./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--net--usb--smsc95xx.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b 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--net--usb--smsc95xx.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 5eb3f0f7fbd0ab57546a0ac02256a38ed05a9424bb7a81ac298c225eddd7bc79 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 17:41:56,342 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 17:41:56,352 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 17:41:56,398 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 17:41:56,398 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 17:41:56,399 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 17:41:56,400 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 17:41:56,401 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 17:41:56,402 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 17:41:56,403 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 17:41:56,404 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 17:41:56,404 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 17:41:56,405 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 17:41:56,405 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 17:41:56,406 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 17:41:56,407 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 17:41:56,408 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 17:41:56,408 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 17:41:56,409 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 17:41:56,411 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 17:41:56,412 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 17:41:56,413 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 17:41:56,413 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 17:41:56,414 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 17:41:56,416 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 17:41:56,416 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 17:41:56,416 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 17:41:56,417 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 17:41:56,417 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 17:41:56,418 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 17:41:56,418 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 17:41:56,419 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 17:41:56,419 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 17:41:56,420 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 17:41:56,420 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 17:41:56,420 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 17:41:56,421 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 17:41:56,421 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 17:41:56,421 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 17:41:56,422 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 17:41:56,422 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 17:41:56,423 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-14 17:41:56,436 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 17:41:56,437 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 17:41:56,437 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 17:41:56,437 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 17:41:56,438 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 17:41:56,438 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 17:41:56,438 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 17:41:56,439 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 17:41:56,439 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 17:41:56,439 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 17:41:56,439 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 17:41:56,439 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 17:41:56,439 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 17:41:56,439 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 17:41:56,440 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 17:41:56,440 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 17:41:56,440 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 17:41:56,440 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 17:41:56,440 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 17:41:56,440 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 17:41:56,440 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 17:41:56,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 17:41:56,441 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 17:41:56,441 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 17:41:56,441 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 17:41:56,441 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 17:41:56,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 17:41:56,441 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 17:41:56,442 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 17:41:56,442 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 17:41:56,442 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 17:41:56,442 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5eb3f0f7fbd0ab57546a0ac02256a38ed05a9424bb7a81ac298c225eddd7bc79 [2021-12-14 17:41:56,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 17:41:56,622 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 17:41:56,623 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 17:41:56,624 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 17:41:56,625 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 17:41:56,625 INFO L432 ainManager$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--net--usb--smsc95xx.ko-entry_point.cil.out.i [2021-12-14 17:41:56,691 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35bf290c4/438c09ca5ea4483898370652de03bb3e/FLAG5a7eca77b [2021-12-14 17:41:57,248 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 17:41:57,248 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--net--usb--smsc95xx.ko-entry_point.cil.out.i [2021-12-14 17:41:57,279 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35bf290c4/438c09ca5ea4483898370652de03bb3e/FLAG5a7eca77b [2021-12-14 17:41:57,708 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35bf290c4/438c09ca5ea4483898370652de03bb3e [2021-12-14 17:41:57,710 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 17:41:57,711 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 17:41:57,713 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 17:41:57,713 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 17:41:57,715 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 17:41:57,716 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:41:57" (1/1) ... [2021-12-14 17:41:57,717 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@388dc857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:41:57, skipping insertion in model container [2021-12-14 17:41:57,717 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:41:57" (1/1) ... [2021-12-14 17:41:57,721 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 17:41:57,803 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 17:41:58,277 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--net--usb--smsc95xx.ko-entry_point.cil.out.i[158290,158303] [2021-12-14 17:41:59,017 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 17:41:59,051 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 17:41:59,173 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--net--usb--smsc95xx.ko-entry_point.cil.out.i[158290,158303] [2021-12-14 17:41:59,367 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 17:41:59,481 INFO L208 MainTranslator]: Completed translation [2021-12-14 17:41:59,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:41:59 WrapperNode [2021-12-14 17:41:59,482 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 17:41:59,483 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 17:41:59,483 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 17:41:59,484 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 17:41:59,488 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:41:59" (1/1) ... [2021-12-14 17:41:59,562 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:41:59" (1/1) ... [2021-12-14 17:41:59,692 INFO L137 Inliner]: procedures = 212, calls = 2651, calls flagged for inlining = 91, calls inlined = 91, statements flattened = 5842 [2021-12-14 17:41:59,693 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 17:41:59,694 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 17:41:59,694 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 17:41:59,694 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 17:41:59,699 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:41:59" (1/1) ... [2021-12-14 17:41:59,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:41:59" (1/1) ... [2021-12-14 17:41:59,739 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:41:59" (1/1) ... [2021-12-14 17:41:59,739 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:41:59" (1/1) ... [2021-12-14 17:41:59,820 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:41:59" (1/1) ... [2021-12-14 17:41:59,839 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:41:59" (1/1) ... [2021-12-14 17:41:59,860 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:41:59" (1/1) ... [2021-12-14 17:41:59,883 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 17:41:59,884 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 17:41:59,884 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 17:41:59,885 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 17:41:59,885 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:41:59" (1/1) ... [2021-12-14 17:41:59,891 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 17:41:59,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 17:41:59,908 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) [2021-12-14 17:41:59,915 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 [2021-12-14 17:41:59,940 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc95xx_read_reg [2021-12-14 17:41:59,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc95xx_read_reg [2021-12-14 17:41:59,941 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-14 17:41:59,941 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-14 17:41:59,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-14 17:41:59,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-14 17:41:59,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-14 17:41:59,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-14 17:41:59,941 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2021-12-14 17:41:59,942 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2021-12-14 17:41:59,942 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_reset [2021-12-14 17:41:59,942 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_reset [2021-12-14 17:41:59,942 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_link_reset [2021-12-14 17:41:59,942 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_link_reset [2021-12-14 17:41:59,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-14 17:41:59,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-14 17:41:59,943 INFO L130 BoogieDeclarations]: Found specification of procedure smsc_crc [2021-12-14 17:41:59,943 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc_crc [2021-12-14 17:41:59,943 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~X~~u16~0~X~$Pointer$~X~~u16~0~TO~int [2021-12-14 17:41:59,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~X~~u16~0~X~$Pointer$~X~~u16~0~TO~int [2021-12-14 17:41:59,943 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_ioctl [2021-12-14 17:41:59,943 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_ioctl [2021-12-14 17:41:59,943 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc95xx_mdio_write [2021-12-14 17:41:59,944 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc95xx_mdio_write [2021-12-14 17:41:59,944 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_read_reg [2021-12-14 17:41:59,944 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_read_reg [2021-12-14 17:41:59,944 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-14 17:41:59,944 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-14 17:41:59,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-14 17:41:59,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-14 17:41:59,945 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_tx_fixup [2021-12-14 17:41:59,945 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_tx_fixup [2021-12-14 17:41:59,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-14 17:41:59,945 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-14 17:41:59,945 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-14 17:41:59,945 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-14 17:41:59,945 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_write_reg_nopm [2021-12-14 17:41:59,946 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_write_reg_nopm [2021-12-14 17:41:59,946 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_change_mtu [2021-12-14 17:41:59,946 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_change_mtu [2021-12-14 17:41:59,946 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_mdio_write [2021-12-14 17:41:59,946 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_mdio_write [2021-12-14 17:41:59,946 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-14 17:41:59,946 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-14 17:41:59,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 17:41:59,947 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_enable_phy_wakeup_interrupts [2021-12-14 17:41:59,947 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_enable_phy_wakeup_interrupts [2021-12-14 17:41:59,947 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-14 17:41:59,947 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-14 17:41:59,947 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2021-12-14 17:41:59,947 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2021-12-14 17:41:59,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 17:41:59,948 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_write_cmd_nopm [2021-12-14 17:41:59,948 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-14 17:41:59,948 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-14 17:41:59,948 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2021-12-14 17:41:59,948 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-14 17:41:59,948 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-14 17:41:59,949 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_enter_suspend1 [2021-12-14 17:41:59,949 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_enter_suspend1 [2021-12-14 17:41:59,949 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_enter_suspend2 [2021-12-14 17:41:59,949 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_enter_suspend2 [2021-12-14 17:41:59,949 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_read_eeprom [2021-12-14 17:41:59,949 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_read_eeprom [2021-12-14 17:41:59,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 17:41:59,950 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_set_multicast [2021-12-14 17:41:59,950 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_set_multicast [2021-12-14 17:41:59,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 17:41:59,950 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_write_reg [2021-12-14 17:41:59,950 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_write_reg [2021-12-14 17:41:59,950 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_start_offset [2021-12-14 17:41:59,950 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_start_offset [2021-12-14 17:41:59,950 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_rx_csum_offload [2021-12-14 17:41:59,951 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_rx_csum_offload [2021-12-14 17:41:59,951 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-14 17:41:59,951 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-14 17:41:59,951 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-14 17:41:59,951 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-14 17:41:59,951 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-14 17:41:59,952 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-14 17:41:59,952 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-14 17:41:59,952 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-14 17:41:59,952 