: Completed translation [2021-12-28 03:53:08,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:53:08 WrapperNode [2021-12-28 03:53:08,798 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 03:53:08,799 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 03:53:08,800 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 03:53:08,800 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 03:53:08,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:53:08" (1/1) ... [2021-12-28 03:53:08,910 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:53:08" (1/1) ... [2021-12-28 03:53:09,074 INFO L137 Inliner]: procedures = 229, calls = 2526, calls flagged for inlining = 102, calls inlined = 99, statements flattened = 4859 [2021-12-28 03:53:09,075 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 03:53:09,075 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 03:53:09,075 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 03:53:09,076 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 03:53:09,083 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:53:08" (1/1) ... [2021-12-28 03:53:09,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:53:08" (1/1) ... [2021-12-28 03:53:09,168 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:53:08" (1/1) ... [2021-12-28 03:53:09,168 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:53:08" (1/1) ... [2021-12-28 03:53:09,286 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:53:08" (1/1) ... [2021-12-28 03:53:09,348 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:53:08" (1/1) ... [2021-12-28 03:53:09,401 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:53:08" (1/1) ... [2021-12-28 03:53:09,469 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 03:53:09,471 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 03:53:09,471 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 03:53:09,471 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 03:53:09,472 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:53:08" (1/1) ... [2021-12-28 03:53:09,491 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 03:53:09,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 03:53:09,511 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-28 03:53:09,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-28 03:53:09,557 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-12-28 03:53:09,558 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-12-28 03:53:09,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-12-28 03:53:09,558 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-12-28 03:53:09,558 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-12-28 03:53:09,558 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-28 03:53:09,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-28 03:53:09,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-28 03:53:09,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-28 03:53:09,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2021-12-28 03:53:09,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2021-12-28 03:53:09,559 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_rel [2021-12-28 03:53:09,560 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_rel [2021-12-28 03:53:09,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_26 [2021-12-28 03:53:09,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_26 [2021-12-28 03:53:09,560 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-28 03:53:09,560 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-28 03:53:09,560 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2021-12-28 03:53:09,561 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2021-12-28 03:53:09,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-28 03:53:09,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-28 03:53:09,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2021-12-28 03:53:09,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2021-12-28 03:53:09,561 INFO L130 BoogieDeclarations]: Found specification of procedure send_packet [2021-12-28 03:53:09,561 INFO L138 BoogieDeclarations]: Found implementation of procedure send_packet [2021-12-28 03:53:09,562 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2021-12-28 03:53:09,562 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2021-12-28 03:53:09,562 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-28 03:53:09,562 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-28 03:53:09,562 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-28 03:53:09,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-28 03:53:09,563 INFO L130 BoogieDeclarations]: Found specification of procedure imon_disconnect [2021-12-28 03:53:09,563 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_disconnect [2021-12-28 03:53:09,563 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister_dev [2021-12-28 03:53:09,563 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister_dev [2021-12-28 03:53:09,563 INFO L130 BoogieDeclarations]: Found specification of procedure rc_g_keycode_from_table [2021-12-28 03:53:09,563 INFO L138 BoogieDeclarations]: Found implementation of procedure rc_g_keycode_from_table [2021-12-28 03:53:09,563 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-28 03:53:09,564 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-28 03:53:09,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2021-12-28 03:53:09,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2021-12-28 03:53:09,565 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-28 03:53:09,565 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-28 03:53:09,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 03:53:09,565 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2021-12-28 03:53:09,565 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2021-12-28 03:53:09,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_10 [2021-12-28 03:53:09,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_10 [2021-12-28 03:53:09,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-28 03:53:09,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_11 [2021-12-28 03:53:09,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_11 [2021-12-28 03:53:09,566 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2021-12-28 03:53:09,566 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2021-12-28 03:53:09,567 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-28 03:53:09,567 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-28 03:53:09,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2021-12-28 03:53:09,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2021-12-28 03:53:09,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 03:53:09,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-28 03:53:09,569 INFO L130 BoogieDeclarations]: Found specification of procedure do_gettimeofday [2021-12-28 03:53:09,569 INFO L138 BoogieDeclarations]: Found implementation of procedure do_gettimeofday [2021-12-28 03:53:09,569 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-28 03:53:09,570 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-28 03:53:09,570 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-28 03:53:09,570 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-28 03:53:09,570 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-28 03:53:09,570 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-28 03:53:09,570 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-28 03:53:09,570 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-28 03:53:09,571 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2021-12-28 03:53:09,571 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2021-12-28 03:53:09,571 INFO L130 BoogieDeclarations]: Found specification of procedure usb_rx_callback_intf1 [2021-12-28 03:53:09,572 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_rx_callback_intf1 [2021-12-28 03:53:09,572 INFO L130 BoogieDeclarations]: Found specification of procedure usb_rx_callback_intf0 [2021-12-28 03:53:09,572 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_rx_callback_intf0 [2021-12-28 03:53:09,572 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2021-12-28 03:53:09,572 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2021-12-28 03:53:09,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-28 03:53:09,572 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-28 03:53:09,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-28 03:53:09,573 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-28 03:53:09,573 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-28 03:53:09,573 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2021-12-28 03:53:09,573 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2021-12-28 03:53:09,573 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-12-28 03:53:09,573 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-12-28 03:53:09,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-28 03:53:09,574 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2021-12-28 03:53:09,574 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2021-12-28 03:53:09,574 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_group [2021-12-28 03:53:09,574 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_group [2021-12-28 03:53:09,575 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 03:53:09,575 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2021-12-28 03:53:09,575 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2021-12-28 03:53:09,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_int_urb_7 [2021-12-28 03:53:09,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_int_urb_7 [2021-12-28 03:53:09,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-28 03:53:09,576 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-28 03:53:09,576 INFO L130 BoogieDeclarations]: Found specification of procedure lcd_write [2021-12-28 03:53:09,577 INFO L138 BoogieDeclarations]: Found implementation of procedure lcd_write [2021-12-28 03:53:09,577 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-28 03:53:09,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-28 03:53:09,578 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-12-28 03:53:09,578 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-12-28 03:53:09,578 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-28 03:53:09,578 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-28 03:53:09,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 03:53:09,578 INFO L130 BoogieDeclarations]: Found specification of procedure usb_to_input_id [2021-12-28 03:53:09,579 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_to_input_id [2021-12-28 03:53:09,579 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2021-12-28 03:53:09,579 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2021-12-28 03:53:09,579 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2021-12-28 03:53:09,579 INFO L138 BoogieDeclarations]: Found implementation of procedure noop_llseek [2021-12-28 03:53:09,580 INFO L130 BoogieDeclarations]: Found specification of procedure imon_incoming_packet [2021-12-28 03:53:09,580 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_incoming_packet [2021-12-28 03:53:09,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-28 03:53:09,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-28 03:53:09,580 INFO L130 BoogieDeclarations]: Found specification of procedure imon_remote_key_lookup [2021-12-28 03:53:09,581 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_remote_key_lookup [2021-12-28 03:53:09,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-28 03:53:09,583 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2021-12-28 03:53:09,583 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2021-12-28 03:53:09,584 INFO L130 BoogieDeclarations]: Found specification of procedure tv2int [2021-12-28 03:53:09,584 INFO L138 BoogieDeclarations]: Found implementation of procedure tv2int [2021-12-28 03:53:09,584 INFO L130 BoogieDeclarations]: Found specification of procedure stabilize [2021-12-28 03:53:09,586 INFO L138 BoogieDeclarations]: Found implementation of procedure stabilize [2021-12-28 03:53:09,586 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2021-12-28 03:53:09,586 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2021-12-28 03:53:09,586 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_6 [2021-12-28 03:53:09,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_6 [2021-12-28 03:53:09,592 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-28 03:53:09,592 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-28 03:53:09,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 03:53:09,592 INFO L130 BoogieDeclarations]: Found specification of procedure vfd_write [2021-12-28 03:53:09,592 INFO L138 BoogieDeclarations]: Found implementation of procedure vfd_write [2021-12-28 03:53:09,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-28 03:53:09,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-28 03:53:09,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-28 03:53:09,593 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2021-12-28 03:53:09,593 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2021-12-28 03:53:09,593 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-28 03:53:09,593 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2021-12-28 03:53:09,593 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2021-12-28 03:53:09,593 INFO L130 BoogieDeclarations]: Found specification of procedure display_close [2021-12-28 03:53:09,593 INFO L138 BoogieDeclarations]: Found implementation of procedure display_close [2021-12-28 03:53:09,594 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-28 03:53:09,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-28 03:53:09,594 INFO L130 BoogieDeclarations]: Found specification of procedure ___ratelimit [2021-12-28 03:53:09,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ___ratelimit [2021-12-28 03:53:09,594 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_dev [2021-12-28 03:53:09,594 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_dev [2021-12-28 03:53:09,594 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2021-12-28 03:53:09,595 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2021-12-28 03:53:09,595 INFO L130 BoogieDeclarations]: Found specification of procedure imon_find_endpoints [2021-12-28 03:53:09,595 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_find_endpoints [2021-12-28 03:53:09,596 INFO L130 BoogieDeclarations]: Found specification of procedure display_open [2021-12-28 03:53:09,596 INFO L138 BoogieDeclarations]: Found implementation of procedure display_open [2021-12-28 03:53:09,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2021-12-28 03:53:09,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2021-12-28 03:53:09,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 03:53:09,596 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2021-12-28 03:53:09,596 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2021-12-28 03:53:09,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 03:53:09,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 03:53:10,293 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 03:53:10,296 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 03:53:15,919 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-28 03:53:26,624 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2021-12-28 03:53:29,015 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 03:53:29,032 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 03:53:29,033 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-28 03:53:29,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 03:53:29 BoogieIcfgContainer [2021-12-28 03:53:29,035 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 03:53:29,037 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 03:53:29,037 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 03:53:29,039 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 03:53:29,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 03:53:06" (1/3) ... [2021-12-28 03:53:29,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4745ab96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 03:53:29, skipping insertion in model container [2021-12-28 