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_read_reg_nopm [2021-12-14 17:41:59,952 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_read_reg_nopm [2021-12-14 17:41:59,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-14 17:41:59,952 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-14 17:41:59,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-14 17:41:59,953 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2021-12-14 17:41:59,953 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2021-12-14 17:41:59,953 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_mdio_read [2021-12-14 17:41:59,953 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_mdio_read [2021-12-14 17:41:59,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-14 17:41:59,953 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_tx_timeout [2021-12-14 17:41:59,953 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_tx_timeout [2021-12-14 17:41:59,954 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc95xx_phy_wait_not_busy [2021-12-14 17:41:59,954 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc95xx_phy_wait_not_busy [2021-12-14 17:41:59,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 17:41:59,954 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2021-12-14 17:41:59,954 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2021-12-14 17:41:59,954 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2021-12-14 17:41:59,954 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2021-12-14 17:41:59,955 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_mdio_write_nopm [2021-12-14 17:41:59,955 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_mdio_write_nopm [2021-12-14 17:41:59,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-14 17:41:59,955 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-14 17:41:59,955 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_write_reg_async [2021-12-14 17:41:59,955 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_write_reg_async [2021-12-14 17:41:59,955 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_write_cmd [2021-12-14 17:41:59,955 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2021-12-14 17:41:59,956 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2021-12-14 17:41:59,956 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_read_cmd_nopm [2021-12-14 17:41:59,956 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-14 17:41:59,956 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-14 17:41:59,956 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_mdio_read_nopm [2021-12-14 17:41:59,956 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_mdio_read_nopm [2021-12-14 17:41:59,956 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_resume [2021-12-14 17:41:59,957 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_resume [2021-12-14 17:41:59,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 17:41:59,957 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2021-12-14 17:41:59,957 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2021-12-14 17:41:59,957 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-14 17:41:59,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-14 17:41:59,957 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_read_cmd [2021-12-14 17:41:59,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 17:41:59,958 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_2 [2021-12-14 17:41:59,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_2 [2021-12-14 17:41:59,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 17:41:59,958 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_status [2021-12-14 17:41:59,958 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_status [2021-12-14 17:41:59,958 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-14 17:41:59,959 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-14 17:41:59,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 17:41:59,959 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_start_rx_path [2021-12-14 17:41:59,959 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_start_rx_path [2021-12-14 17:41:59,959 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc95xx_mdio_read [2021-12-14 17:41:59,959 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc95xx_mdio_read [2021-12-14 17:41:59,959 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc95xx_write_reg [2021-12-14 17:41:59,960 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc95xx_write_reg [2021-12-14 17:41:59,960 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_eeprom_confirm_not_busy [2021-12-14 17:41:59,960 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_eeprom_confirm_not_busy [2021-12-14 17:41:59,960 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_set_features [2021-12-14 17:41:59,960 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_set_features [2021-12-14 17:41:59,960 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_manage_power [2021-12-14 17:41:59,960 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_manage_power [2021-12-14 17:41:59,961 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_rx_fixup [2021-12-14 17:41:59,961 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_rx_fixup [2021-12-14 17:41:59,961 INFO L130 BoogieDeclarations]: Found specification of procedure smsc95xx_wait_eeprom [2021-12-14 17:41:59,961 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc95xx_wait_eeprom [2021-12-14 17:41:59,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 17:41:59,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 17:41:59,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 17:42:00,496 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 17:42:00,498 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 17:42:00,645 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-14 17:42:09,461 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 17:42:09,475 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 17:42:09,476 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-14 17:42:09,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:42:09 BoogieIcfgContainer [2021-12-14 17:42:09,478 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 17:42:09,479 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 17:42:09,479 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 17:42:09,481 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 17:42:09,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:41:57" (1/3) ... [2021-12-14 17:42:09,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e3e0747 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:42:09, skipping insertion in model container [2021-12-14 17:42:09,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:41:59" (2/3) ... [2021-12-14 17:42:09,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e3e0747 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:42:09, skipping insertion in model container [2021-12-14 17:42:09,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:42:09" (3/3) ... [2021-12-14 17:42:09,483 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--usb--smsc95xx.ko-entry_point.cil.out.i [2021-12-14 17:42:09,488 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 17:42:09,489 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 17:42:09,526 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 17:42:09,535 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 [2021-12-14 17:42:09,535 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 17:42:09,598 INFO L276 IsEmpty]: Start isEmpty. Operand has 1455 states, 1058 states have (on average 1.4130434782608696) internal successors, (1495), 1074 states have internal predecessors, (1495), 331 states have call successors, (331), 65 states have call predecessors, (331), 64 states have return successors, (325), 325 states have call predecessors, (325), 325 states have call successors, (325) [2021-12-14 17:42:09,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-12-14 17:42:09,609 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:42:09,610 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:42:09,610 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:42:09,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:42:09,615 INFO L85 PathProgramCache]: Analyzing trace with hash 2069414914, now seen corresponding path program 1 times [2021-12-14 17:42:09,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:42:09,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841719580] [2021-12-14 17:42:09,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:42:09,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:42:09,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:42:10,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:42:10,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:42:10,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 17:42:10,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:42:10,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 17:42:10,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:42:10,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-14 17:42:10,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:42:10,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 17:42:10,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:42:10,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 17:42:10,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:42:10,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 17:42:10,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:42:10,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-14 17:42:10,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:42:10,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 17:42:10,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:42:10,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-14 17:42:10,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:42:10,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-14 17:42:10,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:42:10,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 17:42:10,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:42:10,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-14 17:42:10,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:42:10,213 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2021-12-14 17:42:10,214 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:42:10,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841719580] [2021-12-14 17:42:10,215 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841719580] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:42:10,215 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:42:10,215 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 17:42:10,216 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198672115] [2021-12-14 17:42:10,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:42:10,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 17:42:10,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:42:10,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 17:42:10,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 17:42:10,252 INFO L87 Difference]: Start difference. First operand has 1455 states, 1058 states have (on average 1.4130434782608696) internal successors, (1495), 1074 states have internal predecessors, (1495), 331 states have call successors, (331), 65 states have call predecessors, (331), 64 states have return successors, (325), 325 states have call predecessors, (325), 325 states have call successors, (325) Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2021-12-14 17:42:11,676 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:42:16,981 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:42:19,000 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:42:21,019 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:42:23,032 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:42:25,052 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:42:27,067 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:42:28,386 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:42:29,531 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:42:33,713 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:42:35,732 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:42:37,755 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:42:39,769 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:42:41,794 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:42:43,808 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:42:44,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:42:44,657 INFO L93 Difference]: Finished difference Result 4437 states and 6695 transitions. [2021-12-14 17:42:44,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 17:42:44,659 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 95 [2021-12-14 17:42:44,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:42:44,709 INFO L225 Difference]: With dead ends: 4437 [2021-12-14 17:42:44,709 INFO L226 Difference]: Without dead ends: 2951 [2021-12-14 17:42:44,727 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-14 17:42:44,733 INFO L933 BasicCegarLoop]: 2334 mSDtfsCounter, 2526 mSDsluCounter, 4540 mSDsCounter, 0 mSdLazyCounter, 1773 mSolverCounterSat, 1561 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2677 SdHoareTripleChecker+Valid, 6874 SdHoareTripleChecker+Invalid, 3346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1561 IncrementalHoareTripleChecker+Valid, 1773 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.1s IncrementalHoareTripleChecker+Time [2021-12-14 17:42:44,735 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2677 Valid, 6874 Invalid, 3346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1561 Valid, 1773 Invalid, 12 Unknown, 0 Unchecked, 34.1s Time] [2021-12-14 17:42:44,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2951 states. [2021-12-14 17:42:44,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2951 to 2796. [2021-12-14 17:42:44,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2796 states, 2047 states have (on average 1.406448461162677) internal successors, (2879), 2058 states have internal predecessors, (2879), 622 states have call successors, (622), 127 states have call predecessors, (622), 126 states have return successors, (616), 616 states have call predecessors, (616), 616 states have call successors, (616) [2021-12-14 17:42:44,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2796 states to 2796 states and 4117 transitions. [2021-12-14 17:42:44,995 INFO L78 Accepts]: Start accepts. Automaton has 2796 states and 4117 transitions. Word has length 95 [2021-12-14 17:42:44,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:42:44,997 INFO L470 AbstractCegarLoop]: Abstraction has 2796 states and 4117 transitions. [2021-12-14 17:42:45,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2021-12-14 17:42:45,002 INFO L276 IsEmpty]: Start isEmpty. Operand 2796 states and 4117 transitions. [2021-12-14 17:42:45,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-12-14 17:42:45,010 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:42:45,011 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:42:45,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 17:42:45,012 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:42:45,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:42:45,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1074232853, now seen corresponding path program 1 times [2021-12-14 17:42:45,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:42:45,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629155626] [2021-12-14 17:42:45,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:42:45,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:42:45,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:42:45,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:42:45,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:42:45,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 17:42:45,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:42:45,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 17:42:45,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:42:45,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-14 17:42:45,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:42:45,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 17:42:45,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:42:45,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 17:42:45,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:42:45,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 