03:53:29,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 03:53:08" (2/3) ... [2021-12-28 03:53:29,041 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4745ab96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 03:53:29, skipping insertion in model container [2021-12-28 03:53:29,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 03:53:29" (3/3) ... [2021-12-28 03:53:29,042 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--media--rc--imon.ko-entry_point.cil.out.i [2021-12-28 03:53:29,045 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 03:53:29,046 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 03:53:29,090 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 03:53:29,095 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-28 03:53:29,095 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 03:53:29,136 INFO L276 IsEmpty]: Start isEmpty. Operand has 1488 states, 1096 states have (on average 1.3895985401459854) internal successors, (1523), 1127 states have internal predecessors, (1523), 319 states have call successors, (319), 73 states have call predecessors, (319), 71 states have return successors, (310), 305 states have call predecessors, (310), 310 states have call successors, (310) [2021-12-28 03:53:29,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-12-28 03:53:29,146 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:53:29,147 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:53:29,147 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:53:29,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:53:29,152 INFO L85 PathProgramCache]: Analyzing trace with hash 351694781, now seen corresponding path program 1 times [2021-12-28 03:53:29,158 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:53:29,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651890885] [2021-12-28 03:53:29,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:53:29,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:53:29,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:29,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:53:29,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:29,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-28 03:53:29,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:29,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 03:53:29,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:29,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-28 03:53:29,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:29,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-28 03:53:29,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:29,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 03:53:29,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:29,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-28 03:53:29,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:29,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-28 03:53:29,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:29,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 03:53:29,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:29,852 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-12-28 03:53:29,853 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:53:29,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651890885] [2021-12-28 03:53:29,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651890885] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:53:29,854 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:53:29,855 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 03:53:29,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862453083] [2021-12-28 03:53:29,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:53:29,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 03:53:29,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:53:29,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 03:53:29,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 03:53:29,891 INFO L87 Difference]: Start difference. First operand has 1488 states, 1096 states have (on average 1.3895985401459854) internal successors, (1523), 1127 states have internal predecessors, (1523), 319 states have call successors, (319), 73 states have call predecessors, (319), 71 states have return successors, (310), 305 states have call predecessors, (310), 310 states have call successors, (310) Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2021-12-28 03:53:36,151 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:53:41,433 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:53:45,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:53:45,438 INFO L93 Difference]: Finished difference Result 4512 states and 6679 transitions. [2021-12-28 03:53:45,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 03:53:45,440 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 74 [2021-12-28 03:53:45,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:53:45,482 INFO L225 Difference]: With dead ends: 4512 [2021-12-28 03:53:45,482 INFO L226 Difference]: Without dead ends: 2999 [2021-12-28 03:53:45,494 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-28 03:53:45,502 INFO L933 BasicCegarLoop]: 2380 mSDtfsCounter, 2344 mSDsluCounter, 2705 mSDsCounter, 0 mSdLazyCounter, 1432 mSolverCounterSat, 737 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2583 SdHoareTripleChecker+Valid, 5085 SdHoareTripleChecker+Invalid, 2171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 737 IncrementalHoareTripleChecker+Valid, 1432 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2021-12-28 03:53:45,503 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2583 Valid, 5085 Invalid, 2171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [737 Valid, 1432 Invalid, 2 Unknown, 0 Unchecked, 15.2s Time] [2021-12-28 03:53:45,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2999 states. [2021-12-28 03:53:45,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2999 to 2875. [2021-12-28 03:53:45,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2875 states, 2137 states have (on average 1.3827795975666823) internal successors, (2955), 2173 states have internal predecessors, (2955), 597 states have call successors, (597), 141 states have call predecessors, (597), 140 states have return successors, (592), 582 states have call predecessors, (592), 592 states have call successors, (592) [2021-12-28 03:53:45,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2875 states to 2875 states and 4144 transitions. [2021-12-28 03:53:45,716 INFO L78 Accepts]: Start accepts. Automaton has 2875 states and 4144 transitions. Word has length 74 [2021-12-28 03:53:45,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:53:45,716 INFO L470 AbstractCegarLoop]: Abstraction has 2875 states and 4144 transitions. [2021-12-28 03:53:45,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2021-12-28 03:53:45,717 INFO L276 IsEmpty]: Start isEmpty. Operand 2875 states and 4144 transitions. [2021-12-28 03:53:45,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-12-28 03:53:45,722 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:53:45,723 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:53:45,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 03:53:45,723 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:53:45,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:53:45,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1853548450, now seen corresponding path program 1 times [2021-12-28 03:53:45,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:53:45,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899567347] [2021-12-28 03:53:45,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:53:45,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:53:45,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:45,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:53:45,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:46,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-28 03:53:46,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:46,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 