17:42:45,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:42:45,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-14 17:42:45,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:42:45,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 17:42:45,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:42:45,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-14 17:42:45,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:42:45,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-14 17:42:45,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:42:45,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 17:42:45,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:42:45,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-14 17:42:45,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:42:45,372 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2021-12-14 17:42:45,372 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:42:45,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629155626] [2021-12-14 17:42:45,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629155626] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:42:45,373 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:42:45,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 17:42:45,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193597130] [2021-12-14 17:42:45,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:42:45,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 17:42:45,374 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:42:45,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 17:42:45,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 17:42:45,375 INFO L87 Difference]: Start difference. First operand 2796 states and 4117 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2021-12-14 17:42:48,227 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:42:50,247 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:42:52,280 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:42:54,294 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:42:56,320 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:42:58,334 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:42:59,835 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:43:01,847 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:43:07,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:43:07,944 INFO L93 Difference]: Finished difference Result 7429 states and 10952 transitions. [2021-12-14 17:43:07,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 17:43:07,944 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 100 [2021-12-14 17:43:07,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:43:07,974 INFO L225 Difference]: With dead ends: 7429 [2021-12-14 17:43:07,974 INFO L226 Difference]: Without dead ends: 4662 [2021-12-14 17:43:07,988 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-14 17:43:07,989 INFO L933 BasicCegarLoop]: 2170 mSDtfsCounter, 1661 mSDsluCounter, 4273 mSDsCounter, 0 mSdLazyCounter, 1601 mSolverCounterSat, 1197 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1762 SdHoareTripleChecker+Valid, 6443 SdHoareTripleChecker+Invalid, 2805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1197 IncrementalHoareTripleChecker+Valid, 1601 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.3s IncrementalHoareTripleChecker+Time [2021-12-14 17:43:07,990 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1762 Valid, 6443 Invalid, 2805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1197 Valid, 1601 Invalid, 7 Unknown, 0 Unchecked, 22.3s Time] [2021-12-14 17:43:07,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4662 states. [2021-12-14 17:43:08,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4662 to 4460. [2021-12-14 17:43:08,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4460 states, 3274 states have (on average 1.40470372632865) internal successors, (4599), 3287 states have internal predecessors, (4599), 965 states have call successors, (965), 221 states have call predecessors, (965), 220 states have return successors, (959), 959 states have call predecessors, (959), 959 states have call successors, (959) [2021-12-14 17:43:08,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4460 states to 4460 states and 6523 transitions. [2021-12-14 17:43:08,214 INFO L78 Accepts]: Start accepts. Automaton has 4460 states and 6523 transitions. Word has length 100 [2021-12-14 17:43:08,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:43:08,214 INFO L470 AbstractCegarLoop]: Abstraction has 4460 states and 6523 transitions. [2021-12-14 17:43:08,215 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2021-12-14 17:43:08,215 INFO L276 IsEmpty]: Start isEmpty. Operand 4460 states and 6523 transitions. [2021-12-14 17:43:08,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-12-14 17:43:08,216 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:43:08,216 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:43:08,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 17:43:08,217 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:43:08,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:43:08,217 INFO L85 PathProgramCache]: Analyzing trace with hash -283100940, now seen corresponding path program 1 times [2021-12-14 17:43:08,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:43:08,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047081493] [2021-12-14 17:43:08,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:43:08,217 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:43:08,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:08,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:43:08,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:08,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 17:43:08,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:08,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 17:43:08,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:08,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-14 17:43:08,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:08,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 17:43:08,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:08,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 17:43:08,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:08,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 17:43:08,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:08,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-14 17:43:08,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:08,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 17:43:08,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:08,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-14 17:43:08,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:08,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-14 17:43:08,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:08,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 17:43:08,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:08,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2021-12-14 17:43:08,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:08,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-14 17:43:08,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:43:08,594 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2021-12-14 17:43:08,595 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:43:08,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047081493] [2021-12-14 17:43:08,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047081493] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:43:08,595 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:43:08,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 17:43:08,596 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690075887] [2021-12-14 17:43:08,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:43:08,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 17:43:08,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:43:08,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 17:43:08,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 17:43:08,597 INFO L87 Difference]: Start difference. First operand 4460 states and 6523 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14)