03:53:46,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:46,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-28 03:53:46,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:46,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-28 03:53:46,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:46,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 03:53:46,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:46,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-28 03:53:46,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:46,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-28 03:53:46,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:46,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 03:53:46,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:46,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 03:53:46,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:53:46,112 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-12-28 03:53:46,112 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:53:46,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899567347] [2021-12-28 03:53:46,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899567347] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:53:46,113 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:53:46,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 03:53:46,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440483500] [2021-12-28 03:53:46,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:53:46,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 03:53:46,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:53:46,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 03:53:46,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 03:53:46,116 INFO L87 Difference]: Start difference. First operand 2875 states and 4144 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-12-28 03:53:49,320 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:53:50,522 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:53:53,400 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:53:54,984 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:53:57,123 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:53:59,350 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:54:00,768 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:54:02,361 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:54:05,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 03:54:05,528 INFO L93 Difference]: Finished difference Result 8826 states and 13022 transitions. [2021-12-28 03:54:05,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 03:54:05,529 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 83 [2021-12-28 03:54:05,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 03:54:05,564 INFO L225 Difference]: With dead ends: 8826 [2021-12-28 03:54:05,564 INFO L226 Difference]: Without dead ends: 5974 [2021-12-28 03:54:05,579 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-28 03:54:05,580 INFO L933 BasicCegarLoop]: 2546 mSDtfsCounter, 2379 mSDsluCounter, 2749 mSDsCounter, 0 mSdLazyCounter, 1477 mSolverCounterSat, 716 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2611 SdHoareTripleChecker+Valid, 5295 SdHoareTripleChecker+Invalid, 2195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 716 IncrementalHoareTripleChecker+Valid, 1477 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.2s IncrementalHoareTripleChecker+Time [2021-12-28 03:54:05,580 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2611 Valid, 5295 Invalid, 2195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [716 Valid, 1477 Invalid, 2 Unknown, 0 Unchecked, 19.2s Time] [2021-12-28 03:54:05,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5974 states. [2021-12-28 03:54:05,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5974 to 5768. [2021-12-28 03:54:05,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5768 states, 4289 states have (on average 1.3802751224061554) internal successors, (5920), 4359 states have internal predecessors, (5920), 1186 states have call successors, (1186), 281 states have call predecessors, (1186), 292 states have return successors, (1283), 1169 states have call predecessors, (1283), 1181 states have call successors, (1283) [2021-12-28 03:54:05,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5768 states to 5768 states and 8389 transitions. [2021-12-28 03:54:05,814 INFO L78 Accepts]: Start accepts. Automaton has 5768 states and 8389 transitions. Word has length 83 [2021-12-28 03:54:05,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 03:54:05,816 INFO L470 AbstractCegarLoop]: Abstraction has 5768 states and 8389 transitions. [2021-12-28 03:54:05,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-12-28 03:54:05,817 INFO L276 IsEmpty]: Start isEmpty. Operand 5768 states and 8389 transitions. [2021-12-28 03:54:05,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-12-28 03:54:05,821 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 03:54:05,822 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 03:54:05,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 03:54:05,823 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 03:54:05,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 03:54:05,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1624832766, now seen corresponding path program 1 times [2021-12-28 03:54:05,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 03:54:05,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549431525] [2021-12-28 03:54:05,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 03:54:05,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 03:54:05,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:54:06,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 03:54:06,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:54:06,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-28 03:54:06,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:54:06,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 03:54:06,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:54:06,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-28 03:54:06,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:54:06,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-28 03:54:06,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:54:06,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-28 03:54:06,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:54:06,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-28 03:54:06,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:54:06,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-28 03:54:06,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:54:06,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 03:54:06,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:54:06,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 03:54:06,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 03:54:06,138 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2021-12-28 03:54:06,138 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 03:54:06,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549431525] [2021-12-28 03:54:06,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549431525] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 03:54:06,138 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 03:54:06,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 03:54:06,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275524778] [2021-12-28 03:54:06,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 03:54:06,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 03:54:06,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 03:54:06,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 03:54:06,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 03:54:06,141 INFO L87 Difference]: Start difference. First operand 5768 states and 8389 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2021-12-28 03:54:07,618 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:54:09,709 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 03:54:11,749 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []